Commodore Plus 4 - Page 447

Appendix G 439
Memory Location(S)
Hexadecimal
Decimal
Usage
$053B
$053C
S053D
$053E
$053F
$0540
$0541-50542
$0543
$0544
$0545-$0546
$0547
$0548
$0549-$054A
$054B-$0551
$0552-$0558
$0559-$055C
$055D
$055E
$055F-$0566
$0567-$05E6
$05E7
$05E8
$05E9
$05EA
$05EB
$05EC-$05EF
$05F0-$05Fl
$05F2
$05F3
$05F4
1339
1340
1341
1342
1343
1344
1345-1346
1347
1348
1349-1350
1351
1352
1353-1354
1355-1361
1362-1368
1369-1372
1373
1374
1375-1382
1383-1510
1511
1512
1513
1514
1515
1516-1519
1520-1521
1522
1523
1524
Current character color/luminance
Current character flash flag ($00=no,
$80=yes)
Free
Screen memory start (high byte)
Length of keyboard queue
Flag for key repeat ($80=all keys repeat,
$40=no keys repeat,
$00=space,INST/DEL, and cursor
keys repeat)
Counters for key repeats
Flag for shift key
Pattern of last shift
Vector for keyboard table
Commodore SHIFT enable ($00=enabled,
$80=disabled)
Flag for scrolling (not used)
Temporary storage during screen output
Storage for monitor
Register storage for monitor
(PC,SR,A,X,Y,SP)
Storage for monitor
Number of characters left to get from
function key definition
Pointer to current character in function
key definition
Table of lengths of function key definitions
Function key definitions
Temporary storage for data write (DMA)
Read or write (DMA)
Device number (DMA)
Presence flag (DMA)
Temporary storage for open type (DMA)
Table of physical addresses for cartridge
ROMs
Long jump for banking routines
.A for long jump
.X for long jump
.Yfor long jump