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// 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, 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 >= (std::size(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 = little_endianize_int16(args[0]);
start_addr = little_endianize_int16(args[1]);
end_addr = little_endianize_int16(args[2]);
size = (end_addr - start_addr + 1) & 0xffff;
/* display a message about the loaded quickload */
image.message(" %s\nsize=%04X : start=%04X : end=%04X : exec=%04X",pgmname,size,start_addr,end_addr,exec_addr);
for (i = 0; i < size; i++)
{
j = (start_addr + i) & 0xffff;
if (image.fread(&data, 1) != 1)
{
snprintf(message, std::size(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;
}
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