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Diffstat (limited to 'qemu/tests/tcg/mips/mips32-dsp/modsub.c')
-rw-r--r--qemu/tests/tcg/mips/mips32-dsp/modsub.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/qemu/tests/tcg/mips/mips32-dsp/modsub.c b/qemu/tests/tcg/mips/mips32-dsp/modsub.c
new file mode 100644
index 000000000..c294eebb5
--- /dev/null
+++ b/qemu/tests/tcg/mips/mips32-dsp/modsub.c
@@ -0,0 +1,30 @@
+#include<stdio.h>
+#include<assert.h>
+
+int main()
+{
+ int rd, rs, rt;
+ int result;
+
+ rs = 0xFFFFFFFF;
+ rt = 0x000000FF;
+ result = 0xFFFFFF00;
+ __asm
+ ("modsub %0, %1, %2\n\t"
+ : "=r"(rd)
+ : "r"(rs), "r"(rt)
+ );
+ assert(result == rd);
+
+ rs = 0x00000000;
+ rt = 0x00CD1FFF;
+ result = 0x0000CD1F;
+ __asm
+ ("modsub %0, %1, %2\n\t"
+ : "=r"(rd)
+ : "r"(rs), "r"(rt)
+ );
+ assert(result == rd);
+
+ return 0;
+}