File:  [Power 6/32 Unix Tahoe 4.2BSD] / cci / sys / tahoe / Aaoblss.c
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs
Sun Jul 28 12:30:04 2019 UTC (6 years, 11 months ago) by root
Branches: bsd, MAIN
CVS tags: v121, HEAD
Power 6/32 Unix version 1.21

#include "../machine/alignment.h" 
aoblss(infop)	process_info *infop;
/*
/*	Add one, branch if less than.
/*	Can't use real HW opcode, don't want to branch out of here !
/*
/*******************************************/
{
	register long limit, index, new_address, complement;

	limit = operand(infop,0)->data;
	index = operand(infop,1)->data;
	complement =  limit + ~index;
	if ( complement < 0){ carry_0; negative_1;}else{carry_1; negative_0;}
	if ( complement == 0) zero_1; else zero_0;
	overflow_0;
	write_back (infop,index+1, operand(infop,1));
	new_address = operand(infop,2)->address;
	if (!negative && !zero) pc = new_address;
}

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