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authorblueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162>2008-04-22 16:43:39 +0000
committerblueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162>2008-04-22 16:43:39 +0000
commit4595fca99c92cbd0b3d11b017972d0ff6c1a5f97 (patch)
tree1ba1f2647bb009c4edc13aabaea387efb0de2d10
parent25bc827cf233dcac309decd095e3f2b6095596f0 (diff)
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Move 128-bit float emulation under linux-user including the forgotten file
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4235 c046a42c-6fe2-441c-8c8c-71466251a162
-rw-r--r--linux-user/sparc_quad_float.c124
1 files changed, 124 insertions, 0 deletions
diff --git a/linux-user/sparc_quad_float.c b/linux-user/sparc_quad_float.c
new file mode 100644
index 0000000..f0d7f29
--- /dev/null
+++ b/linux-user/sparc_quad_float.c
@@ -0,0 +1,124 @@
+#include "exec.h"
+#include "host-utils.h"
+#include "helper.h"
+
+#define F_HELPER(name, p) void helper_f##name##p(void)
+
+#define F_BINOP(name) \
+ F_HELPER(name, q) \
+ { \
+ QT0 = float128_ ## name (QT0, QT1, &env->fp_status); \
+ }
+
+F_BINOP(add);
+F_BINOP(sub);
+F_BINOP(mul);
+F_BINOP(div);
+#undef F_BINOP
+
+void helper_fdmulq(void)
+{
+ QT0 = float128_mul(float64_to_float128(DT0, &env->fp_status),
+ float64_to_float128(DT1, &env->fp_status),
+ &env->fp_status);
+}
+
+F_HELPER(ito, q)
+{
+ QT0 = int32_to_float128(*((int32_t *)&FT1), &env->fp_status);
+}
+
+void helper_fqtos(void)
+{
+ FT0 = float128_to_float32(QT1, &env->fp_status);
+}
+
+void helper_fstoq(void)
+{
+ QT0 = float32_to_float128(FT1, &env->fp_status);
+}
+
+void helper_fqtod(void)
+{
+ DT0 = float128_to_float64(QT1, &env->fp_status);
+}
+
+void helper_fdtoq(void)
+{
+ QT0 = float64_to_float128(DT1, &env->fp_status);
+}
+
+void helper_fqtoi(void)
+{
+ *((int32_t *)&FT0) = float128_to_int32_round_to_zero(QT1, &env->fp_status);
+}
+
+void helper_fsqrtq(void)
+{
+ QT0 = float128_sqrt(QT1, &env->fp_status);
+}
+
+#ifdef TARGET_SPARC64
+F_HELPER(neg, q)
+{
+ QT0 = float128_chs(QT1);
+}
+
+F_HELPER(xto, q)
+{
+ QT0 = int64_to_float128(*((int64_t *)&DT1), &env->fp_status);
+}
+
+void helper_fqtox(void)
+{
+ *((int64_t *)&DT0) = float128_to_int64_round_to_zero(QT1, &env->fp_status);
+}
+
+void helper_fabsq(void)
+{
+ QT0 = float128_abs(QT1);
+}
+#endif
+
+#define GEN_FCMP(name, size, reg1, reg2, FS, TRAP) \
+ void glue(helper_, name) (void) \
+ { \
+ target_ulong new_fsr; \
+ \
+ env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS); \
+ switch (glue(size, _compare) (reg1, reg2, &env->fp_status)) { \
+ case float_relation_unordered: \
+ new_fsr = (FSR_FCC1 | FSR_FCC0) << FS; \
+ if ((env->fsr & FSR_NVM) || TRAP) { \
+ env->fsr |= new_fsr; \
+ env->fsr |= FSR_NVC; \
+ env->fsr |= FSR_FTT_IEEE_EXCP; \
+ raise_exception(TT_FP_EXCP); \
+ } else { \
+ env->fsr |= FSR_NVA; \
+ } \
+ break; \
+ case float_relation_less: \
+ new_fsr = FSR_FCC0 << FS; \
+ break; \
+ case float_relation_greater: \
+ new_fsr = FSR_FCC1 << FS; \
+ break; \
+ default: \
+ new_fsr = 0; \
+ break; \
+ } \
+ env->fsr |= new_fsr; \
+ }
+
+GEN_FCMP(fcmpq, float128, QT0, QT1, 0, 0);
+GEN_FCMP(fcmpeq, float128, QT0, QT1, 0, 1);
+
+#ifdef TARGET_SPARC64
+GEN_FCMP(fcmpq_fcc1, float128, QT0, QT1, 22, 0);
+GEN_FCMP(fcmpq_fcc2, float128, QT0, QT1, 24, 0);
+GEN_FCMP(fcmpq_fcc3, float128, QT0, QT1, 26, 0);
+GEN_FCMP(fcmpeq_fcc1, float128, QT0, QT1, 22, 1);
+GEN_FCMP(fcmpeq_fcc2, float128, QT0, QT1, 24, 1);
+GEN_FCMP(fcmpeq_fcc3, float128, QT0, QT1, 26, 1);
+#endif