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arch-x86: Add hsub instructions to x86

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Implemented hsubpd and hsubps instructions from x86.

Issue-on: https://gem5.atlassian.net/browse/GEM5-181
Change-Id: I62919017d3c00119123bda89b2f99cb3bf0b55a8
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/26123
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Mahyar Samani
2020-03-03 19:32:19 +00:00
parent ca11bfb20e
commit f17fbee4ce
2 changed files with 49 additions and 4 deletions
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4
src/arch/x86/isa/decoder/two_byte_opcodes.isa
View File

@@ -691,7 +691,7 @@
// operand size (0x66)
0x1: decode OPCODE_OP_BOTTOM3 {
0x4: HADDPD(Vo,Wo);
0x5: WarnUnimpl::hsubpd_Vo_Wo();
0x5: HSUBPD(Vo, Wo);
0x6: MOVD(Edp,Vd);
0x7: MOVDQA(Wo,Vo);
default: UD2();
@@ -699,7 +699,7 @@
// repne (0xF2)
0x8: decode OPCODE_OP_BOTTOM3 {
0x4: HADDPS(Vo,Wo);
0x5: WarnUnimpl::hsubps_Vo_Wo();
0x5: HSUBPS(Vo, Wo);
default: UD2();
}
default: UD2();

49
src/arch/x86/isa/insts/simd128/floating_point/arithmetic/horizontal_subtraction.py
View File

@@ -34,6 +34,51 @@
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
microcode = '''
# HSUBPS
# HSUBPD
def macroop HSUBPS_XMM_XMM {
shuffle ufp1, xmml, xmmh, ext=((0 << 0) | (2 << 2)), size=4
shuffle ufp2, xmml, xmmh, ext=((1 << 0) | (3 << 2)), size=4
shuffle ufp3, xmmlm, xmmhm, ext=((0 << 0) | (2 << 2)), size=4
shuffle ufp4, xmmlm, xmmhm, ext=((1 << 0) | (3 << 2)), size=4
msubf xmml, ufp1, ufp2, size=4
msubf xmmh, ufp3, ufp4, size=4
};
def macroop HSUBPS_XMM_M {
ldfp ufp1, seg, sib, disp, dataSize=8
ldfp ufp2, seg, sib, "DISPLACEMENT+8", dataSize=8
shuffle ufp3, xmml, xmmh, ext=((0 << 0) | (2 << 2)), size=4
shuffle ufp4, xmml, xmmh, ext=((1 << 0) | (3 << 2)), size=4
shuffle ufp5, ufp1, ufp2, ext=((0 << 0) | (2 << 2)), size=4
shuffle ufp6, ufp1, ufp2, ext=((1 << 0) | (3 << 2)), size=4
msubf xmml, ufp3, ufp4, size=4
msubf xmmh, ufp5, ufp6, size=4
};
def macroop HSUBPS_XMM_P {
rdip t7
ldfp ufp1, seg, riprel, disp, dataSize=8
ldfp ufp2, seg, riprel, "DISPLACEMENT+8", dataSize=8
shuffle ufp3, xmml, xmmh, ext=((0 << 0) | (2 << 2)), size=4
shuffle ufp4, xmml, xmmh, ext=((1 << 0) | (3 << 2)), size=4
shuffle ufp5, ufp1, ufp2, ext=((0 << 0) | (2 << 2)), size=4
shuffle ufp6, ufp1, ufp2, ext=((1 << 0) | (3 << 2)), size=4
msubf xmml, ufp3, ufp4, size=4
msubf xmmh, ufp5, ufp6, size=4
};
def macroop HSUBPD_XMM_XMM {
msubf ufp1, xmmh , xmml, size=8, ext=Scalar
msubf xmmh, xmmlm, xmmhm, size=8, ext=Scalar
movfp xmml, ufp1
};
def macroop HSUBPD_XMM_M {
ldfp ufp1, seg, sib, disp, dataSize=8
ldfp ufp2, seg, sib, "DISPLACEMENT+8", dataSize=8
msubf xmml, xmml, xmmh, size=8, ext=Scalar
msubf xmmh, ufp1, ufp2, size=8, ext=Scalar
};
def macroop HSUBPD_XMM_P {
rdip t7
ldfp ufp1, seg, riprel, disp, dataSize=8
ldfp ufp2, seg, riprel, "DISPLACEMENT+8", dataSize=8
msubf xmml, xmml, xmmh, size=8, ext=Scalar
msubf xmmh, ufp1, ufp2, size=8, ext=Scalar
};
'''