From: Tom Musta <tommu...@gmail.com>
This patch adds the VSX floating point multiply instructions defined
by V2.06 of the PowerPC ISA: xsmuldp, xvmuldp, xvmulsp.
Signed-off-by: Tom Musta <tommu...@gmail.com>
Reviewed-by: Richard Henderson <r...@twiddle.net>
Signed-off-by: Alexander Graf <ag...@suse.de>
---
target-ppc/fpu_helper.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
target-ppc/helper.h | 3 +++
target-ppc/translate.c | 6 ++++++
3 files changed, 56 insertions(+)
diff --git a/target-ppc/fpu_helper.c b/target-ppc/fpu_helper.c
index 74c1ce1..51ca589 100644
--- a/target-ppc/fpu_helper.c
+++ b/target-ppc/fpu_helper.c
@@ -1808,3 +1808,50 @@ VSX_ADD_SUB(xvaddsp, add, 4, float32, f32, 0)
VSX_ADD_SUB(xssubdp, sub, 1, float64, f64, 1)
VSX_ADD_SUB(xvsubdp, sub, 2, float64, f64, 0)
VSX_ADD_SUB(xvsubsp, sub, 4, float32, f32, 0)
+
+/* VSX_MUL - VSX floating point multiply
+ * op - instruction mnemonic
+ * nels - number of elements (1, 2 or 4)
+ * tp - type (float32 or float64)
+ * fld - vsr_t field (f32 or f64)
+ * sfprf - set FPRF
+ */
+#define VSX_MUL(op, nels, tp, fld, sfprf) \
+void helper_##op(CPUPPCState *env, uint32_t opcode) \
+{ \
+ ppc_vsr_t xt, xa, xb; \
+ int i; \
+ \
+ getVSR(xA(opcode), &xa, env); \
+ getVSR(xB(opcode), &xb, env); \
+ getVSR(xT(opcode), &xt, env); \
+ helper_reset_fpstatus(env); \
+ \
+ for (i = 0; i < nels; i++) { \
+ float_status tstat = env->fp_status; \
+ set_float_exception_flags(0, &tstat); \
+ xt.fld[i] = tp##_mul(xa.fld[i], xb.fld[i], &tstat); \
+ env->fp_status.float_exception_flags |= tstat.float_exception_flags; \
+ \
+ if (unlikely(tstat.float_exception_flags & float_flag_invalid)) { \
+ if ((tp##_is_infinity(xa.fld[i]) && tp##_is_zero(xb.fld[i])) || \
+ (tp##_is_infinity(xb.fld[i]) && tp##_is_zero(xa.fld[i]))) { \
+ fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ, sfprf); \
+ } else if (tp##_is_signaling_nan(xa.fld[i]) || \
+ tp##_is_signaling_nan(xb.fld[i])) { \
+ fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, sfprf); \
+ } \
+ } \
+ \
+ if (sfprf) { \
+ helper_compute_fprf(env, xt.fld[i], sfprf); \
+ } \
+ } \
+ \
+ putVSR(xT(opcode), &xt, env); \
+ helper_float_check_status(env); \
+}
+
+VSX_MUL(xsmuldp, 1, float64, f64, 1)
+VSX_MUL(xvmuldp, 2, float64, f64, 0)
+VSX_MUL(xvmulsp, 4, float32, f32, 0)
diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index 966200d..ecb900f 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -253,12 +253,15 @@ DEF_HELPER_4(vctsxs, void, env, avr, avr, i32)
DEF_HELPER_2(xsadddp, void, env, i32)
DEF_HELPER_2(xssubdp, void, env, i32)
+DEF_HELPER_2(xsmuldp, void, env, i32)
DEF_HELPER_2(xvadddp, void, env, i32)
DEF_HELPER_2(xvsubdp, void, env, i32)
+DEF_HELPER_2(xvmuldp, void, env, i32)
DEF_HELPER_2(xvaddsp, void, env, i32)
DEF_HELPER_2(xvsubsp, void, env, i32)
+DEF_HELPER_2(xvmulsp, void, env, i32)
DEF_HELPER_2(efscfsi, i32, env, i32)
DEF_HELPER_2(efscfui, i32, env, i32)
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 9b4e8b1..bf15f91 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -7306,12 +7306,15 @@ static void gen_##name(DisasContext * ctx)
\
GEN_VSX_HELPER_2(xsadddp, 0x00, 0x04, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xssubdp, 0x00, 0x05, 0, PPC2_VSX)
+GEN_VSX_HELPER_2(xsmuldp, 0x00, 0x06, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvadddp, 0x00, 0x0C, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvsubdp, 0x00, 0x0D, 0, PPC2_VSX)
+GEN_VSX_HELPER_2(xvmuldp, 0x00, 0x0E, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvaddsp, 0x00, 0x08, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvsubsp, 0x00, 0x09, 0, PPC2_VSX)
+GEN_VSX_HELPER_2(xvmulsp, 0x00, 0x0A, 0, PPC2_VSX)
#define VSX_LOGICAL(name, tcg_op) \
static void glue(gen_, name)(DisasContext * ctx) \
@@ -9996,12 +9999,15 @@ GEN_XX3FORM(xvcpsgnsp, 0x00, 0x1A, PPC2_VSX),
GEN_XX3FORM(xsadddp, 0x00, 0x04, PPC2_VSX),
GEN_XX3FORM(xssubdp, 0x00, 0x05, PPC2_VSX),
+GEN_XX3FORM(xsmuldp, 0x00, 0x06, PPC2_VSX),
GEN_XX3FORM(xvadddp, 0x00, 0x0C, PPC2_VSX),
GEN_XX3FORM(xvsubdp, 0x00, 0x0D, PPC2_VSX),
+GEN_XX3FORM(xvmuldp, 0x00, 0x0E, PPC2_VSX),
GEN_XX3FORM(xvaddsp, 0x00, 0x08, PPC2_VSX),
GEN_XX3FORM(xvsubsp, 0x00, 0x09, PPC2_VSX),
+GEN_XX3FORM(xvmulsp, 0x00, 0x0A, PPC2_VSX),
#undef VSX_LOGICAL
#define VSX_LOGICAL(name, opc2, opc3, fl2) \
--
1.8.1.4
