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https://github.com/hsoft/collapseos.git
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49 lines
735 B
NASM
49 lines
735 B
NASM
; 8K of onboard RAM
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.equ RAMSTART 0xc000
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; Memory register at the end of RAM. Must not overwrite
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.equ RAMEND 0xfdd0
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jp init
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.fill 0x66-$
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retn
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.inc "err.h"
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.inc "core.asm"
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.inc "parse.asm"
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.equ PAD_RAMSTART RAMSTART
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.inc "sms/pad.asm"
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.equ VDP_RAMSTART PAD_RAMEND
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.inc "sms/vdp.asm"
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.equ STDIO_RAMSTART VDP_RAMEND
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.inc "stdio.asm"
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.equ SHELL_RAMSTART STDIO_RAMEND
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.equ SHELL_EXTRA_CMD_COUNT 0
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.inc "shell.asm"
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init:
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di
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im 1
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ld sp, RAMEND
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call padInit
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call vdpInit
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ld hl, padUpdateSel
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ld (VDP_CHRSELHOOK), hl
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ld hl, padGetC
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ld de, vdpPutC
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call stdioInit
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call shellInit
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ld hl, vdpShellLoopHook
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ld (SHELL_LOOPHOOK), hl
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jp shellLoop
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.fill 0x7ff0-$
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.db "TMR SEGA", 0x00, 0x00, 0xfb, 0x68, 0x00, 0x00, 0x00, 0x4c
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