52 lines
840 B
C
52 lines
840 B
C
/*
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abCOpRr.c
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By: Jeremy Rand
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*/
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#include <stdio.h>
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#include "abCError.h"
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#include "abCMode.h"
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#include "abCStack.h"
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#include "expr/abCExpr.h"
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#include "expr/abCExprInt.h"
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#include "ops/abCOp.h"
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#include "ops/abCOpRr.h"
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#define RR_NAME "RR"
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static void rrExecute(void);
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void abCalcOpRrInit(void)
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{
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abCalcOpRegister(RR_NAME, rrExecute);
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}
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void rrExecute(void)
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{
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abCalcExpr result;
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int width;
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abCalcIntType bottomBit;
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AB_CALC_OP_ONE_ARG(RR_NAME);
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if (expr->type != abCalcExprTypeInt) {
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abCalcRaiseError(abCalcBadArgTypeError, RR_NAME);
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return;
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}
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width = abCalcModeGetIntWidth();
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bottomBit = (expr->u.integer & 1);
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abCalcExprIntSet(&result, ((expr->u.integer >> 1) | (bottomBit << (width - 1))));
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abCalcStackExprPop(NULL);
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abCalcStackExprPush(&result);
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}
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