Subversion Repositories Shiroi

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22 nishi 1 
; $Id: io.asm 22 2024-08-31 10:44:32Z nishi $
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	.area	_CODE
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;
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; ret=inp(port addr)
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;
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_inp::
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	ld	hl,#2
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	add	hl,sp
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;
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	ld	c,(hl)
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	in	a,(c)
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;
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	ld	l,a
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	ld	h,#0
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;
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	ret
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;
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; outp(port addr,param)
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;
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_outp::
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	push bc
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	ld	hl,#4
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	add	hl,sp
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;
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	ld	c,(hl)
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	inc	hl
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	ld	b,(hl)
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	out	(c),b
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;
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	pop 	bc
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	ret
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