? patch-qemu-sparc-xcc_ops.txt
Index: op.c
===================================================================
RCS file: /sources/qemu/qemu/target-sparc/op.c,v
retrieving revision 1.18
diff -u -p -r1.18 op.c
--- op.c	30 Oct 2005 17:28:50 -0000	1.18
+++ op.c	7 Apr 2006 22:04:40 -0000
@@ -415,9 +415,9 @@ void OPPROTO op_addx_T1_T0(void)
 void OPPROTO op_addx_T1_T0_cc(void)
 {
     target_ulong src1;
-
+    target_ulong has_carry = FLAG_SET(PSR_CARRY);
     src1 = T0;
-    T0 += T1 + FLAG_SET(PSR_CARRY);
+    T0 += T1 + has_carry;
     env->psr = 0;
 #ifdef TARGET_SPARC64
     if (!(T0 & 0xffffffff))
@@ -435,7 +435,7 @@ void OPPROTO op_addx_T1_T0_cc(void)
 	env->xcc |= PSR_ZERO;
     if ((int64_t) T0 < 0)
 	env->xcc |= PSR_NEG;
-    if (T0 < src1)
+    if (T0 < src1 || (has_carry && T0 <= src1))
 	env->xcc |= PSR_CARRY;
     if (((src1 ^ T1 ^ -1) & (src1 ^ T0)) & (1ULL << 63))
 	env->xcc |= PSR_OVF;
@@ -444,7 +444,7 @@ void OPPROTO op_addx_T1_T0_cc(void)
 	env->psr |= PSR_ZERO;
     if ((int32_t) T0 < 0)
 	env->psr |= PSR_NEG;
-    if (T0 < src1)
+    if (T0 < src1 || (has_carry && T0 <= src1))
 	env->psr |= PSR_CARRY;
     if (((src1 ^ T1 ^ -1) & (src1 ^ T0)) & (1 << 31))
 	env->psr |= PSR_OVF;
@@ -505,9 +505,9 @@ void OPPROTO op_subx_T1_T0(void)
 void OPPROTO op_subx_T1_T0_cc(void)
 {
     target_ulong src1;
-
+    target_ulong has_carry = FLAG_SET(PSR_CARRY);
     src1 = T0;
-    T0 -= T1 + FLAG_SET(PSR_CARRY);
+    T0 -= T1 + has_carry;
     env->psr = 0;
 #ifdef TARGET_SPARC64
     if (!(T0 & 0xffffffff))
@@ -525,7 +525,7 @@ void OPPROTO op_subx_T1_T0_cc(void)
 	env->xcc |= PSR_ZERO;
     if ((int64_t) T0 < 0)
 	env->xcc |= PSR_NEG;
-    if (src1 < T1)
+    if (src1 < T1 || (has_carry && src1 <= T1))
 	env->xcc |= PSR_CARRY;
     if (((src1 ^ T1) & (src1 ^ T0)) & (1ULL << 63))
 	env->xcc |= PSR_OVF;
@@ -534,7 +534,7 @@ void OPPROTO op_subx_T1_T0_cc(void)
 	env->psr |= PSR_ZERO;
     if ((int32_t) T0 < 0)
 	env->psr |= PSR_NEG;
-    if (src1 < T1)
+    if (src1 < T1 || (has_carry && src1 <= T1))
 	env->psr |= PSR_CARRY;
     if (((src1 ^ T1) & (src1 ^ T0)) & (1 << 31))
 	env->psr |= PSR_OVF;