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elks-enhanced

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Owner: themasterBranch: masterCommits: 6893Updated: 2026-04-19 00:15

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elks-enhanced / elks / arch / i86 / lib / unused / inportb.s

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! int inb( int port );
! reads a byte from the i/o port  port  and returns it

	.globl	_inb
	.text
	.even

_inb:
	pop	bx
	pop	dx
	dec	sp
	dec	sp
	in	dx
	sub	ah,ah
	jmp	bx

! int inb( int port );
! reads a byte from the i/o port  port  and returns it. Uses an in
! from port 0x80 to slow the process down.

	.globl	_inb_p
	.text
	.even

_inb_p:
	pop	bx
	pop	dx
	dec	sp
	dec	sp
	in	0x80
	in	dx
	sub	ah,ah
	jmp	bx

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