c_uloth@vaxa.cc.uwa.oz.au (08/18/90)
Can anyone tell me how to test the carry bit on a PC386 using Zortech's C++? Thank's Chris Department of Architecture University of Western Austalia "Is there life beyond the Darling Scarp?"
bright@Data-IO.COM (Walter Bright) (08/21/90)
In article <1990Aug18.145135.2074@vaxa.cc.uwa.oz.au> c_uloth@vaxa.cc.uwa.oz.au writes:
<Can anyone tell me how to test the carry bit on a PC386 using Zortech's C++?
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Function to determine if carry is set.
; extern int _cdecl iscarryset();
; Returns:
; !=0 carry is set
; 0 carry is clear
include macros.asm
begcode iscarryset
c_public iscarryset
func iscarryset
sbb AX,AX
ret
c_endp iscarryset
endcode iscarryset
end