diff options
| author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2019-06-16 13:37:40 +0100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2019-07-02 09:43:58 +1000 |
| commit | 00084a25adf7d55f345453eabbad7c81b4e83955 (patch) | |
| tree | ed77ae8f5315c9e1da1eef690dac742b7bb02cd5 /target/ppc/translate | |
| parent | 03b32c092ea9b0d3a8d49586edf50a63f8ccffd9 (diff) | |
target/ppc: introduce separate VSX_CMP macro for xvcmp* instructions
Rather than perform the VSR register decoding within the helper itself,
introduce a new VSX_CMP macro which performs the decode based upon xT, xA
and xB at translation time.
Subsequent commits will make the same changes for other instructions however
the xvcmp* instructions are different in that they return a set of flags to be
optionally written back to the crf[6] register. Move this logic from the
helper function to the generator function, along with the float_status update.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20190616123751.781-5-mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target/ppc/translate')
| -rw-r--r-- | target/ppc/translate/vsx-impl.inc.c | 49 |
1 files changed, 41 insertions, 8 deletions
diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx-impl.inc.c index e9b7562f84..900ba07d40 100644 --- a/target/ppc/translate/vsx-impl.inc.c +++ b/target/ppc/translate/vsx-impl.inc.c @@ -20,6 +20,13 @@ static inline void set_cpu_vsrl(int n, TCGv_i64 src) tcg_gen_st_i64(src, cpu_env, vsr64_offset(n, false)); } +static inline TCGv_ptr gen_vsr_ptr(int reg) +{ + TCGv_ptr r = tcg_temp_new_ptr(); + tcg_gen_addi_ptr(r, cpu_env, vsr_full_offset(reg)); + return r; +} + #define VSX_LOAD_SCALAR(name, operation) \ static void gen_##name(DisasContext *ctx) \ { \ @@ -958,6 +965,40 @@ VSX_VECTOR_MOVE(xvnabssp, OP_NABS, SGN_MASK_SP) VSX_VECTOR_MOVE(xvnegsp, OP_NEG, SGN_MASK_SP) VSX_VECTOR_MOVE(xvcpsgnsp, OP_CPSGN, SGN_MASK_SP) +#define VSX_CMP(name, op1, op2, inval, type) \ +static void gen_##name(DisasContext *ctx) \ +{ \ + TCGv_i32 ignored; \ + TCGv_ptr xt, xa, xb; \ + if (unlikely(!ctx->vsx_enabled)) { \ + gen_exception(ctx, POWERPC_EXCP_VSXU); \ + return; \ + } \ + xt = gen_vsr_ptr(xT(ctx->opcode)); \ + xa = gen_vsr_ptr(xA(ctx->opcode)); \ + xb = gen_vsr_ptr(xB(ctx->opcode)); \ + if ((ctx->opcode >> (31 - 21)) & 1) { \ + gen_helper_##name(cpu_crf[6], cpu_env, xt, xa, xb); \ + } else { \ + ignored = tcg_temp_new_i32(); \ + gen_helper_##name(ignored, cpu_env, xt, xa, xb); \ + tcg_temp_free_i32(ignored); \ + } \ + gen_helper_float_check_status(cpu_env); \ + tcg_temp_free_ptr(xt); \ + tcg_temp_free_ptr(xa); \ + tcg_temp_free_ptr(xb); \ +} + +VSX_CMP(xvcmpeqdp, 0x0C, 0x0C, 0, PPC2_VSX) +VSX_CMP(xvcmpgedp, 0x0C, 0x0E, 0, PPC2_VSX) +VSX_CMP(xvcmpgtdp, 0x0C, 0x0D, 0, PPC2_VSX) +VSX_CMP(xvcmpnedp, 0x0C, 0x0F, 0, PPC2_ISA300) +VSX_CMP(xvcmpeqsp, 0x0C, 0x08, 0, PPC2_VSX) +VSX_CMP(xvcmpgesp, 0x0C, 0x0A, 0, PPC2_VSX) +VSX_CMP(xvcmpgtsp, 0x0C, 0x09, 0, PPC2_VSX) +VSX_CMP(xvcmpnesp, 0x0C, 0x0B, 0, PPC2_VSX) + #define GEN_VSX_HELPER_2(name, op1, op2, inval, type) \ static void gen_##name(DisasContext *ctx) \ { \ @@ -1097,10 +1138,6 @@ GEN_VSX_HELPER_2(xvnmsubadp, 0x04, 0x1E, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvnmsubmdp, 0x04, 0x1F, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvmaxdp, 0x00, 0x1C, 0, PPC2_VSX) 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(xvcmpnedp, 0x0C, 0x0F, 0, PPC2_ISA300) GEN_VSX_HELPER_2(xvcvdpsp, 0x12, 0x18, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvcvdpsxds, 0x10, 0x1D, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvcvdpsxws, 0x10, 0x0D, 0, PPC2_VSX) @@ -1135,10 +1172,6 @@ GEN_VSX_HELPER_2(xvnmsubasp, 0x04, 0x1A, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvnmsubmsp, 0x04, 0x1B, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvmaxsp, 0x00, 0x18, 0, PPC2_VSX) 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(xvcmpnesp, 0x0C, 0x0B, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvcvspdp, 0x12, 0x1C, 0, PPC2_VSX) GEN_VSX_HELPER_2(xvcvhpsp, 0x16, 0x1D, 0x18, PPC2_ISA300) GEN_VSX_HELPER_2(xvcvsphp, 0x16, 0x1D, 0x19, PPC2_ISA300) |