Gabe Black
0cba96ba6a
CPU: Merge the predecoder and decoder.
...
These classes are always used together, and merging them will give the ISAs
more flexibility in how they cache things and manage the process.
--HG--
rename : src/arch/x86/predecoder_tables.cc => src/arch/x86/decoder_tables.cc
2012-05-26 13:44:46 -07:00
Nathan Binkert
13d64906c2
copyright: Change HP copyright on x86 code to be more friendly
2010-05-23 22:44:15 -07:00
Gabe Black
931405da2f
X86: Fix the expected size of the immediate offset in MOV_MI.
2009-09-17 02:56:06 -07:00
Gabe Black
b23633ad1b
X86: Hook in the M5 pseudo insts.
2009-01-06 23:55:46 -08:00
Gabe Black
b179c3f4cd
X86: Make hint nops consume their modrm byte.
2008-08-03 14:43:24 -07:00
Gabe Black
dfc2d44ea3
X86: Flesh out 3dnow instruction decoding a bit and grab the byte immediate.
2008-06-12 00:48:46 -04:00
Gabe Black
97c4258383
The groups of instructions hanging off opcode 71h, 72h, and 73h all need a byte immediate
...
--HG--
extra : convert_revision : 9559047adfec1490c2d40065442a579549624fcc
2007-07-24 15:19:02 -07:00
Gabe Black
7860c045e2
x86 work that hadn't been checked in.
...
src/arch/x86/isa/decoder/one_byte_opcodes.isa:
Give the "MOV" instruction the format of it's arguments. This will likely need to be completely overhauled in the near future.
src/arch/x86/predecoder.cc:
src/arch/x86/predecoder.hh:
Make the predecoder explicitly reset itself rather than counting on it happening naturally.
src/arch/x86/predecoder_tables.cc:
Fix the immediate size table
src/arch/x86/regfile.cc:
nextnpc is bogus
--HG--
extra : convert_revision : 0926701fedaab41817e64bb05410a25174484a5a
2007-05-31 13:50:35 +00:00
Gabe Black
75e8838ba4
Clean up the code a little, fix (I think) a perceived problem with immediate sizes, and sign extend the 32-bit-acting-like-64-bit-immediates.
...
--HG--
extra : convert_revision : e59b747198cc79d50045bd2dc45b2e2b97bbffcc
2007-04-06 15:19:23 +00:00
Gabe Black
0a80d06dea
Break out the one and two byte opcodes into different files. Also change what bits decode is done on to reflect where clumps of instructions are.
...
--HG--
extra : convert_revision : 8768676eac25e6a4f0dc50ce2dc576bdcdd6e025
2007-03-21 19:19:53 +00:00
Gabe Black
075df1469f
Added immediate value support, and fixed alot of bugs. This won't support 3 byte opcodes.
...
--HG--
extra : convert_revision : 4c79bff2592a668e1154916875f019ecafe67022
2007-03-15 15:29:39 +00:00
Gabe Black
a2b56088fb
Make the predecoder an object with it's own switched header file. Start adding predecoding functionality to x86.
...
src/arch/SConscript:
src/arch/alpha/utility.hh:
src/arch/mips/utility.hh:
src/arch/sparc/utility.hh:
src/cpu/base.hh:
src/cpu/o3/fetch.hh:
src/cpu/o3/fetch_impl.hh:
src/cpu/simple/atomic.cc:
src/cpu/simple/base.cc:
src/cpu/simple/base.hh:
src/cpu/static_inst.hh:
src/arch/alpha/predecoder.hh:
src/arch/mips/predecoder.hh:
src/arch/sparc/predecoder.hh:
Make the predecoder an object with it's own switched header file.
--HG--
extra : convert_revision : 77206e29089130e86b97164c30022a062699ba86
2007-03-15 02:47:42 +00:00
