More Fixes

The possibility of the RSP instruction at address 0xFFC being JR was
never accounted for. This fixes Wave Race and Star Wars - Shadow of the
Empire.

The accumulator analysis was wrong, which broke games like Mario No
Photopie.

Source/RSP/Recompiler Analysis.c

@@ -247,20 +247,25 @@ DWORD WriteToAccum2 (int Location, int PC, BOOL RecursiveCall) {
 				case RSP_VECTOR_VMADL:
 				case RSP_VECTOR_VMADM:
 				case RSP_VECTOR_VMADN:
+					return TRUE;
 				case RSP_VECTOR_VMADH:
+					if (Location == Low16BitAccum) { break; }
 					return TRUE;
+
 				case RSP_VECTOR_VABS:
 				case RSP_VECTOR_VADD:
 				case RSP_VECTOR_VADDC:
 				case RSP_VECTOR_VSUB:
 				case RSP_VECTOR_VSUBC:
 				case RSP_VECTOR_VAND:
+				case RSP_VECTOR_VNAND:
 				case RSP_VECTOR_VOR:
+				case RSP_VECTOR_VNOR:
 				case RSP_VECTOR_VXOR:
 				case RSP_VECTOR_VNXOR:
 					/* since these modify the accumulator lower-16 bits we can */
 					/* safely assume these 'reset' the accumulator no matter what */
-					return FALSE;
+					//			return FALSE;
 				case RSP_VECTOR_VCR:
 				case RSP_VECTOR_VCH:
 				case RSP_VECTOR_VCL:
@@ -272,11 +277,11 @@ DWORD WriteToAccum2 (int Location, int PC, BOOL RecursiveCall) {
 				case RSP_VECTOR_VLT:
 				case RSP_VECTOR_VEQ:
 				case RSP_VECTOR_VGE:
+				case RSP_VECTOR_VMRG:
 					if (Location == Low16BitAccum) { return FALSE; }
 					break;
 
 				case RSP_VECTOR_VMOV:
-				case RSP_VECTOR_VMRG:
 					break;
 				case RSP_VECTOR_VSAW:
 					return TRUE;

Source/RSP/Recompiler CPU.c

@@ -878,7 +878,7 @@ void CompilerRSPBlock ( void ) {
 			CompilePC += 4;
 			break;
 		}
-	} while ( NextInstruction != FINISH_BLOCK && CompilePC < 0x1000);
+	} while (NextInstruction != FINISH_BLOCK && (CompilePC < 0x1000 || NextInstruction == DELAY_SLOT));
 	CPU_Message("==== end of recompiled code ====");
 
 	if (Compiler.bReOrdering == TRUE) {