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| author | Gabe Black <gblack@eecs.umich.edu> | 2007-12-01 23:06:03 -0800 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2007-12-01 23:06:03 -0800 |
| commit | 988c6f227afbd2048df2eeae55aed29a1addcab7 (patch) | |
| tree | 191324aa2a2ab1855a4f731a39889bc9f9929ad7 | |
| parent | fe833dd2c33818a1f92f87ea26b17e6b85d3976e (diff) | |
| download | gem5-988c6f227afbd2048df2eeae55aed29a1addcab7.tar.xz | |
X86: Implement mov from control register.
--HG--
extra : convert_revision : c8280f0686a3ae6d5c405327540ad15a3a5531f9
| -rw-r--r-- | src/arch/x86/isa/decoder/two_byte_opcodes.isa | 2 | ||||
| -rw-r--r-- | src/arch/x86/isa/insts/general_purpose/data_transfer/move.py | 4 | ||||
| -rw-r--r-- | src/arch/x86/isa/microops/regop.isa | 12 |
3 files changed, 17 insertions, 1 deletions
diff --git a/src/arch/x86/isa/decoder/two_byte_opcodes.isa b/src/arch/x86/isa/decoder/two_byte_opcodes.isa index 717a8f26f..b50c42cd9 100644 --- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa +++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa @@ -216,7 +216,7 @@ 0x04: decode LEGACY_DECODEVAL { // no prefix 0x0: decode OPCODE_OP_BOTTOM3 { - 0x0: mov_Rd_Cd(); + 0x0: Inst::MOV(Rd,Cd); 0x1: mov_Rd_Dd(); 0x2: Inst::MOV(Cd,Rd); 0x3: mov_Dd_Rd(); diff --git a/src/arch/x86/isa/insts/general_purpose/data_transfer/move.py b/src/arch/x86/isa/insts/general_purpose/data_transfer/move.py index aaddcf962..069d1010e 100644 --- a/src/arch/x86/isa/insts/general_purpose/data_transfer/move.py +++ b/src/arch/x86/isa/insts/general_purpose/data_transfer/move.py @@ -193,6 +193,10 @@ def macroop MOV_C_R { wrcr reg, regm }; +def macroop MOV_R_C { + rdcr reg, regm +}; + def macroop MOV_R_S { rdsel reg, regm }; diff --git a/src/arch/x86/isa/microops/regop.isa b/src/arch/x86/isa/microops/regop.isa index de9f76e73..e761f0034 100644 --- a/src/arch/x86/isa/microops/regop.isa +++ b/src/arch/x86/isa/microops/regop.isa @@ -885,6 +885,18 @@ let {{ class Zext(RegOp): code = 'DestReg = bits(psrc1, op2, 0);' + class Rdcr(RegOp): + def __init__(self, dest, src1, flags=None, dataSize="env.dataSize"): + super(Rdcr, self).__init__(dest, \ + src1, "NUM_INTREGS", flags, dataSize) + code = ''' + if (dest == 1 || (dest > 4 && dest < 8) || (dest > 8)) { + fault = new InvalidOpcode(); + } else { + DestReg = ControlSrc1; + } + ''' + class Wrcr(RegOp): def __init__(self, dest, src1, flags=None, dataSize="env.dataSize"): super(Wrcr, self).__init__(dest, \ |