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[PATCH 09/33] target/mips: Introduce generic TRANS_CHECK() for decodetre


From: Philippe Mathieu-Daudé
Subject: [PATCH 09/33] target/mips: Introduce generic TRANS_CHECK() for decodetree helpers
Date: Sat, 23 Oct 2021 23:47:39 +0200

Similar to the TRANS() macro introduced in commit fb3164e412d,
introduce TRANS_CHECK() which takes a boolean expression as
argument.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 target/mips/tcg/translate.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/target/mips/tcg/translate.h b/target/mips/tcg/translate.h
index 6111493651f..3ef09cc50c9 100644
--- a/target/mips/tcg/translate.h
+++ b/target/mips/tcg/translate.h
@@ -224,6 +224,15 @@ bool decode_ext_vr54xx(DisasContext *ctx, uint32_t insn);
     static bool trans_##NAME(DisasContext *ctx, arg_##NAME *a) \
     { return FUNC(ctx, a, __VA_ARGS__); }
 
+#define TRANS_CHECK(NAME, CHECK_EXPR, FUNC, ...) \
+    static bool trans_##NAME(DisasContext *ctx, arg_##NAME *a) \
+    { \
+        if (!(CHECK_EXPR)) { \
+            return false; \
+        } \
+        return FUNC(ctx, a, __VA_ARGS__); \
+    }
+
 static inline bool cpu_is_bigendian(DisasContext *ctx)
 {
     return extract32(ctx->CP0_Config0, CP0C0_BE, 1);
-- 
2.31.1




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