@@ -5032,6 +5032,86 @@ INSNOP_LDST(tcg_i64, Mq)
}
}
+/*
+ * MMX-technology register operands
+ */
+typedef unsigned int insnop_arg_t(mm);
+typedef struct {} insnop_ctxt_t(mm);
+
+INSNOP_INIT(mm)
+{
+ return true;
+}
+INSNOP_PREPARE(mm)
+{
+ return offsetof(CPUX86State, mmx_t0);
+}
+INSNOP_FINALIZE(mm)
+{
+}
+
+#define DEF_INSNOP_MM(opT, opTmmid) \
+ typedef insnop_arg_t(mm) insnop_arg_t(opT); \
+ typedef struct { \
+ insnop_ctxt_t(opTmmid) mmid; \
+ } insnop_ctxt_t(opT); \
+ \
+ INSNOP_INIT(opT) \
+ { \
+ return insnop_init(opTmmid)(&ctxt->mmid, env, s, modrm, is_write); \
+ } \
+ INSNOP_PREPARE(opT) \
+ { \
+ const insnop_arg_t(opTmmid) mmid = \
+ insnop_prepare(opTmmid)(&ctxt->mmid, env, s, modrm, is_write); \
+ const insnop_arg_t(opT) arg = \
+ offsetof(CPUX86State, fpregs[mmid & 7].mmx); \
+ insnop_finalize(opTmmid)(&ctxt->mmid, env, s, modrm, is_write, mmid); \
+ return arg; \
+ } \
+ INSNOP_FINALIZE(opT) \
+ { \
+ }
+
+DEF_INSNOP_MM(P, modrm_reg)
+DEF_INSNOP_ALIAS(Pq, P)
+
+DEF_INSNOP_MM(N, modrm_rm_direct)
+DEF_INSNOP_ALIAS(Nd, N)
+DEF_INSNOP_ALIAS(Nq, N)
+
+DEF_INSNOP_LDST(MQd, mm, Md)
+DEF_INSNOP_LDST(MQq, mm, Mq)
+DEF_INSNOP_EITHER(Qd, Nd, MQd)
+DEF_INSNOP_EITHER(Qq, Nq, MQq)
+
+INSNOP_LDST(mm, Md)
+{
+ const insnop_arg_t(mm) ofs = offsetof(MMXReg, MMX_L(0));
+ const TCGv_i32 r32 = tcg_temp_new_i32();
+ if (is_write) {
+ tcg_gen_ld_i32(r32, cpu_env, arg + ofs);
+ tcg_gen_qemu_st_i32(r32, ptr, s->mem_index, MO_LEUL);
+ } else {
+ tcg_gen_qemu_ld_i32(r32, ptr, s->mem_index, MO_LEUL);
+ tcg_gen_st_i32(r32, cpu_env, arg + ofs);
+ }
+ tcg_temp_free_i32(r32);
+}
+INSNOP_LDST(mm, Mq)
+{
+ const insnop_arg_t(mm) ofs = offsetof(MMXReg, MMX_Q(0));
+ const TCGv_i64 r64 = tcg_temp_new_i64();
+ if (is_write) {
+ tcg_gen_ld_i64(r64, cpu_env, arg + ofs);
+ tcg_gen_qemu_st_i64(r64, ptr, s->mem_index, MO_LEQ);
+ } else {
+ tcg_gen_qemu_ld_i64(r64, ptr, s->mem_index, MO_LEQ);
+ tcg_gen_st_i64(r64, cpu_env, arg + ofs);
+ }
+ tcg_temp_free_i64(r64);
+}
+
static void gen_sse_ng(CPUX86State *env, DisasContext *s, int b)
{
enum {
These address the MMX-technology register file; the corresponding cpu_env offset is passed as the operand value. Notably, offset of the entire register is pased at all times, regardless of the operand-size suffix. Signed-off-by: Jan Bobek <jan.bobek@gmail.com> --- target/i386/translate.c | 80 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+)