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[Qemu-devel] [PATCH 04/19] Add VSX ISA2.06 xadd Instructions
From: |
Tom Musta |
Subject: |
[Qemu-devel] [PATCH 04/19] Add VSX ISA2.06 xadd Instructions |
Date: |
Thu, 24 Oct 2013 11:20:05 -0500 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.0.1 |
This patch adds the VSX floating point add instructions that are
defined by V2.06 of the PowerPC ISA: xsadddp, xvadddp and xvaddsp.
Signed-off-by: Tom Musta <address@hidden>
---
target-ppc/fpu_helper.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
target-ppc/helper.h | 6 ++++++
target-ppc/translate.c | 12 ++++++++++++
3 files changed, 64 insertions(+), 0 deletions(-)
diff --git a/target-ppc/fpu_helper.c b/target-ppc/fpu_helper.c
index cea94ac..8cbc905 100644
--- a/target-ppc/fpu_helper.c
+++ b/target-ppc/fpu_helper.c
@@ -1758,3 +1758,49 @@ static void putVSR(int n, ppc_vsr_t *vsr, CPUPPCState
*env)
}
#define float64_to_float64(x, env) x
+
+/* VSX_ADD - VSX floating point add
+ * 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_ADD(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]) && \
+ tp##_is_neg(xa.fld[i]) != tp##_is_neg(xb.fld[i]))) { \
+ xt.fld[i] = float64_to_##tp( \
+ fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI, \
+ 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##_add(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_ADD(xsadddp, 1, float64, f64, 1)
+VSX_ADD(xvadddp, 2, float64, f64, 0)
+VSX_ADD(xvaddsp, 4, float32, f32, 0)
diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index 56814b5..30e6aa4 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -251,6 +251,12 @@ DEF_HELPER_4(vcfsx, void, env, avr, avr, i32)
DEF_HELPER_4(vctuxs, void, env, avr, avr, i32)
DEF_HELPER_4(vctsxs, void, env, avr, avr, i32)
+DEF_HELPER_2(xsadddp, void, env, i32)
+
+DEF_HELPER_2(xvadddp, void, env, i32)
+
+DEF_HELPER_2(xvaddsp, void, env, i32)
+
DEF_HELPER_2(efscfsi, i32, env, i32)
DEF_HELPER_2(efscfui, i32, env, i32)
DEF_HELPER_2(efscfuf, i32, env, i32)
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 5b51c0c..7aa17e1 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -7293,6 +7293,12 @@ static void gen_##name(DisasContext * ctx)
\
tcg_temp_free_i32(opc); \
}
+GEN_VSX_HELPER_2(xsadddp, 0x00, 0x04, 0, PPC2_VSX)
+
+GEN_VSX_HELPER_2(xvadddp, 0x00, 0x0C, 0, PPC2_VSX)
+
+GEN_VSX_HELPER_2(xvaddsp, 0x00, 0x08, 0, PPC2_VSX)
+
#define VSX_LOGICAL(name, tcg_op) \
static void glue(gen_, name)(DisasContext * ctx) \
{ \
@@ -9975,6 +9981,12 @@ GEN_XX2FORM(xvnabssp, 0x12, 0x1A, PPC2_VSX),
GEN_XX2FORM(xvnegsp, 0x12, 0x1B, PPC2_VSX),
GEN_XX3FORM(xvcpsgnsp, 0x00, 0x1A, PPC2_VSX),
+GEN_XX3FORM(xsadddp, 0x00, 0x04, PPC2_VSX),
+
+GEN_XX3FORM(xvadddp, 0x00, 0x0C, PPC2_VSX),
+
+GEN_XX3FORM(xvaddsp, 0x00, 0x08, PPC2_VSX),
+
#undef VSX_LOGICAL
#define VSX_LOGICAL(name, opc2, opc3, fl2) \
GEN_XX3FORM(name, opc2, opc3, fl2)
--
1.7.1
- [Qemu-devel] [PATCH 00/19] PowerPC VSX Stage 3, Tom Musta, 2013/10/24
- [Qemu-devel] [PATCH 04/19] Add VSX ISA2.06 xadd Instructions,
Tom Musta <=
- [Qemu-devel] [PATCH 05/19] Add VSX ISA2.06 xsub Instructions, Tom Musta, 2013/10/24
- [Qemu-devel] [PATCH 06/19] Add VSX ISA2.06 xmul Instructions, Tom Musta, 2013/10/24
- [Qemu-devel] [PATCH 07/19] Add VSX ISA2.06 xdiv Instructions, Tom Musta, 2013/10/24
- [Qemu-devel] [PATCH 09/19] Add VSX ISA2.06 xsqrt Instructions, Tom Musta, 2013/10/24
- [Qemu-devel] [PATCH 08/19] Add VSX ISA2.06 xre Instructions, Tom Musta, 2013/10/24