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| author | Tom Musta <tommusta@gmail.com> | 2014-01-02 16:21:22 -0600 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-03-05 03:06:28 +0100 |
| commit | 5e591d8812df5efa38518b6bf933d02c61fa1c10 (patch) | |
| tree | 93626632c8592d4bda1a7cf4c8342fbaa72f9774 /target-ppc | |
| parent | ee6e02c0aca020a1934a14c36cff258545dc29b5 (diff) | |
| download | qemu-5e591d8812df5efa38518b6bf933d02c61fa1c10.tar.gz qemu-5e591d8812df5efa38518b6bf933d02c61fa1c10.tar.bz2 qemu-5e591d8812df5efa38518b6bf933d02c61fa1c10.zip | |
target-ppc: Add VSX ISA2.06 xmul Instructions
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 <tommusta@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc')
| -rw-r--r-- | target-ppc/fpu_helper.c | 47 | ||||
| -rw-r--r-- | target-ppc/helper.h | 3 | ||||
| -rw-r--r-- | target-ppc/translate.c | 6 |
3 files changed, 56 insertions, 0 deletions
diff --git a/target-ppc/fpu_helper.c b/target-ppc/fpu_helper.c index 74c1ce1635..51ca589ec9 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 966200d2cc..ecb900f368 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 9b4e8b1319..bf15f91601 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) \ |