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PsL Monthly 1994 December
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PSL Monthly Shareware CD-ROM (Public Software Library)(December 1994).bin
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prgmming
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dos
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asm
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prhex.asm
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Assembly Source File
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1985-03-20
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943b
|
45 lines
;------WRITE_HEX------------------------------
; Displays 4 hexadecimal numbers contained in AX
; Entry:
; AX ==> 4 Hex numbers
; Exit:
; All regs but AX restored
;----------------------------------------------
Write_HEX PROC
push bx ;Save regs
push cx
push dx
mov bx, ax
mov cx, 12
shr ax, cl
call pr_one_hex
mov ax, bx
mov cx, 8
shr ax, cl
call pr_one_hex
mov ax, bx
mov cx, 4
shr ax, cl
call pr_one_hex
mov ax, bx
call pr_one_hex
pop dx
pop cx
pop bx
ret
pr_one_hex: and ax, 000Fh ;Mask LSD
cmp ax,9
ja wa20
add ax, '0'
jmp wa30
wa20: add ax, 'A'-10
wa30: mov dx, ax
@doscall 02h ;Print the char
ret
Write_HEX ENDP