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[RFC,v2,22/39] target/i386: introduce code generators

Message ID 20190810041255.6820-23-jan.bobek@gmail.com (mailing list archive)
State New, archived
Headers show
Series rewrite MMX/SSE instruction translation | expand

Commit Message

Jan Bobek Aug. 10, 2019, 4:12 a.m. UTC 
In this context, "code generators" are functions that receive decoded
instruction operands and emit TCG ops implementing the correct
instruction functionality. Introduce the naming macros first, actual
generator macros will be added later.

Signed-off-by: Jan Bobek <jan.bobek@gmail.com>
---
 target/i386/translate.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
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Patch

diff --git a/target/i386/translate.c b/target/i386/translate.c
index ebb68fef0b..30180d1c25 100644
--- a/target/i386/translate.c
+++ b/target/i386/translate.c
@@ -4697,6 +4697,24 @@  static int ck_cpuid(CPUX86State *env, DisasContext *s, int ck_cpuid_feat)
             insnop_finalize(opTrm)(env, s, modrm, &rm);                 \
         } while (0))
 
+/*
+ * Code generators
+ */
+#define gen_insn(mnem)                          \
+    gen_ ## mnem
+#define gen_insn_r(mnem, opR1)                  \
+    gen_ ## mnem ## _ ## opR1
+#define gen_insn_rr(mnem, opR1, opR2)           \
+    gen_ ## mnem ## _ ## opR1 ## opR2
+#define gen_insn_w(mnem, opW1)                  \
+    gen_ ## mnem ## _ ## opW1
+#define gen_insn_wr(mnem, opW1, opR1)           \
+    gen_ ## mnem ## _ ## opW1 ## opR1
+#define gen_insn_wrr(mnem, opW1, opR1, opR2)    \
+    gen_ ## mnem ## _ ## opW1 ## opR1 ## opR2
+#define gen_insn_wrrr(mnem, opW1, opR1, opR2, opR3)     \
+    gen_ ## mnem ## _ ## opW1 ## opR1 ## opR2 ## opR3
+
 static void gen_sse_ng(CPUX86State *env, DisasContext *s, int b)
 {
     enum {