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Erase BIOS flash space in case the specified image file is not found.

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Disable loading flash data feature for the current Bochs BIOS.
This commit is contained in:
Volker Ruppert 2024-02-19 17:52:52 +01:00
parent 2c4fcc7981
commit 662fb097fe
1 changed files with 18 additions and 3 deletions
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21
bochs/memory/misc_mem.cc
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@ -2,7 +2,7 @@
// $Id$
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2001-2023 The Bochs Project
// Copyright (C) 2001-2024 The Bochs Project
//
// I/O memory handlers API Copyright (C) 2003 by Frank Cornelis
//
@ -443,10 +443,25 @@ void BX_MEM_C::load_ROM(const char *path, bx_phy_address romaddress, Bit8u type)
(unsigned) romaddress,
(unsigned) stat_buf.st_size,
path));
if (BX_MEM_THIS flash_type > 0) {
if ((type == 0) && !is_bochs_bios && (BX_MEM_THIS flash_type > 0)) {
bx_param_string_c *flash_data = SIM->get_param_string(BXPN_ROM_FLASH_DATA);
if (!flash_data->isempty()) {
BX_MEM_THIS load_flash_data(flash_data->getptr());
if (!BX_MEM_THIS load_flash_data(flash_data->getptr())) {
Bit32u foffset = 0, fsize = 0;
if (BX_MEM_THIS flash_type == 2) {
foffset = 0x8000; // 28F002BC-T
fsize = 0x4000;
} else if (BX_MEM_THIS flash_type == 1) {
foffset = 0x4000; // 28F001BX-T
fsize = 0x2000;
}
if (fsize > 0) {
for (i = 0; i < (int)fsize; i++) {
BX_MEM_THIS rom[BIOSROMSZ - foffset + i] = 0xff;
}
BX_MEM_THIS flash_modified = true;
}
}
}
}
}