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ALIB30B
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CONV23.ASM
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Assembly Source File
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1994-10-15
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2KB
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73 lines
page 66,132
;******************************** CONV23.ASM *********************************
LIBSEG segment byte public "LIB"
assume cs:LIBSEG , ds:nothing
;----------------------------------------------------------------------------
.xlist
include mac.inc
include common.inc
.list
comment
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -( CONVERT )
;DWORD_TO_HEX_STDOUT - display byte as decimal to stdout
;
; input: dx,ax = binary value
; output: ascii hex to stdout
;* * * * * * * * * * * * * *
public dword_to_hex_stdout
DWORD_TO_HEX_STDOUT PROC FAR
push ax
xchg ax,dx
call word_to_hex_stdout
pop ax
DWORD_TO_HEX_STDOUT ENDP
comment
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -( CONVERT )
;WORD_TO_HEX_STDOUT - display word as decimal to stdout
;
; input: ax = binary value
; output: ascii hex to stdout
;* * * * * * * * * * * * * *
public WORD_TO_HEX_STDOUT
WORD_TO_HEX_STDOUT proc far
push ax
xchg ah,al
call BYTE_TO_HEX_STDOUT
pop ax
WORD_TO_HEX_STDOUT ENDP
comment
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -( CONVERT )
;BYTE_TO_HEX_STDOUT - display byte as decimal to stdout
; display data byte as two hex ascii characters
; inputs: al=data
; output: registers ax,dx changed
;* * * * * * * * * * * * * *
PUBLIC BYTE_TO_HEX_STDOUT
BYTE_TO_HEX_STDOUT PROC FAR
mov ah,0
mov dl,10h
div dl
call local_proc
mov al,dh
BYTE_TO_HEX_STDOUT ENDP
local_proc proc far
cmp al,0Ah
sbb al,69h
das
xchg ax,dx
mov ah,2
int 21h
retf
local_proc endp
LIBSEG ENDS
end