diff options
| author | Tom Musta <tommusta@gmail.com> | 2014-01-15 08:10:36 -0600 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-03-05 03:06:35 +0100 |
| commit | 2c0c52ae620cf121a8b9084c7c1168d867564ee8 (patch) | |
| tree | 093b688d691b7874e305991d55a455fef63a39be /target-ppc/fpu_helper.c | |
| parent | b24d0b472b0d471e93ccc7fc7d4fd6ed30e7e434 (diff) | |
target-ppc: VSX Stage 4: Add xsresp
This patch adds the VSX Scalar Reciprocal Estimate Single Precision
(xsresp) instruction.
The existing VSX_RE macro is modified to support rounding of the
intermediate double precision result to single precision.
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 | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/target-ppc/fpu_helper.c b/target-ppc/fpu_helper.c index 49cf09a53f..ac52c23ee3 100644 --- a/target-ppc/fpu_helper.c +++ b/target-ppc/fpu_helper.c @@ -1928,7 +1928,7 @@ VSX_DIV(xvdivsp, 4, float32, f32, 0, 0) * fld - vsr_t field (f32 or f64) * sfprf - set FPRF */ -#define VSX_RE(op, nels, tp, fld, sfprf) \ +#define VSX_RE(op, nels, tp, fld, sfprf, r2sp) \ void helper_##op(CPUPPCState *env, uint32_t opcode) \ { \ ppc_vsr_t xt, xb; \ @@ -1943,6 +1943,11 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \ fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, sfprf); \ } \ xt.fld[i] = tp##_div(tp##_one, xb.fld[i], &env->fp_status); \ + \ + if (r2sp) { \ + xt.fld[i] = helper_frsp(env, xt.fld[i]); \ + } \ + \ if (sfprf) { \ helper_compute_fprf(env, xt.fld[0], sfprf); \ } \ @@ -1952,9 +1957,10 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \ helper_float_check_status(env); \ } -VSX_RE(xsredp, 1, float64, f64, 1) -VSX_RE(xvredp, 2, float64, f64, 0) -VSX_RE(xvresp, 4, float32, f32, 0) +VSX_RE(xsredp, 1, float64, f64, 1, 0) +VSX_RE(xsresp, 1, float64, f64, 1, 1) +VSX_RE(xvredp, 2, float64, f64, 0, 0) +VSX_RE(xvresp, 4, float32, f32, 0, 0) /* VSX_SQRT - VSX floating point square root * op - instruction mnemonic |