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From: bright@Data-IO.COM (Walter Bright)
Newsgroups: comp.lang.c++
Subject: Re: Testing the carry bit using Zortech's C++
Message-ID: <2657@dataio.Data-IO.COM>
Date: 20 Aug 90 18:11:29 GMT
References: <1990Aug18.145135.2074@vaxa.cc.uwa.oz.au>
Organization: Data I/O Corporation; Redmond, WA
Lines: 20

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