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.bo...@gmail.com>
---
target/i386/translate.c | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/target/i386/translate.c b/target/i386/translate.c
index 9896f1c99e..19b92d61f6 100644
--- a/target/i386/translate.c
+++ b/target/i386/translate.c
@@ -4801,6 +4801,43 @@ INSNOP_LDST(RqMq, Rq, Mq, NULL,
INSNOP_LDST_UNIFY(Ed, Rd, RdMd)
INSNOP_LDST_UNIFY(Eq, Rq, RqMq)
+/*
+ * MMX registers
+ */
+#define INSNOP_INIT_MM(mmid_fp) \
+ do { \
+ const int mmid = mmid_fp(env, s, modrm); \
+ INSNOP_INIT_OK(offsetof(CPUX86State, fpregs[mmid].mmx)); \
+ } while (0)
+
+#define INSNOP_MM(opT, init_stmt) \
+ INSNOP(opT, uint32_t, \
+ init_stmt, \
+ INSNOP_PREPARE_NOOP, \
+ INSNOP_FINALIZE_NOOP)
+
+INSNOP_MM(P, INSNOP_INIT_MM(decode_modrm_reg_norexr))
+INSNOP_ALIAS(Pd, P)
+INSNOP_ALIAS(Pq, P)
+
+INSNOP_MM(N, INSNOP_INIT_DIRECT_ONLY(INSNOP_INIT_MM(decode_modrm_rm_norexb)))
+INSNOP_ALIAS(Nd, N)
+INSNOP_ALIAS(Nq, N)
+
+INSNOP_LDST(NdMd, Nd, Md, offsetof(CPUX86State, mmx_t0),
+ (assert(ptr == s->A0),
+ gen_ldd_env_A0(s, reg + offsetof(MMXReg, MMX_L(0)))),
+ (assert(ptr == s->A0),
+ gen_std_env_A0(s, reg + offsetof(MMXReg, MMX_L(0)))))
+INSNOP_LDST(NqMq, Nq, Mq, offsetof(CPUX86State, mmx_t0),
+ (assert(ptr == s->A0),
+ gen_ldq_env_A0(s, reg + offsetof(MMXReg, MMX_Q(0)))),
+ (assert(ptr == s->A0),
+ gen_stq_env_A0(s, reg + offsetof(MMXReg, MMX_Q(0)))))
+
+INSNOP_LDST_UNIFY(Qd, Nd, NdMd)
+INSNOP_LDST_UNIFY(Qq, Nq, NqMq)
+
/*
* Code generators
*/
--
2.20.1
