2017-11-09 19:21:37 +00:00
# Apple 2 Soft Switch
2017-11-09 19:54:33 +00:00
Inspired by Anthony's program over in [c.s.a2 ](https://groups.google.com/d/msg/comp.sys.apple2/knWRdHp9ZTc/TWV5ZkyTCQAJ ) here is a Applesoft BASIC program to display a memory map and limited soft switches.
2017-11-09 19:21:37 +00:00
# Commands
* ESC = exit
* SPC = toggle status lines to show description / soft-switch addresss
NOTE: The IO soft switch address don't exactly match the hardware switches due to:
a) some are contiguous
b) some require multiple locations to activate (i.e. TEXT/GR and Lo-Res/Hi-Res)
2017-11-10 04:18:19 +00:00
# Future Versions?
2017-11-10 04:20:04 +00:00
Removing the `RW` columns gives us a little more space on the right. Here is a mock-up:
2017-11-10 04:18:19 +00:00
```
v4 ___READ___ __WRITE___
$FFFF| ROM | ROM | C088 BANK2
$E000|__________|__________| /C081 HRAMWRT
| ROM | ROM | / C080 HRAMRD
$D000|__________|__________|/ C057 HIRES
:__________:__________: C055 PAGE2
$BFFF| AUX | AUX |\ C008 ALTZP
$6000|__________|__________| \ C004 RAMWRT
| AUX | AUX | \C002 RAMRD
$4000|__________|__________| C000 80STORE
```
# History
## Ver 4
* Version number now shown in top left
* Fixed 80STORE=1 display for HGR1 and TEXT1
* Removed most odd addresses in the main 48 KB as they were cluttering up the display too much.
