Multiplies D[a] and D[b] and adds/subtracts the result to/from D[d].
The result is put in D[c]. All operands are floating-point numbers.
Signed-off-by: Bastian Koppelmann <address@hidden>
---
target-tricore/fpu_helper.c | 93
++++++++++++++++++++++++++++++++++++++++++++-
target-tricore/helper.h | 2 +
target-tricore/translate.c | 8 ++++
3 files changed, 102 insertions(+), 1 deletion(-)
diff --git a/target-tricore/fpu_helper.c b/target-tricore/fpu_helper.c
index f717b53..d530a0b 100644
--- a/target-tricore/fpu_helper.c
+++ b/target-tricore/fpu_helper.c
@@ -21,7 +21,8 @@
#include "cpu.h"
#include "exec/helper-proto.h"
-#define ADD_NAN 0x7cf00001
+#define QUIET_NAN 0x7fc00000
+#define ADD_NAN 0x7fc00001
#define DIV_NAN 0x7fc00008
#define MUL_NAN 0x7fc00002
#define FPU_FS PSW_USB_C
@@ -47,6 +48,42 @@ static inline bool f_is_denormal(float32 arg)
return float32_is_zero_or_denormal(arg) && !float32_is_zero(arg);
}
+static inline float32 f_maddsub_nan_result(float32 arg1, float32 arg2,
+ float32 arg3, float32 result,
+ uint32_t flags)
+{
+ uint32_t aSign, bSign, cSign;
+ uint32_t aExp, bExp, cExp;
+
+ if (float32_is_any_nan(arg1) || float32_is_any_nan(arg2) ||
+ float32_is_any_nan(arg3)) {
+ return QUIET_NAN;
+ } else if (float32_is_infinity(arg1) && float32_is_zero(arg2)) {
+ return MUL_NAN;
+ } else if (float32_is_zero(arg1) && float32_is_infinity(arg2)) {
+ return MUL_NAN;
+ } else {
+ aSign = arg1 >> 31;
+ bSign = arg2 >> 31;
+ cSign = arg3 >> 31;
+
+ aExp = (arg1 >> 23) & 0xff;
+ bExp = (arg2 >> 23) & 0xff;
+ cExp = (arg3 >> 23) & 0xff;
+
+ if (flags & float_muladd_negate_c) {