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X-Received-From: 2607:f8b0:4864:20::b43 Subject: [Qemu-devel] [RFC PATCH v3 28/46] target/i386: introduce P*, N*, Q* (MMX) operands X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jan Bobek , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" 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 --- target/i386/translate.c | 79 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) diff --git a/target/i386/translate.c b/target/i386/translate.c index 779b692942..bd3c7f9356 100644 --- a/target/i386/translate.c +++ b/target/i386/translate.c @@ -5011,6 +5011,85 @@ INSNOP_LDST(tcg_temp_i64, Mq) } } =20 +/* + * MMX-technology register operands + */ +#define DEF_INSNOP_MM(opT, opTmmid) \ + typedef unsigned int 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 =3D \ + insnop_prepare(opTmmid)(&ctxt->mmid, env, s, modrm, is_write);= \ + const insnop_arg_t(opT) arg =3D \ + offsetof(CPUX86State, fpregs[mmid & 7].mmx); \ + insnop_finalize(opTmmid)(&ctxt->mmid, env, s, modrm, is_write, mmi= d); \ + return arg; \ + } \ + INSNOP_FINALIZE(opT) \ + { \ + } + +typedef unsigned int insnop_arg_t(mm_t0); +typedef struct {} insnop_ctxt_t(mm_t0); + +INSNOP_INIT(mm_t0) +{ + return 0; +} +INSNOP_PREPARE(mm_t0) +{ + return offsetof(CPUX86State, mmx_t0); +} +INSNOP_FINALIZE(mm_t0) +{ +} + +DEF_INSNOP_MM(P, modrm_reg) +DEF_INSNOP_ALIAS(Pd, P) +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_t0, Md) +DEF_INSNOP_LDST(MQq, mm_t0, Mq) +DEF_INSNOP_EITHER(Qd, Nd, MQd) +DEF_INSNOP_EITHER(Qq, Nq, MQq) + +INSNOP_LDST(mm_t0, Md) +{ + const insnop_arg_t(mm_t0) ofs =3D + offsetof(MMXReg, MMX_L(0)); + + assert(ptr =3D=3D s->A0); + if (is_write) { + gen_std_env_A0(s, arg + ofs); + } else { + gen_ldd_env_A0(s, arg + ofs); + } +} +INSNOP_LDST(mm_t0, Mq) +{ + const insnop_arg_t(mm_t0) ofs =3D + offsetof(MMXReg, MMX_Q(0)); + + assert(ptr =3D=3D s->A0); + if (is_write) { + gen_stq_env_A0(s, arg + ofs); + } else { + gen_ldq_env_A0(s, arg + ofs); + } +} + static void gen_sse_ng(CPUX86State *env, DisasContext *s, int b) { enum { --=20 2.20.1