diff --git a/tests/checkasm/checkasm.c b/tests/checkasm/checkasm.c
index f30c53cec2..544e3ee9ba 100644
--- a/tests/checkasm/checkasm.c
+++ b/tests/checkasm/checkasm.c
@@ -363,6 +363,8 @@ static const struct {
 #elif ARCH_LOONGARCH
     { "LSX",      "lsx",      AV_CPU_FLAG_LSX },
     { "LASX",     "lasx",     AV_CPU_FLAG_LASX },
+#elif ARCH_WASM
+    { "SIMD128",    "simd128",  AV_CPU_FLAG_SIMD128 },
 #endif
     { NULL }
 };
@@ -770,6 +772,8 @@ static LONG NTAPI signal_handler(EXCEPTION_POINTERS *e) {
 }
 #endif
 #else
+
+#ifndef _WASI_EMULATED_SIGNAL
 static void signal_handler(int s);
 
 static const struct sigaction signal_handler_act = {
@@ -784,6 +788,8 @@ static void signal_handler(int s) {
         checkasm_load_context(s);
     }
 }
+#endif // _WASI_EMULATED_SIGNAL
+
 #endif
 
 /* Compares a string with a wildcard pattern. */
@@ -933,10 +939,12 @@ int main(int argc, char *argv[])
     AddVectoredExceptionHandler(0, signal_handler);
 #endif
 #else
+#ifndef _WASI_EMULATED_SIGNAL
     sigaction(SIGBUS,  &signal_handler_act, NULL);
     sigaction(SIGFPE,  &signal_handler_act, NULL);
     sigaction(SIGILL,  &signal_handler_act, NULL);
     sigaction(SIGSEGV, &signal_handler_act, NULL);
+#endif // _WASI_EMULATED_SIGNAL
 #endif
 #if HAVE_PRCTL && defined(PR_SET_UNALIGN)
     prctl(PR_SET_UNALIGN, PR_UNALIGN_SIGBUS);
diff --git a/tests/checkasm/checkasm.h b/tests/checkasm/checkasm.h
index 0ba5c3040d..a1bd19c54a 100644
--- a/tests/checkasm/checkasm.h
+++ b/tests/checkasm/checkasm.h
@@ -66,12 +66,23 @@ typedef struct { CONTEXT c; int status; } checkasm_context;
 #define checkasm_save_context() 0
 #define checkasm_load_context() do {} while (0)
 #endif
-#else
+#else  // _WIN32
+
+#ifdef _WASI_EMULATED_SIGNAL
+
+#define checkasm_context void*
+#define checkasm_save_context() 0
+#define checkasm_load_context() do {} while (0)
+
+#else  // _WASI_EMULATED_SIGNAL
+
 #include <setjmp.h>
 typedef sigjmp_buf checkasm_context;
 #define checkasm_save_context() checkasm_handle_signal(sigsetjmp(checkasm_context_buf, 1))
 #define checkasm_load_context(s) siglongjmp(checkasm_context_buf, s)
-#endif
+#endif  // _WASI_EMULATED_SIGNAL
+
+#endif  // _WIN32
 
 void checkasm_check_aacencdsp(void);
 void checkasm_check_aacpsdsp(void);