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Line 29... |
#include "cglbdec.h"
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#include "cglbdec.h"
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AMODE *GenerateShift(ENODE *node,int flags, int size, int op)
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AMODE *GenerateShift(ENODE *node,int flags, int size, int op)
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{
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{
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AMODE *ap1, *ap2;
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AMODE *ap1, *ap2, *ap3;
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ap1 = GenerateExpression(node->p[0],F_REG,size);
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ap1 = GenerateExpression(node->p[0],F_REG,size);
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ap2 = GenerateExpression(node->p[1],F_REG | F_IMMED,8);
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ap2 = GenerateExpression(node->p[1],F_REG | F_IMMED,8);
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switch(op) {
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switch(op) {
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case op_shru:
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case op_shru:
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| Line 51... |
Line 51... |
case 32: GenerateTriadic(op_sext32,0,ap1,ap1,NULL); break;
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case 32: GenerateTriadic(op_sext32,0,ap1,ap1,NULL); break;
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default: ;
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default: ;
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}
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}
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break;
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break;
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}
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}
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ap3 = GetTempRegister();
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if (ap2->mode==am_immed) {
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if (ap2->mode==am_immed) {
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switch(op)
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switch(op)
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{
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{
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case op_shl: op = op_shli; break;
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case op_shl: op = op_shli; break;
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case op_shr: op = op_shri; break;
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case op_shr: op = op_shri; break;
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case op_shru: op = op_shrui; break;
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case op_shru: op = op_shrui; break;
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}
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}
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GenerateTriadic(op,0,ap1,ap1,make_immed(ap2->offset->i));
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GenerateTriadic(op,0,ap3,ap1,make_immed(ap2->offset->i));
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}
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}
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else
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else
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GenerateTriadic(op,0,ap1,ap1,ap2);
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GenerateTriadic(op,0,ap3,ap1,ap2);
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ReleaseTempRegister(ap1);
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ReleaseTempRegister(ap2);
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ReleaseTempRegister(ap2);
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MakeLegalAmode(ap1,flags,size);
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MakeLegalAmode(ap3,flags,size);
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return ap1;
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return ap3;
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}
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}
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/*
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/*
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* generate shift equals operators.
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* generate shift equals operators.
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