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-rw-r--r--target/ppc/fpu_helper.c34
-rw-r--r--target/ppc/helper.h1
-rw-r--r--target/ppc/translate/vsx-impl.inc.c1
-rw-r--r--target/ppc/translate/vsx-ops.inc.c1
4 files changed, 37 insertions, 0 deletions
diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c
index 5c34438d1d..48973a9db8 100644
--- a/target/ppc/fpu_helper.c
+++ b/target/ppc/fpu_helper.c
@@ -3430,3 +3430,37 @@ void helper_xssqrtqp(CPUPPCState *env, uint32_t opcode)
putVSR(rD(opcode) + 32, &xt, env);
float_check_status(env);
}
+
+void helper_xssubqp(CPUPPCState *env, uint32_t opcode)
+{
+ ppc_vsr_t xt, xa, xb;
+ float_status tstat;
+
+ getVSR(rA(opcode) + 32, &xa, env);
+ getVSR(rB(opcode) + 32, &xb, env);
+ getVSR(rD(opcode) + 32, &xt, env);
+ helper_reset_fpstatus(env);
+
+ if (unlikely(Rc(opcode) != 0)) {
+ /* TODO: Support xssubqp after round-to-odd is implemented */
+ abort();
+ }
+
+ tstat = env->fp_status;
+ set_float_exception_flags(0, &tstat);
+ xt.f128 = float128_sub(xa.f128, xb.f128, &tstat);
+ env->fp_status.float_exception_flags |= tstat.float_exception_flags;
+
+ if (unlikely(tstat.float_exception_flags & float_flag_invalid)) {
+ if (float128_is_infinity(xa.f128) && float128_is_infinity(xb.f128)) {
+ float_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI, 1);
+ } else if (float128_is_signaling_nan(xa.f128, &tstat) ||
+ float128_is_signaling_nan(xb.f128, &tstat)) {
+ float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
+ }
+ }
+
+ helper_compute_fprf_float128(env, xt.f128);
+ putVSR(rD(opcode) + 32, &xt, env);
+ float_check_status(env);
+}
diff --git a/target/ppc/helper.h b/target/ppc/helper.h
index fbf80a75f4..3956fd135f 100644
--- a/target/ppc/helper.h
+++ b/target/ppc/helper.h
@@ -462,6 +462,7 @@ DEF_HELPER_2(xsrdpiz, void, env, i32)
DEF_HELPER_2(xsrqpi, void, env, i32)
DEF_HELPER_2(xsrqpxp, void, env, i32)
DEF_HELPER_2(xssqrtqp, void, env, i32)
+DEF_HELPER_2(xssubqp, void, env, i32)
DEF_HELPER_2(xsaddsp, void, env, i32)
DEF_HELPER_2(xssubsp, void, env, i32)
diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx-impl.inc.c
index bbd7d1adb9..a062203e3a 100644
--- a/target/ppc/translate/vsx-impl.inc.c
+++ b/target/ppc/translate/vsx-impl.inc.c
@@ -836,6 +836,7 @@ GEN_VSX_HELPER_XT_XB_ENV(xsrsp, 0x12, 0x11, 0, PPC2_VSX207)
GEN_VSX_HELPER_2(xsrqpi, 0x05, 0x00, 0, PPC2_ISA300)
GEN_VSX_HELPER_2(xsrqpxp, 0x05, 0x01, 0, PPC2_ISA300)
GEN_VSX_HELPER_2(xssqrtqp, 0x04, 0x19, 0x1B, PPC2_ISA300)
+GEN_VSX_HELPER_2(xssubqp, 0x04, 0x10, 0, PPC2_ISA300)
GEN_VSX_HELPER_2(xsaddsp, 0x00, 0x00, 0, PPC2_VSX207)
GEN_VSX_HELPER_2(xssubsp, 0x00, 0x01, 0, PPC2_VSX207)
diff --git a/target/ppc/translate/vsx-ops.inc.c b/target/ppc/translate/vsx-ops.inc.c
index bac3db22e7..2202c0ffa3 100644
--- a/target/ppc/translate/vsx-ops.inc.c
+++ b/target/ppc/translate/vsx-ops.inc.c
@@ -116,6 +116,7 @@ GEN_VSX_XFORM_300_EO(name, opc2, opc3 | 0x18, opc4 | 0x1, inval)
GEN_VSX_Z23FORM_300(xsrqpi, 0x05, 0x0, 0x0, 0x0),
GEN_VSX_Z23FORM_300(xsrqpxp, 0x05, 0x1, 0x0, 0x0),
GEN_VSX_XFORM_300_EO(xssqrtqp, 0x04, 0x19, 0x1B, 0x00000001),
+GEN_VSX_XFORM_300(xssubqp, 0x04, 0x10, 0x0),
GEN_XX2FORM(xsabsdp, 0x12, 0x15, PPC2_VSX),
GEN_XX2FORM(xsnabsdp, 0x12, 0x16, PPC2_VSX),