sanchayanmaity/gem5
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425 commits

Author SHA1 Message Date
Gabe Black 23ba9c7b96 ARM: Fix vcvtr so that it uses the rounding mode in the FPSCR. 2010-06-02 12:58:15 -05:00
Gabe Black 1fda944716 ARM: Fix saturation of VCVT from fp to integer. 2010-06-02 12:58:15 -05:00
Gabe Black 347ab6c704 ARM: Compensate for ARM's underflow coming from -before- rounding, but x86's after. 2010-06-02 12:58:15 -05:00
Gabe Black fd82a47b96 ARM: Implement flush to zero for destinations as well. 2010-06-02 12:58:15 -05:00
Gabe Black 186273e5f3 ARM: Fix up nans to match ARM's expected behavior. 2010-06-02 12:58:15 -05:00
Gabe Black 98e2315f1c ARM: Set the value of the MVFR0 and MVFR1 registers. 2010-06-02 12:58:15 -05:00
Gabe Black 8466999aef ARM: Implement flush to zero mode for VFP, and clean up some corner cases. 2010-06-02 12:58:15 -05:00
Gabe Black efbceff96a ARM: Add barriers that make sure FP operations happen where they're supposed to. 2010-06-02 12:58:15 -05:00
Gabe Black 1b3b75ee68 ARM: Implement the version of VCVT float to int that rounds towards zero. 2010-06-02 12:58:15 -05:00
Gabe Black aa05e5401c ARM: Implement the floating/fixed point VCVT instructions. 2010-06-02 12:58:15 -05:00
Gabe Black 86a1093992 ARM: Add code to extract and record VFP exceptions. 2010-06-02 12:58:14 -05:00
Gabe Black e478df35f5 ARM: Implement the VFP version of VCMP. 2010-06-02 12:58:14 -05:00
Gabe Black c1f7bf7f0e ARM: Add support for VFP vector mode. 2010-06-02 12:58:14 -05:00
Gabe Black f245f4937b ARM: Introduce new VFP base classes that are optionally microops. 2010-06-02 12:58:14 -05:00
Gabe Black 41012d2418 ARM: Implement VCVT between double and single width FP. 2010-06-02 12:58:14 -05:00
Gabe Black a430f749ce ARM: Implement vcvt between int and fp. Ignore rounding. 2010-06-02 12:58:14 -05:00
Gabe Black a9d1de4769 ARM: Consolidate the VFP register index computation code. 2010-06-02 12:58:14 -05:00
Gabe Black 80fa3a7ccf ARM: Implement the VFP negated multiplies. 2010-06-02 12:58:14 -05:00
Gabe Black 3111a62169 ARM: Implement the VFP versions of VMLA and VMLS. 2010-06-02 12:58:14 -05:00
Gabe Black 90d70a22cb ARM: Implement the VFP version of vdiv and vsqrt. 2010-06-02 12:58:14 -05:00
Gabe Black cc665240a4 ARM: Implement the VFP version of vsub. 2010-06-02 12:58:14 -05:00
Gabe Black 44759669aa ARM: Implement the VFP version of vadd. 2010-06-02 12:58:14 -05:00
Gabe Black 9e32ff3491 ARM: Implement the VFP version of vabs. 2010-06-02 12:58:14 -05:00
Gabe Black cd0a6a1303 ARM: Implement the VFP version of vneg. 2010-06-02 12:58:14 -05:00
Gabe Black 65f5204325 ARM: Implement the VFP version of vmul. 2010-06-02 12:58:14 -05:00
Gabe Black 19e05d7e8d ARM: Move the VFP data operation decode into a function. 2010-06-02 12:58:14 -05:00
Gabe Black 527b735cfc ARM: Implement and update the DFSR and IFSR registers on faults. 2010-06-02 12:58:14 -05:00
Gabe Black 4491170df6 ARM: Make integer division by zero return a fault. 2010-06-02 12:58:13 -05:00
Gabe Black cd86e34187 ARM: Add in some missing SCTLR fields. 2010-06-02 12:58:13 -05:00
Gabe Black c5a8a1d673 ARM: Decode ARM unconditional MRC and MCR instructions. 2010-06-02 12:58:13 -05:00
Gabe Black 98fe7b0fbe ARM: Move the CP15 decode block into a function. 2010-06-02 12:58:13 -05:00
Gabe Black 5d9191a428 ARM: Decode the unconditional version of ARM fp instructions. 2010-06-02 12:58:13 -05:00
Gabe Black 81b7c3d264 ARM: Move the FP decode blocks into functions. 2010-06-02 12:58:13 -05:00
Gabe Black e21f93702a ARM: Warn/ignore when TLB maintenance operations are performed. 2010-06-02 12:58:13 -05:00
Gabe Black eac239b4d6 ARM: Handle accesses to TLBTR. 2010-06-02 12:58:13 -05:00
Gabe Black 9fb573d91e ARM: Handle accesses to the DACR. 2010-06-02 12:58:13 -05:00
Gabe Black 951b7edaba ARM: Handle accesses to TTBR0 and TTBR1. 2010-06-02 12:58:13 -05:00
Gabe Black b5cfa9361b ARM: Convert the CP15 registers from MPU to MMU. 2010-06-02 12:58:13 -05:00
Ali Saidi 556ea0ee57 ARM: Add some support for wfi/wfe/yield/etc 2010-06-02 12:58:13 -05:00
Ali Saidi 5e6d28996a ARM: Move PC mode bits around so they can be used for exectrace 2010-06-02 12:58:13 -05:00
Ali Saidi aec73ba6af ARM: Add a traceflag to print cpsr 2010-06-02 12:58:13 -05:00
Ali Saidi 65a5177b53 ARM: Undef instruction on invalid user CP15 access 2010-06-02 12:58:13 -05:00
Gabe Black 2e4ddbd234 ARM: Decode the VSTR instruction. 2010-06-02 12:58:12 -05:00
Gabe Black 6106bd18cd ARM: Implement the vstr instruction. 2010-06-02 12:58:12 -05:00
Ali Saidi f64c8bafd2 ARM: BXJ should be BX when there is no J support 2010-06-02 12:58:12 -05:00
Gabe Black 1fcd389fa3 ARM: Make sure macroops aren't interrupted midinstruction. 
Do this by setting the delayed commit flag for all but the last microop.
 2010-06-02 12:58:12 -05:00
Gabe Black 67766cbf17 ARM: Fix the implementation of the VFP ldm and stm macroops. 
There were four bugs in these instructions. First, the loaded value was being
stored into a floating point register as floating point, changing the value as
it was transfered. Second, the meaning of the "up" bit had been reversed.
Third, the statically sized microop array wasn't bit enough for all possible
inputs. It's now dynamically sized and should always be big enough. Fourth,
the offset was stored as an unsigned 8 bit value. Negative offsets would look
like moderately large positive offsets.
 2010-06-02 12:58:12 -05:00
Gabe Black ad9c5af945 ARM: Fix up thumb decoding of coproc instructions. 2010-06-02 12:58:12 -05:00
Gabe Black dea707704f ARM: Clean up some redundancy and fault behavior for unimplemented thumb MCR, MRC. 2010-06-02 12:58:12 -05:00
Gabe Black 943b77b9bb ARM: Decode the VLDR instruction. 2010-06-02 12:58:12 -05:00