Difference between revisions of "BrunWord"
(→ROM Cartridge and 8bit Status Port) |
(→Technical) |
||
| Line 37: | Line 37: | ||
ROM version has a size of 256K. It is split into 16K pages. 2 Pages are standard CPC roms, one of which is a "extension rom". | ROM version has a size of 256K. It is split into 16K pages. 2 Pages are standard CPC roms, one of which is a "extension rom". | ||
| − | |||
| − | The ROM Select port (&DF00) is decoded and has 2 roles. First is to select which ROM page appears in the range &C000-&FFFF of the Z80's address space. | + | Part of the Brunword word processor is copied into RAM. This is done by it's "extension rom". |
| + | |||
| + | The ROM Select port (&DF00) is decoded and has 2 roles. | ||
| + | |||
| + | First is to select which ROM page appears in the range &C000-&FFFF of the Z80's address space. (It seems bit 7,6,5,4 must be 0). | ||
| + | Bits 3..0 are decoded as the page number. Page 1 and 2 only seem to be visible at this time. | ||
| + | |||
The second role (when bit 5,4 are used), makes a page visible in the range &4000-&FFFF of the Z80's address space. | The second role (when bit 5,4 are used), makes a page visible in the range &4000-&FFFF of the Z80's address space. | ||
| + | Bit 5 seems to be rom enable/disable, bit 4 is set for the second role (0 for other), and bits 3..0 are the page number. | ||
The exact decoding of the ROM select port is unknown. | The exact decoding of the ROM select port is unknown. | ||
Revision as of 06:58, 6 August 2011
BrunWord is a word-processor, spelling checker and Datafile from Brunning Software.
Contents
Versions
- BrunWord 6128 requires 128K RAM (works on CPC 6128, or on CPC 464 with Standard Memory Expansions). Available as Disc-version and ROM-version.
- BrunWord 464 works on any CPC 464, 664, or 6128. According to the manual, this comes on disc, too, ie. not on cassette (?)
- Newer/older versions - early versions (1985) didn't have the spell check
Covers
- BrunWord 6128
Back Cover
Front Cover
Disc
- BrunWord 6128
side B
side A
ROM Cartridge and 8bit Status Port
Brunword Mk2 RW383 ROM
Eight Bit Status Port
.jpg)
_(for_Brunword).jpg)
Technical
ROM version has a size of 256K. It is split into 16K pages. 2 Pages are standard CPC roms, one of which is a "extension rom".
Part of the Brunword word processor is copied into RAM. This is done by it's "extension rom".
The ROM Select port (&DF00) is decoded and has 2 roles.
First is to select which ROM page appears in the range &C000-&FFFF of the Z80's address space. (It seems bit 7,6,5,4 must be 0). Bits 3..0 are decoded as the page number. Page 1 and 2 only seem to be visible at this time.
The second role (when bit 5,4 are used), makes a page visible in the range &4000-&FFFF of the Z80's address space. Bit 5 seems to be rom enable/disable, bit 4 is set for the second role (0 for other), and bits 3..0 are the page number.
The exact decoding of the ROM select port is unknown. The exact function of all the data bits is not known.
Manual
Downloads
- Brunword 6128 (disc) (Brunning Software).zip (DSK for Emulators)
- Brunword 6128 as ROM version - none such? (should exist, according to Hwlist from retroisle
- Brunword 464 as DSK versions - none such? (should exist, according to manual)
- Brunword 464 as ROM versions - none such? (might also exist?)
