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11 lines
267 B
11 lines
267 B
require_extension('P');
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require_rv32;
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sreg_t val = (sreg_t)P_RS1_PAIR;
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uint32_t shamt = insn.shamtd();
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sreg_t result;
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if (shamt == 0) {
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result = P_SAT(32, val);
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} else {
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result = P_SAT(32, (val >> shamt) + ((val >> (shamt - 1)) & 1));
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}
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WRITE_RD(sext32(result));
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