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754 commits

Author SHA1 Message Date
Gabe Black
2914a8eb16 X86: Make the check for negative operands for sign multiply more direct. 2009-08-05 03:06:37 -07:00
Gabe Black
e2e0ae576a X86: Make sure immediate values are truncated properly. 
Register values will be "picked" which will assure they don't have junk beyond
the part we're using. Immediate values don't go through a similar process, so
we should truncate them explicitly.
 2009-08-05 03:06:01 -07:00
Gabe Black
ef3896d851 X86: Use the new forced folding mechanism for the SAHF and LAHF instructions. 2009-08-05 03:04:17 -07:00
Gabe Black
664d50b439 X86: Fix the indexing for ah in byte division instructions. 2009-08-05 03:03:41 -07:00
Gabe Black
abe8fb3844 X86: Fix the indexing for ah in byte multiply instructions. 2009-08-05 03:03:28 -07:00
Gabe Black
df1abc4412 X86: Let microops force folding an index into the high byte of a register. 2009-08-05 03:03:07 -07:00
Gabe Black
c4140d7d60 X86: Handle rotate left with carry instructions that go all the way around or more. 2009-08-05 03:02:28 -07:00
Gabe Black
3990445354 X86: Set the flags on rotate left with carry instructions. 2009-08-05 03:02:05 -07:00
Gabe Black
d265f7683e X86: Handle rotate right with carry instructions that go all the way around or more. 2009-08-05 03:01:49 -07:00
Gabe Black
77dc6b33ee X86: Fix the overflow bit for rotate right with carry. 2009-08-05 03:01:23 -07:00
Gabe Black
c8b1a4583e X86: Fix the computation of the bottom part of rotate right with carry. 2009-08-05 03:01:07 -07:00
Gabe Black
bab4597fc5 X86: Fix the computation of the upper part of rotate right with carry. 2009-08-05 03:00:43 -07:00
Gabe Black
4e4adcaaa8 X86: Set the flags for rotate right with carry instructions. 2009-08-05 03:00:23 -07:00
Gabe Black
64d7948692 X86: Handle rotating right all the way around or more. 2009-08-05 03:00:03 -07:00
Gabe Black
88041f75c4 X86: Set the flags on a rotate right instruction. 2009-08-05 02:59:39 -07:00
Gabe Black
029d360db2 X86: Make shifts/rotations that write to 32 bits of a register zero extend. 2009-08-05 02:59:25 -07:00
Gabe Black
7f9a3af250 X86: Handle left rotations that go all the way around or more. 2009-08-05 02:58:54 -07:00
Gabe Black
99adfd9dae X86: Actually set the flags on a rotate left instruction. 2009-08-05 02:58:20 -07:00
Gabe Black
c087b60af3 X86: Fix the sar carry flag. 2009-08-05 02:58:03 -07:00
Gabe Black
860f0f8350 X86: Fix sign extension when doing an arithmetic shift right by 0. 2009-08-05 02:57:47 -07:00
Gabe Black
a238959c34 X86: Fix the carry flag for shr. 2009-08-05 02:56:49 -07:00
Gabe Black
22a5f66820 X86: Fix the carry flag for shl. 2009-08-05 02:56:38 -07:00
Gabe Black
df2c862a07 X86: Fix how the parity flag is computed. 
It's only for the lowest order byte, and I had the polarity wrong.
 2009-08-05 02:56:12 -07:00
Gabe Black
676dc6d292 X86: Fix segment override prefixes on instructions that use rbp/rsp and a displacement. 2009-08-03 11:01:40 -07:00
Gabe Black
aff57202b4 X86: Fix the high result of mul1s, and removed undefined shifts from the mult microops. 2009-08-02 08:39:29 -07:00
Steve Reinhardt
1c28004654 Clean up some inconsistencies with Request flags. 2009-08-01 22:50:13 -07:00
Gabe Black
3e8e813218 CPU: Separate out native trace into ISA (in)dependent code and SimObjects. 
--HG--
rename : src/cpu/nativetrace.cc => src/arch/sparc/nativetrace.cc
rename : src/cpu/nativetrace.hh => src/arch/sparc/nativetrace.hh
rename : src/cpu/NativeTrace.py => src/arch/x86/X86NativeTrace.py
 2009-07-19 23:54:56 -07:00
Gabe Black
f0cb698a87 X86: Move a displaced comment back to where it goes. 2009-07-19 23:51:47 -07:00
Gabe Black
563654275f X86: Add some misc registers for FP control state. 2009-07-19 23:51:41 -07:00
Gabe Black
d85cd08113 X86: Set up a named constant for the "fold bit" for int register indices. 2009-07-17 18:49:22 -07:00
Gabe Black
7b6587fc9c X86: Tame the wilds of def operands. 2009-07-17 00:29:56 -07:00
Gabe Black
df378285f8 X86: Shift some register flattening work into the decoder. 2009-07-17 00:29:42 -07:00
Gabe Black
e9eccf7225 X86: Add range checks for miscreg indexing utility functions. 2009-07-16 09:30:14 -07:00
Gabe Black
ba6b8389ee X86: Take limitted advantage of the compilers type checking for microop operands. 2009-07-16 09:29:29 -07:00
Gabe Black
80c834ccac X86: Fix a number of places where the wrong form of a microop was used. 2009-07-16 09:27:56 -07:00
Gabe Black
3f9b0cc5ca X86: Fix x87 stack register indexing. 2009-07-16 09:26:38 -07:00
Gabe Black
9993ca8280 X86: Fold the MiscRegFile all the way into the ISA object. 2009-07-09 20:29:02 -07:00
Gabe Black
c9a27d85b9 Get rid of the unused get(Data|Inst)Asid and (inst|data)Asid functions. 2009-07-08 23:02:22 -07:00
Gabe Black
b398b8ff1b Registers: Add a registers.hh file as an ISA switched header. 
This file is for register indices, Num* constants, and register types.
copyRegs and copyMiscRegs were moved to utility.hh and utility.cc.

--HG--
rename : src/arch/alpha/regfile.hh => src/arch/alpha/registers.hh
rename : src/arch/arm/regfile.hh => src/arch/arm/registers.hh
rename : src/arch/mips/regfile.hh => src/arch/mips/registers.hh
rename : src/arch/sparc/regfile.hh => src/arch/sparc/registers.hh
rename : src/arch/x86/regfile.hh => src/arch/x86/registers.hh
 2009-07-08 23:02:21 -07:00
Gabe Black
5c37d10624 Registers: Eliminate the ISA defined RegFile class. 2009-07-08 23:02:21 -07:00
Gabe Black
43345bff6c Registers: Move the PCs out of the ISAs and into the CPUs. 2009-07-08 23:02:21 -07:00
Gabe Black
ecde884404 X86: Phase out x86's intregfile.hh. 2009-07-08 23:02:20 -07:00
Gabe Black
a480ba00b9 Registers: Eliminate the ISA defined integer register file. 2009-07-08 23:02:20 -07:00
Gabe Black
0cb180ea0d Registers: Eliminate the ISA defined floating point register file. 2009-07-08 23:02:20 -07:00
Gabe Black
25884a8773 Registers: Get rid of the float register width parameter. 2009-07-08 23:02:20 -07:00
Gabe Black
32daf6fc3f Registers: Add an ISA object which replaces the MiscRegFile. 
This object encapsulates (or will eventually) the identity and characteristics
of the ISA in the CPU.
 2009-07-08 23:02:20 -07:00
Gabe Black
d029110fa1 X86: Fix a bug in IRET_PROT's microcode. The immediate form of sra was intended. 2009-07-08 23:01:54 -07:00
Gabe Black
7f50ea05ac X86: Keep track of more descriptor state to accomodate KVM. 2009-05-28 23:27:56 -07:00
Gabe Black
d93392df28 X86: Really set up the GDT and various hidden/visible segment registers. 2009-05-26 02:23:08 -07:00
Nathan Binkert
8d2e51c7f5 includes: sort includes again 2009-05-17 14:34:52 -07:00