diff options
| author | Tom Musta <tommusta@gmail.com> | 2014-01-02 16:21:30 -0600 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-03-05 03:06:30 +0100 |
| commit | 4f17e9c738321151e6b7aa4d2c25c3f1e2443cca (patch) | |
| tree | f1dab4f0df3fc44d785973ea835cb30eae1d7239 /target-ppc/fpu_helper.c | |
| parent | 595c6eefb79a77a650dd7a49e812920ed53b0e9c (diff) | |
target-ppc: Add VSX xscmp*dp Instructions
This patch adds the VSX scalar floating point compare ordered
and unordered instructions.
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/fpu_helper.c')
| -rw-r--r-- | target-ppc/fpu_helper.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/target-ppc/fpu_helper.c b/target-ppc/fpu_helper.c index 54c47c84aa..eb5d878b43 100644 --- a/target-ppc/fpu_helper.c +++ b/target-ppc/fpu_helper.c @@ -2249,3 +2249,42 @@ VSX_MADD(xvnmaddasp, 4, float32, f32, NMADD_FLGS, 1, 0) VSX_MADD(xvnmaddmsp, 4, float32, f32, NMADD_FLGS, 0, 0) VSX_MADD(xvnmsubasp, 4, float32, f32, NMSUB_FLGS, 1, 0) VSX_MADD(xvnmsubmsp, 4, float32, f32, NMSUB_FLGS, 0, 0) + +#define VSX_SCALAR_CMP(op, ordered) \ +void helper_##op(CPUPPCState *env, uint32_t opcode) \ +{ \ + ppc_vsr_t xa, xb; \ + uint32_t cc = 0; \ + \ + getVSR(xA(opcode), &xa, env); \ + getVSR(xB(opcode), &xb, env); \ + \ + if (unlikely(float64_is_any_nan(xa.f64[0]) || \ + float64_is_any_nan(xb.f64[0]))) { \ + if (float64_is_signaling_nan(xa.f64[0]) || \ + float64_is_signaling_nan(xb.f64[0])) { \ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 0); \ + } \ + if (ordered) { \ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXVC, 0); \ + } \ + cc = 1; \ + } else { \ + if (float64_lt(xa.f64[0], xb.f64[0], &env->fp_status)) { \ + cc = 8; \ + } else if (!float64_le(xa.f64[0], xb.f64[0], &env->fp_status)) { \ + cc = 4; \ + } else { \ + cc = 2; \ + } \ + } \ + \ + env->fpscr &= ~(0x0F << FPSCR_FPRF); \ + env->fpscr |= cc << FPSCR_FPRF; \ + env->crf[BF(opcode)] = cc; \ + \ + helper_float_check_status(env); \ +} + +VSX_SCALAR_CMP(xscmpodp, 1) +VSX_SCALAR_CMP(xscmpudp, 0) |