diff options
author | Tom Musta <tommusta@gmail.com> | 2014-01-02 16:21:35 -0600 |
---|---|---|
committer | Alexander Graf <agraf@suse.de> | 2014-03-05 03:06:32 +0100 |
commit | 88e33d08c9c2fc0aabc9b832719324bd2d454db9 (patch) | |
tree | 7dbd83f4375f18f375053b0da85acbb16d3d5768 /target-ppc | |
parent | 5177d2ca938496f060448f71f9edd9145231d9af (diff) | |
download | hqemu-88e33d08c9c2fc0aabc9b832719324bd2d454db9.zip hqemu-88e33d08c9c2fc0aabc9b832719324bd2d454db9.tar.gz |
target-ppc: Add VSX Rounding Instructions
This patch adds the VSX Round to Floating Point Integer instructions:
- xsrdpi, xsrdpic, xsrdpim, xsrdpip, xsrdpiz
- xvrdpi, xvrdpic, xvrdpim, xvrdpip, xvrdpiz
- xvrspi, xvrspic, xvrspim, xvrspip, xvrspiz
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 | 68 | ||||
-rw-r--r-- | target-ppc/helper.h | 15 | ||||
-rw-r--r-- | target-ppc/translate.c | 30 |
3 files changed, 113 insertions, 0 deletions
diff --git a/target-ppc/fpu_helper.c b/target-ppc/fpu_helper.c index 3970652..3165ef0 100644 --- a/target-ppc/fpu_helper.c +++ b/target-ppc/fpu_helper.c @@ -2537,3 +2537,71 @@ VSX_CVT_INT_TO_FP(xvcvuxdsp, 2, uint64, float32, u64[i], f32[j], \ 2*i + JOFFSET, 0) VSX_CVT_INT_TO_FP(xvcvsxwsp, 4, int32, float32, u32[j], f32[i], i, 0) VSX_CVT_INT_TO_FP(xvcvuxwsp, 4, uint32, float32, u32[j], f32[i], i, 0) + +/* For "use current rounding mode", define a value that will not be one of + * the existing rounding model enums. + */ +#define FLOAT_ROUND_CURRENT (float_round_nearest_even + float_round_down + \ + float_round_up + float_round_to_zero) + +/* VSX_ROUND - VSX floating point round + * op - instruction mnemonic + * nels - number of elements (1, 2 or 4) + * tp - type (float32 or float64) + * fld - vsr_t field (f32 or f64) + * rmode - rounding mode + * sfprf - set FPRF + */ +#define VSX_ROUND(op, nels, tp, fld, rmode, 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); \ + \ + if (rmode != FLOAT_ROUND_CURRENT) { \ + set_float_rounding_mode(rmode, &env->fp_status); \ + } \ + \ + for (i = 0; i < nels; i++) { \ + if (unlikely(tp##_is_signaling_nan(xb.fld[i]))) { \ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 0); \ + xt.fld[i] = tp##_snan_to_qnan(xb.fld[i]); \ + } else { \ + xt.fld[i] = tp##_round_to_int(xb.fld[i], &env->fp_status); \ + } \ + if (sfprf) { \ + helper_compute_fprf(env, xt.fld[i], sfprf); \ + } \ + } \ + \ + /* If this is not a "use current rounding mode" instruction, \ + * then inhibit setting of the XX bit and restore rounding \ + * mode from FPSCR */ \ + if (rmode != FLOAT_ROUND_CURRENT) { \ + fpscr_set_rounding_mode(env); \ + env->fp_status.float_exception_flags &= ~float_flag_inexact; \ + } \ + \ + putVSR(xT(opcode), &xt, env); \ + helper_float_check_status(env); \ +} + +VSX_ROUND(xsrdpi, 1, float64, f64, float_round_nearest_even, 1) +VSX_ROUND(xsrdpic, 1, float64, f64, FLOAT_ROUND_CURRENT, 1) +VSX_ROUND(xsrdpim, 1, float64, f64, float_round_down, 1) +VSX_ROUND(xsrdpip, 1, float64, f64, float_round_up, 1) +VSX_ROUND(xsrdpiz, 1, float64, f64, float_round_to_zero, 1) + +VSX_ROUND(xvrdpi, 2, float64, f64, float_round_nearest_even, 0) +VSX_ROUND(xvrdpic, 2, float64, f64, FLOAT_ROUND_CURRENT, 0) +VSX_ROUND(xvrdpim, 2, float64, f64, float_round_down, 0) +VSX_ROUND(xvrdpip, 2, float64, f64, float_round_up, 0) +VSX_ROUND(xvrdpiz, 2, float64, f64, float_round_to_zero, 0) + +VSX_ROUND(xvrspi, 4, float32, f32, float_round_nearest_even, 0) +VSX_ROUND(xvrspic, 4, float32, f32, FLOAT_ROUND_CURRENT, 0) +VSX_ROUND(xvrspim, 4, float32, f32, float_round_down, 0) +VSX_ROUND(xvrspip, 4, float32, f32, float_round_up, 0) +VSX_ROUND(xvrspiz, 4, float32, f32, float_round_to_zero, 0) diff --git a/target-ppc/helper.h b/target-ppc/helper.h index de46b6f..0276b02 100644 --- a/target-ppc/helper.h +++ b/target-ppc/helper.h @@ -280,6 +280,11 @@ DEF_HELPER_2(xscvdpuxds, void, env, i32) DEF_HELPER_2(xscvdpuxws, void, env, i32) DEF_HELPER_2(xscvsxddp, void, env, i32) DEF_HELPER_2(xscvuxddp, void, env, i32) +DEF_HELPER_2(xsrdpi, void, env, i32) +DEF_HELPER_2(xsrdpic, void, env, i32) +DEF_HELPER_2(xsrdpim, void, env, i32) +DEF_HELPER_2(xsrdpip, void, env, i32) +DEF_HELPER_2(xsrdpiz, void, env, i32) DEF_HELPER_2(xvadddp, void, env, i32) DEF_HELPER_2(xvsubdp, void, env, i32) @@ -312,6 +317,11 @@ DEF_HELPER_2(xvcvsxddp, void, env, i32) DEF_HELPER_2(xvcvuxddp, void, env, i32) DEF_HELPER_2(xvcvsxwdp, void, env, i32) DEF_HELPER_2(xvcvuxwdp, void, env, i32) +DEF_HELPER_2(xvrdpi, void, env, i32) +DEF_HELPER_2(xvrdpic, void, env, i32) +DEF_HELPER_2(xvrdpim, void, env, i32) +DEF_HELPER_2(xvrdpip, void, env, i32) +DEF_HELPER_2(xvrdpiz, void, env, i32) DEF_HELPER_2(xvaddsp, void, env, i32) DEF_HELPER_2(xvsubsp, void, env, i32) @@ -344,6 +354,11 @@ DEF_HELPER_2(xvcvsxdsp, void, env, i32) DEF_HELPER_2(xvcvuxdsp, void, env, i32) DEF_HELPER_2(xvcvsxwsp, void, env, i32) DEF_HELPER_2(xvcvuxwsp, void, env, i32) +DEF_HELPER_2(xvrspi, void, env, i32) +DEF_HELPER_2(xvrspic, void, env, i32) +DEF_HELPER_2(xvrspim, void, env, i32) +DEF_HELPER_2(xvrspip, void, env, i32) +DEF_HELPER_2(xvrspiz, 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 6926250..2ae5d20 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -7333,6 +7333,11 @@ GEN_VSX_HELPER_2(xscvdpuxds, 0x10, 0x14, 0, PPC2_VSX) GEN_VSX_HELPER_2(xscvdpuxws, 0x10, 0x04, 0, PPC2_VSX) GEN_VSX_HELPER_2(xscvsxddp, 0x10, 0x17, 0, PPC2_VSX) GEN_VSX_HELPER_2(xscvuxddp, 0x10, 0x16, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xsrdpi, 0x12, 0x04, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xsrdpic, 0x16, 0x06, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xsrdpim, 0x12, 0x07, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xsrdpip, 0x12, 0x06, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xsrdpiz, 0x12, 0x05, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvadddp, 0x00, 0x0C, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvsubdp, 0x00, 0x0D, 0, PPC2_VSX) @@ -7365,6 +7370,11 @@ GEN_VSX_HELPER_2(xvcvsxddp, 0x10, 0x1F, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvcvuxddp, 0x10, 0x1E, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvcvsxwdp, 0x10, 0x0F, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvcvuxwdp, 0x10, 0x0E, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xvrdpi, 0x12, 0x0C, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xvrdpic, 0x16, 0x0E, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xvrdpim, 0x12, 0x0F, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xvrdpip, 0x12, 0x0E, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xvrdpiz, 0x12, 0x0D, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvaddsp, 0x00, 0x08, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvsubsp, 0x00, 0x09, 0, PPC2_VSX) @@ -7397,6 +7407,11 @@ GEN_VSX_HELPER_2(xvcvsxdsp, 0x10, 0x1B, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvcvuxdsp, 0x10, 0x1A, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvcvsxwsp, 0x10, 0x0B, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvcvuxwsp, 0x10, 0x0A, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xvrspi, 0x12, 0x08, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xvrspic, 0x16, 0x0A, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xvrspim, 0x12, 0x0B, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xvrspip, 0x12, 0x0A, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xvrspiz, 0x12, 0x09, 0, PPC2_VSX) #define VSX_LOGICAL(name, tcg_op) \ static void glue(gen_, name)(DisasContext * ctx) \ @@ -10119,6 +10134,11 @@ GEN_XX2FORM(xscvdpuxds, 0x10, 0x14, PPC2_VSX), GEN_XX2FORM(xscvdpuxws, 0x10, 0x04, PPC2_VSX), GEN_XX2FORM(xscvsxddp, 0x10, 0x17, PPC2_VSX), GEN_XX2FORM(xscvuxddp, 0x10, 0x16, PPC2_VSX), +GEN_XX2FORM(xsrdpi, 0x12, 0x04, PPC2_VSX), +GEN_XX2FORM(xsrdpic, 0x16, 0x06, PPC2_VSX), +GEN_XX2FORM(xsrdpim, 0x12, 0x07, PPC2_VSX), +GEN_XX2FORM(xsrdpip, 0x12, 0x06, PPC2_VSX), +GEN_XX2FORM(xsrdpiz, 0x12, 0x05, PPC2_VSX), GEN_XX3FORM(xvadddp, 0x00, 0x0C, PPC2_VSX), GEN_XX3FORM(xvsubdp, 0x00, 0x0D, PPC2_VSX), @@ -10151,6 +10171,11 @@ GEN_XX2FORM(xvcvsxddp, 0x10, 0x1F, PPC2_VSX), GEN_XX2FORM(xvcvuxddp, 0x10, 0x1E, PPC2_VSX), GEN_XX2FORM(xvcvsxwdp, 0x10, 0x0F, PPC2_VSX), GEN_XX2FORM(xvcvuxwdp, 0x10, 0x0E, PPC2_VSX), +GEN_XX2FORM(xvrdpi, 0x12, 0x0C, PPC2_VSX), +GEN_XX2FORM(xvrdpic, 0x16, 0x0E, PPC2_VSX), +GEN_XX2FORM(xvrdpim, 0x12, 0x0F, PPC2_VSX), +GEN_XX2FORM(xvrdpip, 0x12, 0x0E, PPC2_VSX), +GEN_XX2FORM(xvrdpiz, 0x12, 0x0D, PPC2_VSX), GEN_XX3FORM(xvaddsp, 0x00, 0x08, PPC2_VSX), GEN_XX3FORM(xvsubsp, 0x00, 0x09, PPC2_VSX), @@ -10183,6 +10208,11 @@ GEN_XX2FORM(xvcvsxdsp, 0x10, 0x1B, PPC2_VSX), GEN_XX2FORM(xvcvuxdsp, 0x10, 0x1A, PPC2_VSX), GEN_XX2FORM(xvcvsxwsp, 0x10, 0x0B, PPC2_VSX), GEN_XX2FORM(xvcvuxwsp, 0x10, 0x0A, PPC2_VSX), +GEN_XX2FORM(xvrspi, 0x12, 0x08, PPC2_VSX), +GEN_XX2FORM(xvrspic, 0x16, 0x0A, PPC2_VSX), +GEN_XX2FORM(xvrspim, 0x12, 0x0B, PPC2_VSX), +GEN_XX2FORM(xvrspip, 0x12, 0x0A, PPC2_VSX), +GEN_XX2FORM(xvrspiz, 0x12, 0x09, PPC2_VSX), #undef VSX_LOGICAL #define VSX_LOGICAL(name, opc2, opc3, fl2) \ |