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47 lines
812 B
NASM
47 lines
812 B
NASM
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; named shell_.asm to avoid infinite include loop.
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RAMSTART .equ 0x4000
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RAMEND .equ 0x5000
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STDIO_PORT .equ 0x00
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jr init
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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 shellInit
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jp shellLoop
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#include "core.asm"
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.define STDIO_GETC call emulGetC
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.define STDIO_PUTC call emulPutC
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STDIO_RAMSTART .equ RAMEND
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#include "stdio.asm"
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BLOCKDEV_RAMSTART .equ STDIO_RAMEND
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BLOCKDEV_COUNT .equ 1
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#include "blockdev.asm"
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; List of devices
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.dw emulGetC, emulPutC, 0, 0
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#include "blockdev_cmds.asm"
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SHELL_RAMSTART .equ BLOCKDEV_RAMEND
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.define SHELL_IO_GETC call blkGetCW
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.define SHELL_IO_PUTC call blkPutC
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SHELL_EXTRA_CMD_COUNT .equ 2
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#include "shell.asm"
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.dw blkBselCmd, blkSeekCmd
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emulGetC:
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; Blocks until a char is returned
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in a, (STDIO_PORT)
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cp a ; ensure Z
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ret
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emulPutC:
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out (STDIO_PORT), a
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ret
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