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target-ppc: Add xxperm and xxpermr instructions 

xxperm:  VSX Vector Permute
xxpermr: VSX Vector Permute Right-indexed

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Bharata B Rao 2016-12-07 23:55:02 +05:30 committed by David Gibson
parent 014ed3bb20
commit 234068abfb
4 changed files with 29 additions and 0 deletions
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23
target/ppc/fpu_helper.c
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@ -2869,3 +2869,26 @@ uint64_t helper_xsrsp(CPUPPCState *env, uint64_t xb)
float_check_status(env);
return xt;
}
#define VSX_XXPERM(op, indexed) \
void helper_##op(CPUPPCState *env, uint32_t opcode) \
{ \
ppc_vsr_t xt, xa, pcv, xto; \
int i, idx; \
\
getVSR(xA(opcode), &xa, env); \
getVSR(xT(opcode), &xt, env); \
getVSR(xB(opcode), &pcv, env); \
\
for (i = 0; i < 16; i++) { \
idx = pcv.VsrB(i) & 0x1F; \
if (indexed) { \
idx = 31 - idx; \
} \
xto.VsrB(i) = (idx <= 15) ? xa.VsrB(idx) : xt.VsrB(idx - 16); \
} \
putVSR(xT(opcode), &xto, env); \
}
VSX_XXPERM(xxperm, 0)
VSX_XXPERM(xxpermr, 1)

2
target/ppc/helper.h
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@ -527,6 +527,8 @@ DEF_HELPER_2(xvrspic, void, env, i32)
DEF_HELPER_2(xvrspim, void, env, i32)
DEF_HELPER_2(xvrspip, void, env, i32)
DEF_HELPER_2(xvrspiz, void, env, i32)
DEF_HELPER_2(xxperm, void, env, i32)
DEF_HELPER_2(xxpermr, void, env, i32)
DEF_HELPER_2(efscfsi, i32, env, i32)
DEF_HELPER_2(efscfui, i32, env, i32)

2
target/ppc/translate/vsx-impl.inc.c
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@ -883,6 +883,8 @@ GEN_VSX_HELPER_2(xvrspic, 0x16, 0x0A, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvrspim, 0x12, 0x0B, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvrspip, 0x12, 0x0A, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvrspiz, 0x12, 0x09, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xxperm, 0x08, 0x03, 0, PPC2_ISA300)
GEN_VSX_HELPER_2(xxpermr, 0x08, 0x07, 0, PPC2_ISA300)
static void gen_xxbrd(DisasContext *ctx)
{

2
target/ppc/translate/vsx-ops.inc.c
View File

@ -267,6 +267,8 @@ VSX_LOGICAL(xxlnand, 0x8, 0x16, PPC2_VSX207),
VSX_LOGICAL(xxlorc, 0x8, 0x15, PPC2_VSX207),
GEN_XX3FORM(xxmrghw, 0x08, 0x02, PPC2_VSX),
GEN_XX3FORM(xxmrglw, 0x08, 0x06, PPC2_VSX),
GEN_XX3FORM(xxperm, 0x08, 0x03, PPC2_ISA300),
GEN_XX3FORM(xxpermr, 0x08, 0x07, PPC2_ISA300),
GEN_XX2FORM(xxspltw, 0x08, 0x0A, PPC2_VSX),
GEN_XX1FORM(xxspltib, 0x08, 0x0B, PPC2_ISA300),
GEN_XX3FORM_DM(xxsldwi, 0x08, 0x00),