You can view the output of the Apple by using the following commands.
Command |
Effect |
\ |
Display Apple output until a key pressed. |
DGR |
View Double lo-res (current page). |
DGR1 |
View Double lo-res Page 1. |
DGR2 |
View Double lo-res Page 2. |
DHGR |
View Double Hi-res (current page). |
DHGR1 |
View Double Hi-res Page 1. |
DHGR2 |
View Double Hi-res Page 2. |
GR |
View Lo-Res screen (current page). |
GR1 |
View Lo-Res screen Page 1. |
GR2 |
View Lo-Res screen Page 2. |
HGR |
View Hi-res (current page). |
HGR0 |
View pseudo Hi-res Page 0 ($0000). |
HGR1 |
View Hi-res Page 1 ($2000). |
HGR2 |
View Hi-res Page 2 ($4000). |
HGR3 |
View pseudo Hi-res Page 3 ($6000). |
HGR4 |
View pseudo Hi-res Page 4 ($8000). |
HGR5 |
View pseudo Hi-res Page 5 ($A000). |
HGR6 |
View pseudo Hi-res Page 6 LC Banks 1/2 ($C000-$DFFF). |
HGR7 |
View pseudo Hi-res Page 7 LC Banks 2/RAM ($D000-$EFFF). |
HGR8 |
View pseudo Hi-res Page 8 LC Banks RAM ($D000-$EFFF). |
SHR |
View Super Hi-res. |
TEXT |
View Text screen (current page). |
TEXT1 |
View Text screen Page 1 ($0400). |
TEXT2 |
View Text screen Page 2 ($0800). |
TEXT80 |
View 80-column Text screen (current page). |
TEXT81 |
View 80-column Text screen Page 1. |
TEXT82 |
View 80-column Text screen Page 2. |
If you change to a specific video mode/page different from the current video settings and then exit the debugger (F7) the screen will NOT change to the current video settings. This lets you inspect other video modes/pages until code (re)sets the video mode or page -- handy if reverse engineering games.
While viewing the Apple's output you can use the following keys to switch video pages. Pressing any other key will return to the debugger's output.
Key |
Name |
Effect |
0 |
Zero | View pseudo page 0 |
1 |
One | View page 1 |
2 |
Two | View page 2 |
3 |
Three | View pseudo page 3 |
4 |
Four | View pseudo page 4 |
5 |
Five | View pseudo page 5 |
6 |
Six | View pseudo page 6 |
7 |
Seven | View pseudo page 7 |
8 |
Eight | View pseudo page 8 |
9 |
Nine | View current video mode and page. |