Return to Aaobleq.c CVS log

Up to [Power 6/32 Unix Tahoe 4.2BSD] / cci / sys / tahoe

Power 6/32 Unix version 1.21

#include "../machine/alignment.h" 
aobleq(infop)	process_info *infop;
/*
/*	Add one, branch if less or equal.
/*	Can't use real HW opcodes since we don't want to branch 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{negative_0; carry_1;}
	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;
}

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.