// license:BSD-3-Clause // copyright-holders:Robbbert #include "emu.h" #include "machine/z80bin.h" /*------------------------------------------------- z80bin_load_file - load a z80bin file into memory -------------------------------------------------*/ image_init_result z80bin_load_file(device_image_interface *image, address_space &space, const char *file_type, uint16_t *exec_addr, uint16_t *start_addr, uint16_t *end_addr) { int ch; uint16_t args[3]; uint16_t i=0, j, size; uint8_t data; char pgmname[256]; char message[512]; image->fseek(7, SEEK_SET); while((ch = image->fgetc()) != 0x1A) { if (ch == EOF) { image->seterror(IMAGE_ERROR_INVALIDIMAGE, "Unexpected EOF while getting file name"); image->message(" Unexpected EOF while getting file name"); return image_init_result::FAIL; } if (ch != '\0') { if (i >= (ARRAY_LENGTH(pgmname) - 1)) { image->seterror(IMAGE_ERROR_INVALIDIMAGE, "File name too long"); image->message(" File name too long"); return image_init_result::FAIL; } pgmname[i] = ch; /* build program name */ i++; } } pgmname[i] = '\0'; /* terminate string with a null */ if (image->fread(args, sizeof(args)) != sizeof(args)) { image->seterror(IMAGE_ERROR_INVALIDIMAGE, "Unexpected EOF while getting file size"); image->message(" Unexpected EOF while getting file size"); return image_init_result::FAIL; } exec_addr[0] = little_endianize_int16(args[0]); start_addr[0] = little_endianize_int16(args[1]); end_addr[0] = little_endianize_int16(args[2]); size = (end_addr[0] - start_addr[0] + 1) & 0xffff; /* display a message about the loaded quickload */ image->message(" %s\nsize=%04X : start=%04X : end=%04X : exec=%04X",pgmname,size,start_addr[0],end_addr[0],exec_addr[0]); for (i = 0; i < size; i++) { j = (start_addr[0] + i) & 0xffff; if (image->fread(&data, 1) != 1) { snprintf(message, ARRAY_LENGTH(message), "%s: Unexpected EOF while writing byte to %04X", pgmname, (unsigned) j); image->seterror(IMAGE_ERROR_INVALIDIMAGE, message); image->message("%s: Unexpected EOF while writing byte to %04X", pgmname, (unsigned) j); return image_init_result::FAIL; } space.write_byte(j, data); } return image_init_result::PASS; }