/* recalculate last and delta values for next blocks */
#define TM2_RECALC_BLOCK(CHR, stride, last, CD) {\
- CD[0] = CHR[1] - last[1];\
- CD[1] = (int)CHR[stride + 1] - (int)CHR[1];\
+ CD[0] = (unsigned)CHR[ 1] - (unsigned)last[1];\
+ CD[1] = (unsigned)CHR[stride + 1] - (unsigned) CHR[1];\
last[0] = (int)CHR[stride + 0];\
last[1] = (int)CHR[stride + 1];}