Support for VR5432, and some of its special instructions. Original patch

by Dirk Behme.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3859 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 84 insertions, 1 deletions

diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c
index 36c4b73f93..93ba79c7e4 100644
--- a/target-mips/op_helper.c
+++ b/target-mips/op_helper.c
@@ -172,6 +172,18 @@ static always_inline void set_HILO (uint64_t HILO)
     env->HI[0][env->current_tc] = (int32_t)(HILO >> 32);
 }
 
+static always_inline void set_HIT0_LO (uint64_t HILO)
+{
+    env->LO[0][env->current_tc] = (int32_t)(HILO & 0xFFFFFFFF);
+    T0 = env->HI[0][env->current_tc] = (int32_t)(HILO >> 32);
+}
+
+static always_inline void set_HI_LOT0 (uint64_t HILO)
+{
+    T0 = env->LO[0][env->current_tc] = (int32_t)(HILO & 0xFFFFFFFF);
+    env->HI[0][env->current_tc] = (int32_t)(HILO >> 32);
+}
+
 void do_mult (void)
 {
     set_HILO((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1);
@@ -213,7 +225,78 @@ void do_msubu (void)
     tmp = ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1);
     set_HILO(get_HILO() - tmp);
 }
-#endif
+
+/* Multiplication variants of the vr54xx. */
+void do_muls (void)
+{
+    set_HI_LOT0(0 - ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1));
+}
+
+void do_mulsu (void)
+{
+    set_HI_LOT0(0 - ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1));
+}
+
+void do_macc (void)
+{
+    set_HI_LOT0(((int64_t)get_HILO()) + ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1));
+}
+
+void do_macchi (void)
+{
+    set_HIT0_LO(((int64_t)get_HILO()) + ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1));
+}
+
+void do_maccu (void)
+{
+    set_HI_LOT0(((uint64_t)get_HILO()) + ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1));
+}
+
+void do_macchiu (void)
+{
+    set_HIT0_LO(((uint64_t)get_HILO()) + ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1));
+}
+
+void do_msac (void)
+{
+    set_HI_LOT0(((int64_t)get_HILO()) - ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1));
+}
+
+void do_msachi (void)
+{
+    set_HIT0_LO(((int64_t)get_HILO()) - ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1));
+}
+
+void do_msacu (void)
+{
+    set_HI_LOT0(((uint64_t)get_HILO()) - ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1));
+}
+
+void do_msachiu (void)
+{
+    set_HIT0_LO(((uint64_t)get_HILO()) - ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1));
+}
+
+void do_mulhi (void)
+{
+    set_HIT0_LO((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1);
+}
+
+void do_mulhiu (void)
+{
+    set_HIT0_LO((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1);
+}
+
+void do_mulshi (void)
+{
+    set_HIT0_LO(0 - ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1));
+}
+
+void do_mulshiu (void)
+{
+    set_HIT0_LO(0 - ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1));
+}
+#endif /* TARGET_LONG_BITS > HOST_LONG_BITS */
 
 #if HOST_LONG_BITS < 64
 void do_div (void)