@@ -1717,3 +1717,44 @@ uint32_t helper_efdcmpeq(CPUPPCState *env, uint64_t op1, uint64_t op2)
/* XXX: TODO: test special values (NaN, infinites, ...) */
return helper_efdtsteq(env, op1, op2);
}
+
+#define DECODE_SPLIT(opcode, shift1, nb1, shift2, nb2) \
+ (((((opcode) >> (shift1)) & ((1 << (nb1)) - 1)) << nb2) | \
+ (((opcode) >> (shift2)) & ((1 << (nb2)) - 1)))
+
+#define xT(opcode) DECODE_SPLIT(opcode, 0, 1, 21, 5)
+#define xA(opcode) DECODE_SPLIT(opcode, 2, 1, 16, 5)
+#define xB(opcode) DECODE_SPLIT(opcode, 1, 1, 11, 5)
+#define xC(opcode) DECODE_SPLIT(opcode, 3, 1, 6, 5)
+#define BF(opcode) (((opcode) >> (31-8)) & 7)
+
+typedef union _ppc_vsr_t {
+ uint64_t u64[2];
+ uint32_t u32[4];
+ float32 f32[4];
+ float64 f64[2];
+} ppc_vsr_t;
+
+static void getVSR(int n, ppc_vsr_t *vsr, CPUPPCState *env)
+{
+ if (n < 32) {
+ vsr->f64[0] = env->fpr[n];
+ vsr->u64[1] = env->vsr[n];
+ } else {
+ vsr->u64[0] = env->avr[n-32].u64[0];
+ vsr->u64[1] = env->avr[n-32].u64[1];
+ }
+}
+
+static void putVSR(int n, ppc_vsr_t *vsr, CPUPPCState *env)
+{
+ if (n < 32) {
+ env->fpr[n] = vsr->f64[0];
+ env->vsr[n] = vsr->u64[1];
+ } else {
+ env->avr[n-32].u64[0] = vsr->u64[0];
+ env->avr[n-32].u64[1] = vsr->u64[1];
+ }
+}
+
+#define float64_to_float64(x, env) x
@@ -7280,6 +7280,20 @@ 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 GEN_VSX_HELPER_2(name, op1, op2, inval, type) \
+static void gen_##name(DisasContext * ctx) \
+{ \
+ TCGv_i32 opc; \
+ if (unlikely(!ctx->vsx_enabled)) { \
+ gen_exception(ctx, POWERPC_EXCP_VSXU); \
+ return; \
+ } \
+ /* NIP cannot be restored if the memory exception comes from an helper */ \
+ gen_update_nip(ctx, ctx->nip - 4); \
+ opc = tcg_const_i32(ctx->opcode); \
+ gen_helper_##name(cpu_env, opc); \
+ tcg_temp_free_i32(opc); \
+}
#define VSX_LOGICAL(name, tcg_op) \
static void glue(gen_, name)(DisasContext * ctx) \
This patch adds general support that will be used by the VSX helper routines: - a union describing the various VSR subfields. - access routines to get and set VSRs - VSX decoders - a general routine to generate a handler that invokes a VSX helper. Signed-off-by: Tom Musta <tommusta@gmail.com> --- target-ppc/fpu_helper.c | 41 +++++++++++++++++++++++++++++++++++++++++ target-ppc/translate.c | 14 ++++++++++++++ 2 files changed, 55 insertions(+), 0 deletions(-)