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acorn/z88_impexp.cpp, nascom/nascom1.cpp: Modernize file I/O

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This commit is contained in:
AJR 2023-09-16 20:35:42 -04:00
parent 102aa77ccc
commit be3919035b
2 changed files with 23 additions and 9 deletions
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13
src/mame/acorn/z88_impexp.cpp
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@ -176,11 +176,16 @@ std::pair<std::error_condition, std::string> z88_impexp_device::call_load()
// file data
m_queue.push(0x1b);
m_queue.push('F');
while (!image_feof())
util::core_file &file = image_core_file();
std::error_condition err;
while (true)
{
size_t actual;
uint8_t b;
if (fread(&b, 1) != 1)
return std::make_pair(image_error::UNSPECIFIED, std::string());
err = file.read(&b, 1, actual);
if (err || actual != 1)
break;
// Escape non printable characters
if ((b < 0x20 || b >= 0x7f) && b != 0x0a && b != 0x0d && b != 0x09)
@ -205,7 +210,7 @@ std::pair<std::error_condition, std::string> z88_impexp_device::call_load()
m_queue.push('E');
queue();
return std::make_pair(std::error_condition(), std::string());
return std::make_pair(err, std::string());
}

19
src/mame/nascom/nascom1.cpp
View File

@ -319,9 +319,12 @@ TIMER_DEVICE_CALLBACK_MEMBER( nascom2_state::nascom2_kansas_r )
template<int Dest>
SNAPSHOT_LOAD_MEMBER(nascom_state::snapshot_cb)
{
util::core_file &file = image.image_core_file();
uint8_t line[29];
while (image.fread(&line, sizeof(line)) == sizeof(line))
std::error_condition err;
size_t actual;
while (!(err = file.read(&line, sizeof(line), actual)) && actual == sizeof(line))
{
unsigned int addr, b[8], dummy;
@ -346,13 +349,15 @@ SNAPSHOT_LOAD_MEMBER(nascom_state::snapshot_cb)
return std::make_pair(image_error::INVALIDIMAGE, "Unsupported file format");
}
dummy = 0x00;
while (!image.image_feof() && dummy != 0x0a && dummy != 0x1f)
while (dummy != 0x0a && dummy != 0x1f)
{
image.fread(&dummy, 1);
err = file.read(&dummy, 1, actual);
if (err || actual != 1)
return std::make_pair(err, std::string());
}
}
return std::make_pair(std::error_condition(), std::string());
return std::make_pair(err, std::string());
}
@ -372,7 +377,11 @@ std::pair<std::error_condition, std::string> nascom2_state::load_cart(
return std::make_pair(image_error::INVALIDLENGTH, "Unsupported image file size (must be no more than 4K)");
slot->rom_alloc(slot->length(), GENERIC_ROM8_WIDTH, ENDIANNESS_LITTLE);
slot->fread(slot->get_rom_base(), slot->length());
size_t actual;
std::error_condition const err = slot->image_core_file().read(slot->get_rom_base(), slot->length(), actual);
if (err || actual != slot->length())
return std::make_pair(err ? err : std::errc::io_error, std::string());
// we just assume that socket1 should be loaded to 0xc000 and socket2 to 0xd000
switch (slot_id)