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Save jedie/6529046 to your computer and use it in GitHub Desktop.
information from (Graham E. Kinns): * http://dragon32.info/info/memmap.html - Dragon 32/64 Memory Map (with CoCo refs) * http://dragon32.info/info/romref.html - Dragon 32/64 ROM Reference guide
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| """ | |
| information from: | |
| * http://dragon32.info/info/memmap.html - Dragon 32/64 Memory Map (with CoCo refs) | |
| * http://dragon32.info/info/romref.html - Dragon 32/64 ROM Reference guide | |
| AUTHOR: Graham E. Kinns | |
| """ | |
| MEM_INFO=( | |
| (0x0, 0x0, "BREAK message flag - if negative print BREAK"), | |
| (0x1, 0x1, "String delimiting char (0x22 '"')"), | |
| (0x2, 0x2, "Another delimiting char (0x22 '"')"), | |
| (0x3, 0x3, "General counter byte"), | |
| (0x4, 0x4, "Count of IFs looking for ELSE"), | |
| (0x5, 0x5, "DIM flag"), | |
| (0x6, 0x6, "%VALTYP% Variable type flag (0x00 numeric, Non-0x00 string)"), | |
| (0x7, 0x7, "Garbage collection flag"), | |
| (0x8, 0x8, "Subscript allowed flag"), | |
| (0x9, 0x9, "INPUT/READ flag"), | |
| (0xa, 0xa, "Arithmetic use"), | |
| (0xb, 0xc, "String ptr first free temporary"), | |
| (0xd, 0xe, "String ptr last free temporary"), | |
| (0xf, 0x18, "Temporary results"), | |
| (0x19, 0x1a, "Start address of BASIC program ($1e01, $2401 with DOS)"), | |
| (0x1b, 0x1c, "Start address of simple variables"), | |
| (0x1d, 0x1e, "Start address of array variables"), | |
| (0x1f, 0x20, "End of storage, Start of unused mem after BASIC program"), | |
| (0x21, 0x22, "Top of stack, growing down ($7e36)"), | |
| (0x23, 0x24, "Top of free string space ($7ffe)"), | |
| (0x25, 0x26, "Temp Ptr to string in string space"), | |
| (0x27, 0x28, "Top of Ram available to BASIC - returned by DOS HIMEM ($7ffe)"), | |
| (0x29, 0x2a, "Last/CONT line number"), | |
| (0x2b, 0x2c, "Temp/Input line number store"), | |
| (0x2d, 0x2e, "Ptr to next statement to be executed"), | |
| (0x2f, 0x30, "Direct mode command text pointer"), | |
| (0x31, 0x32, "Current DATA statement line number"), | |
| (0x33, 0x34, "Ptr to next item in current DATA statement"), | |
| (0x35, 0x36, "Ptr to keyboard input buffer"), | |
| (0x37, 0x38, "Ptr to variable last in use"), | |
| (0x37, 0x38, "ASCII codes of last variable used {1}"), | |
| (0x39, 0x3a, "VARPTR address of last variable used"), | |
| (0x3b, 0x4e, "Evaluation variables"), | |
| (0x41, 0x42, "High end destination addr for block"), | |
| (0x43, 0x44, "High end origin addr"), | |
| (0x45, 0x46, "Low end destination addr for block"), | |
| (0x47, 0x48, "Low end origin addr"), | |
| (0x4f, 0x54, "Floating Point Accumulator Num 1"), | |
| (0x4f, 0x4f, "Exponent"), | |
| (0x50, 0x53, "Mantissa"), | |
| (0x50, 0x51, "16 bit values in FAC stored here"), | |
| (0x52, 0x53, "VARPTR of variables is stored here {1}"), | |
| (0x54, 0x54, "Mantissa Sign (0x00 positive, 0xff negative)"), | |
| (0x55, 0x55, "Temp sign of FAC"), | |
| (0x56, 0x56, "String variable length"), | |
| (0x57, 0x5b, "String Descriptor temporaries"), | |
| (0x5c, 0x61, "Floating Point Accumulator Num 2"), | |
| (0x62, 0x62, "Sign comparison"), | |
| (0x62, 0x67, "Misc use"), | |
| (0x63, 0x63, "CoCo - Extended precision byte {1} - also Dragon ?"), | |
| (0x68, 0x69, "Current Line number (0xffff in direct mode)"), | |
| (0x6a, 0x6e, "Device Params used in PRINT"), | |
| (0x6a, 0x6a, "Device Comma field width (VDU - 0x10)"), | |
| (0x6b, 0x6b, "Device Last comma field"), | |
| (0x6c, 0x6c, "Device Current column num (VDU - 0x00-0x1f)"), | |
| (0x6d, 0x6d, "Device Line width - num chars per line (VDU 0x20)"), | |
| (0x6e, 0x6e, "Cassette I/O in progress flag - 0xff on input or output occurring {9}"), | |
| (0x6f, 0x6f, "%DEVNUM% Current device number 0x00 VDU screen 0x01-0x04 DOS - DosPlus only - drive number. 0xfd serial port (Dragon 64 only) 0xfe printer 0xff tape"), | |
| (0x70, 0x70, "Cassette EOF flag - non-zero if EOF - used by EOF(-1) {9}"), | |
| (0x71, 0x71, "Restart flag - if not 0x55 cold start on reset, see $0072"), | |
| (0x72, 0x73, "Restart vector - Following a reset if $0072 pts to a NOP opcode and $0071 is 0x55 then a warm start is performed to this vector else a cold start. (0xb44f) (DOS SuperDosE6 $c706)"), | |
| (0x74, 0x75, "Physical end of Ram minus 1 (0x7ffe)"), | |
| (0x76, 0x77, "Unused"), | |
| (0x78, 0x78, "Cassette status 0x00 closed 0x01 input 0x02 output"), | |
| (0x79, 0x79, "Cassette I/O - Buffer size - bytes in block"), | |
| (0x7a, 0x7b, "Header buffer addr - ptr to filename block"), | |
| (0x7c, 0x7c, "%BLKTYP% Cassette block type 0x00 filename 0x01 data 0xff EOF block"), | |
| (0x7d, 0x7d, "%DBLEN% Cassette block length, number bytes read/to write"), | |
| (0x7e, 0x7f, "%DBADR% Cassette I/O Buffer address Contains 1 + End address of last program loaded"), | |
| (0x80, 0x80, "Cassette I/O - block checksum used internally"), | |
| (0x81, 0x81, "Cassette I/O - error code 0x00 none 0x01 CRC (checksum) error 0x02 attempt to load into ROM"), | |
| (0x82, 0x82, "Cassette I/O - Pulse width counter"), | |
| (0x83, 0x83, "Cassette I/O - Sync bits counter"), | |
| (0x84, 0x84, "Cassette I/O - Bit phase flag"), | |
| (0x85, 0x85, "Last sine wave value for output to DAC"), | |
| (0x86, 0x86, "Data for low res SET/RESET, POINT routines"), | |
| (0x87, 0x87, "ASCII code of last key pressed (cleared by Break check)"), | |
| (0x88, 0x89, "Current VDU cursor addr (typ 0x0400-0x05ff)"), | |
| (0x8a, 0x8b, "Gen purpose 16bit scratch pad / 16bit zero (0x0000) {2}"), | |
| (0x8a, 0x8b, "CoCo - Motor on delay"), | |
| (0x8c, 0x8c, "Sound pitch frequency"), | |
| (0x8d, 0x8e, "Gen purpose countdown (?sound timer {2})"), | |
| (0x8f, 0x8f, "Cursor flash counter (0x20)"), | |
| (0x90, 0x91, "Cassette leader byte count - number of 0x55 bytes written as sync leader (D32 - 0x0080, D64 - 0x0100)"), | |
| (0x92, 0x92, "Minimum cycle width of 1200Hz (0x12)"), | |
| (0x92, 0x93, "CoCo - Cassette leader byte count"), | |
| (0x93, 0x93, "Minimum pulse width of 1200Hz (0x0a)"), | |
| (0x94, 0x94, "Maximum pulse width of 1200Hz (0x12)"), | |
| (0x95, 0x96, "Motor on delay (0xda5c = approx 0.5s)"), | |
| (0x95, 0x96, "CoCo - Serial Baud rate constant (0x0057 = 600 baud)"), | |
| (0x97, 0x98, "Keyboard scan debounce delay constant (0x045e)"), | |
| (0x97, 0x98, "CoCo - Serial Line Printer End of Line delay (0x0001)"), | |
| (0x99, 0x99, "Printer comma field width (0x10 = 16)"), | |
| (0x9a, 0x9a, "Printer last comma field (0x74 = 116) (CoCo 0x70 = 112)"), | |
| (0x9b, 0x9b, "Printer line width dflt (0x84 = 132)"), | |
| (0x9c, 0x9c, "Printer head column posn == POS(-2) Updated by LPOUT ($800f) routine"), | |
| (0x9d, 0x9e, "EXEC default entry address (D32 - $8b8d = ?FC ERROR; D64 - $bf49 = Boot 64k mode)"), | |
| (0x9f, 0xaa, "%CHRGET% Self modifying routine to read next char"), | |
| (0x9f, 0xa0, "INC <$A7"), | |
| (0xa1, 0xa2, "BNE $00A5"), | |
| (0xa3, 0xa4, "INC <$A6"), | |
| (0xa5, 0xa7, "LDA >xxxx"), | |
| (0xa6, 0xa7, "Ptr to next character to read"), | |
| (0xa8, 0xaa, "JMP $BB26"), | |
| (0xab, 0xae, "Used by RND"), | |
| (0xaf, 0xaf, "TRON/TROFF trace flag - non zero for TRON"), | |
| (0xb0, 0xb1, "Ptr to start of USR table ($0134; DOS - $0683)"), | |
| (0xb2, 0xb2, "Current foreground colour (0x03)"), | |
| (0xb3, 0xb3, "Current background colour (0x00)"), | |
| (0xb4, 0xb4, "Temp/active colour in use"), | |
| (0xb5, 0xb5, "Byte value for current colour - ie bit pattern"), | |
| (0xb6, 0xb6, "Graphics PMODE number in use (0x00)"), | |
| (0xb7, 0xb8, "Ptr to last byte+1 of current graphics mode ($0c00 w/o Dos)"), | |
| (0xb9, 0xb9, "Number of bytes per line in current PMODE (0x10)"), | |
| (0xba, 0xbb, "Ptr to first byte of current graphics mode ($0600)"), | |
| (0xbc, 0xbc, "Msb of start of graphics pages (0x06 or 0x0c with Dos)"), | |
| (0xbd, 0xbe, "Current X cursor position (not user available ?{1})"), | |
| (0xbf, 0xc0, "Current Y cursor position (not user available ?{1})"), | |
| (0xc1, 0xc1, "Colour set currently in use (0x08 if colorset 1 {1})"), | |
| (0xc2, 0xc2, "Plot/Unplot flag: 0x00 reset, non zero set"), | |
| (0xc3, 0xc4, "Current horizontal pixel number"), | |
| (0xc5, 0xc6, "Current vertical pixel number"), | |
| (0xc7, 0xc8, "Current X cursor coord (0x0080)"), | |
| (0xc9, 0xca, "Current Y cursor coord (0x0060)"), | |
| (0xcb, 0xcc, "CIRCLE command X coood as if drawn in PMODE 4"), | |
| (0xcd, 0xce, "CIRCLE command Y coord as if drawn in PMODE 4"), | |
| (0xcf, 0xd0, "CIRCLE radius as if drawn in PMODE 4"), | |
| (0xcf, 0xd0, "RENUM increment value"), | |
| (0xd1, 0xd2, "RENUM start line"), | |
| (0xd3, 0xd4, "CLOADM 2's complement load offset"), | |
| (0xd5, 0xd6, "RENUM new start line"), | |
| (0xd7, 0xd7, "EDIT line length (not user available)"), | |
| (0xd7, 0xd7, "PLAY -"), | |
| (0xd8, 0xd8, "PLAY - bytes left in string"), | |
| (0xd9, 0xda, "PLAY - ptr to current char in string"), | |
| (0xd8, 0xdd, "Graphics use ? {2}"), | |
| (0xde, 0xde, "PLAY: Current octave in use (0-4) (0x02)"), | |
| (0xdf, 0xe0, "PLAY: Volume data for volume setting (D32 - 0xba42) (D64 - 0xb844)"), | |
| (0xe1, 0xe1, "PLAY: Current note length (0x04)"), | |
| (0xe2, 0xe2, "PLAY: Current tempo (0x02)"), | |
| (0xe3, 0xe4, "PLAY: Music duration count"), | |
| (0xe5, 0xe5, "PLAY: Music dotted note flag"), | |
| (0xe6, 0xff, "D32 - Unused in Dragon 32 w/o DOS"), | |
| (0xe6, 0xe6, "CoCo - baud rate constant"), | |
| (0xe7, 0xe7, "Coco - Input timeout constant"), | |
| (0xe8, 0xe8, "Current angle used in DRAW {1} (??)"), | |
| (0xe9, 0xe9, "Current scale used in DRAW {1} (??)"), | |
| (0xea, 0xf6, "DOS - Used by DragonDos"), | |
| (0xf8, 0xf8, "DOS - sector currently seeking {SuperDos Rom}"), | |
| (0x100, 0x102, "SWI3 Secondary vector (Uninitialised)"), | |
| (0x103, 0x105, "SWI2 Secondary vector (Uninitialised)"), | |
| (0x106, 0x108, "SWI Secondary vector (Uninitialised)"), | |
| (0x109, 0x10b, "NMI Secondary vector (Uninitialised) (CoCo DOS JMP $d7ae; SuperDos E6 JMP $c71e)"), | |
| (0x10c, 0x10e, "IRQ Secondary vector - JMP $9d3d (CoCo JMP $a9b3 or $894c (extended); CoCo DOS JMP $d7bc; SuperDos E6 JMP $c727)"), | |
| (0x10f, 0x111, "FIRQ Secondary vector - JMP $b469 (CoCo JMP $a0f6; SuperDos E6 JMP $c7da)"), | |
| (0x112, 0x113, "TIMER value"), | |
| (0x114, 0x114, "Unused"), | |
| (0x115, 0x119, "Random number seeds (0x80, 0x4f, 0xc7, 0x52, 0x59)"), | |
| (0x11a, 0x11f, "D32 - Unused"), | |
| (0x11a, 0x11a, "D64 - %FLAG64% checked on Reset from 64K mode if 0x55 then checksum at $011b is checked against current contents of Ram, if the same then a warm start is performed (64 mode) else a cold start (32 mode)"), | |
| (0x11a, 0x11a, "CoCo - Caps lock, 0x00 lower, non-0x00 upper"), | |
| (0x11b, 0x11c, "D64 - %CSUM64% 16bit sum of words of BASIC Rom-in-ram in 64K mode from $c000 to $feff"), | |
| (0x11b, 0x11c, "CoCo - Keyboard Delay constant"), | |
| (0x11d, 0x11f, "CoCo - JMP $8489 ? {1}"), | |
| (0x11d, 0x11d, "D64 - %LSTKEY% Last key code return by keybd poll routine"), | |
| (0x11e, 0x11e, "D64 - %CNTDWN% Auto repeat countdown"), | |
| (0x11f, 0x11f, "D64 - %REPDLY% Auto repeat inter-repeat delay value (0x05)"), | |
| (0x120, 0x120, "%STUB0% Stub 0 - Number of reserved words (0x4e)"), | |
| (0x121, 0x122, "Stub 0 - Ptr to reserved words table ($8033)"), | |
| (0x123, 0x124, "Stub 0 - Ptr to reserved words dispatch table ($8154)"), | |
| (0x125, 0x125, "Stub 0 - Number of functions (0x22)"), | |
| (0x126, 0x127, "Stub 0 - Ptr to reserved function words table ($81ca)"), | |
| (0x128, 0x129, "Stub 0 - Ptr to function words dispatch table ($8250)"), | |
| (0x12a, 0x12a, "%STUB1% Stub 1 - Number of reserved words (0x00) (DOS 0x1a)"), | |
| (0x12b, 0x12c, "Stub 1 - Ptr to reserved words table (0x0000) (DOS $ded4; SuperDosE6 $deda)"), | |
| (0x12d, 0x12e, "Stub 1 - Ptr to reserved words token processing routine ($89b4; DOS $c64c; SuperDosE6 $c670)"), | |
| (0x12f, 0x12f, "Stub 1 - Number of functions (0x00) (DOS 0x07)"), | |
| (0x130, 0x131, "Stub 1 - Ptr to function table (0x0000) (DOS $debb; SuperDosE6 $dec1)"), | |
| (0x132, 0x133, "Stub 1 - Ptr to function token processing routine ($89b4; DOS $c667; SuperDosE6 $c68b)"), | |
| (0x134, 0x134, "%STUB2% Stub 2 - acts as a stub terminator under DOS"), | |
| (0x134, 0x147, "USR address table, relocated by DOS (10 x 2 bytes) ($8b8d)"), | |
| (0x148, 0x148, "Auto line feed flag on buffer full - setting this to 0x00 causes a EOL sequence to be sent to printer when buffer reaches length in $009b (0xff)"), | |
| (0x149, 0x149, "Alpha Lock flag - 0x00 Lower case, 0xff Upper case (0xff)"), | |
| (0x14a, 0x150, "Line Printer End of line termination sequence"), | |
| (0x14a, 0x14a, "Number of bytes in EOL sequence 1-6 (0x01)"), | |
| (0x14b, 0x14b, "EOL chr 1 (0x0d CR)"), | |
| (0x14c, 0x14c, "EOL chr 2 (0x0a LF)"), | |
| (0x14d, 0x14d, "EOL chr 3 (D64 - 0x00; D32 - 0x20 ' ')"), | |
| (0x14e, 0x14e, "EOL chr 4 (D64 - 0x00; D32 - 0x44 'D' Duncan)"), | |
| (0x14f, 0x14f, "EOL chr 5 (D64 - 0x00; D32 - 0x4e 'N' N.)"), | |
| (0x150, 0x150, "EOL chr 6 (D64 - 0x00; D32 - 0x4f 'S' Smeed)"), | |
| (0x151, 0x159, "Keyboard matrix state table"), | |
| (0x152, 0x159, "CoCo - Keyboard roll-over table"), | |
| (0x15a, 0x15d, "%POTVAL% Joystick values (0-63)"), | |
| (0x15a, 0x15a, "Right Joystick, x value == JOYSTK(0)"), | |
| (0x15b, 0x15b, "Right Joystick, y value == JOYSTK(1)"), | |
| (0x15c, 0x15c, "Left Joystick, x value == JOYSTK(2)"), | |
| (0x15d, 0x15d, "Left Joystick, y value == JOYSTK(3)"), | |
| (0x15e, 0x1a8, "Ram hooks - each is called from ROM with a JSR before carrying out the specified function"), | |
| (0x15e, 0x160, "Device Open (DOS JMP $d902; SuperDosE6 $d8f4)"), | |
| (0x161, 0x163, "Verify Device Number (DOS SuperDosE6 JMP $d8ec)"), | |
| (0x164, 0x166, "Device Init (DOS SuperDosE6 JMP $c29c)"), | |
| (0x167, 0x169, "Output char in A to DEVN (DOS JMP $d8fa; SuperDosE6 $d90b)"), | |
| (0x167, 0x167, "Setting to 0xff disables keyboard ?!? {1} Setting to 0x39 (RTS) allows use of SCREEN 0,1 etc. ??{1}"), | |
| (0x16a, 0x16c, "Input char from DEVN to A (DOS SuperDosE6 JMP $c29c)"), | |
| (0x16d, 0x16f, "Input from DEVN using INPUT (DOS SuperDosE6 JMP $c29c)"), | |
| (0x170, 0x172, "Output to DEVN using PRINT (DOS SuperDosE6 JMP $c29c)"), | |
| (0x173, 0x175, "Close all files (DOS SuperDosE6 JMP $c29c)"), | |
| (0x176, 0x178, "Close file (DOS JMP $d917; SuperDosE6 $d6f5)"), | |
| (0x179, 0x17b, "Command Interpreter - interpret token in A as command (DOS SuperDosE6 JMP $c29c)"), | |
| (0x17c, 0x17e, "Re-request input from keyboard (DOS JMP $d960; SuperDosE6 $d954)"), | |
| (0x17f, 0x181, "Check keys - scan for BREAK, SHIFT+'@' (DOS SuperDosE6 JMP $c29c)"), | |
| (0x17f, 0x17f, "Setting this to 0x9e disables LIST/DIR {1}"), | |
| (0x182, 0x184, "Line input from DEVN using LINE INPUT (DOS JMP $d720; SuperDosE6 $dac5)"), | |
| (0x185, 0x187, "Close BASIC file read in and goto Command mode (DOS SuperDosE6 JMP $c29c)"), | |
| (0x188, 0x18a, "Check EOF on DEVN (DOS JMP $dd4d; SuperDosE6 $dd54)"), | |
| (0x18b, 0x18d, "Evaluate expression (DOS SuperDosE6 JMP $c29c)"), | |
| (0x18e, 0x190, "User error trap, called from $8344 (DOS SuperDosE6 JMP $c29c)"), | |
| (0x191, 0x193, "System error trap, called from $8344 (DOS JMP $c69e; SuperDosE6 $c6c5)"), | |
| (0x194, 0x196, "Run Link - used by DOS to RUN filename (DOS JMP $d490; SuperDosE6 $d4b7)"), | |
| (0x197, 0x199, "Reset Basic Memory, editing or entering BASIC lines"), | |
| (0x19a, 0x19c, "Get next command - reading in next command to be executed"), | |
| (0x19d, 0x19f, "Assign string variable"), | |
| (0x1a0, 0x1a2, "Screen access - CLS, GET, PUT"), | |
| (0x1a3, 0x1a5, "Tokenise line"), | |
| (0x1a6, 0x1a8, "De-Tokenise line"), | |
| (0x1a9, 0x1d0, "String buffer area"), | |
| (0x1d1, 0x1d1, "Cassette filename length in range 0-8"), | |
| (0x1d2, 0x1d9, "Cassette filename to search for or write out"), | |
| (0x1da, 0x2d8, "Cassette I/O default data buffer - 255 bytes"), | |
| (0x1da, 0x268, "D64 - 64K mode bootstrap routine is copied here to run"), | |
| (0x1da, 0x1e1, "Cassette buffer - filename of file read"), | |
| (0x1e2, 0x1e2, "Cassette buffer - filetype 0x00 BASIC program 0x01 Data 0x02 Machine code"), | |
| (0x1e3, 0x1e3, "Cassette buffer - ASCII flag 0x00 Binary 0xff ASCII flag"), | |
| (0x1e4, 0x1e4, "Cassette buffer - gap flag 0x00 Continous 0xff Gapped file"), | |
| (0x1e5, 0x1e6, "Cassette buffer - Entry (Exec) addr of m/c file"), | |
| (0x1e7, 0x1e8, "Cassette buffer - Load address for ungapped m/c file"), | |
| (0x2d9, 0x2dc, "BASIC line input buffer preamble"), | |
| (0x2dd, 0x3d8, "BASIC line input buffer - used for de-/tokenising data"), | |
| (0x2dd, 0x3dc, "CoCo - 255 byte keyboard buffer {1}"), | |
| (0x2e1, 0x33b, "CoCo - 90 byte screen buffer {1}"), | |
| (0x3d9, 0x3ea, "Buffer space"), | |
| (0x3eb, 0x3fc, "Unused"), | |
| (0x3fd, 0x3ff, "D32 - Unused in Dragon 32"), | |
| (0x3fd, 0x3fe, "D64 - Printer end of line delay in milliseconds (0x0000)"), | |
| (0x3ff, 0x3ff, "D64 - %PRNSEL% selects default printer port 0x00 Parallel, non-0x00 Serial (0x00)"), | |
| (0x400, 0x5ff, "Default Text screen"), | |
| (0x600, 0x1dff, "Available graphics pages w/o DOS"), | |
| (0x600, 0xbff, "DOS - workspace area see also $00ea-$00f6"), | |
| (0x600, 0xdff, "CoCo DOS workspace area (no more info)"), | |
| (0xc00, 0x23ff, "DOS - Available graphics pages"), | |
| (0x8000, 0xbfff, "BASIC ROM in 32K mode"), | |
| (0x8000, 0x9fff, "CoCo - Extended Color BASIC ROM"), | |
| (0xa000, 0xbfff, "CoCo - Color BASIC ROM"), | |
| (0xbff0, 0xbfff, "These addresses mapped from ROM to $fff0-$ffff by the SAM"), | |
| (0xc000, 0xdfff, "DOS - Dos ROM"), | |
| (0xc000, 0xfeff, "DOS - Cumana DOS ROM only"), | |
| (0xc000, 0xfeff, "Available address range to cartridge expansion port 32K mode"), | |
| (0xc000, 0xfeff, "D64 - 64K mode - copy of BASIC ROM 2 exists in RAM here"), | |
| (0xff00, 0xff00, "PIA 0 A side Data reg. PA7 i/p Comparator input PA6 i/p Keyboard Matrix Ent Clr Brk N/c N/c N/c N/c Shift PA5 i/p Keyboard Matrix X Y Z Up Dwn Lft Rgt Space i/p CoCo - Keyboard 8 9 : ; , - . / PA4 i/p Keyboard Matrix P Q R S T U V W i/p CoCo - Keyboard 0 1 2 3 4 5 6 7 PA3 i/p Keyboard Matrix H I J K L M N O i/p CoCo - Keyboard X Y Z Up Dwn Lft Rgt Space PA2 i/p Keyboard Matrix @ A B C D E F G i/p CoCo - Keyboard P Q R S T U V W PA1 i/p Keyboard Matrix 8 9 : ; , - . / i/p CoCo - Keyboard H I J K L M N O i/p Left Joystick Button PA0 i/p Keyboard Matrix 0 1 2 3 4 5 6 7 i/p CoCo - Keyboard @ A B C D E F G i/p Right Joystick Button"), | |
| (0xff01, 0xff01, "PIA 0 A side Control reg. CA1 i/p Horiz Sync Interrupt from VDG (15625Hz; CoCo 15750Hz) CA2 o/p Analogue Mux channel select line A Selects Joystick Axis (0 x-axis, 1 y-axis)"), | |
| (0xff02, 0xff02, "PIA 0 B side Data reg. PB7 o/p Keyboard Matrix 7 / G O W Space Shift o/p Printer Out bit 7 PB6 o/p Keyboard Matrix 6 . F N V Right N/c o/p Printer Out bit 6 PB5 o/p Keyboard Matrix 5 - E M U Left N/c o/p Printer Out bit 5 PB4 o/p Keyboard Matrix 4 , D L T Down N/c o/p Printer Out bit 4 PB3 o/p Keyboard Matrix 3 ; C K S Up N/c o/p Printer Out bit 3 PB2 o/p Keyboard Matrix 2 : B J R Z Break o/p Printer Out bit 2 PB1 o/p Keyboard Matrix 1 9 A I Q Y Clear o/p Printer Out bit 1 PB0 o/p Keyboard Matrix 0 8 @ H P X Enter o/p Printer Out bit 0"), | |
| (0xff03, 0xff03, "PIA 0 B side Control reg. CB1 i/p Field Sync Interrupt from VDG (50Hz; CoCo 60Hz) CB2 o/p Analogue Mux channel select line B Selects Joystick (0 right, 1 left)"), | |
| (0xff04, 0xff04, "D64 - ACIA serial port read/write data reg."), | |
| (0xff05, 0xff05, "D64 - ACIA serial port status (R)/ reset (W) reg."), | |
| (0xff06, 0xff06, "D64 - ACIA serial port command reg."), | |
| (0xff07, 0xff07, "D64 - ACIA serial port control reg."), | |
| (0xff20, 0xff20, "PIA 1 A side Data reg. PA7 o/p DAC bit 5 PA6 o/p DAC bit 4 PA5 o/p DAC bit 3 PA4 o/p DAC bit 2 PA3 o/p DAC bit 1 PA2 o/p DAC bit 0 PA1 o/p Printer Strobe - Active High (i.e. Lo-Hi-Lo to print) o/p CoCo - RS232 Tx o/p PA0 i/p Cassette waveform single bit input"), | |
| (0xff21, 0xff21, "PIA 1 A side Control reg. CA1 i/p Printer Acknowledge i/p CoCo - CD RS232 Carrier Detect input CA2 o/p Cassette Relay Motor control"), | |
| (0xff22, 0xff22, "PIA 1 B side Data reg. PB7 o/p *A/G VDG control line PB6 o/p GM2 VDG control line PB5 o/p GM1 VDG control line PB4 o/p GM0 or *INT/EXT VDG control line PB3 o/p CSS VDG control line PB2 i/p D32 - RAM size (0 8 x 32K bit; 1 16 x 16K bit) {6} o/p D64 - ROM select (1 32K mode; 0 64K mode) PB1 i/p Sample audio source o/p Single bit sound output PB0 i/p Printer Busy - Active High i/p CoCo - RS232 Rx input"), | |
| (0xff23, 0xff23, "PIA 1 B side Control reg. CB1 i/p Cartridge CART FIRQ auto-start signal CB2 o/p Sound Mux enable (1 enable, 0 single bit sound)"), | |
| (0xff40, 0xff40, "DOS - Disk Controller command/status reg."), | |
| (0xff41, 0xff41, "DOS - Disk Controller track reg."), | |
| (0xff42, 0xff42, "DOS - Disk Controller sector reg."), | |
| (0xff43, 0xff43, "DOS - Disk Controller data reg."), | |
| (0xff48, 0xff48, "DOS - Disk Controller hardware control reg."), | |
| (0xffc0, 0xffdf, "SAM (Synchronous Address Multiplexer) register bits - use even address to clear, odd address to set"), | |
| (0xffc0, 0xffc5, "SAM VDG Mode registers V0-V2"), | |
| (0xffc0, 0xffc1, "SAM VDG Reg V0"), | |
| (0xffc2, 0xffc3, "SAM VDG Reg V1"), | |
| (0xffc3, 0xffc5, "SAM VDG Reg V2"), | |
| (0xffc6, 0xffd3, "SAM Display offset in 512 byte pages F0-F6"), | |
| (0xffc6, 0xffc7, "SAM Display Offset bit F0"), | |
| (0xffc8, 0xffc9, "SAM Display Offset bit F1"), | |
| (0xffca, 0xffcb, "SAM Display Offset bit F2"), | |
| (0xffcc, 0xffcd, "SAM Display Offset bit F3"), | |
| (0xffce, 0xffcf, "SAM Display Offset bit F4"), | |
| (0xffd0, 0xffc1, "SAM Display Offset bit F5"), | |
| (0xffd2, 0xffc3, "SAM Display Offset bit F6"), | |
| (0xffd4, 0xffd5, "SAM Page #1 bit - in D64 maps upper 32K Ram to $0000 to $7fff"), | |
| (0xffd6, 0xffd9, "SAM MPU Rate R0-R1"), | |
| (0xffd6, 0xffd7, "SAM MPU Rate bit R0"), | |
| (0xffd8, 0xffd9, "SAM MPU Rate bit R1"), | |
| (0xffda, 0xffdd, "SAM Memory Size select M0-M1"), | |
| (0xffda, 0xffdb, "SAM Memory Size select bit M0"), | |
| (0xffdc, 0xffdd, "SAM Memory Size select bit M1"), | |
| (0xffde, 0xffdf, "SAM Map Type - in D64 switches in upper 32K RAM $8000-$feff"), | |
| (0xffec, 0xffef, "PC-Dragon - Used by Paul Burgin's emulator to provide enhanced services"), | |
| (0xfff0, 0xffff, "6809 interrupt vectors mapped from $bff0-$bfff by SAM"), | |
| (0xfff0, 0xfff1, "Reserved ($0000; D64 64K mode 0x3634 '64')"), | |
| (0xfff2, 0xfff3, "SWI3 ($0100)"), | |
| (0xfff4, 0xfff5, "SWI2 ($0103)"), | |
| (0xfff6, 0xfff7, "FIRQ ($010f)"), | |
| (0xfff8, 0xfff9, "IRQ ($010c)"), | |
| (0xfffa, 0xfffb, "SWI ($0106)"), | |
| (0xfffc, 0xfffd, "NMI ($0109)"), | |
| (0xfffe, 0xffff, "RESET ($b3b4; D64 64K mode $c000 - never accessed)"), | |
| (0x8000, 0x8002, "Hardware Initialisation (JMP $bb40; D64 JMP $bb3c)"), | |
| (0x8003, 0x8005, "Software Initialisation (JMP $bb88)"), | |
| (0x8006, 0x8008, "%POLCAT% Scans keyboard, rets value in A (JMP $bbe5) Called indirectly from [$a000]"), | |
| (0x8009, 0x800b, "%CBLINK% Cursor Blink (JMP $bbb5)"), | |
| (0x800c, 0x800e, "%CHROUT% Write chr in A to screen (JMP $bcab)"), | |
| (0x800f, 0x8011, "%LPOUT% Line printer character output in A reg., forces end-of-line sequences, outputs extra spaces to cause LFs etc. See: $0099-009c, $0148 (JMP $bd1a)"), | |
| (0x8012, 0x8014, "Reads Joystick (JMP $bd52) Called indirectly from [$a00a]"), | |
| (0x8015, 0x8017, "Cassette relay on (JMP $bdcf)"), | |
| (0x8018, 0x801a, "Cassette relay off (JMP $bddc)"), | |
| (0x801b, 0x801d, "Write leader to cassette (JMP $be68) Called indirectly from [$a00c]"), | |
| (0x801e, 0x8020, "Output byte in A to cassette (JMP $be12)"), | |
| (0x8021, 0x8023, "Cassette on, init for reading (JMP $bde7) Called indirectly from [$a004]"), | |
| (0x8024, 0x8026, "Input byte from cassette into A (JMP $bdad)"), | |
| (0x8027, 0x8029, "Get one bit from cassette to CC.C (JMP $bda5)"), | |
| (0x802a, 0x802c, "Reads a byte from serial port (JMP $be7b)"), | |
| (0x802d, 0x802f, "Sends a byte to serial port (D32 JMP $be7c; D64 JMP $be98)"), | |
| (0x8030, 0x8032, "Set serial port baud rate (D32 JMP $be7d; D64 JMP $bea6)"), | |
| (0x8033, 0x8153, "Reserved words table"), | |
| (0x8154, 0x81c9, "Reserved words dispatch table (Tokens 0x80-0xba only)"), | |
| (0x81ca, 0x824f, "Function words table"), | |
| (0x8250, 0x8293, "Function words dispatch table"), | |
| (0x8294, 0x82a8, "Another dispatch table: 0x79, $910e + 0x79, $9105 - 0x7b, $9275 * 0x7b, $933c / 0x7f, $96a0 ^ 0x50, $8a12 AND 0x46, $8a11 OR The related functions come from {2, p.347}"), | |
| (0x82a9, 0x82de, "Error code table"), | |
| (0x82df, 0x82e5, "' ERROR', 0x00"), | |
| (0x82e6, 0x82ea, "' IN ', 0x00"), | |
| (0x82eb, 0x82ef, "0x0d, 'OK', 0x0d, 0x00"), | |
| (0x82f0, 0x82f6, "0x0d, 'BREAK', 0x00"), | |
| (0x8344, 0x8344, "System Error - generates error message according to B (CoCo $ac46)"), | |
| (0x8371, 0x8371, "Prints OK prompt and returns to Command mode (CoCo $ac73)"), | |
| (0x83ed, 0x83ed, "BasVect2 - completes init once BASIC program loaded (CoCo $acef)"), | |
| (0x8415, 0x8415, "NEW token dispatch address"), | |
| (0x8417, 0x8417, "Erases program in memory same as NEW (CoCo $ad19) {1} Called from BASIC init routine ($b3ba)"), | |
| (0x841f, 0x841f, "BasVect1 - sets up various vectors after a BASIC program loaded (CoCo $ad21)"), | |
| (0x8434, 0x8434, "Resets stack - all entries are lost (CoCo $ad33)"), | |
| (0x8448, 0x8448, "FOR token dispatch address"), | |
| (0x849f, 0x849f, "RUN BASIC - runs BASIC program in mem used by Autorun programs (CoCo $ad9e)"), | |
| (0x8514, 0x8514, "RESTORE token dispatch address"), | |
| (0x852b, 0x852b, "Waits for key press, returns key in A (CoCo $adfb)"), | |
| (0x8532, 0x8532, "END token dispatch address"), | |
| (0x8539, 0x8539, "STOP token dispatch address"), | |
| (0x8560, 0x8560, "CONT token dispatch address"), | |
| (0x8571, 0x8571, "CLEAR token dispatch address"), | |
| (0x85a5, 0x85a5, "RUN token dispatch address"), | |
| (0x85b9, 0x85b9, "GO token dispatch address"), | |
| (0x85f3, 0x85f3, "RETURN token dispatch address"), | |
| (0x8613, 0x8613, "DATA token dispatch address"), | |
| (0x8616, 0x8616, "REM, ', ELSE token dispatch address"), | |
| (0x8647, 0x8647, "IF token dispatch address"), | |
| (0x8675, 0x8675, "ON token dispatch address"), | |
| (0x86bc, 0x86bc, "LET token dispatch address"), | |
| (0x8705, 0x870b, "'?REDO', 0x0d, 0x00"), | |
| (0x872b, 0x872b, "INPUT token dispatch address"), | |
| (0x8777, 0x8777, "READ token dispatch address"), | |
| (0x8829, 0x8829, "NEXT token dispatch address"), | |
| (0x8877, 0x8877, "Get expression: evaluates next expression and puts VARPTR addr in $0052:0053 (CoCo $b146)"), | |
| (0x8887, 0x8887, "Get string: compiles a string and puts it in free string space (CoCo $b156)"), | |
| (0x89a4, 0x89a4, "CkClBrak: checks cmd line for closed bracket (CoCo $b267)"), | |
| (0x89a7, 0x89a7, "CkOpBrak: checks cmd line for open bracket (CoCo $b26a)"), | |
| (0x89aa, 0x89aa, "CkComa: checks next cmd line chr for a comma, if not a Syntax error is generated (CoCo $b26d)"), | |
| (0x89ac, 0x89ac, "CkChar: as for CkComa but checks for chr in B (CoCo $b26f)"), | |
| (0x89b4, 0x89b4, "Both reserved word and function dispatch tables of Stub 1 at $012a point here"), | |
| (0x8a11, 0x8a11, "OR operator dispatch address (see $8294)"), | |
| (0x8a12, 0x8a12, "AND operator dispatch address (see $8294)"), | |
| (0x8a8b, 0x8a8b, "DIM token dispatch address"), | |
| (0x8a94, 0x8a94, "%GETVAR% gets VARPTR addr of following variables name (CoCo $b357)"), | |
| (0x8b29, 0x8b29, "%GETUSR% returns value of arg in USR fn in D (CoCo $b3e9)"), | |
| (0x8b2d, 0x8b2d, "%INTCNV%"), | |
| (0x8b30, 0x8b30, "Passes parameters to machine code routine {1}"), | |
| (0x8b39, 0x8b39, "Used to pass back values from m/c to BASIC {1}"), | |
| (0x8b8d, 0x8b91, "Jump to this causes ?FC ERROR"), | |
| (0x8c31, 0x8c31, "MEM function token dispatch address"), | |
| (0x8c35, 0x8c3f, "Assign16Bit: assigns D to numeric variable (CoCo $b4f2) ?? 8c35:8c36 is a BRN"), | |
| (0x8c36, 0x8c3f, "Assign8Bit: assigns B to numeric variable (CoCo $b4f3) clears A, stores D in FAC"), | |
| (0x8c37, 0x8c3f, "%GIVABF% returns D as 16bit val in FAC"), | |
| (0x8c40, 0x8c40, "STR$ function token dispatch address"), | |
| (0x8cd7, 0x8cd7, "Forces String space Garbage collection (CoCo $b591)"), | |
| (0x8d9a, 0x8d9a, "Sub -"), | |
| (0x8d9f, 0x8d9f, "%DELVAR% frees space taken by variable (CoCo $b659)"), | |
| (0x8dc7, 0x8dc7, "LEN function token dispatch address"), | |
| (0x8dd2, 0x8dd2, "CHR$ function token dispatch address"), | |
| (0x8de6, 0x8de6, "ASC function token dispatch address"), | |
| (0x8df1, 0x8df1, "LEFT$ function token dispatch address"), | |
| (0x8e0e, 0x8e0e, "RIGHT$ function token dispatch address"), | |
| (0x8e15, 0x8e15, "MID$ function token dispatch address"), | |
| (0x8e51, 0x8e51, "Get8Bit: returns value of following number in B (CoCo $b70b)"), | |
| (0x8e5c, 0x8e5c, "VAL function token dispatch address"), | |
| (0x8e83, 0x8e83, "Get16Bit: returns value of following number in X (CoCo $b73d)"), | |
| (0x8e96, 0x8e96, "PEEK function token dispatch address"), | |
| (0x8e9d, 0x8e9d, "POKE token dispatch address"), | |
| (0x8ea4, 0x8ea4, "LLIST token dispatch address"), | |
| (0x8eaa, 0x8eaa, "LIST token dispatch address, List Basic to DEVN (CoCo $b764)"), | |
| (0x903d, 0x903d, "PRINT token dispatch address"), | |
| (0x90a1, 0x90a1, "Print CR/LF: moves cursor posn to start of new line (CoCo $b958)"), | |
| (0x90e5, 0x90e5, "Out String: Prints ASCIIZ string ptd to by X to DEVN (CoCo $b99c)"), | |
| (0x9105, 0x9105, "- operator dispatch address (see $8294)"), | |
| (0x910e, 0x910e, "+ operator dispatch address (see $8294)"), | |
| (0x923c, 0x923c, "LOG function token dispatch address"), | |
| (0x9275, 0x9275, "* operator dispatch address (see $8294)"), | |
| (0x933c, 0x933c, "/ operator dispatch address (see $8294)"), | |
| (0x93bf, 0x93d4, "%MOVFM% Converts a 5-byte BASIC Real variable structure pointed to by X to FAC at $004f {2}"), | |
| (0x9425, 0x9425, "SGN function token dispatch address"), | |
| (0x942d, 0x942d, "Jumped to from GIVABF routine at 8c37-8c3f - returns 16 bit value in FAC to BASIC ??"), | |
| (0x943e, 0x943e, "ABS function token dispatch address"), | |
| (0x9499, 0x9499, "INT function token dispatch address"), | |
| (0x9564, 0x9568, "5 byte floating point number"), | |
| (0x9569, 0x956d, "5 byte floating point number"), | |
| (0x956e, 0x9572, "5 byte floating point number"), | |
| (0x957a, 0x957a, "Print Number: outputs D as number to DEVN (CoCo $bdcc)"), | |
| (0x9697, 0x9697, "SQR function token dispatch address"), | |
| (0x96a0, 0x96a0, "^ operator dispatch address (see $8294)"), | |
| (0x9713, 0x9713, "EXP function token dispatch address"), | |
| (0x9772, 0x9772, "RND function token dispatch address"), | |
| (0x978e, 0x978e, "Random Number: generates 8bit random number in $0116"), | |
| (0x97cb, 0x97cb, "COS function token dispatch address"), | |
| (0x97d1, 0x97d1, "SIN function token dispatch address"), | |
| (0x9816, 0x9816, "TAN function token dispatch address"), | |
| (0x9877, 0x9877, "ATN function token dispatch address"), | |
| (0x98e3, 0x98e3, "Called from BASIC init routine ($b3ba-)"), | |
| (0x9956, 0x9956, "FIX function token dispatch address"), | |
| (0x9965, 0x9965, "EDIT token dispatch address"), | |
| (0x9ad9, 0x9ad9, "TRON token dispatch address"), | |
| (0x9ada, 0x9ada, "TROFF token dispatch address"), | |
| (0x9ade, 0x9ade, "POS function token dispatch address"), | |
| (0x9af4, 0x9af4, "VARPTR function token dispatch address"), | |
| (0x9b84, 0x9b84, "STRING$ function token dispatch address"), | |
| (0x9bb4, 0x9bb4, "INSTR function token dispatch address"), | |
| (0x9c3e, 0x9c3e, "Assign16BitB: assigns value in $0052:0053 to a variable (CoCo $880e)"), | |
| (0x9c81, 0x9c81, "DEF token dispatch address"), | |
| (0x9d00, 0x9d0c, "Sub"), | |
| (0x9d0d, 0x9d1c, "Sub which returns a ptr in X to the address in the USR table (ref'd by $00b0:00b1) of the USR function to be called"), | |
| (0x9d1d, 0x9d1d, "USR function token dispatch address"), | |
| (0x9d35, 0x9d3c, "Sub which checks for '=' token, then gets value of next expression by JMPing to $8e83"), | |
| (0x9d3d, 0x9d3d, "IRQ interrupt service routine"), | |
| (0x9d59, 0x9d59, "TIMER function token dispatch address"), | |
| (0x9d61, 0x9d61, "DEL token dispatch address"), | |
| (0x9dfa, 0x9dfa, "RENUM token dispatch address"), | |
| (0x9fca, 0x9fcd, "3 bytes Unused ? 'UL '"), | |
| (0x9fce, 0x9fff, "D32 - Unused 0x00"), | |
| (0x9fd0, 0x9fd8, "D64 - Patch to support VARPTRs >32K"), | |
| (0x9fd9, 0x9fff, "D64 - Unused 0x00"), | |
| (0xa000, 0xa00d, "Indirect jump table"), | |
| (0xa000, 0xa001, "Keyboard input ($8006)"), | |
| (0xa002, 0xa003, "Character output in A to DEVNUM ($b54a)"), | |
| (0xa004, 0xa005, "Cassette on for reading ($8021)"), | |
| (0xa006, 0xa007, "Block input from tape ($b93e)"), | |
| (0xa008, 0xa009, "Block output to tape ($b999)"), | |
| (0xa00a, 0xa00b, "Joystick input ($8012)"), | |
| (0xa00c, 0xa00d, "Write leader to cassette ($801b)"), | |
| (0xa00e, 0xa00e, "HEX$ function token dispatch address"), | |
| (0xa049, 0xa049, "DLOAD token dispatch address"), | |
| (0xa0e0, 0xa0e0, "Can be used to wait for 2 keypresses {1}"), | |
| (0xa0ea, 0xa0ea, "Waits for keypress with flashing cursor (CoCo $8cc6)"), | |
| (0xa0f4, 0xa0f4, "Sub: called from DLOAD routine"), | |
| (0xa438, 0xa440, "Sub - returns CC.C set if A is not char '0'-'9'"), | |
| (0xa6ef, 0xa6ef, "PSET token dispatch address"), | |
| (0xa6f3, 0xa6f3, "PRESET token dispatch address"), | |
| (0xa6c7, 0xa6c7, "PPOINT function token dispatch address"), | |
| (0xa749, 0xa749, "LINE token dispatch address"), | |
| (0xa8c0, 0xa8c0, "PCLS token dispatch address"), | |
| (0xa8c7, 0xa8c7, "Clear Graphics: Clears current graphics screen with data in B (CoCo $9539)"), | |
| (0xa8d4, 0xa8d4, "COLOR token dispatch address"), | |
| (0xa928, 0xa928, "Set Colours: sets up locations $00b4, $00b5 (CoCo $959a)"), | |
| (0xa938, 0xa938, "Select Display: Selects Text (CC.Z=1) or Graphics (CC.Z=0) mode (CoCo $95aa)"), | |
| (0xa93a, 0xa93a, "Reset VDU: resets default VDU mode (CoCo $95ac)"), | |
| (0xa989, 0xa989, "Set VDG Mode given in A (CoCo $95fb)"), | |
| (0xa99d, 0xa99d, "Set VDG Offset for graphics mode (CoCo $960f)"), | |
| (0xa9a4, 0xa9a4, "Set VDG Colour set from $00c1 (CoCo $9616)"), | |
| (0xa9af, 0xa9af, "PMODE token dispatch address"), | |
| (0xa9e1, 0xa9e1, "Set Page to B (CoCo $9653)"), | |
| (0xa9fe, 0xa9fe, "SCREEN token dispatch address"), | |
| (0xaa10, 0xaa10, "Select Colour set 0 or 1 from B (CoCo $9682)"), | |
| (0xaa19, 0xaa19, "PCLEAR token dispatch address"), | |
| (0xaa23, 0xaa23, "Reserve HiRes Graphics RAM, moves BASIC if nec. (CoCo $9695)"), | |
| (0xaa81, 0xaa81, "Called from BASIC init routine ($b3ba-)"), | |
| (0xaabe, 0xaabe, "PCOPY token dispatch address"), | |
| (0xaada, 0xaaef, "Sub - reads and checks PCOPY page numbers"), | |
| (0xaaf0, 0xaaf0, "GET token dispatch address"), | |
| (0xaaf3, 0xaaf3, "PUT token dispatch address"), | |
| (0xabd4, 0xabec, "5 entry table of form Word, Word, Token for matching PUT mode"), | |
| (0xac87, 0xac87, "PAINT token dispatch address"), | |
| (0xadbd, 0xadbd, "PLAY token dispatch address"), | |
| (0xae9a, 0xae9a, "Play Note: A contains ASCII code (CoCo $9ad7)"), | |
| (0xaf33, 0xaf33, "Sub - gets next PLAY cmd in A"), | |
| (0xafd9, 0xafd9, "PLAY IRQ routine - branches to $bb02 if $00e3 == 0x0000"), | |
| (0xaff6, 0xaffc, "Table maps PLAY notes A-G to tone number"), | |
| (0xaffd, 0xb014, "Table"), | |
| (0xb015, 0xb050, "Table"), | |
| (0xb051, 0xb051, "DRAW token dispatch address (CoCo $9cb6)"), | |
| (0xb238, 0xb238, "CIRCLE token dispatch address"), | |
| (0xb39b, 0xb3b3, "Called after Hardware init routine, following a RESET Inits stack, checks for Cold/warm start. If $0071 contains 0x55 and $0072:0073 points to NOP then execution is passed to [$0072:0073] otherwise branches to $b3ba"), | |
| (0xb3b4, 0xb3b9, "RESET interrupt service routine (CoCo $a027) Loads Y with $b39b and JMPs $8000"), | |
| (0xb3ba, 0xb3ba, "Cold start routine - clears lo mem, inits BASIC"), | |
| (0xb400, 0xb400, "Boot Basic: Restarts BASIC interpreter (CoCo $a0b6)"), | |
| (0xb432, 0xb43b, "Checks for $c000:c001 = 0x444b ('DK') and branches to $c002 if found"), | |
| (0xb44f, 0xb44f, "Warm start RESET jumps here"), | |
| (0xb469, 0xb46e, "FIRQ interrupt service routine - branches to $b46f if source was cartridge else RTI"), | |
| (0xb46f, 0xb47a, "Calls $b480 twice, then JMPs to $8000 with Y = $b47b"), | |
| (0xb47b, 0xb47f, "CLRs $0071, then JMPs $c000 to start cartridge"), | |
| (0xb480, 0xb486, "Loads X from $008a (0x0000) and decrements to 0x0000 Gives 524,298 cycle, approx. 590ms delay"), | |
| (0xb487, 0xb494, "14 bytes copied to $009d-$00aa at startup"), | |
| (0xb495, 0xb4b2, "30 bytes copied to $010c-$0129 at startup"), | |
| (0xb4b3, 0xb4cc, "'(C) 1982 DRAGON DATA LTD ', 0x0d"), | |
| (0xb4cd, 0xb4ec, "'16K BASIC INTERPRETER 1.0 ', 0x0d"), | |
| (0xb4ed, 0xb504, "'(C) 1982 BY MICROSOFT', 0x0d, 0x0d, 0x00"), | |
| (0xb505, 0xb505, "Waits for key with cursor ? Called from SuperDos E6 ROM"), | |
| (0xb54a, 0xb54a, "%OUTCHR% Sends char in A to DEVN (CoCo $a282) Called indirectly from [$a002]"), | |
| (0xb64c, 0xb64c, "CLOSE token dispatch address"), | |
| (0xb65f, 0xb65f, "Close files: closes an open tape stream (CoCo $a42d)"), | |
| (0xb682, 0xb682, "CSAVE token dispatch address"), | |
| (0xb6d4, 0xb6d4, "CLOAD token dispatch address"), | |
| (0xb6a5, 0xb6a5, "Write BASIC: writes BASIC program to cassette (CoCo $a469)"), | |
| (0xb714, 0xb714, "Loads a headerless program from cassette {10}"), | |
| (0xb748, 0xb748, "Read Binary file from tape (CoCo $a511)"), | |
| (0xb770, 0xb770, "EXEC token dispatch address"), | |
| (0xb796, 0xb796, "INKEY$ function token dispatch address"), | |
| (0xb7cc, 0xb7cc, "Copy B bytes from X to U"), | |
| (0xb800, 0xb800, "EOF function token dispatch address"), | |
| (0xb81e, 0xb81e, "SKIPF token dispatch address"), | |
| (0xb828, 0xb828, "OPEN token dispatch address"), | |
| (0xb8b3, 0xb8b3, "Find File: searches tape for matching filename (CoCo $a681)"), | |
| (0xb933, 0xb933, "Read 1st Block: reads filename block to cas. buf (CoCo $a701)"), | |
| (0xb93e, 0xb93e, "%BLKIN% reads a block of data into cas. buffer (CoCo $a70b) Called indirectly from [$a006]"), | |
| (0xb981, 0xb981, "MOTOR token dispatch address"), | |
| (0xb991, 0xb991, "Write 1st Block (CoCo $a7e5)"), | |
| (0xb999, 0xb9d1, "%BLKOUT% writes a block of data to cassette (CoCo $a7f4) Called indirectly from [$a008]"), | |
| (0xb9cd, 0xb9d1, "Write byte 0x55 to cassette by JMPing to $801e"), | |
| (0xb9cf, 0xb9d1, "JMPs to $801e to write byte in A"), | |
| (0xb9d2, 0xb9d2, "SET token dispatch address"), | |
| (0xb9df, 0xb9df, "Set LoRes Pixel: X contains screen addr, B the colour and $00b8 the OR data (CoCo $a88d)"), | |
| (0xba03, 0xba03, "RESET token dispatch address"), | |
| (0xba07, 0xba07, "Reset LoRes Pixel: X contains screen addr, $00b8 OR data (CoCo $a8b5)"), | |
| (0xba28, 0xba28, "Calc LoRes Pixel Pos: Stack contains vert and horiz coords (CoCo $a8d9)"), | |
| (0xba44, 0xba44, "POINT function token dispatch address"), | |
| (0xba5f, 0xba5f, "CLS token dispatch address"), | |
| (0xba77, 0xba85, "Clears text screen (CoCo $a928)"), | |
| (0xba79, 0xba85, "Clears text screen with value in B (CoCo $a92a)"), | |
| (0xba86, 0xba8d, "Clears screen, prints '(C) 1982 BY MICROSOFT' msg at $b4ec"), | |
| (0xba9a, 0xba9a, "SOUND token dispatch address"), | |
| (0xbaa0, 0xbaa0, "Produces Beep of length B, pitch in $008c (CoCo $a951)"), | |
| (0xbac3, 0xbac3, "Audio off: Disables sound (CoCo $a974)"), | |
| (0xbac5, 0xbad3, "Enables sound (CoCo $a976)"), | |
| (0xbad4, 0xbade, "Reset DAC - writes (D32 0x7e; D64 0x7c) to D/A (CoCo $a985)"), | |
| (0xbad6, 0xbade, "Writes A to DAC - bits 0,1 of A must be 0 (CoCo $a987)"), | |
| (0xbadf, 0xbadf, "AUDIO token dispatch address"), | |
| (0xbaec, 0xbaec, "AUDIO ON: B must be 0x00 on entry (CoCo $a99d)"), | |
| (0xbaf1, 0xbb01, "Sub to init PIA for sound source output specified by the lower 2 bits of B - 00 = DAC, 01 = Tape input, 10 = External Cart source, 11 = none This code duplicates the function of $bd41-bd51, the only dif being an ASRB replacing a RORB"), | |
| (0xbb02, 0xbb0c, "Interrupt service subroutine to decrement $008d:008e, returns with RTI"), | |
| (0xbb0d, 0xbb0d, "JOYSTK function token dispatch address"), | |
| (0xbb26, 0xbb34, "Jumped to from selfmodifying CHRGET routine at $009f"), | |
| (0xbb3c, 0xbb87, "D64 - Hardware init, JMPd to from $8000, Y should contain return address"), | |
| (0xbb40, 0xbb87, "D32 - Hardware init, JMPd to from $8000, Y should contain return address"), | |
| (0xbb80, 0xbb82, "D64 - Boots 64K mode with JMP $bf49"), | |
| (0xbb88, 0xbb9e, "Software init, JMPd to from $8003, inits $008f-009b, $0148-0150 with ROM defaults"), | |
| (0xbb92, 0xbb94, "D64 - patched to JSR $BEFF (CLR $03fd-03ff; LDU #$0148)"), | |
| (0xbb97, 0xbb9e, "CopyXtoU - copies B bytes from X to U"), | |
| (0xbb9f, 0xbbab, "default values for $008f-009b"), | |
| (0xbbac, 0xbbb4, "default values for $0148-0150"), | |
| (0xbbb5, 0xbbcc, "Flashes cursor, JMPd to from $8009 (CoCo $a199)"), | |
| (0xbbc5, 0xbbcc, "Decrements X from 0x045e, gives 1ms delay"), | |
| (0xbbc8, 0xbbcc, "Decrements X until 0 then returns"), | |
| (0xbbcd, 0xbbd9, "subroutine"), | |
| (0xbbe5, 0xbbea, "%INCH% Scans keyboard, returns char in A, JMPd to from $8006 (CoCo $a1c1)"), | |
| (0xbbec, 0xbbec, "Keyboard polling sub, returns key code in A"), | |
| (0xbca0, 0xbca0, "Clear VDU line from cursor posn (CoCo $a323)"), | |
| (0xbcab, 0xbcab, "%OUTCH% Put char in A to screen, JMPd to from $800c (CoCo $a30a)"), | |
| (0xbcf5, 0xbd09, "%TXLPCH% Low level routine to print char in A (CoCo $)"), | |
| (0xbd0a, 0xbd0a, "PCRLF: moves print head to next line"), | |
| (0xbd1a, 0xbd1a, "Send char in A to printer, JMPd to from $800f (CoCo $a2bf) D64 - This routine uses Y as well and is source of a bug in the Clear-J fn of Visitext Word-Pro."), | |
| (0xbd41, 0xbd51, "%SNDSEL% Selects Analogue Mux channel from B. Used to read Joysticks or set sound channel (CoCo $a9a2) 0x00 DAC / Right Joystick, x-axis 0x01 Cassette / Right Joystick, y-axis 0x02 Cartridge / Left Joystick, x-axis 0x03 Unused / Left Joystick, y-axis See also $baf1-bb01"), | |
| (0xbd52, 0xbd52, "%JOYIN% Reads Joysticks updates $015a-015d, JMPd to from $8012 (CoCo $a9de)"), | |
| (0xbd8a, 0xbd90, "Increments $0082, samples Cassette input bit into CC.C"), | |
| (0xbd91, 0xbd9d, "Sub"), | |
| (0xbd97, 0xbd9d, "Sub"), | |
| (0xbd99, 0xbd9d, "Sub"), | |
| (0xbd9e, 0xbd9e, "Sub"), | |
| (0xbda0, 0xbda0, "Sub"), | |
| (0xbda5, 0xbda5, "%BITIN% Get one bit from cassette to CC.C, JMPd to from $8027 (CoCo $a755)"), | |
| (0xbdad, 0xbdad, "%CBIN% Input byte from cassette into A, JMPd to from $8024 (CoCo $a749)"), | |
| (0xbdb9, 0xbdb9, "Sub"), | |
| (0xbdbf, 0xbdbf, "Sub"), | |
| (0xbdcf, 0xbddb, "%CASON% Motor on - Turns on relay, loads X with delay value from $0095:0096 (0xda5c) then LBRAs to $bbc8, JMPd to from $8015 (CoCo $a7ca)"), | |
| (0xbddc, 0xbde6, "%CASOFF% Motor off - turns relay off, re-enables FIRQ, IRQ, JMPd to from $8018 (CoCo $a7eb)"), | |
| (0xbde7, 0xbde7, "%CSRDON% Read Leader - Disables FIRQ, IRQ, Cassette on, init for reading, JMPd to from $8021 (CoCo $a77c)"), | |
| (0xbe12, 0xbe43, "%CBOUT% Output byte in A to cassette, JMPd to from $801e (CoCo $a82a)"), | |
| (0xbe44, 0xbe67, "36 bytes of Sine Wave data in upper 5 bits of each byte."), | |
| (0xbe68, 0xbe7a, "%WRTLDR% disables FIRQ, IRQ, turns on cassette, writes number of leader bytes = 0x55 according to $0090:0091 (d32 0x0080), JMPd to from $801b Pre: B,Y Des: CC,A,X Ret: X=0x0000,A=0x55"), | |
| (0xbe7b, 0xbe7b, "D32 - JMPd to from $802a (RTS)"), | |
| (0xbe7b, 0xbe97, "D64 - Read byte from serial port to A, JMPd to from $802a"), | |
| (0xbe7c, 0xbe7c, "D32 - JMPd to from $802d (RTS)"), | |
| (0xbe7d, 0xbe7e, "D32 - JMPd to from $8030 (COMB; RTS)"), | |
| (0xbe7f, 0xbfef, "D32 - Unused area, all 0x00"), | |
| (0xbe98, 0xbea5, "D64 - Output byte in A to serial port, JMPd to from $802d"), | |
| (0xbea6, 0xbebd, "D64 - Set baud rate in B, JMPd to from $8030"), | |
| (0xbebe, 0xbec4, "D64 - Lookup table to map B to ACIA baud rate constant"), | |
| (0xbec5, 0xbeda, "D64 - Key scan which pauses printer during printing {8}"), | |
| (0xbeff, 0xbf0b, "D64 - Patched into Software init to CLR $03fd-03ff"), | |
| (0xbf0c, 0xbf1f, "D64 - handles serial printer end of line delay"), | |
| (0xbf20, 0xbf48, "D64 - IRQ routine which can be hooked in D32 mode to provide 64 mode style auto-repeat and serial support"), | |
| (0xbf49, 0xbf59, "D64 - Copies 64 mode bootstrap code to $01da and JMPs EXEC points here at startup."), | |
| (0xbf5a, 0xbfe8, "D64 - Bootstrap routine code copied to $01da-0268"), | |
| (0xbf9c, 0xbf9d, "D64 - '64' Can be used to check for D64 32k mode ROM"), | |
| (0xbfe9, 0xbfef, "D64 - Unused 0x00"), | |
| (0xbff0, 0xbfff, "6809 interrupt vectors mapped to $fff0-$ffff by SAM"), | |
| (0xbff0, 0xfff1, "Reserved ($0000)"), | |
| (0xbff2, 0xbff3, "SWI3 vector ($0100)"), | |
| (0xbff4, 0xbff5, "SWI2 vector ($0103)"), | |
| (0xbff6, 0xbff7, "FIRQ vector ($010f)"), | |
| (0xbff8, 0xbff9, "IRQ vector ($010c)"), | |
| (0xbffa, 0xbffb, "SWI vector ($0106)"), | |
| (0xbffc, 0xbffd, "NMI vector ($0109)"), | |
| (0xbffe, 0xbfff, "RESET vector ($b3b4)"), | |
| ) |
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| """ | |
| information from: | |
| * http://dragon32.info/info/memmap.html - Dragon 32/64 Memory Map (with CoCo refs) | |
| * http://dragon32.info/info/romref.html - Dragon 32/64 ROM Reference guide | |
| AUTHOR: Graham E. Kinns | |
| """ | |
| txt = """ | |
| $0000 BREAK message flag - if negative print BREAK | |
| $0001 String delimiting char (0x22 '"') | |
| $0002 Another delimiting char (0x22 '"') | |
| $0003 General counter byte | |
| $0004 Count of IFs looking for ELSE | |
| $0005 DIM flag | |
| $0006 %VALTYP% Variable type flag (0x00 numeric, Non-0x00 string) | |
| $0007 Garbage collection flag | |
| $0008 Subscript allowed flag | |
| $0009 INPUT/READ flag | |
| $000a Arithmetic use | |
| $000b:000c String ptr first free temporary | |
| $000d:000e String ptr last free temporary | |
| $000f-0018 Temporary results | |
| $0019:001a Start address of BASIC program ($1e01, $2401 with DOS) | |
| $001b:001c Start address of simple variables | |
| $001d:001e Start address of array variables | |
| $001f:0020 End of storage, Start of unused mem after BASIC program | |
| $0021:0022 Top of stack, growing down ($7e36) | |
| $0023:0024 Top of free string space ($7ffe) | |
| $0025:0026 Temp Ptr to string in string space | |
| $0027:0028 Top of Ram available to BASIC - returned by DOS HIMEM ($7ffe) | |
| $0029:002a Last/CONT line number | |
| $002b:002c Temp/Input line number store | |
| $002d:002e Ptr to next statement to be executed | |
| $002f:0030 Direct mode command text pointer | |
| $0031:0032 Current DATA statement line number | |
| $0033:0034 Ptr to next item in current DATA statement | |
| $0035:0036 Ptr to keyboard input buffer | |
| $0037:0038 Ptr to variable last in use | |
| $0037:0038 ASCII codes of last variable used {1} | |
| $0039:003a VARPTR address of last variable used | |
| $003b-004e Evaluation variables | |
| $0041:0042 High end destination addr for block | |
| $0043:0044 High end origin addr | |
| $0045:0046 Low end destination addr for block | |
| $0047:0048 Low end origin addr | |
| $004f-0054 Floating Point Accumulator Num 1 | |
| $004f Exponent | |
| $0050-0053 Mantissa | |
| $0050:0051 16 bit values in FAC stored here | |
| $0052:0053 VARPTR of variables is stored here {1} | |
| $0054 Mantissa Sign (0x00 positive, 0xff negative) | |
| $0055 Temp sign of FAC | |
| $0056 String variable length | |
| $0057-005b String Descriptor temporaries | |
| $005c-0061 Floating Point Accumulator Num 2 | |
| $0062 Sign comparison | |
| $0062-0067 Misc use | |
| $0063 CoCo - Extended precision byte {1} - also Dragon ? | |
| $0068:0069 Current Line number (0xffff in direct mode) | |
| $006a-006e Device Params used in PRINT | |
| $006a Device Comma field width (VDU - 0x10) | |
| $006b Device Last comma field | |
| $006c Device Current column num (VDU - 0x00-0x1f) | |
| $006d Device Line width - num chars per line (VDU 0x20) | |
| $006e Cassette I/O in progress flag - 0xff on input or output | |
| occurring {9} | |
| $006f %DEVNUM% Current device number | |
| 0x00 VDU screen | |
| 0x01-0x04 DOS - DosPlus only - drive number. | |
| 0xfd serial port (Dragon 64 only) | |
| 0xfe printer | |
| 0xff tape | |
| $0070 Cassette EOF flag - non-zero if EOF - used by EOF(-1) {9} | |
| $0071 Restart flag - if not 0x55 cold start on reset, see $0072 | |
| $0072:0073 Restart vector - Following a reset if $0072 pts to a | |
| NOP opcode and $0071 is 0x55 then a warm start is | |
| performed to this vector else a cold start. (0xb44f) | |
| (DOS SuperDosE6 $c706) | |
| $0074:0075 Physical end of Ram minus 1 (0x7ffe) | |
| $0076:0077 Unused | |
| $0078 Cassette status | |
| 0x00 closed | |
| 0x01 input | |
| 0x02 output | |
| $0079 Cassette I/O - Buffer size - bytes in block | |
| $007a:007b Header buffer addr - ptr to filename block | |
| $007c %BLKTYP% Cassette block type | |
| 0x00 filename | |
| 0x01 data | |
| 0xff EOF block | |
| $007d %DBLEN% Cassette block length, number bytes read/to write | |
| $007e:007f %DBADR% Cassette I/O Buffer address | |
| Contains 1 + End address of last program loaded | |
| $0080 Cassette I/O - block checksum used internally | |
| $0081 Cassette I/O - error code | |
| 0x00 none | |
| 0x01 CRC (checksum) error | |
| 0x02 attempt to load into ROM | |
| $0082 Cassette I/O - Pulse width counter | |
| $0083 Cassette I/O - Sync bits counter | |
| $0084 Cassette I/O - Bit phase flag | |
| $0085 Last sine wave value for output to DAC | |
| $0086 Data for low res SET/RESET, POINT routines | |
| $0087 ASCII code of last key pressed (cleared by Break check) | |
| $0088:0089 Current VDU cursor addr (typ 0x0400-0x05ff) | |
| $008a:008b Gen purpose 16bit scratch pad / 16bit zero (0x0000) {2} | |
| $008a:008b CoCo - Motor on delay | |
| $008c Sound pitch frequency | |
| $008d:008e Gen purpose countdown (?sound timer {2}) | |
| $008f Cursor flash counter (0x20) | |
| $0090:0091 Cassette leader byte count - number of 0x55 bytes written | |
| as sync leader (D32 - 0x0080, D64 - 0x0100) | |
| $0092 Minimum cycle width of 1200Hz (0x12) | |
| $0092:0093 CoCo - Cassette leader byte count | |
| $0093 Minimum pulse width of 1200Hz (0x0a) | |
| $0094 Maximum pulse width of 1200Hz (0x12) | |
| $0095:0096 Motor on delay (0xda5c = approx 0.5s) | |
| $0095:0096 CoCo - Serial Baud rate constant (0x0057 = 600 baud) | |
| $0097:0098 Keyboard scan debounce delay constant (0x045e) | |
| $0097:0098 CoCo - Serial Line Printer End of Line delay (0x0001) | |
| $0099 Printer comma field width (0x10 = 16) | |
| $009a Printer last comma field (0x74 = 116) (CoCo 0x70 = 112) | |
| $009b Printer line width dflt (0x84 = 132) | |
| $009c Printer head column posn == POS(-2) | |
| Updated by LPOUT ($800f) routine | |
| $009d:009e EXEC default entry address | |
| (D32 - $8b8d = ?FC ERROR; D64 - $bf49 = Boot 64k mode) | |
| $009f-00aa %CHRGET% Self modifying routine to read next char | |
| $009f:00a0 INC <$A7 | |
| $00a1:00a2 BNE $00A5 | |
| $00a3:00a4 INC <$A6 | |
| $00a5-00a7 LDA >xxxx | |
| $00a6:00a7 Ptr to next character to read | |
| $00a8-00aa JMP $BB26 | |
| $00ab-00ae Used by RND | |
| $00af TRON/TROFF trace flag - non zero for TRON | |
| $00b0:00b1 Ptr to start of USR table ($0134; DOS - $0683) | |
| $00b2 Current foreground colour (0x03) | |
| $00b3 Current background colour (0x00) | |
| $00b4 Temp/active colour in use | |
| $00b5 Byte value for current colour - ie bit pattern | |
| $00b6 Graphics PMODE number in use (0x00) | |
| $00b7:00b8 Ptr to last byte+1 of current graphics mode ($0c00 w/o Dos) | |
| $00b9 Number of bytes per line in current PMODE (0x10) | |
| $00ba:00bb Ptr to first byte of current graphics mode ($0600) | |
| $00bc Msb of start of graphics pages (0x06 or 0x0c with Dos) | |
| $00bd:00be Current X cursor position (not user available ?{1}) | |
| $00bf:00c0 Current Y cursor position (not user available ?{1}) | |
| $00c1 Colour set currently in use (0x08 if colorset 1 {1}) | |
| $00c2 Plot/Unplot flag: 0x00 reset, non zero set | |
| $00c3:00c4 Current horizontal pixel number | |
| $00c5:00c6 Current vertical pixel number | |
| $00c7:00c8 Current X cursor coord (0x0080) | |
| $00c9:00ca Current Y cursor coord (0x0060) | |
| $00cb:00cc CIRCLE command X coood as if drawn in PMODE 4 | |
| $00cd:00ce CIRCLE command Y coord as if drawn in PMODE 4 | |
| $00cf:00d0 CIRCLE radius as if drawn in PMODE 4 | |
| $00cf:00d0 RENUM increment value | |
| $00d1:00d2 RENUM start line | |
| $00d3:00d4 CLOADM 2's complement load offset | |
| $00d5:00d6 RENUM new start line | |
| $00d7 EDIT line length (not user available) | |
| $00d7 PLAY - | |
| $00d8 PLAY - bytes left in string | |
| $00d9:00da PLAY - ptr to current char in string | |
| $00d8-00dd Graphics use ? {2} | |
| $00de PLAY: Current octave in use (0-4) (0x02) | |
| $00df:00e0 PLAY: Volume data for volume setting (D32 - 0xba42) | |
| (D64 - 0xb844) | |
| $00e1 PLAY: Current note length (0x04) | |
| $00e2 PLAY: Current tempo (0x02) | |
| $00e3:00e4 PLAY: Music duration count | |
| $00e5 PLAY: Music dotted note flag | |
| $00e6-$00ff D32 - Unused in Dragon 32 w/o DOS | |
| $00e6 CoCo - baud rate constant | |
| $00e7 Coco - Input timeout constant | |
| $00e8 Current angle used in DRAW {1} (??) | |
| $00e9 Current scale used in DRAW {1} (??) | |
| $00ea-00f6 DOS - Used by DragonDos | |
| $00f8 DOS - sector currently seeking {SuperDos Rom} | |
| $0100-0102 SWI3 Secondary vector (Uninitialised) | |
| $0103-0105 SWI2 Secondary vector (Uninitialised) | |
| $0106-0108 SWI Secondary vector (Uninitialised) | |
| $0109-010b NMI Secondary vector (Uninitialised) | |
| (CoCo DOS JMP $d7ae; SuperDos E6 JMP $c71e) | |
| $010c-010e IRQ Secondary vector - JMP $9d3d | |
| (CoCo JMP $a9b3 or $894c (extended); CoCo DOS JMP $d7bc; | |
| SuperDos E6 JMP $c727) | |
| $010f-0111 FIRQ Secondary vector - JMP $b469 | |
| (CoCo JMP $a0f6; SuperDos E6 JMP $c7da) | |
| $0112:0113 TIMER value | |
| $0114 Unused | |
| $0115-0119 Random number seeds (0x80, 0x4f, 0xc7, 0x52, 0x59) | |
| $011a-011f D32 - Unused | |
| $011a D64 - %FLAG64% checked on Reset from 64K mode | |
| if 0x55 then checksum at $011b is checked against | |
| current contents of Ram, if the same then a warm start | |
| is performed (64 mode) else a cold start (32 mode) | |
| $011a CoCo - Caps lock, 0x00 lower, non-0x00 upper | |
| $011b:011c D64 - %CSUM64% 16bit sum of words of BASIC Rom-in-ram in | |
| 64K mode from $c000 to $feff | |
| $011b:011c CoCo - Keyboard Delay constant | |
| $011d-011f CoCo - JMP $8489 ? {1} | |
| $011d D64 - %LSTKEY% Last key code return by keybd poll routine | |
| $011e D64 - %CNTDWN% Auto repeat countdown | |
| $011f D64 - %REPDLY% Auto repeat inter-repeat delay value (0x05) | |
| $0120 %STUB0% Stub 0 - Number of reserved words (0x4e) | |
| $0121:0122 Stub 0 - Ptr to reserved words table ($8033) | |
| $0123:0124 Stub 0 - Ptr to reserved words dispatch table ($8154) | |
| $0125 Stub 0 - Number of functions (0x22) | |
| $0126:0127 Stub 0 - Ptr to reserved function words table ($81ca) | |
| $0128:0129 Stub 0 - Ptr to function words dispatch table ($8250) | |
| $012a %STUB1% Stub 1 - Number of reserved words (0x00) | |
| (DOS 0x1a) | |
| $012b:012c Stub 1 - Ptr to reserved words table (0x0000) | |
| (DOS $ded4; SuperDosE6 $deda) | |
| $012d:012e Stub 1 - Ptr to reserved words token processing routine | |
| ($89b4; DOS $c64c; SuperDosE6 $c670) | |
| $012f Stub 1 - Number of functions (0x00) | |
| (DOS 0x07) | |
| $0130:0131 Stub 1 - Ptr to function table (0x0000) | |
| (DOS $debb; SuperDosE6 $dec1) | |
| $0132:0133 Stub 1 - Ptr to function token processing routine | |
| ($89b4; DOS $c667; SuperDosE6 $c68b) | |
| $0134 %STUB2% Stub 2 - acts as a stub terminator under DOS | |
| $0134-0147 USR address table, relocated by DOS (10 x 2 bytes) ($8b8d) | |
| $0148 Auto line feed flag on buffer full - setting this to 0x00 | |
| causes a EOL sequence to be sent to printer when buffer | |
| reaches length in $009b (0xff) | |
| $0149 Alpha Lock flag - 0x00 Lower case, 0xff Upper case (0xff) | |
| $014a-0150 Line Printer End of line termination sequence | |
| $014a Number of bytes in EOL sequence 1-6 (0x01) | |
| $014b EOL chr 1 (0x0d CR) | |
| $014c EOL chr 2 (0x0a LF) | |
| $014d EOL chr 3 (D64 - 0x00; D32 - 0x20 ' ') | |
| $014e EOL chr 4 (D64 - 0x00; D32 - 0x44 'D' Duncan) | |
| $014f EOL chr 5 (D64 - 0x00; D32 - 0x4e 'N' N.) | |
| $0150 EOL chr 6 (D64 - 0x00; D32 - 0x4f 'S' Smeed) | |
| $0151-0159 Keyboard matrix state table | |
| $0152-0159 CoCo - Keyboard roll-over table | |
| $015a-015d %POTVAL% Joystick values (0-63) | |
| $015a Right Joystick, x value == JOYSTK(0) | |
| $015b Right Joystick, y value == JOYSTK(1) | |
| $015c Left Joystick, x value == JOYSTK(2) | |
| $015d Left Joystick, y value == JOYSTK(3) | |
| $015e-01a8 Ram hooks - each is called from ROM with a JSR before | |
| carrying out the specified function | |
| $015e-0160 Device Open | |
| (DOS JMP $d902; SuperDosE6 $d8f4) | |
| $0161-0163 Verify Device Number | |
| (DOS SuperDosE6 JMP $d8ec) | |
| $0164-0166 Device Init | |
| (DOS SuperDosE6 JMP $c29c) | |
| $0167-0169 Output char in A to DEVN | |
| (DOS JMP $d8fa; SuperDosE6 $d90b) | |
| $0167 Setting to 0xff disables keyboard ?!? {1} | |
| Setting to 0x39 (RTS) allows use of SCREEN 0,1 etc. ??{1} | |
| $016a-016c Input char from DEVN to A | |
| (DOS SuperDosE6 JMP $c29c) | |
| $016d-016f Input from DEVN using INPUT | |
| (DOS SuperDosE6 JMP $c29c) | |
| $0170-0172 Output to DEVN using PRINT | |
| (DOS SuperDosE6 JMP $c29c) | |
| $0173-0175 Close all files | |
| (DOS SuperDosE6 JMP $c29c) | |
| $0176-0178 Close file | |
| (DOS JMP $d917; SuperDosE6 $d6f5) | |
| $0179-017b Command Interpreter - interpret token in A as command | |
| (DOS SuperDosE6 JMP $c29c) | |
| $017c-017e Re-request input from keyboard | |
| (DOS JMP $d960; SuperDosE6 $d954) | |
| $017f-0181 Check keys - scan for BREAK, SHIFT+'@' | |
| (DOS SuperDosE6 JMP $c29c) | |
| $017f Setting this to 0x9e disables LIST/DIR {1} | |
| $0182-0184 Line input from DEVN using LINE INPUT | |
| (DOS JMP $d720; SuperDosE6 $dac5) | |
| $0185-0187 Close BASIC file read in and goto Command mode | |
| (DOS SuperDosE6 JMP $c29c) | |
| $0188-018a Check EOF on DEVN | |
| (DOS JMP $dd4d; SuperDosE6 $dd54) | |
| $018b-018d Evaluate expression | |
| (DOS SuperDosE6 JMP $c29c) | |
| $018e-0190 User error trap, called from $8344 | |
| (DOS SuperDosE6 JMP $c29c) | |
| $0191-0193 System error trap, called from $8344 | |
| (DOS JMP $c69e; SuperDosE6 $c6c5) | |
| $0194-0196 Run Link - used by DOS to RUN filename | |
| (DOS JMP $d490; SuperDosE6 $d4b7) | |
| $0197-0199 Reset Basic Memory, editing or entering BASIC lines | |
| $019a-019c Get next command - reading in next command to be executed | |
| $019d-019f Assign string variable | |
| $01a0-01a2 Screen access - CLS, GET, PUT | |
| $01a3-01a5 Tokenise line | |
| $01a6-01a8 De-Tokenise line | |
| $01a9-01d0 String buffer area | |
| $01d1 Cassette filename length in range 0-8 | |
| $01d2-01d9 Cassette filename to search for or write out | |
| $01da-02d8 Cassette I/O default data buffer - 255 bytes | |
| $01da-0268 D64 - 64K mode bootstrap routine is copied here to run | |
| $01da-01e1 Cassette buffer - filename of file read | |
| $01e2 Cassette buffer - filetype | |
| 0x00 BASIC program | |
| 0x01 Data | |
| 0x02 Machine code | |
| $01e3 Cassette buffer - ASCII flag | |
| 0x00 Binary | |
| 0xff ASCII flag | |
| $01e4 Cassette buffer - gap flag | |
| 0x00 Continous | |
| 0xff Gapped file | |
| $01e5:01e6 Cassette buffer - Entry (Exec) addr of m/c file | |
| $01e7:01e8 Cassette buffer - Load address for ungapped m/c file | |
| $02d9-02dc BASIC line input buffer preamble | |
| $02dd-03d8 BASIC line input buffer - used for de-/tokenising data | |
| $02dd-03dc CoCo - 255 byte keyboard buffer {1} | |
| $02e1-033b CoCo - 90 byte screen buffer {1} | |
| $03d9-03ea Buffer space | |
| $03eb-03fc Unused | |
| $03fd-03ff D32 - Unused in Dragon 32 | |
| $03fd:03fe D64 - Printer end of line delay in milliseconds (0x0000) | |
| $03ff D64 - %PRNSEL% selects default printer port | |
| 0x00 Parallel, non-0x00 Serial (0x00) | |
| $0400-05ff Default Text screen | |
| $0600-1dff Available graphics pages w/o DOS | |
| $0600-0bff DOS - workspace area see also $00ea-$00f6 | |
| $0600-0dff CoCo DOS workspace area (no more info) | |
| $0c00-23ff DOS - Available graphics pages | |
| $8000-bfff BASIC ROM in 32K mode | |
| $8000-9fff CoCo - Extended Color BASIC ROM | |
| $a000-bfff CoCo - Color BASIC ROM | |
| $bff0-bfff These addresses mapped from ROM to $fff0-$ffff by the SAM | |
| $c000-dfff DOS - Dos ROM | |
| $c000-feff DOS - Cumana DOS ROM only | |
| $c000-feff Available address range to cartridge expansion port 32K mode | |
| $c000-feff D64 - 64K mode - copy of BASIC ROM 2 exists in RAM here | |
| $ff00 PIA 0 A side Data reg. | |
| PA7 i/p Comparator input | |
| PA6 i/p Keyboard Matrix Ent Clr Brk N/c N/c N/c N/c Shift | |
| PA5 i/p Keyboard Matrix X Y Z Up Dwn Lft Rgt Space | |
| i/p CoCo - Keyboard 8 9 : ; , - . / | |
| PA4 i/p Keyboard Matrix P Q R S T U V W | |
| i/p CoCo - Keyboard 0 1 2 3 4 5 6 7 | |
| PA3 i/p Keyboard Matrix H I J K L M N O | |
| i/p CoCo - Keyboard X Y Z Up Dwn Lft Rgt Space | |
| PA2 i/p Keyboard Matrix @ A B C D E F G | |
| i/p CoCo - Keyboard P Q R S T U V W | |
| PA1 i/p Keyboard Matrix 8 9 : ; , - . / | |
| i/p CoCo - Keyboard H I J K L M N O | |
| i/p Left Joystick Button | |
| PA0 i/p Keyboard Matrix 0 1 2 3 4 5 6 7 | |
| i/p CoCo - Keyboard @ A B C D E F G | |
| i/p Right Joystick Button | |
| $ff01 PIA 0 A side Control reg. | |
| CA1 i/p Horiz Sync Interrupt from VDG (15625Hz; CoCo 15750Hz) | |
| CA2 o/p Analogue Mux channel select line A | |
| Selects Joystick Axis (0 x-axis, 1 y-axis) | |
| $ff02 PIA 0 B side Data reg. | |
| PB7 o/p Keyboard Matrix 7 / G O W Space Shift | |
| o/p Printer Out bit 7 | |
| PB6 o/p Keyboard Matrix 6 . F N V Right N/c | |
| o/p Printer Out bit 6 | |
| PB5 o/p Keyboard Matrix 5 - E M U Left N/c | |
| o/p Printer Out bit 5 | |
| PB4 o/p Keyboard Matrix 4 , D L T Down N/c | |
| o/p Printer Out bit 4 | |
| PB3 o/p Keyboard Matrix 3 ; C K S Up N/c | |
| o/p Printer Out bit 3 | |
| PB2 o/p Keyboard Matrix 2 : B J R Z Break | |
| o/p Printer Out bit 2 | |
| PB1 o/p Keyboard Matrix 1 9 A I Q Y Clear | |
| o/p Printer Out bit 1 | |
| PB0 o/p Keyboard Matrix 0 8 @ H P X Enter | |
| o/p Printer Out bit 0 | |
| $ff03 PIA 0 B side Control reg. | |
| CB1 i/p Field Sync Interrupt from VDG (50Hz; CoCo 60Hz) | |
| CB2 o/p Analogue Mux channel select line B | |
| Selects Joystick (0 right, 1 left) | |
| $ff04 D64 - ACIA serial port read/write data reg. | |
| $ff05 D64 - ACIA serial port status (R)/ reset (W) reg. | |
| $ff06 D64 - ACIA serial port command reg. | |
| $ff07 D64 - ACIA serial port control reg. | |
| $ff20 PIA 1 A side Data reg. | |
| PA7 o/p DAC bit 5 | |
| PA6 o/p DAC bit 4 | |
| PA5 o/p DAC bit 3 | |
| PA4 o/p DAC bit 2 | |
| PA3 o/p DAC bit 1 | |
| PA2 o/p DAC bit 0 | |
| PA1 o/p Printer Strobe - Active High (i.e. Lo-Hi-Lo to print) | |
| o/p CoCo - RS232 Tx o/p | |
| PA0 i/p Cassette waveform single bit input | |
| $ff21 PIA 1 A side Control reg. | |
| CA1 i/p Printer Acknowledge | |
| i/p CoCo - CD RS232 Carrier Detect input | |
| CA2 o/p Cassette Relay Motor control | |
| $ff22 PIA 1 B side Data reg. | |
| PB7 o/p *A/G VDG control line | |
| PB6 o/p GM2 VDG control line | |
| PB5 o/p GM1 VDG control line | |
| PB4 o/p GM0 or *INT/EXT VDG control line | |
| PB3 o/p CSS VDG control line | |
| PB2 i/p D32 - RAM size (0 8 x 32K bit; 1 16 x 16K bit) {6} | |
| o/p D64 - ROM select (1 32K mode; 0 64K mode) | |
| PB1 i/p Sample audio source | |
| o/p Single bit sound output | |
| PB0 i/p Printer Busy - Active High | |
| i/p CoCo - RS232 Rx input | |
| $ff23 PIA 1 B side Control reg. | |
| CB1 i/p Cartridge CART FIRQ auto-start signal | |
| CB2 o/p Sound Mux enable (1 enable, 0 single bit sound) | |
| $ff40 DOS - Disk Controller command/status reg. | |
| $ff41 DOS - Disk Controller track reg. | |
| $ff42 DOS - Disk Controller sector reg. | |
| $ff43 DOS - Disk Controller data reg. | |
| $ff48 DOS - Disk Controller hardware control reg. | |
| $ffc0-ffdf SAM (Synchronous Address Multiplexer) register bits - use | |
| even address to clear, odd address to set | |
| $ffc0-ffc5 SAM VDG Mode registers V0-V2 | |
| $ffc0/ffc1 SAM VDG Reg V0 | |
| $ffc2/ffc3 SAM VDG Reg V1 | |
| $ffc3/ffc5 SAM VDG Reg V2 | |
| $ffc6-ffd3 SAM Display offset in 512 byte pages F0-F6 | |
| $ffc6/ffc7 SAM Display Offset bit F0 | |
| $ffc8/ffc9 SAM Display Offset bit F1 | |
| $ffca/ffcb SAM Display Offset bit F2 | |
| $ffcc/ffcd SAM Display Offset bit F3 | |
| $ffce/ffcf SAM Display Offset bit F4 | |
| $ffd0/ffc1 SAM Display Offset bit F5 | |
| $ffd2/ffc3 SAM Display Offset bit F6 | |
| $ffd4/ffd5 SAM Page #1 bit - in D64 maps upper 32K Ram to $0000 to $7fff | |
| $ffd6-ffd9 SAM MPU Rate R0-R1 | |
| $ffd6/ffd7 SAM MPU Rate bit R0 | |
| $ffd8/ffd9 SAM MPU Rate bit R1 | |
| $ffda-ffdd SAM Memory Size select M0-M1 | |
| $ffda/ffdb SAM Memory Size select bit M0 | |
| $ffdc/ffdd SAM Memory Size select bit M1 | |
| $ffde/ffdf SAM Map Type - in D64 switches in upper 32K RAM $8000-$feff | |
| $ffec-ffef PC-Dragon - Used by Paul Burgin's emulator to provide enhanced | |
| services | |
| $fff0-ffff 6809 interrupt vectors mapped from $bff0-$bfff by SAM | |
| $fff0:fff1 Reserved ($0000; D64 64K mode 0x3634 '64') | |
| $fff2:fff3 SWI3 ($0100) | |
| $fff4:fff5 SWI2 ($0103) | |
| $fff6:fff7 FIRQ ($010f) | |
| $fff8:fff9 IRQ ($010c) | |
| $fffa:fffb SWI ($0106) | |
| $fffc:fffd NMI ($0109) | |
| $fffe:ffff RESET ($b3b4; D64 64K mode $c000 - never accessed) | |
| $8000-8002 Hardware Initialisation (JMP $bb40; D64 JMP $bb3c) | |
| $8003-8005 Software Initialisation (JMP $bb88) | |
| $8006-8008 %POLCAT% Scans keyboard, rets value in A (JMP $bbe5) | |
| Called indirectly from [$a000] | |
| $8009-800b %CBLINK% Cursor Blink (JMP $bbb5) | |
| $800c-800e %CHROUT% Write chr in A to screen (JMP $bcab) | |
| $800f-8011 %LPOUT% Line printer character output in A reg., forces | |
| end-of-line sequences, outputs extra spaces to cause | |
| LFs etc. See: $0099-009c, $0148 (JMP $bd1a) | |
| $8012-8014 Reads Joystick (JMP $bd52) | |
| Called indirectly from [$a00a] | |
| $8015-8017 Cassette relay on (JMP $bdcf) | |
| $8018-801a Cassette relay off (JMP $bddc) | |
| $801b-801d Write leader to cassette (JMP $be68) | |
| Called indirectly from [$a00c] | |
| $801e-8020 Output byte in A to cassette (JMP $be12) | |
| $8021-8023 Cassette on, init for reading (JMP $bde7) | |
| Called indirectly from [$a004] | |
| $8024-8026 Input byte from cassette into A (JMP $bdad) | |
| $8027-8029 Get one bit from cassette to CC.C (JMP $bda5) | |
| $802a-802c Reads a byte from serial port (JMP $be7b) | |
| $802d-802f Sends a byte to serial port (D32 JMP $be7c; D64 JMP $be98) | |
| $8030-8032 Set serial port baud rate (D32 JMP $be7d; D64 JMP $bea6) | |
| $8033-8153 Reserved words table | |
| $8154-81c9 Reserved words dispatch table (Tokens 0x80-0xba only) | |
| $81ca-824f Function words table | |
| $8250-8293 Function words dispatch table | |
| $8294-82a8 Another dispatch table: | |
| 0x79, $910e + | |
| 0x79, $9105 - | |
| 0x7b, $9275 * | |
| 0x7b, $933c / | |
| 0x7f, $96a0 ^ | |
| 0x50, $8a12 AND | |
| 0x46, $8a11 OR | |
| The related functions come from {2, p.347} | |
| $82a9-82de Error code table | |
| $82df-82e5 ' ERROR', 0x00 | |
| $82e6-82ea ' IN ', 0x00 | |
| $82eb-82ef 0x0d, 'OK', 0x0d, 0x00 | |
| $82f0-82f6 0x0d, 'BREAK', 0x00 | |
| $8344 System Error - generates error message according to B | |
| (CoCo $ac46) | |
| $8371 Prints OK prompt and returns to Command mode (CoCo $ac73) | |
| $83ed BasVect2 - completes init once BASIC program loaded | |
| (CoCo $acef) | |
| $8415 NEW token dispatch address | |
| $8417 Erases program in memory same as NEW (CoCo $ad19) {1} | |
| Called from BASIC init routine ($b3ba) | |
| $841f BasVect1 - sets up various vectors after a BASIC program | |
| loaded (CoCo $ad21) | |
| $8434 Resets stack - all entries are lost (CoCo $ad33) | |
| $8448 FOR token dispatch address | |
| $849f RUN BASIC - runs BASIC program in mem used by Autorun | |
| programs (CoCo $ad9e) | |
| $8514 RESTORE token dispatch address | |
| $852b Waits for key press, returns key in A (CoCo $adfb) | |
| $8532 END token dispatch address | |
| $8539 STOP token dispatch address | |
| $8560 CONT token dispatch address | |
| $8571 CLEAR token dispatch address | |
| $85a5 RUN token dispatch address | |
| $85b9 GO token dispatch address | |
| $85f3 RETURN token dispatch address | |
| $8613 DATA token dispatch address | |
| $8616 REM, ', ELSE token dispatch address | |
| $8647 IF token dispatch address | |
| $8675 ON token dispatch address | |
| $86bc LET token dispatch address | |
| $8705-870b '?REDO', 0x0d, 0x00 | |
| $872b INPUT token dispatch address | |
| $8777 READ token dispatch address | |
| $8829 NEXT token dispatch address | |
| $8877 Get expression: evaluates next expression and puts VARPTR | |
| addr in $0052:0053 (CoCo $b146) | |
| $8887 Get string: compiles a string and puts it in free string | |
| space (CoCo $b156) | |
| $89a4 CkClBrak: checks cmd line for closed bracket (CoCo $b267) | |
| $89a7 CkOpBrak: checks cmd line for open bracket (CoCo $b26a) | |
| $89aa CkComa: checks next cmd line chr for a comma, if not a Syntax | |
| error is generated (CoCo $b26d) | |
| $89ac CkChar: as for CkComa but checks for chr in B (CoCo $b26f) | |
| $89b4 Both reserved word and function dispatch tables of Stub 1 | |
| at $012a point here | |
| $8a11 OR operator dispatch address (see $8294) | |
| $8a12 AND operator dispatch address (see $8294) | |
| $8a8b DIM token dispatch address | |
| $8a94 %GETVAR% gets VARPTR addr of following variables name | |
| (CoCo $b357) | |
| $8b29 %GETUSR% returns value of arg in USR fn in D (CoCo $b3e9) | |
| $8b2d %INTCNV% | |
| $8b30 Passes parameters to machine code routine {1} | |
| $8b39 Used to pass back values from m/c to BASIC {1} | |
| $8b8d-$8b91 Jump to this causes ?FC ERROR | |
| $8c31 MEM function token dispatch address | |
| $8c35-8c3f Assign16Bit: assigns D to numeric variable (CoCo $b4f2) | |
| ?? 8c35:8c36 is a BRN | |
| $8c36-8c3f Assign8Bit: assigns B to numeric variable (CoCo $b4f3) | |
| clears A, stores D in FAC | |
| $8c37-8c3f %GIVABF% returns D as 16bit val in FAC | |
| $8c40 STR$ function token dispatch address | |
| $8cd7 Forces String space Garbage collection (CoCo $b591) | |
| $8d9a Sub - | |
| $8d9f %DELVAR% frees space taken by variable (CoCo $b659) | |
| $8dc7 LEN function token dispatch address | |
| $8dd2 CHR$ function token dispatch address | |
| $8de6 ASC function token dispatch address | |
| $8df1 LEFT$ function token dispatch address | |
| $8e0e RIGHT$ function token dispatch address | |
| $8e15 MID$ function token dispatch address | |
| $8e51 Get8Bit: returns value of following number in B (CoCo $b70b) | |
| $8e5c VAL function token dispatch address | |
| $8e83 Get16Bit: returns value of following number in X (CoCo $b73d) | |
| $8e96 PEEK function token dispatch address | |
| $8e9d POKE token dispatch address | |
| $8ea4 LLIST token dispatch address | |
| $8eaa LIST token dispatch address, List Basic to DEVN | |
| (CoCo $b764) | |
| $903d PRINT token dispatch address | |
| $90a1 Print CR/LF: moves cursor posn to start of new line | |
| (CoCo $b958) | |
| $90e5 Out String: Prints ASCIIZ string ptd to by X to DEVN | |
| (CoCo $b99c) | |
| $9105 - operator dispatch address (see $8294) | |
| $910e + operator dispatch address (see $8294) | |
| $923c LOG function token dispatch address | |
| $9275 * operator dispatch address (see $8294) | |
| $933c / operator dispatch address (see $8294) | |
| $93bf-93d4 %MOVFM% Converts a 5-byte BASIC Real variable structure | |
| pointed to by X to FAC at $004f {2} | |
| $9425 SGN function token dispatch address | |
| $942d Jumped to from GIVABF routine at 8c37-8c3f - returns 16 | |
| bit value in FAC to BASIC ?? | |
| $943e ABS function token dispatch address | |
| $9499 INT function token dispatch address | |
| $9564-9568 5 byte floating point number | |
| $9569-956d 5 byte floating point number | |
| $956e-9572 5 byte floating point number | |
| $957a Print Number: outputs D as number to DEVN (CoCo $bdcc) | |
| $9697 SQR function token dispatch address | |
| $96a0 ^ operator dispatch address (see $8294) | |
| $9713 EXP function token dispatch address | |
| $9772 RND function token dispatch address | |
| $978e Random Number: generates 8bit random number in $0116 | |
| $97cb COS function token dispatch address | |
| $97d1 SIN function token dispatch address | |
| $9816 TAN function token dispatch address | |
| $9877 ATN function token dispatch address | |
| $98e3 Called from BASIC init routine ($b3ba-) | |
| $9956 FIX function token dispatch address | |
| $9965 EDIT token dispatch address | |
| $9ad9 TRON token dispatch address | |
| $9ada TROFF token dispatch address | |
| $9ade POS function token dispatch address | |
| $9af4 VARPTR function token dispatch address | |
| $9b84 STRING$ function token dispatch address | |
| $9bb4 INSTR function token dispatch address | |
| $9c3e Assign16BitB: assigns value in $0052:0053 to a variable | |
| (CoCo $880e) | |
| $9c81 DEF token dispatch address | |
| $9d00-9d0c Sub | |
| $9d0d-9d1c Sub which returns a ptr in X to the address in the USR table | |
| (ref'd by $00b0:00b1) of the USR function to be called | |
| $9d1d USR function token dispatch address | |
| $9d35-9d3c Sub which checks for '=' token, then gets value of next expression | |
| by JMPing to $8e83 | |
| $9d3d IRQ interrupt service routine | |
| $9d59 TIMER function token dispatch address | |
| $9d61 DEL token dispatch address | |
| $9dfa RENUM token dispatch address | |
| $9fca-9fcd 3 bytes Unused ? 'UL ' | |
| $9fce-9fff D32 - Unused 0x00 | |
| $9fd0-9fd8 D64 - Patch to support VARPTRs >32K | |
| $9fd9-9fff D64 - Unused 0x00 | |
| $a000-a00d Indirect jump table | |
| $a000:a001 Keyboard input ($8006) | |
| $a002:a003 Character output in A to DEVNUM ($b54a) | |
| $a004:a005 Cassette on for reading ($8021) | |
| $a006:a007 Block input from tape ($b93e) | |
| $a008:a009 Block output to tape ($b999) | |
| $a00a:a00b Joystick input ($8012) | |
| $a00c:a00d Write leader to cassette ($801b) | |
| $a00e HEX$ function token dispatch address | |
| $a049 DLOAD token dispatch address | |
| $a0e0 Can be used to wait for 2 keypresses {1} | |
| $a0ea Waits for keypress with flashing cursor (CoCo $8cc6) | |
| $a0f4 Sub: called from DLOAD routine | |
| $a438-a440 Sub - returns CC.C set if A is not char '0'-'9' | |
| $a6ef PSET token dispatch address | |
| $a6f3 PRESET token dispatch address | |
| $a6c7 PPOINT function token dispatch address | |
| $a749 LINE token dispatch address | |
| $a8c0 PCLS token dispatch address | |
| $a8c7 Clear Graphics: Clears current graphics screen with data | |
| in B (CoCo $9539) | |
| $a8d4 COLOR token dispatch address | |
| $a928 Set Colours: sets up locations $00b4, $00b5 (CoCo $959a) | |
| $a938 Select Display: Selects Text (CC.Z=1) or Graphics (CC.Z=0) | |
| mode (CoCo $95aa) | |
| $a93a Reset VDU: resets default VDU mode (CoCo $95ac) | |
| $a989 Set VDG Mode given in A (CoCo $95fb) | |
| $a99d Set VDG Offset for graphics mode (CoCo $960f) | |
| $a9a4 Set VDG Colour set from $00c1 (CoCo $9616) | |
| $a9af PMODE token dispatch address | |
| $a9e1 Set Page to B (CoCo $9653) | |
| $a9fe SCREEN token dispatch address | |
| $aa10 Select Colour set 0 or 1 from B (CoCo $9682) | |
| $aa19 PCLEAR token dispatch address | |
| $aa23 Reserve HiRes Graphics RAM, moves BASIC if nec. (CoCo $9695) | |
| $aa81 Called from BASIC init routine ($b3ba-) | |
| $aabe PCOPY token dispatch address | |
| $aada-aaef Sub - reads and checks PCOPY page numbers | |
| $aaf0 GET token dispatch address | |
| $aaf3 PUT token dispatch address | |
| $abd4-abec 5 entry table of form Word, Word, Token for matching PUT mode | |
| $ac87 PAINT token dispatch address | |
| $adbd PLAY token dispatch address | |
| $ae9a Play Note: A contains ASCII code (CoCo $9ad7) | |
| $af33 Sub - gets next PLAY cmd in A | |
| $afd9 PLAY IRQ routine - branches to $bb02 if $00e3 == 0x0000 | |
| $aff6-affc Table maps PLAY notes A-G to tone number | |
| $affd-b014 Table | |
| $b015-b050 Table | |
| $b051 DRAW token dispatch address (CoCo $9cb6) | |
| $b238 CIRCLE token dispatch address | |
| $b39b-b3b3 Called after Hardware init routine, following a RESET | |
| Inits stack, checks for Cold/warm start. If $0071 contains | |
| 0x55 and $0072:0073 points to NOP then execution is passed | |
| to [$0072:0073] otherwise branches to $b3ba | |
| $b3b4-b3b9 RESET interrupt service routine (CoCo $a027) | |
| Loads Y with $b39b and JMPs $8000 | |
| $b3ba Cold start routine - clears lo mem, inits BASIC | |
| $b400 Boot Basic: Restarts BASIC interpreter (CoCo $a0b6) | |
| $b432-b43b Checks for $c000:c001 = 0x444b ('DK') and branches to $c002 if | |
| found | |
| $b44f Warm start RESET jumps here | |
| $b469-b46e FIRQ interrupt service routine - branches to $b46f if source | |
| was cartridge else RTI | |
| $b46f-b47a Calls $b480 twice, then JMPs to $8000 with Y = $b47b | |
| $b47b-b47f CLRs $0071, then JMPs $c000 to start cartridge | |
| $b480-b486 Loads X from $008a (0x0000) and decrements to 0x0000 | |
| Gives 524,298 cycle, approx. 590ms delay | |
| $b487-b494 14 bytes copied to $009d-$00aa at startup | |
| $b495-b4b2 30 bytes copied to $010c-$0129 at startup | |
| $b4b3-b4cc '(C) 1982 DRAGON DATA LTD ', 0x0d | |
| $b4cd-b4ec '16K BASIC INTERPRETER 1.0 ', 0x0d | |
| $b4ed-b504 '(C) 1982 BY MICROSOFT', 0x0d, 0x0d, 0x00 | |
| $b505 Waits for key with cursor ? Called from SuperDos E6 ROM | |
| $b54a %OUTCHR% Sends char in A to DEVN (CoCo $a282) | |
| Called indirectly from [$a002] | |
| $b64c CLOSE token dispatch address | |
| $b65f Close files: closes an open tape stream (CoCo $a42d) | |
| $b682 CSAVE token dispatch address | |
| $b6d4 CLOAD token dispatch address | |
| $b6a5 Write BASIC: writes BASIC program to cassette (CoCo $a469) | |
| $b714 Loads a headerless program from cassette {10} | |
| $b748 Read Binary file from tape (CoCo $a511) | |
| $b770 EXEC token dispatch address | |
| $b796 INKEY$ function token dispatch address | |
| $b7cc Copy B bytes from X to U | |
| $b800 EOF function token dispatch address | |
| $b81e SKIPF token dispatch address | |
| $b828 OPEN token dispatch address | |
| $b8b3 Find File: searches tape for matching filename (CoCo $a681) | |
| $b933 Read 1st Block: reads filename block to cas. buf (CoCo $a701) | |
| $b93e %BLKIN% reads a block of data into cas. buffer (CoCo $a70b) | |
| Called indirectly from [$a006] | |
| $b981 MOTOR token dispatch address | |
| $b991 Write 1st Block (CoCo $a7e5) | |
| $b999-b9d1 %BLKOUT% writes a block of data to cassette (CoCo $a7f4) | |
| Called indirectly from [$a008] | |
| $b9cd-b9d1 Write byte 0x55 to cassette by JMPing to $801e | |
| $b9cf-b9d1 JMPs to $801e to write byte in A | |
| $b9d2 SET token dispatch address | |
| $b9df Set LoRes Pixel: X contains screen addr, B the colour and | |
| $00b8 the OR data (CoCo $a88d) | |
| $ba03 RESET token dispatch address | |
| $ba07 Reset LoRes Pixel: X contains screen addr, $00b8 OR data | |
| (CoCo $a8b5) | |
| $ba28 Calc LoRes Pixel Pos: Stack contains vert and horiz coords | |
| (CoCo $a8d9) | |
| $ba44 POINT function token dispatch address | |
| $ba5f CLS token dispatch address | |
| $ba77-ba85 Clears text screen (CoCo $a928) | |
| $ba79-ba85 Clears text screen with value in B (CoCo $a92a) | |
| $ba86-ba8d Clears screen, prints '(C) 1982 BY MICROSOFT' msg at $b4ec | |
| $ba9a SOUND token dispatch address | |
| $baa0 Produces Beep of length B, pitch in $008c (CoCo $a951) | |
| $bac3 Audio off: Disables sound (CoCo $a974) | |
| $bac5-bad3 Enables sound (CoCo $a976) | |
| $bad4-bade Reset DAC - writes (D32 0x7e; D64 0x7c) to D/A (CoCo $a985) | |
| $bad6-bade Writes A to DAC - bits 0,1 of A must be 0 (CoCo $a987) | |
| $badf AUDIO token dispatch address | |
| $baec AUDIO ON: B must be 0x00 on entry (CoCo $a99d) | |
| $baf1-bb01 Sub to init PIA for sound source output specified by the lower | |
| 2 bits of B - 00 = DAC, 01 = Tape input, 10 = External | |
| Cart source, 11 = none | |
| This code duplicates the function of $bd41-bd51, the only | |
| dif being an ASRB replacing a RORB | |
| $bb02-bb0c Interrupt service subroutine to decrement $008d:008e, returns | |
| with RTI | |
| $bb0d JOYSTK function token dispatch address | |
| $bb26-bb34 Jumped to from selfmodifying CHRGET routine at $009f | |
| $bb3c-bb87 D64 - Hardware init, JMPd to from $8000, Y should contain | |
| return address | |
| $bb40-bb87 D32 - Hardware init, JMPd to from $8000, Y should contain | |
| return address | |
| $bb80-bb82 D64 - Boots 64K mode with JMP $bf49 | |
| $bb88-bb9e Software init, JMPd to from $8003, | |
| inits $008f-009b, $0148-0150 with ROM defaults | |
| $bb92-bb94 D64 - patched to JSR $BEFF (CLR $03fd-03ff; LDU #$0148) | |
| $bb97-bb9e CopyXtoU - copies B bytes from X to U | |
| $bb9f-bbab default values for $008f-009b | |
| $bbac-bbb4 default values for $0148-0150 | |
| $bbb5-bbcc Flashes cursor, JMPd to from $8009 (CoCo $a199) | |
| $bbc5-bbcc Decrements X from 0x045e, gives 1ms delay | |
| $bbc8-bbcc Decrements X until 0 then returns | |
| $bbcd-bbd9 subroutine | |
| $bbe5-bbea %INCH% Scans keyboard, returns char in A, JMPd to from $8006 | |
| (CoCo $a1c1) | |
| $bbec Keyboard polling sub, returns key code in A | |
| $bca0 Clear VDU line from cursor posn (CoCo $a323) | |
| $bcab %OUTCH% Put char in A to screen, JMPd to from $800c | |
| (CoCo $a30a) | |
| $bcf5-bd09 %TXLPCH% Low level routine to print char in A (CoCo $) | |
| $bd0a PCRLF: moves print head to next line | |
| $bd1a Send char in A to printer, JMPd to from $800f (CoCo $a2bf) | |
| D64 - This routine uses Y as well and is source of a | |
| bug in the Clear-J fn of Visitext Word-Pro. | |
| $bd41-bd51 %SNDSEL% Selects Analogue Mux channel from B. Used to read | |
| Joysticks or set sound channel (CoCo $a9a2) | |
| 0x00 DAC / Right Joystick, x-axis | |
| 0x01 Cassette / Right Joystick, y-axis | |
| 0x02 Cartridge / Left Joystick, x-axis | |
| 0x03 Unused / Left Joystick, y-axis | |
| See also $baf1-bb01 | |
| $bd52 %JOYIN% Reads Joysticks updates $015a-015d, JMPd to from $8012 | |
| (CoCo $a9de) | |
| $bd8a-bd90 Increments $0082, samples Cassette input bit into CC.C | |
| $bd91-bd9d Sub | |
| $bd97-bd9d Sub | |
| $bd99-bd9d Sub | |
| $bd9e Sub | |
| $bda0 Sub | |
| $bda5 %BITIN% Get one bit from cassette to CC.C, JMPd to from $8027 | |
| (CoCo $a755) | |
| $bdad %CBIN% Input byte from cassette into A, JMPd to from $8024 | |
| (CoCo $a749) | |
| $bdb9 Sub | |
| $bdbf Sub | |
| $bdcf-bddb %CASON% Motor on - Turns on relay, loads X with delay value | |
| from $0095:0096 (0xda5c) then LBRAs to $bbc8, JMPd to from | |
| $8015 (CoCo $a7ca) | |
| $bddc-bde6 %CASOFF% Motor off - turns relay off, re-enables FIRQ, IRQ, | |
| JMPd to from $8018 (CoCo $a7eb) | |
| $bde7 %CSRDON% Read Leader - Disables FIRQ, IRQ, Cassette on, | |
| init for reading, JMPd to from $8021 (CoCo $a77c) | |
| $be12-be43 %CBOUT% Output byte in A to cassette, JMPd to from $801e | |
| (CoCo $a82a) | |
| $be44-be67 36 bytes of Sine Wave data in upper 5 bits of each byte. | |
| $be68-be7a %WRTLDR% disables FIRQ, IRQ, turns on cassette, writes number | |
| of leader bytes = 0x55 according to $0090:0091 (d32 0x0080), | |
| JMPd to from $801b Pre: B,Y Des: CC,A,X Ret: X=0x0000,A=0x55 | |
| $be7b D32 - JMPd to from $802a (RTS) | |
| $be7b-be97 D64 - Read byte from serial port to A, JMPd to from $802a | |
| $be7c D32 - JMPd to from $802d (RTS) | |
| $be7d-be7e D32 - JMPd to from $8030 (COMB; RTS) | |
| $be7f-bfef D32 - Unused area, all 0x00 | |
| $be98-bea5 D64 - Output byte in A to serial port, JMPd to from $802d | |
| $bea6-bebd D64 - Set baud rate in B, JMPd to from $8030 | |
| $bebe-bec4 D64 - Lookup table to map B to ACIA baud rate constant | |
| $bec5-beda D64 - Key scan which pauses printer during printing {8} | |
| $beff-bf0b D64 - Patched into Software init to CLR $03fd-03ff | |
| $bf0c-bf1f D64 - handles serial printer end of line delay | |
| $bf20-bf48 D64 - IRQ routine which can be hooked in D32 mode to | |
| provide 64 mode style auto-repeat and serial support | |
| $bf49-bf59 D64 - Copies 64 mode bootstrap code to $01da and JMPs | |
| EXEC points here at startup. | |
| $bf5a-bfe8 D64 - Bootstrap routine code copied to $01da-0268 | |
| $bf9c:bf9d D64 - '64' Can be used to check for D64 32k mode ROM | |
| $bfe9-bfef D64 - Unused 0x00 | |
| $bff0-bfff 6809 interrupt vectors mapped to $fff0-$ffff by SAM | |
| $bff0:fff1 Reserved ($0000) | |
| $bff2:bff3 SWI3 vector ($0100) | |
| $bff4:bff5 SWI2 vector ($0103) | |
| $bff6:bff7 FIRQ vector ($010f) | |
| $bff8:bff9 IRQ vector ($010c) | |
| $bffa:bffb SWI vector ($0106) | |
| $bffc:bffd NMI vector ($0109) | |
| $bffe:bfff RESET vector ($b3b4) | |
| """ | |
| print "MEM_INFO=(" | |
| for line in txt.split("\n$"): | |
| line = " ".join([i.strip() for i in line.split("\n")]) | |
| if not line.strip(): | |
| continue | |
| line = line.replace("\t", " ") | |
| try: | |
| raw_addr, txt = line.split(" ",1) | |
| except ValueError: | |
| print "****", line | |
| break | |
| raw_addr = raw_addr.strip() | |
| txt = txt.strip() | |
| raw_addr = raw_addr.replace("$", "") | |
| #~ print "| %s | %s |" % (raw_addr, txt) | |
| assert len(raw_addr) in (4,9) | |
| l = len(raw_addr) | |
| if l == 4: | |
| start = raw_addr | |
| end = start | |
| elif l == 9: | |
| start = raw_addr[:4] | |
| end = raw_addr[-4:] | |
| else: | |
| raise ValueError | |
| #~ print start, end, txt | |
| start = int(start,16) | |
| end = int(end,16) | |
| #~ print start, end, txt | |
| print ' (%s, %s, "%s"),' % (hex(start), hex(end), txt) | |
| print ")" |
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