diff options
Diffstat (limited to 'src/arch/x86')
| -rw-r--r-- | src/arch/x86/isa/decoder/two_byte_opcodes.isa | 4 | ||||
| -rw-r--r-- | src/arch/x86/isa/insts/simd128/floating_point/data_transfer/move_non_temporal.py | 28 |
2 files changed, 22 insertions, 10 deletions
diff --git a/src/arch/x86/isa/decoder/two_byte_opcodes.isa b/src/arch/x86/isa/decoder/two_byte_opcodes.isa index 348bff32e..dfb748efb 100644 --- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa +++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa @@ -383,6 +383,8 @@ 0x0: MOVAPS(Vq,Wq); 0x1: MOVAPS(Wq,Vq); 0x2: CVTPI2PS(Vq,Qq); + //Non-temporal hint is ignored since we don't have + //proper support for it in the memory system. 0x3: MOVNTPS(Mq,Vq); 0x4: CVTTPS2PI(Pq,Wq); 0x5: CVTPS2PI(Pq,Wq); @@ -401,6 +403,8 @@ 0x0: MOVAPD(Vo,Wo); 0x1: MOVAPD(Wo,Vo); 0x2: CVTPI2PD(Vo,Qq); + //Non-temporal hint is ignored since we don't have + //proper support for it in the memory system. 0x3: MOVNTPD(Mq,Vq); 0x4: CVTTPD2PI(Pq,Wo); 0x5: CVTPD2PI(Pq,Wo); diff --git a/src/arch/x86/isa/insts/simd128/floating_point/data_transfer/move_non_temporal.py b/src/arch/x86/isa/insts/simd128/floating_point/data_transfer/move_non_temporal.py index a6e392ffd..06dba5975 100644 --- a/src/arch/x86/isa/insts/simd128/floating_point/data_transfer/move_non_temporal.py +++ b/src/arch/x86/isa/insts/simd128/floating_point/data_transfer/move_non_temporal.py @@ -40,29 +40,37 @@ microcode = ''' # movntps is basically the same as movaps, excepting the caching hint and # ordering constraints +# We are ignoring the non-temporal hint. def macroop MOVNTPS_M_XMM { - # Check low address. - stfp xmmh, seg, sib, "DISPLACEMENT + 8", dataSize=8, uncacheable=True - stfp xmml, seg, sib, disp, dataSize=8, uncacheable=True + warn_once "MOVNTPS: Ignoring non-temporal hint, modeling as cacheable!" + cda seg, sib, "DISPLACEMENT + 8", dataSize=8 + stfp xmmh, seg, sib, "DISPLACEMENT + 8", dataSize=8 + stfp xmml, seg, sib, disp, dataSize=8 }; def macroop MOVNTPS_P_XMM { + warn_once "MOVNTPS_P: Ignoring non-temporal hint, modeling as cacheable!" rdip t7 - # Check low address. - stfp xmmh, seg, riprel, "DISPLACEMENT + 8", dataSize=8, uncacheable=True - stfp xmml, seg, riprel, disp, dataSize=8, uncacheable=True + cda seg, riprel, "DISPLACEMENT + 8", dataSize=8 + stfp xmmh, seg, riprel, "DISPLACEMENT + 8", dataSize=8 + stfp xmml, seg, riprel, disp, dataSize=8 }; # movntpd is basically the same as movapd, excepting the caching hint and # ordering constraints +# We are ignoring the non-temporal hint. def macroop MOVNTPD_M_XMM { - stfp xmml, seg, sib, "DISPLACEMENT", dataSize=8, uncacheable=True - stfp xmmh, seg, sib, "DISPLACEMENT + 8", dataSize=8, uncacheable=True + warn_once "MOVNTPD: Ignoring non-temporal hint, modeling as cacheable!" + cda seg, sib, "DISPLACEMENT + 8", dataSize=8 + stfp xmml, seg, sib, "DISPLACEMENT", dataSize=8 + stfp xmmh, seg, sib, "DISPLACEMENT + 8", dataSize=8 }; def macroop MOVNTPD_P_XMM { + warn_once "MOVNTPD_P: Ignoring non-temporal hint, modeling as cacheable!" rdip t7 - stfp xmml, seg, riprel, "DISPLACEMENT", dataSize=8, uncacheable=True - stfp xmmh, seg, riprel, "DISPLACEMENT + 8", dataSize=8, uncacheable=True + cda seg, riprel, "DISPLACEMENT + 8", dataSize=8 + stfp xmml, seg, riprel, "DISPLACEMENT", dataSize=8 + stfp xmmh, seg, riprel, "DISPLACEMENT + 8", dataSize=8 }; ''' |