+ else if (strcmp(argv[1], "loadstate") == 0)
+ {
+ unsigned char chunk;
+ char header[12];
+ gzFile f;
+ int len;
+
+ if (argc != 3)
+ usage(argv[0]);
+
+ f = gzopen(argv[2], "rb");
+ if (f == NULL) {
+ perror("gzopen");
+ return 1;
+ }
+
+ checked_gzread(f, header, sizeof(header));
+ if (strncmp(header, "PicoSEXT", 8) != 0) {
+ fprintf(stderr, "bad header\n");
+ return 1;
+ }
+
+ while (!gzeof(file))
+ {
+ ret = gzread(f, &chunk, 1);
+ if (ret == 0)
+ break;
+ checked_gzread(f, &len, 4);
+ //printf("%2d %x\n", chunk, len);
+ switch (chunk) {
+ case 3: // VRAM
+ checked_gzread(f, data, len);
+ size += len;
+ break;
+ case 5: // CRAM
+ checked_gzread(f, data + 0x10000, len);
+ size += len;
+ break;
+ case 6: // VSRAM
+ checked_gzread(f, data + 0x10080, len);
+ size += len;
+ break;
+ case 8: // video
+ checked_gzread(f, data + 0x10100, len);
+ data[size+0] &= ~1; // no display disable
+ data[size+1] |= 0x40; // no blanking
+ size += 0x20;
+ break;
+ default:
+ if (chunk > 64+8) {
+ fprintf(stderr, "bad chunk: %d\n", chunk);
+ return 1;
+ }
+ gzseek(f, len, SEEK_CUR);
+ break;
+ }
+ }
+ gzclose(f);
+ if (size != 0x10120) {
+ fprintf(stderr, "bad final size: %x\n", size);
+ return 1;
+ }
+ // unbyteswap *RAMs (stored byteswapped)
+ for (i = 0; i < 0x10100; i += 2) {
+ int tmp = data[i];
+ data[i] = data[i + 1];
+ data[i + 1] = tmp;
+ }
+ }
+ else if (strcmp(argv[1], "recvvram") == 0)
+ {
+ if (argc != 3)
+ usage(argv[0]);
+
+ file = fopen(argv[2], "wb");
+ if (file == NULL) {
+ fprintf(stderr, "can't open file: %s\n", argv[2]);
+ return 1;
+ }
+
+ size = 0x10000;
+ memset(data, 0, size);
+ }