src/arm/disasm-arm.cc - Issue 223623003: Fix fixed-point vcvt_f64_s32 immediate value encoding

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Unified Diff: src/arm/disasm-arm.cc

Issue 223623003: Fix fixed-point vcvt_f64_s32 immediate value encoding (Closed) Base URL: git://github.com/v8/v8.git@master

Patch Set: Reorder bits for clarity Created 6 years, 9 months ago

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Index: src/arm/disasm-arm.cc

diff --git a/src/arm/disasm-arm.cc b/src/arm/disasm-arm.cc

index aa8ee22b73a3c4e7b92ea3312e7bd5b3da8bf96a..c918f90e9142d2f2c64b1e597e0c4f5fae4fc696 100644

--- a/src/arm/disasm-arm.cc

+++ b/src/arm/disasm-arm.cc

@@ -1272,7 +1272,7 @@ void Decoder::DecodeTypeVFP(Instruction* instr) {

} else if ((instr->Opc2Value() == 0xA) && (instr->Opc3Value() == 0x3) &&

(instr->Bit(8) == 1)) {

// vcvt.f64.s32 Dd, Dd, #<fbits>

- int fraction_bits = 32 - ((instr->Bit(5) << 4) | instr->Bits(3, 0));

+ int fraction_bits = 32 - ((instr->Bits(3, 0) << 1) | instr->Bit(5));

Format(instr, "vcvt'cond.f64.s32 'Dd, 'Dd");

out_buffer_pos_ += OS::SNPrintF(out_buffer_ + out_buffer_pos_,

", #%d", fraction_bits);

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