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X-Received-From: 2607:f8b0:4864:20::b42 Subject: [Qemu-devel] [RFC PATCH v4 11/75] target/i386: introduce gen_sse_ng 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" This function serves as the point-of-intercept for all newly implemented instructions. If no new implementation exists, fall back to gen_sse. Signed-off-by: Jan Bobek --- target/i386/translate.c | 46 ++++++++++++++++++++++++++++++++++++++++- 1 file changed, 45 insertions(+), 1 deletion(-) diff --git a/target/i386/translate.c b/target/i386/translate.c index 44ad55f9ee..8045ce3ce0 100644 --- a/target/i386/translate.c +++ b/target/i386/translate.c @@ -4477,6 +4477,50 @@ static void gen_sse(CPUX86State *env, DisasContext *s, int b) } } +static void gen_sse_ng(CPUX86State *env, DisasContext *s, int b) +{ + enum { + P_NP = 0, + P_66 = 1 << 8, + P_F3 = 1 << 9, + P_F2 = 1 << 10, + + M_NA = 0, + M_0F = 1 << 11, + M_0F38 = 1 << 12, + M_0F3A = 1 << 13, + + W_0 = 0, + W_1 = 1 << 14, + + VEX_128 = 1 << 15, + VEX_256 = 1 << 16, + }; + + const int p = + (s->prefix & PREFIX_DATA ? P_66 : 0) + | (s->prefix & PREFIX_REPZ ? P_F3 : 0) + | (s->prefix & PREFIX_REPNZ ? P_F2 : 0) + | (!(s->prefix & PREFIX_VEX) ? 0 : + (s->vex_l ? VEX_256 : VEX_128)); + int m = + M_0F; + const int w = + REX_W(s) > 0 ? W_1 : W_0; + int op = + b & 0xff; + + while (1) { + switch (p | m | w | op) { + + default: { + gen_sse(env, s, b); + } return; + + } + } +} + static int disas_insn_prefix(DisasContext *s, CPUX86State *env) { int b, prefixes; @@ -8372,7 +8416,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) case 0x1c2: case 0x1c4 ... 0x1c6: case 0x1d0 ... 0x1fe: - gen_sse(env, s, b); + gen_sse_ng(env, s, b); break; default: goto unknown_op; -- 2.20.1