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https://github.com/sehugg/8bitworkshop.git
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37 lines
638 B
NASM
37 lines
638 B
NASM
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; Hello World example
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; ROM routine for character output
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CHPUT: equ $00A2
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; waste space @ 0x0000 - 0x3fff
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org 0x0000
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db 0
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ds 0x3fff
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; MSX cartridge header @ 0x4000 - 0x400f
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dw 0x4241
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dw Init
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dw Init
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dw 0
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dw 0
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dw 0
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dw 0
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dw 0
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; initialize and print message
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Init:
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ld hl, msg
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call puts
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jp Init ; loop forever
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puts: ; print 0-terminated string in HL
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ld a,(hl)
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or a
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ret z
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call CHPUT ; displays one character in A
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inc hl
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jr puts
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; ASCII message + CR LF
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msg: defm "Hello, world!",13,10,0
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