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author | Yasuko Eckert <yasuko.eckert@amd.com> | 2013-10-15 14:22:44 -0400 |
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committer | Yasuko Eckert <yasuko.eckert@amd.com> | 2013-10-15 14:22:44 -0400 |
commit | 2c293823aa7cb6d2cac4c0ff35e2023ff132a8f2 (patch) | |
tree | 040fdd5bad814d7cb7ee40934974d2b38b28d67a /src/cpu/o3/thread_context.hh | |
parent | 552622184752dc798bc81f9b0b395db68aee9511 (diff) | |
download | gem5-2c293823aa7cb6d2cac4c0ff35e2023ff132a8f2.tar.xz |
cpu: add a condition-code register class
Add a third register class for condition codes,
in parallel with the integer and FP classes.
No ISAs use the CC class at this point though.
Diffstat (limited to 'src/cpu/o3/thread_context.hh')
-rwxr-xr-x | src/cpu/o3/thread_context.hh | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/cpu/o3/thread_context.hh b/src/cpu/o3/thread_context.hh index 4201878af..88cf75f4f 100755 --- a/src/cpu/o3/thread_context.hh +++ b/src/cpu/o3/thread_context.hh @@ -1,5 +1,6 @@ /* * Copyright (c) 2011-2012 ARM Limited + * Copyright (c) 2013 Advanced Micro Devices, Inc. * All rights reserved * * The license below extends only to copyright in the software and shall @@ -182,6 +183,10 @@ class O3ThreadContext : public ThreadContext return readFloatRegBitsFlat(flattenFloatIndex(reg_idx)); } + virtual CCReg readCCReg(int reg_idx) { + return readCCRegFlat(flattenCCIndex(reg_idx)); + } + /** Sets an integer register to a value. */ virtual void setIntReg(int reg_idx, uint64_t val) { setIntRegFlat(flattenIntIndex(reg_idx), val); @@ -195,6 +200,10 @@ class O3ThreadContext : public ThreadContext setFloatRegBitsFlat(flattenFloatIndex(reg_idx), val); } + virtual void setCCReg(int reg_idx, CCReg val) { + setCCRegFlat(flattenCCIndex(reg_idx), val); + } + /** Reads this thread's PC state. */ virtual TheISA::PCState pcState() { return cpu->pcState(thread->threadId()); } @@ -234,6 +243,7 @@ class O3ThreadContext : public ThreadContext virtual int flattenIntIndex(int reg); virtual int flattenFloatIndex(int reg); + virtual int flattenCCIndex(int reg); /** Returns the number of consecutive store conditional failures. */ // @todo: Figure out where these store cond failures should go. @@ -283,6 +293,9 @@ class O3ThreadContext : public ThreadContext virtual FloatRegBits readFloatRegBitsFlat(int idx); virtual void setFloatRegBitsFlat(int idx, FloatRegBits val); + + virtual CCReg readCCRegFlat(int idx); + virtual void setCCRegFlat(int idx, CCReg val); }; #endif |