From 603f3fac82ccb77775d53fd77ae7c32167116ad7 Mon Sep 17 00:00:00 2001 From: Ian C Date: Mon, 3 Nov 2008 17:07:32 +0000 Subject: Initial snapshot code (in progress) --- instructions.txt | 40 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 39 insertions(+), 1 deletion(-) (limited to 'instructions.txt') diff --git a/instructions.txt b/instructions.txt index 99c2b23..3b78efa 100644 --- a/instructions.txt +++ b/instructions.txt @@ -70,6 +70,9 @@ Once the A button has been pressed the ZX81 resets and displays itself on the top screen, and a soft keyboard is displayed on the bottom, touch sensitive, DS screen. + + Also at this point, if so configured, a default memory snap will be loaded. + See the "Memory Snapshots" section for more details. If you've never used a ZX81 before then you may wish to find out how the keyboard works -- it uses a keyword entry system, rather than the straight @@ -120,6 +123,16 @@ See the second to last section for more details. + LOAD MEMORY SNAPSHOT + Loads a memory snapshot. This option only works if a FAT-enabled + version of DS81 is being used. See the "Memory Snapshot" section + for more details. + + SAVE MEMORY SNAPSHOT + Saves a memory snapshot. This option only works if a FAT-enabled + version of DS81 is being used. See the "Memory Snapshot" section + for more details. + CANCEL Cancels the menu. @@ -193,7 +206,7 @@ If you know of a game that seems to cause it real trouble, please let me know -- the high-resolution support is still a bit of a hack whereby the - 'emulator searches memory for the display file on detecting that the 'I' + emulator searches memory for the display file on detecting that the 'I' register has changed. @@ -260,6 +273,31 @@ Not that I've found any that work yet :-) + LOAD DEFAULT MEMORY SNAP + + If enabled DS81 will look for a memory snapshot called AUTO.D81 in + either the root directory or the ZX81SNAP directory. + + See the "Memory Snapshot" section for more details on snapshots. + + +9. Memory Snapshots +------------------- + + Since version 1.3 DS81 now supports basic memory snapshots. When you + select the "SAVE MEMORY SNAPSHOT" from the main menu DS81 will prompt + for a filename (only up to 8 alphabetical characters). Once entered + the snapshot will be saved in the directory ZX81SNAP with an automatically + added .D81 extension. If this save fails, an attempt is made to save the + snapshot in the root directory of the device. + + On selecting to load a memory snapshot a file selector is displayed. On + selecting one of the snapshots it will be instantly loaded. + + Note that along with the machine's state the currently configured keypad + mappings are saved in the snapshot and restored when loaded. + + ------------------------------------------------------------------------------- $Id$ -- cgit v1.2.3