Difference between revisions of "DR Graph"
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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 == | ||
* {{CPCPower|4325}} | * {{CPCPower|4325}} | ||
| + | * [http://bitsavers.trailing-edge.com/pdf/digitalResearch/gsx/DR_Graph_Users_Guide_Jun83.pdf User's Guide] | ||
| − | [[Category:Applications]] [[Category:Graphic]] [[Category:CP/M]] [[Category: | + | [[Category:Applications]] [[Category:Graphic]] [[Category:CP/M]] [[Category:GSX]] [[Category:Manual]] |
Latest revision as of 17:23, 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.
