+ if(written != dev->totalBytesPerChunk) return YAFFS_FAIL;
+
+
+ }
+
+ else {
+
+ if(data)
+ {
+ pos = (chunkInNAND % (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE)) * PAGE_SIZE;
+ h = filedisk.handle[(chunkInNAND / (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE))];
+
+ lseek(h,pos,SEEK_SET);
+ nRead = read(h, localBuffer,dev->nDataBytesPerChunk);
+ for(i = error = 0; i < dev->nDataBytesPerChunk && !error; i++){
+ if(REPORT_ERROR && localBuffer[i] != 0xFF){
+ printf("nand simulation: chunk %d data byte %d was %0x2\n",
+ chunkInNAND,i,localBuffer[i]);
+ error = 1;
+ }
+ }
+
+ for(i = 0; i < dev->nDataBytesPerChunk; i++)
+ localBuffer[i] &= data[i];
+
+ if(REPORT_ERROR && memcmp(localBuffer,data,dev->nDataBytesPerChunk))
+ printf("nand simulator: data does not match\n");
+
+ lseek(h,pos,SEEK_SET);
+ written = write(h,localBuffer,dev->nDataBytesPerChunk);
+
+ if(yaffs_testPartialWrite){
+ close(h);
+ exit(1);
+ }
+