From 15356af288c3e32ef9057e7a59e3bba6a2156b43 Mon Sep 17 00:00:00 2001 From: Gabe Black Date: Wed, 2 Jun 2010 12:58:05 -0500 Subject: [PATCH] ARM: Decode the ARM version of the REV* instructions. --- src/arch/arm/isa/formats/data.isa | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/src/arch/arm/isa/formats/data.isa b/src/arch/arm/isa/formats/data.isa index a19c4ea3d..b1baca16b 100644 --- a/src/arch/arm/isa/formats/data.isa +++ b/src/arch/arm/isa/formats/data.isa @@ -165,7 +165,9 @@ def format ArmPackUnpackSatReverse() {{ break; case 0x3: if (op2 == 0x1) { - return new WarnUnimplemented("rev", machInst); + IntRegIndex rd = (IntRegIndex)(uint32_t)bits(machInst, 15, 12); + IntRegIndex rm = (IntRegIndex)(uint32_t)bits(machInst, 3, 0); + return new Rev(machInst, rd, rm); } else if (op2 == 0x3) { if (a == 0xf) { return new WarnUnimplemented("sxth", machInst); @@ -173,7 +175,9 @@ def format ArmPackUnpackSatReverse() {{ return new WarnUnimplemented("sxtah", machInst); } } else if (op2 == 0x5) { - return new WarnUnimplemented("rev16", machInst); + IntRegIndex rd = (IntRegIndex)(uint32_t)bits(machInst, 15, 12); + IntRegIndex rm = (IntRegIndex)(uint32_t)bits(machInst, 3, 0); + return new Rev16(machInst, rd, rm); } break; case 0x4: @@ -206,7 +210,9 @@ def format ArmPackUnpackSatReverse() {{ return new WarnUnimplemented("uxtah", machInst); } } else if (op2 == 0x5) { - return new WarnUnimplemented("revsh", machInst); + IntRegIndex rd = (IntRegIndex)(uint32_t)bits(machInst, 15, 12); + IntRegIndex rm = (IntRegIndex)(uint32_t)bits(machInst, 3, 0); + return new Revsh(machInst, rd, rm); } break; } -- 2.30.2