mirror of
https://github.com/forth-ev/VolksForth.git
synced 2024-12-25 10:29:25 +00:00
112 lines
4.2 KiB
Plaintext
112 lines
4.2 KiB
Plaintext
|
Changes in CP/M-volksFORTH between Version 3.80 and Version 3.80a
|
||
|
|
UH 04March88
|
||
|
|
=============================================================================
|
||
|
|
|
||
|
|
The original CP/M-VolksForth was incompatible with CP/M+. Because of the
|
||
|
|
many version necessary to support the different CP/M Versions, a rework of
|
||
|
|
CP/M-volksForth was neccessary. We have fixed some issues on the way.
|
||
|
|
|
||
|
|
1. Changes in the Kernel (SOURCE.FB)
|
||
|
|
|
||
|
|
* The Terminal-I/O has been reduced to a minimal set, so that the kernal
|
||
|
|
is usable right away. The line editor has been moved out the kernal
|
||
|
|
together with all "Terminal:" functions into the file XINOUT.FB
|
||
|
|
|
||
|
|
* The kernel does not contain a fileinterface anymore, it uses the file
|
||
|
|
that has been specified on the commandline (default-file). Usually this
|
||
|
|
file contains the fileinterface which is loaded on the next step.
|
||
|
|
|
||
|
|
* direct Disk-I/O is not supported by the kernel anymore, because it is
|
||
|
|
not compatible with CP/M+. Diskaccess is only done via BDOS.
|
||
|
|
|
||
|
|
* many functions of the kernel has been newly implemented in assembler,
|
||
|
|
a new word "search" has been added that allows quick string searches
|
||
|
|
with capitalization
|
||
|
|
|
||
|
|
* the word CAPITALIZE has been replaced with the word UPPER. The word "exit"
|
||
|
|
in NAME has been moved because of this.
|
||
|
|
|
||
|
|
* the kernel prints its size in 256 byte pages when leaving. This can be used
|
||
|
|
to dump the kernel to disk using the CP/M "SAVE" command (don't forget to
|
||
|
|
make your changes in the Forth kernel with the forth word "save" first).
|
||
|
|
|
||
|
|
* SAVE-BUFFERS has been extended by a deferred wird SAVE-DOS-BUFFERS to
|
||
|
|
solve an issue with CP/M+
|
||
|
|
|
||
|
|
* the deferred word POSTLUDE has been added. It is responsible for the
|
||
|
|
last action before the CP/M warmstart (enable cursor, clear screen,
|
||
|
|
print size of the kernel ...)
|
||
|
|
|
||
|
|
* the command line from CP/M is now copied into the TIB (terminal input
|
||
|
|
buffer) and can be interpreted from there. Using the "default-file" will
|
||
|
|
however clear the TIB, so that this function can only be used after the
|
||
|
|
fileinterface is loaded (DRVINIT does not open the "default-file" then)
|
||
|
|
|
||
|
|
* the Interpret-Loop has been reworked and has been extended by the
|
||
|
|
word PROMPT. The special word ">INTERPRET" has been removed. Its
|
||
|
|
function is now done by the (normal) deferred word PARSER.
|
||
|
|
|
||
|
|
* the Control-Structur words (IF, WHILE, ...) are now available
|
||
|
|
outside word definitions (interactivly)
|
||
|
|
|
||
|
|
* misc small changes
|
||
|
|
|
||
|
|
|
||
|
|
2. Changes in the editor (EDITOR.FB, STRING.FB)
|
||
|
|
|
||
|
|
* the tagging od screens has been fixed and it now works correctly
|
||
|
|
with search/replace and with SHOWLOAD
|
||
|
|
|
||
|
|
* VIEW has been changed, it no searched inside the word enclosed by blanks
|
||
|
|
|
||
|
|
* the associative file is now displayed
|
||
|
|
|
||
|
|
* when using search/replace, the screennumber is incremented on the
|
||
|
|
screen to give a visual feedback of the search function
|
||
|
|
|
||
|
|
* the string search is now implemented in the kernal, the other string
|
||
|
|
functions has been moved into EDITOR.FB. STRING.FB has been removed.
|
||
|
|
|
||
|
|
3. Changes in the Multitasker (TASKER.FB)
|
||
|
|
|
||
|
|
* the word TASK has been changed: the constant is now defined before
|
||
|
|
the task, it is now possible to forget a task with FORGET <taskname>
|
||
|
|
|
||
|
|
* the PAUSE/WAKE/STOP flow has been changed, however there is no change
|
||
|
|
in the usage
|
||
|
|
|
||
|
|
4. Changes in the Fileinterface (FILEINT.FB)
|
||
|
|
|
||
|
|
* The fileinterface has been reworked. Some errors have been removed and
|
||
|
|
the names of many words have been changed to be more systematic. The
|
||
|
|
usage however is the same.
|
||
|
|
|
||
|
|
|
||
|
|
5. Terminal-Installation (adapt CP/M-volksForth to your CP/M system)
|
||
|
|
|
||
|
|
* because the kernel does not contain a fileinterface anymore, the file-
|
||
|
|
interface must be loaded before the simple-editor:
|
||
|
|
|
||
|
|
A> kernel fileint.fb
|
||
|
|
1 load
|
||
|
|
use primed.fb 1 load
|
||
|
|
use terminal.fb
|
||
|
|
|
||
|
|
|
||
|
|
6. How to create a standard CP/M-volksForth system:
|
||
|
|
|
||
|
|
* use the follwing command sequence to create the VOLKS4TH.COM from
|
||
|
|
a KERNEL.COM file:
|
||
|
|
|
||
|
|
A> kernel fileint.fb
|
||
|
|
1 load
|
||
|
|
include startup.fb
|
||
|
|
|
||
|
|
7. new and removed files
|
||
|
|
|
||
|
|
- XINOUT.FB terminalfunctions and line editor
|
||
|
|
- COPY.FB the functions COPY and CONVEY
|
||
|
|
- STRING.FB (removed)
|
||
|
|
|
||
|
|
|