File:  [Power 6/32 Unix Tahoe 4.2BSD] / cci / sys / tahoe / Aemul.c
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs
Sun Jul 28 12:30:01 2019 UTC (7 years ago) by root
Branches: bsd, MAIN
CVS tags: v121, HEAD
Power 6/32 Unix version 1.21


#include "../machine/alignment.h"
emul(infop)	process_info *infop;
/*
/*	Extended precision multiplication.
/*
/***************************************/
{
	register long Register_12;	/* multiplicand */
	register long Register_11;	/* product least */
	register long Register_10;	/* product most */
	register long Register_9;	/* addend */
	register long Register_8;	/* multiplier */
	quadword result;

	Register_8 = operand(infop, 0)->data;
	Register_12 = operand(infop, 1)->data;
	Register_9 = operand(infop, 2)->data;
	Register_10=psl;
	Set_psl(r10);	/* restore the user psl */
	asm ("	emul	r8,r12,r9,r10");
	asm ("	movpsl	r8");
	New_cc (Register_8);
	result.high = Register_10;
	result.low  = Register_11;
	write_quadword (infop, result, operand(infop, 3));
}

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