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@Zer0xFF
Last active January 29, 2020 00:49
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jmp start
start:
; AL keep track of the result
MOV CL, 1 ; CL keeps track of the number we're dividing
MOV BL, 71; BL keep track of memory location
loop:
inc BL
inc CL
PUSH CL
POP AL
call 50
mov [BL], AL
cmp BL, 90
jnz loop
org 50
PUSH AL
POP DL
mod DL, 5 ; reminder of division by 5 should be 0, else not divisble by 5
cmp DL, 00
jz j_ret
mov AL, 00
j_ret:
ret
end
jmp start
ORG 4
db 01
db 50
db 44
db 60
db 64
db 2f
db 99; signed integer aka negative value
db 02
db 61
db 7E
start:
Mov AL, 4; AL specifies start location
MOV BL, D; specifies end location + 1
call 50
halt
org 50
PUSH AL ; we increment AL, so we'd like to back it up
PUSH BL ; we use BL for compare, so we back it up
PUSH BL ; we copy BL to DL, so we back it up, again
pop DL
mov CL, [AL]
; AL holds memory location
; BL hold AL memory value
; CL holds biggest value
; DL hold last memory location
next:
cmp DL, AL; checking to make sure we're still haven't passed allowed address
jz j_ret
inc AL
mov BL, [AL]
CMP BL, CL; BL - CL; if CL is bigger negative bit sets, check next value
JS next
; if we're here BL was bigger, move it to CL
push BL
POP CL
JMP next
j_ret:
POP BL
POP AL
ret
end
jmp start
db 40
db 60
db 5
ORG 5
iret
start:
MOV DL, C0
STI
loop:
OUT 07
jmp loop
ORG 40
CLI
push AL
PUSH BL
mov AL, [DL]
cmp AL, 23
jnz make_hash
mov AL, 20
jmp print_cursor
make_hash:
mov AL, 23
print_cursor:
mov [DL], AL
POP BL
POP AL
STI
iret
ORG 60
CLI
in 07
cmp AL, 0D
jz new_line
mov [DL], AL
inc DL
jmp j_ret
new_line:
mov AL, 20
mov [DL], AL
AND DL, F0
ADD DL, 10
j_ret:
STI
IRET
end
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