outhexb.asm

来自「web51的开发库」· 汇编 代码 · 共 21 行

;
; Print Hex digit from Acc to serial port
;
;extrn	CODE(putchar)
	.global	OutHexb
	.global	PNibl

	.text
OutHexb:
	PUSH	ACC
	SWAP	A
	LCALL	PNibl
	POP	ACC
PNibl:	ANL	A,#0x0F
	ADD	A,#0x90
	DA	A
	ADDC	A,#0x40
	DA	A
	LJMP	putchar
	;; END