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When Jon Saxton fixed some ZPM3 bugs, he also made some minor changes to the command line editing key bindings. These changes have been better documented. Thanks and credit to @jduraes for reporting this.
100 lines
3.5 KiB
Plaintext
100 lines
3.5 KiB
Plaintext
This is a generic ZPM3 adaptation for RomWBW.
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There are two ways to launch ZPM3. First, you can run the command
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CPMLDR from a CP/M 2.2 or Z-System command line. Alternatively, you
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boot directly into ZPM3 by choosing the ZPM3 disk from the RomWBW
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loader prompt. The ZPM3 disk must be bootable in this case.
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You may notice that there is a ZPMLDR application on the hard disk
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image. This application is equivalent to CPMLDR. It originally
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had some issues that prevented it from booting RomWBW properly,
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but those issues are now resolved (I think). Either ZPMLDR or CPMLDR
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can be used to launch ZPM3.
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I have not found a way to make ZPM3 start up with any drive other
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than A: as the system drive. So, during the load process, the boot
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drive and drive A: are "swapped" so that the boot drive is always
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drive A:. Use the ASSIGN command after starting ZPM3 to see how the
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drives get mapped.
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Per ZPM3 standard, files are distributed across different user areas
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depending on their usage. Normal applications are in user 15. Help
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files in user 10. Configuration files in user 14.
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In addition to the applications provided in the ZPM3 distribution, the
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normal CP/M 3 files are included in user area 15. A few typical ZCPR
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utility programs are also included in user area 15:
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- ALIAS
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- ARUNZ
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- ERASE
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- HELPC (named ZHELP)
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- LBREXT
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- SALIAS
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- SETPATH
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- VERRROR
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- VLU
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- ZCNFG
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- ERASE (named ZERASE)
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- ZEX
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- ZFILER
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- ZP
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- SHOW (named ZSHOW)
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- ZXD
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- EDITNDR
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- SAVENDR
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- SDZ
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It is a bit confusing, but the ZPM3 system file is called CPM3.SYS.
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This is the ZPM3 default configuration and I guess it is done this
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way to maximize compatibility with CP/M 3. You will notice that the
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startup banner will indicate ZPM3.
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In 2015, Jon Saxton released a patched version of ZPM3. The changes
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are documented in ZPM3FIX.TXT in the RomWBW distribution in the
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Source/ZPM3 directory. RomWBW uses the patched version of
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ZPM3. However, Jose Luis discovered that named directories do not
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work properly with these patches (see RomWBW GitHub Issue #324). I have
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subsequently added a small patch to correct this. The original
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unpatched copies of RESBDOS.SPR and BNKBDOS.SPR are included in the
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RomWBW build directory for ZPM3 as RESBDOS.SPR.bak and
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BNKBDOS.SPR.bak. If you want to revert to the unpatched release of
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ZPM3, just overlay RESBDOS.SPR and BNKBDOS.SPR with the .bak variants
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and regenerate RomWBW.
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jduraes reported an inconsistency between the key bindings for the
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built-in ZPM3 command line editing vs the key functions documented
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in ZPM3.TXT. Refer to RomWBW Issue https://github.com/wwarthen/RomWBW/issues/533.
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When Jon Saxton implemented a his patches to ZPM3, he also updated
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the command line history to function a bit more like one would typically
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expect (see ZPM3FIX.TXT). Part of this change included swapping the
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functions of ^W and ^X for WordStar compatibility:
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Old New Function
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^A ^A one word left
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^B ^B to beginning/end of line
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^C ^C reboot if at start of line
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^D ^D right one char
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^E ^E get previous line
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^F ^F right one word
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^G ^G delete char at cursor
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^H ^H destructive backspace
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^I ^I (TAB) ignored here
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^J ^J (LF) exit editor
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^K ^K delete all to the right
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^L ^L ignored
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^M ^M (CR) exit editor
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^N ^N ignored
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^O ^O ignored
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^P ^P toggle printer echoing
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^Q ^Q toggle autoprompt (if enabled)
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^R ^R ignored
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^S ^S left one char
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^T ^T delete word at cursor
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^U ^U add line to history
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^V ^V clear line, delete from history
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^W ^X get next line from history
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^X ^W delete all to the left
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^Y ^Y clear line
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