nitro2k01

def put_16bit(rom,addr,value):
    rom[addr] = value & 0xff
    rom[addr+1] = (value>>8) & 0xff

def put_16bit_be(rom,addr,value):
    rom[addr] = (value>>8) & 0xff
    rom[addr+1] = value & 0xff


def patch_rom(in_file,out_file,byte_value):

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SGB_SEND_PACKET_new::
	ld	BC,16+1			; B=0, C=SGB packet length in bytes, +1 .
	xor	A			; A=0, also clear carry.
	ldh	[rP1],A			; Send start bit.

.bitloop
	ld	A,$30
	ldh	[rP1],A			; Send idle state.
.bitloop_into
	rr	B			; Get next bit, plus zero check.

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FORMAT: MACRO
        ld hl, \1
        ld de, \2
        ld  d, d
        jr .end\@
        DW $6464
        DW $0200
.end\@:
        ENDM

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        ld      B,A     ; Store untouched copy DULRSsBA
        and     $A0     ; Mask out D0L00000
        rrca            ; Rotate right 0D0L0000
        ld      C,A     ; Store 0D0L0000 for later.
        ld      A,B     ; Restore unmodified copy.
        and     $F0     ; Mask out DULR0000
        add     B       ; Shift only upper nibble left.
        ; A  DULR0000
        ; B +DULRSsBA
        ;   =ULR0SsBA

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    xor  a
    ldh  [$FF40],a      ; Disable LCD as early as possible
    ld   hl,.hram_payload_start
    ld   c,$80          ; Bottom of HRAM
.copyloop
    ldi  a,[hl]
    ld   [$ff00+c],a
    inc  c
    jr   nz,.copyloop
    jp   $FF80

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1) xx Ernst-Erich Stender - Fantasia et Fuga, BWV 542: Fuga (no)
2) Klaus Wunderlich - Hammond Pops - 06 - Bounce-Shuffle Medley
3) xx Galaxy Racer - Inside the Atmosphere (noooo)
4) xx London Music Works - Cornfield Chase (noooo) Pixel Tricks - Story of the Cherry Tree (noooo)
5) Nils Dacke - Mah-na-ma-na (yes!)
6) The Golden Nightingale Orchestra - La Bamba
7) xx Munk & Lizzie Paige - Southern Moon (Hnny Remix) (noooo)
8) Klaus Wunderlich - Die Lustige Weiber Von Windsor (yes!)
9) The Golden Nightningale Orchestra - Clarient Polka (yes!)
10) xx Suchard - The Halloween Street (noooo)

nitro2k01

; GBDK abs function
; Original rewrite by JL2210
; int abs(int)
_abs::
    ; first word is return address
    ; second is argument
    pop     hl      ; 3
    pop     de      ; 3 make copy of de
    push    de      ; 4 but leave it on the stack for the caller to clean up
    ld      a, d    ; 1

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[MENU]
MENUITEM=WIN, Windows
MENUITEM=GRUB, GRUB

[GRUB]
DEVICE=C:\GRUB.EXE 

[WIN]
; The original contents of config.sys go here.

nitro2k01

from big_ol_pile_of_manim_imports import *
from math import sin

def cos_product_approximation(order):
    return lambda x : np.prod([x]+[
        np.cos(x/(2**k)) 
        for k in range(1,order+2)
    ])

class ExampleApproximation(GraphScene):

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; Input conditions:
; HL contains the upper byte of the 16 bit variable.
; HL+1 contains the lower byte of the 16 bit variable.

    LD  A,[HL+]     ; A now contains the upper byte. HL contains a pointer to the lower byte.
    RL  [HL]        ; Extract the upper bit of the lower byte into the carry flag.
                    ; Pseudo-C: carry = (LOWER & 0x80) ? 1 : 0;
    ADC A,A         ; ADD A,A is equivalent to a 1 bit left shift.
                    ; ADC A,A (add carry) is equivalent to a 1 bit left shift which also shifts in carry into the lowest bit.
                    ; Pseudo-C: LOWER = (UPPER<<1)|carry;