m6569.h: fix sprite unit expand flag regression

floooh · floooh · commit 14e443a65f77 · 2025-01-03T19:07:18.000+01:00
diff --git a/chips/m6569.h b/chips/m6569.h
@@ -533,7 +533,7 @@ static void _m6569_io_update_sunit(m6569_t* vic, size_t i, uint8_t mx, uint8_t m
     /* 1. The expansion flip flop is set as long as the bit in MxYE in register
         $d017 corresponding to the sprite is cleared.
     */
-    su->expand |= ~(mye & mask);
+    su->expand |= ~mye & mask;
 }
 
 // read chip registers

Original file line number	Diff line number	Diff line change
`@@ -533,7 +533,7 @@ static void _m6569_io_update_sunit(m6569_t* vic, size_t i, uint8_t mx, uint8_t m`
`533`	`533`	`/* 1. The expansion flip flop is set as long as the bit in MxYE in register`
`534`	`534`	`$d017 corresponding to the sprite is cleared.`
`535`	`535`	`*/`
`536`		`- su->expand \|= ~(mye & mask);`
	`536`	`+ su->expand \|= ~mye & mask;`
`537`	`537`	`}`
`538`	`538`
`539`	`539`	`// read chip registers`