2019-06-30 04:25:18 +10:00
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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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2019-10-07 05:32:23 +11:00
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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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2019-06-30 04:25:18 +10:00
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.equ ACIA_RAMSTART RAMSTART
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2019-10-07 05:32:23 +11:00
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.inc "acia.asm"
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2019-06-30 04:25:18 +10:00
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.equ KBD_RAMSTART ACIA_RAMEND
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2019-10-07 05:32:23 +11:00
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.inc "kbd.asm"
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2019-06-30 04:25:18 +10:00
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.equ STDIO_RAMSTART KBD_RAMEND
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2019-11-05 01:55:12 +11:00
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.equ STDIO_GETC kbdGetC
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.equ STDIO_PUTC aciaPutC
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2019-10-07 05:32:23 +11:00
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.inc "stdio.asm"
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2019-06-30 04:25:18 +10:00
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.equ SHELL_RAMSTART STDIO_RAMEND
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.equ SHELL_EXTRA_CMD_COUNT 0
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2019-10-07 05:32:23 +11:00
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.inc "shell.asm"
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2019-06-30 04:25:18 +10:00
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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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call aciaInit
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2019-07-01 04:16:00 +10:00
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call kbdInit
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2019-06-30 04:25:18 +10:00
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call shellInit
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jp shellLoop
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2019-07-20 05:45:13 +10:00
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KBD_FETCHKC:
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in a, (KBD_PORT)
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ret
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