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target-ppc: Add xscmpoqp and xscmpuqp instructions 

xscmpoqp - VSX Scalar Compare Ordered Quad-Precision
xscmpuqp - VSX Scalar Compare Unordered Quad-Precision

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>
master
Bharata B Rao 2016-11-23 17:07:14 +05:30 committed by David Gibson
parent 3a20d11d45
commit be0a4faf35
4 changed files with 60 additions and 0 deletions
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54
target/ppc/fpu_helper.c
View File

@ -2519,6 +2519,60 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \
VSX_SCALAR_CMP(xscmpodp, 1)
VSX_SCALAR_CMP(xscmpudp, 0)
#define VSX_SCALAR_CMPQ(op, ordered) \
void helper_##op(CPUPPCState *env, uint32_t opcode) \
{ \
ppc_vsr_t xa, xb; \
uint32_t cc = 0; \
bool vxsnan_flag = false, vxvc_flag = false; \
float128 a, b; \
\
helper_reset_fpstatus(env); \
getVSR(rA(opcode) + 32, &xa, env); \
getVSR(rB(opcode) + 32, &xb, env); \
\
a = make_float128(xa.VsrD(0), xa.VsrD(1)); \
b = make_float128(xb.VsrD(0), xb.VsrD(1)); \
\
if (float128_is_signaling_nan(a, &env->fp_status) || \
float128_is_signaling_nan(b, &env->fp_status)) { \
vxsnan_flag = true; \
cc = CRF_SO; \
if (fpscr_ve == 0 && ordered) { \
vxvc_flag = true; \
} \
} else if (float128_is_quiet_nan(a, &env->fp_status) || \
float128_is_quiet_nan(b, &env->fp_status)) { \
cc = CRF_SO; \
if (ordered) { \
vxvc_flag = true; \
} \
} \
if (vxsnan_flag) { \
float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 0); \
} \
if (vxvc_flag) { \
float_invalid_op_excp(env, POWERPC_EXCP_FP_VXVC, 0); \
} \
\
if (float128_lt(a, b, &env->fp_status)) { \
cc |= CRF_LT; \
} else if (!float128_le(a, b, &env->fp_status)) { \
cc |= CRF_GT; \
} else { \
cc |= CRF_EQ; \
} \
\
env->fpscr &= ~(0x0F << FPSCR_FPRF); \
env->fpscr |= cc << FPSCR_FPRF; \
env->crf[BF(opcode)] = cc; \
\
float_check_status(env); \
}
VSX_SCALAR_CMPQ(xscmpoqp, 1)
VSX_SCALAR_CMPQ(xscmpuqp, 0)
/* VSX_MAX_MIN - VSX floating point maximum/minimum
* name - instruction mnemonic
* op - operation (max or min)

2
target/ppc/helper.h
View File

@ -403,6 +403,8 @@ DEF_HELPER_2(xscmpexpdp, void, env, i32)
DEF_HELPER_2(xscmpexpqp, void, env, i32)
DEF_HELPER_2(xscmpodp, void, env, i32)
DEF_HELPER_2(xscmpudp, void, env, i32)
DEF_HELPER_2(xscmpoqp, void, env, i32)
DEF_HELPER_2(xscmpuqp, void, env, i32)
DEF_HELPER_2(xsmaxdp, void, env, i32)
DEF_HELPER_2(xsmindp, void, env, i32)
DEF_HELPER_2(xscvdpsp, void, env, i32)

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

@ -628,6 +628,8 @@ GEN_VSX_HELPER_2(xscmpexpdp, 0x0C, 0x07, 0, PPC2_ISA300)
GEN_VSX_HELPER_2(xscmpexpqp, 0x04, 0x05, 0, PPC2_ISA300)
GEN_VSX_HELPER_2(xscmpodp, 0x0C, 0x05, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xscmpudp, 0x0C, 0x04, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xscmpoqp, 0x04, 0x04, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xscmpuqp, 0x04, 0x14, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xsmaxdp, 0x00, 0x14, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xsmindp, 0x00, 0x15, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xscvdpsp, 0x12, 0x10, 0, PPC2_VSX)

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

@ -126,6 +126,8 @@ GEN_XX3FORM(xscmpexpdp, 0x0C, 0x07, PPC2_ISA300),
GEN_VSX_XFORM_300(xscmpexpqp, 0x04, 0x05, 0x00600001),
GEN_XX2IFORM(xscmpodp, 0x0C, 0x05, PPC2_VSX),
GEN_XX2IFORM(xscmpudp, 0x0C, 0x04, PPC2_VSX),
GEN_VSX_XFORM_300(xscmpoqp, 0x04, 0x04, 0x00600001),
GEN_VSX_XFORM_300(xscmpuqp, 0x04, 0x14, 0x00600001),
GEN_XX3FORM(xsmaxdp, 0x00, 0x14, PPC2_VSX),
GEN_XX3FORM(xsmindp, 0x00, 0x15, PPC2_VSX),
GEN_XX2FORM(xscvdpsp, 0x12, 0x10, PPC2_VSX),