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C!T ROM 5
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ALIB30B
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MKEY13.ASM
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Assembly Source File
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1994-10-15
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1KB
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48 lines
page 66,132
;******************************** MKEY13.ASM *********************************
LIBSEG segment byte public "LIB"
assume cs:LIBSEG , ds:nothing
;----------------------------------------------------------------------------
.xlist
include mac.inc
include common.inc
.list
;----------------------------------------------------------------------------
extrn key_if_ready:far
comment
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -(MOUSE/KEY)
KEY_OR_MOUSE - waits for first keypress or mouse button click
;
; inputs: none
;
; output: AX = keycode, BX = mouse button
;
; note: If a keycode is found it is returned and the mouse status
; is not checked.
;* * * * * * * * * * * * * *
PUBLIC KEY_OR_MOUSE
KEY_OR_MOUSE PROC FAR
CALL KEY_IF_READY ;return ax=0(none) 1(key waiting)
XOR BX,BX
OR AX,AX
JNZ KOM_EXIT ;jmp if key waiting
MOV AX,0003
PUSH CX
PUSH DX
XOR BX,BX
INT 33h ;returns cx=column dx=row bx=button pressed (left=0001)
POP DX
POP CX
AND BX,+07
JZ KEY_OR_MOUSE ;jmp if no mouse clicks
XOR AX,AX
KOM_EXIT:
RETF
KEY_OR_MOUSE ENDP
LIBSEG ENDS
end