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https://github.com/hsoft/collapseos.git
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43 lines
649 B
NASM
43 lines
649 B
NASM
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.equ RAMSTART 0x8000
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.equ RAMEND 0xffff
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.equ ACIA_CTL 0x80 ; Control and status. RS off.
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.equ ACIA_IO 0x81 ; Transmit. RS on.
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.equ KBD_PORT 0x08
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jp init
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; interrupt hook
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.fill 0x38-$
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jp aciaInt
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#include "err.h"
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#include "core.asm"
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#include "parse.asm"
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.equ ACIA_RAMSTART RAMSTART
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#include "acia.asm"
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.equ KBD_RAMSTART ACIA_RAMEND
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#include "kbd.asm"
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.equ STDIO_RAMSTART KBD_RAMEND
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#include "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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#include "shell.asm"
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init:
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di
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; setup stack
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ld hl, RAMEND
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ld sp, hl
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im 1
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call aciaInit
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ld hl, kbdGetC
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ld de, aciaPutC
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call stdioInit
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call shellInit
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ei
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jp shellLoop
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