58 lines
1.5 KiB
NASM
58 lines
1.5 KiB
NASM
; LoRom header.
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.MEMORYMAP
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SLOTSIZE $8000 ; The slot is $8000 bytes in size.
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DEFAULTSLOT 0 ; The SNES only has 1 slot.
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SLOT 0 $8000 ; Define's Slot 0's starting address.
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.ENDME
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.ROMBANKSIZE $8000 ; Every ROM bank is 32 KB in size.
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.ROMBANKS 8 ; 8 ROM banks = 2 Mb (256 KB).
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.SNESHEADER
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ID "SNES"
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NAME "PEW PEW " ; Program title. Should be 21 bytes long;
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; "123456789012345678901" ; use spaces for unused bytes of the name.
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SLOWROM
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LOROM
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CARTRIDGETYPE $00 ; $00 = ROM only.
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ROMSIZE $08 ; $08 = 2 Mbits.
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SRAMSIZE $00 ; No SRAM.
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COUNTRY $01 ; $01 = U.S.; $00 = Japan.
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LICENSEECODE $00
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VERSION $00 ; $00 = 1.00, $01 = 1.01, etc.
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.ENDSNES
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.SNESNATIVEVECTOR ; Native Mode interrupt vector table.
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COP EmptyHandler
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BRK EmptyHandler
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ABORT EmptyHandler
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NMI VBlankHandler
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IRQ EmptyHandler
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.ENDNATIVEVECTOR
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.SNESEMUVECTOR ; Emulation Mode interrupt vector table.
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COP EmptyHandler
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ABORT EmptyHandler
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NMI EmptyHandler
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RESET Start
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IRQBRK EmptyHandler
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.ENDEMUVECTOR
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; Defines the ROM bank and the slot it is inserted in memory.
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; .ORG 0 is really $8000, because the slot starts at $8000.
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.BANK 0 SLOT 0
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.ORG 0
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.SECTION "EmptyVectors" SEMIFREE
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EmptyHandler:
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rti
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.ENDS
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; Fills unused areas with $00.
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; This is the opcode for BRK, which will halt the SNES if executed.
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.EMPTYFILL $00 |