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X-Received-From: 2607:f8b0:4864:20::b42 Subject: [Qemu-devel] [RFC PATCH v4 26/75] target/i386: introduce M* (memptr) 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The memory-pointer operand decodes the indirect form of ModR/M byte, loads the effective address into a register and passes that register as the operand. Signed-off-by: Jan Bobek --- target/i386/translate.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/target/i386/translate.c b/target/i386/translate.c index 9f02ea58d1..46c41cc3be 100644 --- a/target/i386/translate.c +++ b/target/i386/translate.c @@ -4908,6 +4908,42 @@ INSNOP_FINALIZE(Ib) { } +/* + * Memory-pointer operand + */ +typedef TCGv insnop_arg_t(M); +typedef struct {} insnop_ctxt_t(M); + +INSNOP_INIT(M) +{ + bool ret; + insnop_ctxt_t(modrm_mod) modctxt; + + ret = insnop_init(modrm_mod)(&modctxt, env, s, modrm, is_write); + if (ret) { + const int mod = + insnop_prepare(modrm_mod)(&modctxt, env, s, modrm, is_write); + ret = (mod != 3); + insnop_finalize(modrm_mod)(&modctxt, env, s, modrm, is_write, mod); + } + return ret; +} +INSNOP_PREPARE(M) +{ + gen_lea_modrm(env, s, modrm); + return s->A0; +} +INSNOP_FINALIZE(M) +{ +} + +DEF_INSNOP_ALIAS(Mb, M) +DEF_INSNOP_ALIAS(Mw, M) +DEF_INSNOP_ALIAS(Md, M) +DEF_INSNOP_ALIAS(Mq, M) +DEF_INSNOP_ALIAS(Mdq, M) +DEF_INSNOP_ALIAS(Mqq, M) + static void gen_sse_ng(CPUX86State *env, DisasContext *s, int b) { enum { -- 2.20.1