From: Tom Musta <tommusta@gmail.com>
To: QEMU Developers <qemu-devel@nongnu.org>
Cc: Tom Musta <tommusta@gmail.com>,
"qemu-ppc@nongnu.org" <qemu-ppc@nongnu.org>
Subject: [Qemu-devel] [PATCH 17/19] Add VSX Floating Point to Floating Point Conversion Instructions
Date: Thu, 24 Oct 2013 11:27:08 -0500 [thread overview]
Message-ID: <52694A5C.6080300@gmail.com> (raw)
In-Reply-To: <526947CA.4020504@gmail.com>
This patch adds the VSX instructions that convert between floating
point formats: xscvdpsp, xscvspdp, xvcvdpsp, xvcvspdp.
Signed-off-by: Tom Musta <tommusta@gmail.com>
---
target-ppc/fpu_helper.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
target-ppc/helper.h | 4 ++++
target-ppc/translate.c | 8 ++++++++
3 files changed, 58 insertions(+), 0 deletions(-)
diff --git a/target-ppc/fpu_helper.c b/target-ppc/fpu_helper.c
index 7bcd213..44d9309 100644
--- a/target-ppc/fpu_helper.c
+++ b/target-ppc/fpu_helper.c
@@ -2543,3 +2543,49 @@ VSX_CMP(xvcmpgtdp, 2, float64, f64, lt, 1)
VSX_CMP(xvcmpeqsp, 4, float32, f32, eq, 0)
VSX_CMP(xvcmpgesp, 4, float32, f32, le, 1)
VSX_CMP(xvcmpgtsp, 4, float32, f32, lt, 1)
+
+#if defined(HOST_WORDS_BIGENDIAN)
+#define JOFFSET 0
+#else
+#define JOFFSET 1
+#endif
+
+/* VSX_CVT_FP_TO_FP - VSX floating point/floating point conversion
+ * op - instruction mnemonic
+ * nels - number of elements (1, 2 or 4)
+ * stp - source type (float32 or float64)
+ * ttp - target type (float32 or float64)
+ * sfld - source vsr_t field
+ * tfld - target vsr_t field (f32 or f64)
+ * sfprf - set FPRF
+ */
+#define VSX_CVT_FP_TO_FP(op, nels, stp, ttp, sfld, tfld, sfprf) \
+void helper_##op(CPUPPCState *env, uint32_t opcode) \
+{ \
+ ppc_vsr_t xt, xb; \
+ int i; \
+ \
+ getVSR(xB(opcode), &xb, env); \
+ getVSR(xT(opcode), &xt, env); \
+ \
+ for (i = 0; i < nels; i++) { \
+ int j = 2*i + JOFFSET; \
+ xt.tfld = stp##_to_##ttp(xb.sfld, &env->fp_status); \
+ if (unlikely(stp##_is_signaling_nan(xb.sfld))) { \
+ fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 0); \
+ xt.tfld = ttp##_snan_to_qnan(xt.tfld); \
+ } \
+ if (sfprf) { \
+ helper_compute_fprf(env, ttp##_to_float64(xt.tfld, \
+ &env->fp_status), sfprf); \
+ } \
+ } \
+ \
+ putVSR(xT(opcode), &xt, env); \
+ helper_float_check_status(env); \
+}
+
+VSX_CVT_FP_TO_FP(xscvdpsp, 1, float64, float32, f64[i], f32[j], 1)
+VSX_CVT_FP_TO_FP(xscvspdp, 1, float32, float64, f32[j], f64[i], 1)
+VSX_CVT_FP_TO_FP(xvcvdpsp, 2, float64, float32, f64[i], f32[j], 0)
+VSX_CVT_FP_TO_FP(xvcvspdp, 2, float32, float64, f32[j], f64[i], 0)
diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index 333bce4..64b2b2b 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -272,6 +272,8 @@ DEF_HELPER_2(xscmpodp, void, env, i32)
DEF_HELPER_2(xscmpudp, void, env, i32)
DEF_HELPER_2(xsmaxdp, void, env, i32)
DEF_HELPER_2(xsmindp, void, env, i32)
+DEF_HELPER_2(xscvdpsp, void, env, i32)
+DEF_HELPER_2(xscvspdp, void, env, i32)
DEF_HELPER_2(xvadddp, void, env, i32)
DEF_HELPER_2(xvsubdp, void, env, i32)
@@ -295,6 +297,7 @@ DEF_HELPER_2(xvmindp, void, env, i32)
DEF_HELPER_2(xvcmpeqdp, void, env, i32)
DEF_HELPER_2(xvcmpgedp, void, env, i32)
DEF_HELPER_2(xvcmpgtdp, void, env, i32)
+DEF_HELPER_2(xvcvdpsp, void, env, i32)
DEF_HELPER_2(xvaddsp, void, env, i32)
DEF_HELPER_2(xvsubsp, void, env, i32)
@@ -318,6 +321,7 @@ DEF_HELPER_2(xvminsp, void, env, i32)
DEF_HELPER_2(xvcmpeqsp, void, env, i32)
DEF_HELPER_2(xvcmpgesp, void, env, i32)
DEF_HELPER_2(xvcmpgtsp, void, env, i32)
+DEF_HELPER_2(xvcvspdp, 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 46813eb..ddbdeef 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -7314,6 +7314,8 @@ GEN_VSX_HELPER_2(xscmpodp, 0x0C, 0x05, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xscmpudp, 0x0C, 0x04, 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)
+GEN_VSX_HELPER_2(xscvspdp, 0x12, 0x14, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvadddp, 0x00, 0x0C, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvsubdp, 0x00, 0x0D, 0, PPC2_VSX)
@@ -7337,6 +7339,7 @@ GEN_VSX_HELPER_2(xvmindp, 0x00, 0x1D, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvcmpeqdp, 0x0C, 0x0C, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvcmpgtdp, 0x0C, 0x0D, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvcmpgedp, 0x0C, 0x0E, 0, PPC2_VSX)
+GEN_VSX_HELPER_2(xvcvdpsp, 0x12, 0x18, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvaddsp, 0x00, 0x08, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvsubsp, 0x00, 0x09, 0, PPC2_VSX)
@@ -7360,6 +7363,7 @@ GEN_VSX_HELPER_2(xvminsp, 0x00, 0x19, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvcmpeqsp, 0x0C, 0x08, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvcmpgtsp, 0x0C, 0x09, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xvcmpgesp, 0x0C, 0x0A, 0, PPC2_VSX)
+GEN_VSX_HELPER_2(xvcvspdp, 0x12, 0x1C, 0, PPC2_VSX)
#define VSX_LOGICAL(name, tcg_op) \
static void glue(gen_, name)(DisasContext * ctx) \
@@ -10075,6 +10079,8 @@ GEN_XX2FORM(xscmpodp, 0x0C, 0x05, PPC2_VSX),
GEN_XX2FORM(xscmpudp, 0x0C, 0x04, PPC2_VSX),
GEN_XX3FORM(xsmaxdp, 0x00, 0x14, PPC2_VSX),
GEN_XX3FORM(xsmindp, 0x00, 0x15, PPC2_VSX),
+GEN_XX2FORM(xscvdpsp, 0x12, 0x10, PPC2_VSX),
+GEN_XX2FORM(xscvspdp, 0x12, 0x14, PPC2_VSX),
GEN_XX3FORM(xvadddp, 0x00, 0x0C, PPC2_VSX),
GEN_XX3FORM(xvsubdp, 0x00, 0x0D, PPC2_VSX),
@@ -10098,6 +10104,7 @@ GEN_XX3FORM(xvmindp, 0x00, 0x1D, PPC2_VSX),
GEN_XX3_RC_FORM(xvcmpeqdp, 0x0C, 0x0C, PPC2_VSX),
GEN_XX3_RC_FORM(xvcmpgtdp, 0x0C, 0x0D, PPC2_VSX),
GEN_XX3_RC_FORM(xvcmpgedp, 0x0C, 0x0E, PPC2_VSX),
+GEN_XX2FORM(xvcvdpsp, 0x12, 0x18, PPC2_VSX),
GEN_XX3FORM(xvaddsp, 0x00, 0x08, PPC2_VSX),
GEN_XX3FORM(xvsubsp, 0x00, 0x09, PPC2_VSX),
@@ -10121,6 +10128,7 @@ GEN_XX3FORM(xvminsp, 0x00, 0x19, PPC2_VSX),
GEN_XX3_RC_FORM(xvcmpeqsp, 0x0C, 0x08, PPC2_VSX),
GEN_XX3_RC_FORM(xvcmpgtsp, 0x0C, 0x09, PPC2_VSX),
GEN_XX3_RC_FORM(xvcmpgesp, 0x0C, 0x0A, PPC2_VSX),
+GEN_XX2FORM(xvcvspdp, 0x12, 0x1C, PPC2_VSX),
#undef VSX_LOGICAL
#define VSX_LOGICAL(name, opc2, opc3, fl2) \
--
1.7.1
next prev parent reply other threads:[~2013-10-24 16:27 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-24 16:16 [Qemu-devel] [PATCH 00/19] PowerPC VSX Stage 3 Tom Musta
2013-10-24 16:17 ` [Qemu-devel] [PATCH 01/19] Add New softfloat Routines for VSX Tom Musta
2013-10-24 18:34 ` Richard Henderson
2013-10-25 11:34 ` Alex Bennée
2013-10-25 11:44 ` Peter Maydell
2013-10-25 13:09 ` Alex Bennée
2013-10-25 13:24 ` Tom Musta
2013-10-25 11:55 ` Peter Maydell
2013-10-25 13:01 ` Tom Musta
2013-10-25 13:37 ` Peter Maydell
2013-10-24 16:18 ` [Qemu-devel] [PATCH 02/19] Add set_fprf Argument to fload_invalid_op_excp() Tom Musta
2013-10-24 16:19 ` [Qemu-devel] [PATCH 03/19] General Support for VSX Helpers Tom Musta
2013-10-24 18:51 ` Richard Henderson
2013-10-24 20:42 ` Tom Musta
2013-10-24 21:00 ` Richard Henderson
2013-10-24 16:20 ` [Qemu-devel] [PATCH 04/19] Add VSX ISA2.06 xadd Instructions Tom Musta
2013-10-24 19:44 ` Richard Henderson
2013-10-24 16:20 ` [Qemu-devel] [PATCH 05/19] Add VSX ISA2.06 xsub Instructions Tom Musta
2013-10-24 19:48 ` Richard Henderson
2013-10-24 16:21 ` [Qemu-devel] [PATCH 06/19] Add VSX ISA2.06 xmul Instructions Tom Musta
2013-10-24 20:07 ` Richard Henderson
2013-10-24 16:21 ` [Qemu-devel] [PATCH 07/19] Add VSX ISA2.06 xdiv Instructions Tom Musta
2013-10-24 20:08 ` Richard Henderson
2013-10-24 16:22 ` [Qemu-devel] [PATCH 08/19] Add VSX ISA2.06 xre Instructions Tom Musta
2013-10-24 20:11 ` Richard Henderson
2013-10-24 16:22 ` [Qemu-devel] [PATCH 09/19] Add VSX ISA2.06 xsqrt Instructions Tom Musta
2013-10-24 20:23 ` Richard Henderson
2013-10-24 16:23 ` [Qemu-devel] [PATCH 10/19] Add VSX ISA2.06 xrsqrte Instructions Tom Musta
2013-10-24 20:25 ` Richard Henderson
2013-10-24 16:23 ` [Qemu-devel] [PATCH 11/19] Add VSX ISA2.06 xtdiv Instructions Tom Musta
2013-10-24 20:30 ` Richard Henderson
2013-10-24 16:24 ` [Qemu-devel] [PATCH 12/19] Add VSX ISA2.06 xtsqrt Instructions Tom Musta
2013-10-24 20:34 ` Richard Henderson
2013-10-24 16:25 ` [Qemu-devel] [PATCH 13/19] Add VSX ISA2.06 Multiply Add Instructions Tom Musta
2013-10-24 20:38 ` Richard Henderson
2013-10-25 13:49 ` Tom Musta
2013-10-25 16:25 ` Tom Musta
2013-10-25 16:42 ` Richard Henderson
2013-10-25 17:13 ` Tom Musta
2013-10-25 17:29 ` Richard Henderson
2013-10-25 17:20 ` Peter Maydell
2013-10-25 17:34 ` Richard Henderson
2013-10-24 16:25 ` [Qemu-devel] [PATCH 14/19] Add VSX xscmp*dp Instructions Tom Musta
2013-10-24 20:39 ` Richard Henderson
2013-10-24 16:26 ` [Qemu-devel] [PATCH 15/19] Add VSX xmax/xmin Instructions Tom Musta
2013-10-24 20:45 ` Richard Henderson
2013-10-24 21:07 ` Tom Musta
2013-10-24 21:18 ` Richard Henderson
2013-10-24 22:10 ` Peter Maydell
2013-10-25 13:52 ` Tom Musta
2013-10-25 13:55 ` Peter Maydell
2013-10-24 16:26 ` [Qemu-devel] [PATCH 16/19] Add VSX Vector Compare Instructions Tom Musta
2013-10-24 16:27 ` Tom Musta [this message]
2013-10-24 20:49 ` [Qemu-devel] [PATCH 17/19] Add VSX Floating Point to Floating Point Conversion Instructions Richard Henderson
2013-10-24 16:27 ` [Qemu-devel] [PATCH 18/19] Add VSX ISA2.06 Integer " Tom Musta
2013-10-24 20:51 ` Richard Henderson
2013-10-24 16:28 ` [Qemu-devel] [PATCH 19/19] Add VSX Rounding Instructions Tom Musta
2013-10-24 20:54 ` Richard Henderson
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