Entering a blank command causes the last command to repeat. This doesn't make sense for the following commands:
help, quit, regs, context, printenv, setenv, nvedit, amicint, viaint.
If debugging with Xcode using Terminal.app for the console, Terminal.app may send empty lines to the dingusppc debugger while resizing the Terminal.app window and it will do this forever.
As a workaround, use std::cin.clear() to clear the input buffer before getline and loop until the terminal window size is not changing or the input line is not empty.
Use explicit cast when converting large integer types to smaller integer types when it is known that the most significant bytes are not required.
For pcidevice, check the ROM file size before casting to int. We'll allow expansion ROM sizes up to 4MB but usually they are 64K, sometimes 128K, rarely 256K.
for machinefactory, change the type to size_t so that it can correctly get the size of files that are larger than 4GB; it already checks the file size is 4MB before we need to cast to uint32_t.
For floppyimg, check the image size before casting to int. For raw images, only allow files up to 2MB. For DiskCopy42 images, it already checks the file size, so do the cast after that.
setenv doesn't allow entering strings that include multiple lines which is useful for nvramrc.
nvedit uses CTRL-C to end editing, like Open Firmware. It does not support deleting characters from a line or editing previous lines or any other special keys. It doesn't have nvstore or nvquit or nvrecover commands. Basically, you should edit your nvramrc in a text editor, then copy and paste into the debugger.
"This commit fixes as much as required to compile the project
in a cross-platform fashion. Some MSV-specific warnings are
simply ignored for now." -max
