diff options
| author | Gabe Black <gblack@eecs.umich.edu> | 2010-06-02 12:58:08 -0500 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2010-06-02 12:58:08 -0500 |
| commit | 7ff24c877750a24507afb87eebe14cd1df40a5fa (patch) | |
| tree | 775f0f7a5831adf4215db96d468af1950808a7b5 /src | |
| parent | a37b6b6bce6b0aa04de270b756d624fd9c3afad2 (diff) | |
| download | gem5-7ff24c877750a24507afb87eebe14cd1df40a5fa.tar.xz | |
ARM: Decode the bfi and bfc instructions.
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/arm/isa/formats/data.isa | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/src/arch/arm/isa/formats/data.isa b/src/arch/arm/isa/formats/data.isa index 8d6baa289..9f0952a62 100644 --- a/src/arch/arm/isa/formats/data.isa +++ b/src/arch/arm/isa/formats/data.isa @@ -61,10 +61,12 @@ def format ArmMiscMedia() {{ return new Sbfx(machInst, ra, rn, lsb, msb); } } else if (bits(op2, 1, 0) == 0x0 && bits(op1, 2, 1) == 0x2) { + const uint32_t lsb = bits(machInst, 11, 7); + const uint32_t msb = bits(machInst, 20, 16); if (rn == 0xf) { - return new WarnUnimplemented("bfc", machInst); + return new Bfc(machInst, ra, ra, lsb, msb); } else { - return new WarnUnimplemented("bfi", machInst); + return new Bfi(machInst, ra, rn, lsb, msb); } } return new Unknown(machInst); @@ -1247,10 +1249,15 @@ def format Thumb32DataProcPlainBin() {{ return new Sbfx(machInst, rd, rn, lsb, msb); } case 0x16: - if (rn == 0xf) { - return new WarnUnimplemented("bfc", machInst); - } else { - return new WarnUnimplemented("bfi", machInst); + { + const uint32_t lsb = bits(machInst, 7, 6) | + (bits(machInst, 14, 12) << 2); + const uint32_t msb = bits(machInst, 4, 0); + if (rn == 0xf) { + return new Bfc(machInst, rd, rd, lsb, msb); + } else { + return new Bfi(machInst, rd, rn, lsb, msb); + } } case 0x1a: if (!(bits(machInst, 14, 12) || bits(machInst, 7, 6))) { |