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DATA (256 * 8), FOLLOWED BY A 256 BYTE |
COLORFILE. THIS EDITOR WILL SAVE FROM |
$800 (2048) TO $10FF (4351). IT WILL |
LOAD A SET FROM ANY SOURCE AT $800, |
REGARDLESS OF THE START ADDRESS IN THE |
FILE HEADER. A COLORFILE WILL BE |
CREATED BY THE ACT OF SELECTING COLORS |
(CTRL N). LOADING A FILE LONGER THAN |
$900 (2304) BYTES LONG WILL WRITE OVER |
PART OF THE EDITOR, WITH UNPREDICTABLE |
RESULTS. FILES SAVED FROM THIS EDITOR |
WILL HAVE A START ADDRESS OF $800 IN |
THE HEADER. THE EDITOR USES PRG FORMAT |
FILES ONLY. |
COLORFILE: THE LAST 256 BYTES OF A |
CHARACTERSET, STARTING AT $1000, |
CONTAINING THE COLOR INFORMATION FOR |
EACH CHARACTER IN THE SET. BITS 0-2 |
CONTAIN THE FOREGROUND COLOR, BIT 3 |
DETERMINES MULTI-COLOR MODE (1 = ON), |
AND BITS 4-7 ARE NOT USED, EXCEPT IN |
THE FIRST 3 BYTES OF THE FILE. THESE |
THREE BYTES USE BITS 4-7 TO STORE, IN |
ORDER, THE BACKGROUND COLOR, MULTICOLOR |
2, AND MULTICOLOR3. |
EDIT MODE: THE NORMAL OPERATING MODE |
OF THIS PROGRAM. AT THE TOP LEFT OF THE |
SCREEN WILL BE THE EDIT DISPLAY, A 16 |
BY 16 CHARACTER DISPLAY OF THE CURRENT |
BLOCK. AT THE CENTER RIGHT OF THE SCREEN |
THE ACTUAL BLOCK WILL BE DISPLAYED. ON |
THE EDIT DISPLAY WILL BE A SMALL BOX |
WITH WHITE TOP AND BOTTOM, AND BLACK |
SIDES. THIS IS THE CURSOR, WHICH COVERS |
ONE PIXEL AT A TIME. |
HI-RES MODE: CHARACTER DATA IS |
DISPLAYED ONE BIT AT A TIME, WITH 1 BITS |
BEING FOREGROUND COLOR, AND 0 BITS |
BACKGROUND COLOR. |
MULTI-COLOR MODE: CHARACTER DATA IS |
DISPLAYED TWO BITS AT A TIME, WITH 00 |
BIT PAIRS BACKGROUND COLOR, 01 BIT PAIRS |
MULTICOLOR2, 10 BIT PAIRS MULTICOLOR3, |
AND 11 BIT PAIRS FOREGROUND COLOR. |
HORIZONTAL RESOLUTION IS SACRIFICED FOR |
MORE COLORS, SINCE THE MULTICOLOR PIXELS |
ARE TWICE AS WIDE AS HI-RES ONES. |
3 USING THE EDITOR |
TO START UP: LOAD"BLOCK EDIT.O",8 THEN |
RUN. YOUR C64 MUST BE IN A NORMAL CON- |
FIGURATION AS FAR AS THE START OF BASIC |
GOES. IF YOU ARE IN ANY DOUBT, RESET THE |
MACHINE (RESET BUTTON, OR POWER OFF, OR |
SYS 64738) BEFORE LOADING. |
TO SKIP TITLE: LOAD PROGRAM, THEN SYS |
4352 |
AFTER THE TITLE, YOU WILL SEE A |
COMMAND SUMMARY. IN GENERAL, SINGLE |
KEYSTROKES DO EASILY REVERSIBLE THINGS, |
SUCH AS EDITING PIXELS, OR SELECTING THE |
BLOCK TO BE EDITED. CONTROL KEYS (CTRL |
PRESSED SIMULTANEOUSLY WITH ANOTHER KEY) |
WILL DO THINGS YOU'LL WANT TO BE MORE |
CAREFUL WITH, SUCH AS ERASING ENTIRE |
BLOCKS, OR LOADING A NEW CHARACTERSET |
OVER THE CURRENT ONE. |
THE NEXT THING YOU WILL SEE IS THE |
LOAD ROUTINE PROMPT. IF YOU ARE STARTING |
A NEW SET, DOWNLOAD THE ROM CHARACTERS |
FIRST. SEE THE FINAL SECTION FOR WHY. |
OTHERWISE, LOAD THE SET YOU WANT TO WORK |
ON FROM DISK. IF YOU WANT TO SEE THE |
TITLE ROUTINE AND CHARACTERS, SELECT |
EITHER ROM OR DISK AND THEN RETURN TO |
THE EDITOR. YOU WILL THEN HAVE TO USE |
CTRL N TO SET A COLOR, SINCE EVERYTHING |
IS INITIALIZED TO BLACK. AFTER THAT, A |
D COMMAND WILL DISPLAY THE CURRENT SET |
IN SOMETHING OTHER THAN BLACK ON BLACK. |
THE BEST WAY TO LEARN THE EDIT MODE IS |
TO MESS AROUND WITH IT. ? WILL GIVE YOU |
BACK THE COMMAND SUMMARY WHEN IN EDIT, |
AND ALL OF THE NON EDIT MODES GIVE |
PROMPTS AND CAN BE BACKED OUT OF WITHOUT |
CHANGING ANYTHING. |
COMMANDS: EDIT MODE |
CURSOR KEYS: THESE WILL MOVE THE |
CURSOR AROUND THE EDIT DISPLAY AT THE |
LEFT OF THE SCREEN. NOTE THAT THE CURSOR |
WILL GO OFF THE BOTTOM OR RIGHT OF THE |
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