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→Technical specifications
*RAM: 1K
*ROM: Built in game (4k) Rocket Patrol
APF uses the same Motorola MC-6847 VDG as the TRS-80 COCO, Dragon computer, and NEC TREK. But does so in a different way. Like the NEC Trek, the APF dosen't use the SAM memory manager to drive the VDG. It uses it's own memory management system.
On the COCO, or any normal system a 256x192 graphic mode would need 6K of ram. (256/8 = 32bytes per line * 192 lines = 6144Bytes or 6K). However, the MP 1000 has only 1K of RAM available.
What APF does, is use the first half of that RAM (0-511) as a 32x12 character table. Much like the text mode. It then uses the other half (512-1023) as a character description table of 32, 8x16 highres or 4x16 colour characters.
This introduces some limitations, like not being able to display a full screen bitmaped image, but also makes it much simpler to manage game graphics.
[[Category:Console]]
