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3868 commits

Author SHA1 Message Date
Gabe Black
11c3361be4 ARM: Fix when the flag bits are updated for thumb. 2010-06-02 12:58:04 -05:00
Gabe Black
14d25fbad0 ARM: Don't rely on undefined behavior to get arithmetic right shift. 
Shifting to the right of a signed value when the MSB is one is technically
undefined behavior, even though in my experience it's done the "right thing"
and sign extended the value. This replaces the arithmetic right shift code in
ARM that uses that coincidence with some code that relies on bit math.
 2010-06-02 12:58:04 -05:00
Gabe Black
05d880f7a1 ARM: Restrict the shift amount from a register to 8 bits. 
The shift amount when taken from a register is supposed to be truncated to an
8 bit value.
 2010-06-02 12:58:04 -05:00
Gabe Black
9ebaf8ecd5 ARM: Define the VFP load/store multiple instructions. 2010-06-02 12:58:04 -05:00
Gabe Black
3f83094af2 ARM: Decode the VFP load/store multiple instructions. 2010-06-02 12:58:04 -05:00
Gabe Black
647edea970 ARM: Fix the constant describing the number of floating point registers. 2010-06-02 12:58:04 -05:00
Gabe Black
2f3102f1ef ARM: Add templates for VFP load/store multiple instructions. 2010-06-02 12:58:04 -05:00
Gabe Black
739f23c64c ARM: Add base classes for VFP load/store multiple. 2010-06-02 12:58:04 -05:00
Gabe Black
cb631d87c3 ARM: Add floating point load/store microops. 2010-06-02 12:58:04 -05:00
Gabe Black
3a11412c99 ARM: Add an fp version of one of the microop indexed registers. 2010-06-02 12:58:04 -05:00
Gabe Black
d5aee75efe ARM: Move the mmap region to where Linux actually has it. 2010-06-02 12:58:04 -05:00
Gabe Black
a8eb9d521c ARM: Eliminate the unused rhi and rlo operands. 2010-06-02 12:58:03 -05:00
Gabe Black
b02c7f1bcd ARM: Move the macro mem constructor out of the isa desc. 
This code doesn't use the parser at all, and moving it out reduces the
conceptual complexity of that code.
 2010-06-02 12:58:03 -05:00
Gabe Black
7b62e9ad71 ARM: Make macroops panic if executed directly. 
The macroop should never be executed, only it's microops will.
 2010-06-02 12:58:03 -05:00
Ali Saidi
8fadf2691d ARM: GCC < 4.3 has some issues with attribute no return on some functions. Fix so it works for older gccs. 2010-06-02 12:58:03 -05:00
Gabe Black
f18040a205 ARM: Split out the "basic" templates and format. 
--HG--
rename : src/arch/arm/isa/formats/basic.isa => src/arch/arm/isa/templates/basic.isa
 2010-06-02 12:58:03 -05:00
Gabe Black
c175f1b993 ARM: Remove unnecessary cruft from includes.isa. 2010-06-02 12:58:03 -05:00
Gabe Black
e29ec7d2ed ARM: Move the inst2string function out of the isa_desc. 
Delete the now empty formats/util.isa.
 2010-06-02 12:58:03 -05:00
Gabe Black
ae135228fc ARM: Get rid of the unused ArmGenericCodeSubs. 2010-06-02 12:58:03 -05:00
Gabe Black
8c012e9571 ARM: Make the predecoder print out the ExtMachInst it gathered when traced. 2010-06-02 12:58:03 -05:00
Gabe Black
458bd025d4 ARM: Remove special naming for the new version of multiply. 2010-06-02 12:58:03 -05:00
Gabe Black
2196f75a25 ARM: Hook the new multiply instructions into all the decoders. 2010-06-02 12:58:03 -05:00
Gabe Black
33da368e99 ARM: Implement all integer multiply instructions. 2010-06-02 12:58:03 -05:00
Gabe Black
50229be27f ARM: Add templates for multiply instructions. 2010-06-02 12:58:03 -05:00
Gabe Black
3430b34cff ARM: Add base classes for multiply instructions. 2010-06-02 12:58:03 -05:00
Gabe Black
c7d2f43641 ARM: Decode plain binary immediate thumb data processing instructions. 2010-06-02 12:58:03 -05:00
Gabe Black
dcf218155d ARM: Define a new "movt" data processing instruction. 2010-06-02 12:58:03 -05:00
Gabe Black
b615ed1470 ARM: Hook the new branch instructions into the 32 bit thumb decoder. 2010-06-02 12:58:03 -05:00
Gabe Black
274badd201 ARM: Hook the new branch instructions into the 16 bit thumb decoder. 2010-06-02 12:58:03 -05:00
Gabe Black
b6b2f8891a ARM: Eliminate the old style branch instructions. 2010-06-02 12:58:03 -05:00
Gabe Black
d082705b01 ARM: Hook the new branch instructions into the ARM decoder. 2010-06-02 12:58:02 -05:00
Gabe Black
9869343636 ARM: Implement branch instructions external to the decoder. 2010-06-02 12:58:02 -05:00
Gabe Black
a6c1c8debb ARM: Add new templates for branch instructions. 2010-06-02 12:58:02 -05:00
Gabe Black
ef3972eaae ARM: Implement new base classes for branches. 2010-06-02 12:58:02 -05:00
Gabe Black
769f3406fe ARM: Replace the interworking branch base class with a special operand. 2010-06-02 12:58:02 -05:00
Gabe Black
b6e7029dd5 ARM: Fix PC operand handling. 2010-06-02 12:58:02 -05:00
Gabe Black
7eb3ea2798 ARM: Remove the special naming from the new version of data processing instructions. 2010-06-02 12:58:02 -05:00
Gabe Black
4f08b52af2 ARM: Get rid of unnecessary flag calculating functions. 2010-06-02 12:58:02 -05:00
Gabe Black
bf903ec9a1 ARM: Get rid of the unused Jump format. 2010-06-02 12:58:02 -05:00
Gabe Black
36ca0658a4 ARM: Get rid of obsoleted predicated inst formats, etc. 2010-06-02 12:58:02 -05:00
Gabe Black
7939b48265 ARM: Implement disassembly for the new data processing classes. 2010-06-02 12:58:02 -05:00
Gabe Black
b66e3aec43 ARM: Hook the external data processing instructions into the Thumb decoder. 2010-06-02 12:58:02 -05:00
Gabe Black
beb759912b ARM: Move the modified_imm function from all ARM instructions to just data processing ones. 2010-06-02 12:58:02 -05:00
Gabe Black
8136cb3605 ARM: Hook the new external data processing instructions to the ARM decoder. 2010-06-02 12:58:02 -05:00
Gabe Black
bf45d44cbe ARM: Implement data processing instructions external to the decoder. 2010-06-02 12:58:02 -05:00
Gabe Black
c02f9cdddf ARM: Add new base classes for data processing instructions. 2010-06-02 12:58:02 -05:00
Gabe Black
1e7b317a98 ARM: Hook up 32 bit thumb load/store multiple. 2010-06-02 12:58:02 -05:00
Gabe Black
64d6b6ebfd ARM: Hook up 16 bit thumb load/store multiple. 2010-06-02 12:58:02 -05:00
Gabe Black
51bde086d5 ARM: Reimplement load/store multiple external to the decoder. 
--HG--
rename : src/arch/arm/isa/formats/macromem.isa => src/arch/arm/isa/insts/macromem.isa
rename : src/arch/arm/isa/formats/macromem.isa => src/arch/arm/isa/templates/macromem.isa
 2010-06-02 12:58:02 -05:00
Gabe Black
93a3714816 ARM: Move the templates for predicated instructions into a separate file. 
This allows the templates to all be available at the same time before any of
the formats, etc. This breaks an artificial circular dependence.

--HG--
rename : src/arch/arm/isa/formats/pred.isa => src/arch/arm/isa/templates/pred.isa
 2010-06-02 12:58:01 -05:00
Gabe Black
04300e33d4 ARM: Remove the special naming for the new memory instructions. 
These are the only memory instructions now.
 2010-06-02 12:58:01 -05:00
Gabe Black
deb6e8f805 ARM: Eliminate the old memory formats which are no longer used. 2010-06-02 12:58:01 -05:00
Gabe Black
1905024766 ARM: Eliminate decoding for the very deprecated FPA instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
55465844dc ARM: Make the addressing mode 3 loads/stores use the externally defined instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
36b6ca2ce3 ARM: Pull double memory instructions out of the decoder. 2010-06-02 12:58:01 -05:00
Gabe Black
79b288f7b5 ARM: Force the condition code for 16 bit thumb instructions to be unconditional. 
Before, because 16 bit thumb instructions didn't set the upper 16 bits of the
ExtMachInst, that field would be interpretted as "equals".
 2010-06-02 12:58:01 -05:00
Gabe Black
a86491fbf2 ARM: Decode 16 bit thumb PC relative memory instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
dc8af1b211 ARM: Decode 16 bit thumb immediate addressed memory instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
4bbd73649d ARM: Decode 16 bit thumb register addressed memory instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
462cf6f49b ARM: Make single stores decode to the new external store instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
3b0f3b1ee2 ARM: Add a .w to the disassembly of 32 bit thumb instructions. 
This isn't technically correct since the .w should only be added if there are
32 and 16 bit encodings, but always having it always is better than never
having it.
 2010-06-02 12:58:01 -05:00
Gabe Black
fde3c8f41d ARM: Make 32 bit thumb use the new, external load instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
3b93015304 ARM: Define the store instructions from outside the decoder. 
--HG--
rename : src/arch/arm/isa/insts/ldr.isa => src/arch/arm/isa/insts/str.isa
 2010-06-02 12:58:01 -05:00
Gabe Black
81fdced83f ARM: Define the load instructions from outside the decoder. 2010-06-02 12:58:01 -05:00
Gabe Black
321d3a6e8c ARM: Implement a new set of base classes for non macro memory instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
8933857af7 ARM: Create a "decoder" directory for the files implementing the decoder. 
--HG--
rename : src/arch/arm/isa/armdecode.isa => src/arch/arm/isa/decoder/arm.isa
rename : src/arch/arm/isa/decoder.isa => src/arch/arm/isa/decoder/decoder.isa
rename : src/arch/arm/isa/thumbdecode.isa => src/arch/arm/isa/decoder/thumb.isa
rename : src/arch/arm/isa/vfpdecode.isa => src/arch/arm/isa/decoder/vfp.isa
 2010-06-02 12:58:01 -05:00
Gabe Black
4ebd44dc4f ARM: Flesh out the 32 bit thumb store single instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
386424ccb5 ARM: Implement the 32 bit thumb load word instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
292b8a3c91 ARM: Add an operand for accessing the current PC. 2010-06-02 12:58:00 -05:00
Gabe Black
003346077f ARM: Flesh out 32 bit thumb load word decoding. 2010-06-02 12:58:00 -05:00
Gabe Black
0d4c4cacab ARM: Implement some 32 bit thumb data processing immediate instructions. 2010-06-02 12:58:00 -05:00
Gabe Black
bd8812cf99 ARM: Replace the "never" condition with the "unconditional" condition. 2010-06-02 12:58:00 -05:00
Gabe Black
af91d27271 ARM: Add a base class for 32 bit thumb data processing immediate instructions. 2010-06-02 12:58:00 -05:00
Gabe Black
bfe1a194dd ARM: Add a function to decode 32 bit thumb immediate values. 2010-06-02 12:58:00 -05:00
Gabe Black
0116655674 ARM: Expand the decoding for 32 bit thumb data processing immediate instructions. 2010-06-02 12:58:00 -05:00
Gabe Black
cef2e8ecee ARM: Stub out the 32 bit Thumb portion of the decoder. 2010-06-02 12:58:00 -05:00
Gabe Black
659f8d021f ARM: Add bitfields for 32 bit thumb. 2010-06-02 12:58:00 -05:00
Gabe Black
bc6ae010c9 ARM: Decode VFP instructions. 2010-06-02 12:58:00 -05:00
Gabe Black
7b8525287d ARM: Stub out the 16 bit thumb decoder. 2010-06-02 12:58:00 -05:00
Gabe Black
aaa619ea23 ARM: Add thumb bitfields to the ExtMachInst and the isa definition. 2010-06-02 12:58:00 -05:00
Gabe Black
a1838f2c79 ARM: Make the decoder handle thumb instructions separately. 
--HG--
rename : src/arch/arm/isa/decoder.isa => src/arch/arm/isa/armdecode.isa
rename : src/arch/arm/isa/decoder.isa => src/arch/arm/isa/thumbdecode.isa
 2010-06-02 12:58:00 -05:00
Gabe Black
0dffd8ce79 ARM: Add a thumb bit bitfield. 2010-06-02 12:58:00 -05:00
Gabe Black
96be7e16c1 ARM: Make the predecoder handle Thumb instructions. 2010-06-02 12:58:00 -05:00
Gabe Black
f49cdb4f5d ARM: Make sure ExtMachInst is used consistently instead of regular MachInst. 2010-06-02 12:58:00 -05:00
Gabe Black
330d9d4dbc ARM: Add a bitfield for setting the regular, inst bits of an ExtMachInst. 2010-06-02 12:58:00 -05:00
Gabe Black
a59d219989 ARM: Add a bit to the ExtMachInst to select thumb mode. 2010-06-02 12:58:00 -05:00
Gabe Black
4ddeceba96 ARM: Allow ARM processes to start in Thumb mode. 2010-06-02 12:58:00 -05:00
Gabe Black
3951afd2fa ARM: Detect thumb mode elf images. 2010-06-02 12:58:00 -05:00
Gabe Black
ebb273bb7b ARM: Add a new base class for instructions that can do an interworking branch. 2010-06-02 12:57:59 -05:00
Gabe Black
9ef82c0bc4 ARM: Track the current ISA mode using the PC. 2010-06-02 12:57:59 -05:00
Gabe Black
1c0d9806e5 ARM: Fix custom writer/reader code for non indexed operands. 2010-06-02 12:57:59 -05:00
Gabe Black
4b87bc887a ARM: Remove IsControl from operands that don't imply control transfers. 
Also remove IsInteger from CondCodes.
 2010-06-02 12:57:59 -05:00
Ali Saidi
322f345b51 ARM: Adjust some copyrights 2010-06-02 12:57:59 -05:00
Nathan Binkert
c1aabe8172 style: clean up ruby's Set class 
Further cleanup should probably be done to make this class be non-Ruby
specific and put it in src/base.

There are probably several cases where this class is used, std::bitset
could be used instead.
 2010-06-01 11:38:56 -07:00
Nathan Binkert
bb589d463b x86: put back code that I accidentally deleted 2010-05-25 20:15:44 -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
c5c559b6ab SPARC: Implement the version of movcc that uses the fp condition codes. 2010-05-14 14:22:51 -07:00
Ali Saidi
72071690e7 Automated merge with ssh://m5sim.org//repo/m5 2010-05-13 23:48:06 -04:00
Maximilien Breughe
fc746c2268 BPRED: Fixed the treshold-bug in the tournament predictor. 
Suppose the saturating counters of a branch predictor contain n bits.  When the
counter is between 0 and (2^(n-1) - 1), boundaries included, the branch is
predicted as not taken.  When the counter is between 2^(n-1) and (2^n - 1),
boundaries included, the branch is predicted as taken.
 2010-05-13 23:45:57 -04:00
Gabe Black
c4497dbf03 X86: Make the cvti2f microop sign extend its integer source correctly. 
The code was using the wrong bit as the sign bit. Other similar bits of code
seem to be correct.
 2010-05-12 00:51:35 -07:00