core vdp, fix crash in VSRAM rendering

real fix, replacing the kluge in 059e2e3

diff --git a/pico/draw.c b/pico/draw.c
index f1d92f4..e3cfe03 100644 (file)
--- a/pico/draw.c
+++ b/pico/draw.c
@@ -59,8 +59,8 @@ static u16 DefOutBuff[320*2] ALIGNED(4);
 void *DrawLineDestBase = DefOutBuff;\r
 int DrawLineDestIncrement;\r
 \r
-static u32 HighCacheA[42*2+1]; // caches for high layers\r
-static u32 HighCacheB[42*2+1];\r
+static u32 HighCacheA[41*2+1]; // caches for high layers\r
+static u32 HighCacheB[41*2+1];\r
 static s32 HighPreSpr[128*2*2]; // slightly preprocessed sprites (2 banks a 128)\r
 static int HighPreSprBank;\r
 \r
@@ -419,7 +419,7 @@ void funcname(struct TileStrip *ts, int lflags, int cellskip)               \
   if (ts->hscroll & 0x0f) {                                            \\r
     int adj = ((ts->hscroll ^ dx) >> 3) & 1;                           \\r
     cell -= adj + 1;                                                   \\r
-    ts->cells -= adj;                                                  \\r
+    ts->cells -= adj + 1;                                              \\r
     PicoMem.vsram[0x3e] = PicoMem.vsram[0x3f] = lflags >> 16;          \\r
   }                                                                    \\r
   cell+=cellskip;                                                      \\r