diff options
Diffstat (limited to 'src/arch/arm/isa/formats/fp.isa')
-rw-r--r-- | src/arch/arm/isa/formats/fp.isa | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/src/arch/arm/isa/formats/fp.isa b/src/arch/arm/isa/formats/fp.isa index 95be69ca6..b6fcf4ac7 100644 --- a/src/arch/arm/isa/formats/fp.isa +++ b/src/arch/arm/isa/formats/fp.isa @@ -530,7 +530,25 @@ let {{ (IntRegIndex)vn, (IntRegIndex)vm); } } else { - return new WarnUnimplemented("vsub", machInst); + uint32_t vd; + uint32_t vm; + uint32_t vn; + if (bits(machInst, 8) == 0) { + vd = bits(machInst, 22) | (bits(machInst, 15, 12) << 1); + vm = bits(machInst, 5) | (bits(machInst, 3, 0) << 1); + vn = bits(machInst, 7) | (bits(machInst, 19, 16) << 1); + return new VsubS(machInst, (IntRegIndex)vd, + (IntRegIndex)vn, (IntRegIndex)vm); + } else { + vd = (bits(machInst, 22) << 5) | + (bits(machInst, 15, 12) << 1); + vm = (bits(machInst, 5) << 5) | + (bits(machInst, 3, 0) << 1); + vn = (bits(machInst, 7) << 5) | + (bits(machInst, 19, 16) << 1); + return new VsubD(machInst, (IntRegIndex)vd, + (IntRegIndex)vn, (IntRegIndex)vm); + } } case 0x8: if ((opc3 & 0x1) == 0) { |