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Diffstat (limited to 'qemu/tests/tcg/mips/mips64-dsp/dmsub.c')
-rw-r--r--qemu/tests/tcg/mips/mips64-dsp/dmsub.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/qemu/tests/tcg/mips/mips64-dsp/dmsub.c b/qemu/tests/tcg/mips/mips64-dsp/dmsub.c
new file mode 100644
index 000000000..16be6170e
--- /dev/null
+++ b/qemu/tests/tcg/mips/mips64-dsp/dmsub.c
@@ -0,0 +1,59 @@
+#include "io.h"
+
+int main(void)
+{
+ long long rt, rs;
+ long long achi, acli;
+ long long acho, aclo;
+ long long resh, resl;
+ achi = 0x1;
+ acli = 0x8;
+
+ rs = 0x0000000100000001;
+ rt = 0x0000000200000002;
+
+ resh = 0x1;
+ resl = 0x4;
+
+ __asm
+ ("mthi %2, $ac1 \t\n"
+ "mtlo %3, $ac1 \t\n"
+ "dmsub $ac1, %4, %5\t\n"
+ "mfhi %0, $ac1 \t\n"
+ "mflo %1, $ac1 \t\n"
+ : "=r"(acho), "=r"(aclo)
+ : "r"(achi), "r"(acli), "r"(rs), "r"(rt)
+ );
+ if ((acho != resh) || (aclo != resl)) {
+ printf("1 dmsub error\n");
+
+ return -1;
+ }
+
+ achi = 0xfffffffF;
+ acli = 0xfffffffF;
+
+ rs = 0x8888999977776666;
+ rt = 0x9999888877776666;
+
+ resh = 0xffffffffffffffff;
+ resl = 0x789aae13;
+
+ __asm
+ ("mthi %2, $ac1 \t\n"
+ "mtlo %3, $ac1 \t\n"
+ "dmsub $ac1, %4, %5\t\n"
+ "mfhi %0, $ac1 \t\n"
+ "mflo %1, $ac1 \t\n"
+ : "=r"(acho), "=r"(aclo)
+ : "r"(achi), "r"(acli), "r"(rs), "r"(rt)
+ );
+
+ if ((acho != resh) || (aclo != resl)) {
+ printf("2 dmsub error\n");
+
+ return -1;
+ }
+
+ return 0;
+}