Posted By
IstvanV
on 2008-01-30
07:59:39
|  Re: Plus4emu disk read question
There is no IEC drive emulation yet, only hardware level emulation. This has been on the "todo" list for quite some time, but I did not actually implement it so far.
So, with the current version you can load/save PRG files with the usual F8/Shift-F8 dialogs, or using the p4fileio.rom extension, or with the L/S commands of the debugger. p4fileio.rom is basically just a hack that patches the load/save vectors so that it is possible to access the file system directly by using device 7, and it also implements a simple tape turbo. It is not much more useful than just using the GUI menus for loading or saving PRG files, but if you do want to use it anyway, it can be enabled by turning on virtual file I/O in the machine configuration, loading one of the configuration files that include "FileIO", and setting the working directory. To set the load and save vectors - which may be overwritten by the kernal other programs -, run G 63A in the monitor. The save mode is selected by writing to $647: $07, $17, $27, $37, or $47 will use file system access, or tape turbo with increasing speed, respectively.
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