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Attempt read block.

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This commit is contained in:
Thomas Harte
2025-11-21 13:08:52 -05:00
parent 822aa4155d
commit c464ffaeac
1 changed files with 29 additions and 2 deletions
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31
Machines/Enterprise/HostFSHandler.cpp
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@@ -24,6 +24,9 @@ void HostFSHandler::perform(const uint8_t function, uint8_t &a, uint16_t &bc, ui
const auto read_de = [&]() {
return accessor_.hostfs_read(de++);
};
const auto write_de = [&](const uint8_t ch) {
return accessor_.hostfs_write(de++, ch);
};
const auto find_channel = [&]() {
if(a == 255) {
return channels_.end();
@@ -97,7 +100,7 @@ void HostFSHandler::perform(const uint8_t function, uint8_t &a, uint16_t &bc, ui
} break;
// Page 55.
case uint8_t(EXOS::Function::ReadCharacter):
case uint8_t(EXOS::Function::ReadCharacter): {
auto channel = find_channel();
if(channel == channels_.end()) {
set_error(EXOS::Error::ChannelIllegalOrDoesNotExist);
@@ -111,7 +114,31 @@ void HostFSHandler::perform(const uint8_t function, uint8_t &a, uint16_t &bc, ui
} else {
set_error(EXOS::Error::EndOfFileMetInRead);
}
break;
} break;
// Page 55.
case uint8_t(EXOS::Function::ReadBlock): {
auto channel = find_channel();
if(channel == channels_.end()) {
set_error(EXOS::Error::ChannelIllegalOrDoesNotExist);
break;
}
set_error(EXOS::Error::NoError);
while(true) {
const auto next = channel->second.get();
if(!channel->second.eof()) {
bc--;
write_de(next);
if(!bc) {
break;
}
} else {
set_error(EXOS::Error::EndOfFileMetInRead);
break;
}
}
} break;
}
}