This patch adds the VSX floating point divide instructions defined
by V2.06 of the PowerPC ISA: xsdivdp, xvdivdp, xvdivsp.
Signed-off-by: Tom Musta tommu...@gmail.com
---
target-ppc/fpu_helper.c | 52 +++
target-ppc/helper.h |3 ++
target-ppc/translate.c |6 +
3 files changed, 61 insertions(+), 0 deletions(-)
diff --git a/target-ppc/fpu_helper.c b/target-ppc/fpu_helper.c
index 8135325..85661cf 100644
--- a/target-ppc/fpu_helper.c
+++ b/target-ppc/fpu_helper.c
@@ -1897,3 +1897,55 @@ void helper_##op(CPUPPCState *env, uint32_t opcode)
\
VSX_MUL(xsmuldp, 1, float64, f64, 1)
VSX_MUL(xvmuldp, 2, float64, f64, 0)
VSX_MUL(xvmulsp, 4, float32, f32, 0)
+
+/* VSX_DIV - VSX floating point divide
+ * 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_DIV(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++) { \
+if (unlikely(tp##_is_infinity(xa.fld[i])\
+ tp##_is_infinity(xb.fld[i]))) { \
+xt.fld[i] = float64_to_##tp( \
+fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXIDI, \
+ sfprf), \
+env-fp_status); \
+} else if (unlikely(tp##_is_zero(xa.fld[i]) \
+tp##_is_zero(xb.fld[i]))) { \
+xt.fld[i] = float64_to_##tp( \
+fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXZDZ, \
+ sfprf), \
+ env-fp_status);\
+} else { \
+if (unlikely(tp##_is_signaling_nan(xa.fld[i]) || \
+ tp##_is_signaling_nan(xb.fld[i]))) { \
+fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, sfprf);\
+} \
+xt.fld[i] = tp##_div(xa.fld[i], xb.fld[i],\
+env-fp_status); \
+if (sfprf) { \
+helper_compute_fprf(env, xt.fld[i], sfprf); \
+} \
+} \
+} \
+ \
+putVSR(xT(opcode), xt, env); \
+helper_float_check_status(env); \
+}
+
+VSX_DIV(xsdivdp, 1, float64, f64, 1)
+VSX_DIV(xvdivdp, 2, float64, f64, 0)
+VSX_DIV(xvdivsp, 4, float32, f32, 0)
diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index a76b159..c2d3a16 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -254,14 +254,17 @@ 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(xsdivdp, 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(xvdivdp, 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(xvdivsp, void, env, i32)
DEF_HELPER_2(efscfsi, i32, env, i32)
DEF_HELPER_2(efscfui, i32, env, i32)
diff
