snes-asm/homebrew-tutorial/header.asm

31 lines
634 B
NASM
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2022-06-13 16:00:17 -07:00
.segment "HEADER"
.byte "GNOSTIKKA " ; ROM name, must be 21 chars
.byte $30 ; Map Mode: 3.58MHz LoROM
.byte $00 ; Cartridge Type: ROM only
.byte $08 ; ROM Size
.byte $00 ; RAM size
.byte $01 ; Destination Code: USA
.byte $33 ; Fixed value
.byte $00 ; Mask ROM Version
.word $0000 ; Complement Check
.word $0000 ; Check Sum
; native mode vectors
.word 0, 0
.addr _rti ; COP
.addr _rti ; BRK
.addr _rti ; ABORT
.addr nmi ; NMI
.addr start ; RST
.addr _rti ; IRQ
; emulation mode vectors - largely unused, since we run in native mode
.word 0, 0
.addr 0
.addr 0
.addr 0
.addr 0
.addr start ; RST
.addr 0