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JohnElliott (talk | contribs) Added description of GRAPHRSX functions |
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[[File:graph1.png|right|thumb|250px|Demo using the normal PCW driver]] | [[File:graph1.png|right|thumb|250px|Demo using the normal PCW driver]] | ||
Program for making business graphics from [[Digital_Research|Digital Research]] | Program for making business graphics from [[Digital_Research|Digital Research]]. To run the application, place side A in drive A: and side B in drive B:. | ||
== RSX == | |||
The Amstrad version has a CP/M 3 RSX attached which modifies the program's behaviour: | |||
* BDOS function 2Dh is used to stop the program terminating if there is a disk error. | |||
* Input keycode 0FCh is translated to 1Bh (Escape) and 7Fh (Delete) is translated to 08h (Backspace). | |||
* The code which loads overlays searches for the overlay on drive M:, and then on A: or B: depending on the number of the overlay. | |||
* When files are being loaded from disk, BDOS function 2Ch is used to try and read as many records as possible in one go. | |||
== Links == | == Links == | ||
Latest revision as of 14:23, 4 April 2026
Program for making business graphics from Digital Research. To run the application, place side A in drive A: and side B in drive B:.
RSX
The Amstrad version has a CP/M 3 RSX attached which modifies the program's behaviour:
- BDOS function 2Dh is used to stop the program terminating if there is a disk error.
- Input keycode 0FCh is translated to 1Bh (Escape) and 7Fh (Delete) is translated to 08h (Backspace).
- The code which loads overlays searches for the overlay on drive M:, and then on A: or B: depending on the number of the overlay.
- When files are being loaded from disk, BDOS function 2Ch is used to try and read as many records as possible in one go.