Version 1.24

CC-DMA fixes.

changes.txt

@@ -1,3 +1,6 @@
+SA-1 Pack v1.24:
+	- Fixed Character Conversion DMA randomly freezing the game when SA-1 is unable to receive IRQs.
+
 SA-1 Pack v1.23:
 	- Made the dynamic sprite uploader only run on level and title screen game mode. This may fix some issues with dynamic sprites getting garbaged graphics on fade in/out or even unwanted uploads.
 

readme.txt

@@ -4,7 +4,7 @@
   \___ \ / /\ \______| |   |  ___/ _` |/ __| |/ /
   ____) / ____ \     | |   | |  | (_| | (__|   < 
  |_____/_/    \_\    |_|   |_|   \__,_|\___|_|\_\
-   by Vitor Vilela                 Version 1.23
+   by Vitor Vilela                 Version 1.24
 
 The SA-1 Pack consist of a couple of patches that enable
 SA-1 and prepare your SMW ROM to use the SA-1 CPU in the

sa1.asm

@@ -480,6 +480,9 @@ Character_Conversion_DMA:			; CCDMA Routine.
 	STY $2200				; /
 	DEY					; \ Increase $2116/$2117 then writing to $2119
 	STY $2115				; /
+-	LDA $318D				; \ Make sure that Character Conversion is ON. 
+	BEQ -					; |
+	STZ $318D				; /
 						;
 	%ccdmaslot(0)				; \ Unrolled loop
 	%ccdmaslot(1)				;  | to run each character conversion DMA table slot.
@@ -750,6 +753,7 @@ ProcessRequest:
 	
 EnableChvDMA:
 	LDA #$B0				; \ Enable Character Conversion DMA CC1 (BW-RAM->I-RAM)
+	STA $318D				;  |
 	STA $2230				; /
 	BRA SA1_IRQEnding			; Return