Home » Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_29.ADF » P/16C1GEN

P/16C1GEN

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

Tape/disk: Home » Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_29.ADF
Filename: P/16C1GEN
Read OK:
File size: 04EE bytes
Load address: FFFF0E00
Exec address: FFFF802B
Duplicates

There are 2 duplicate copies of this file in the archive:

File contents
   10REM Assembler code for 16 colour mode 1
   20REM For machines with shadow RAM
   30REM Turn off screen refresh event trap
   40*FX13,4
   50REM Type *FX14,4 to activate
   60REM DO NOT Hardware Scroll!
   70PROCcode
   80OSCLI("SAVE 16C1SRC 900 "+STR$~P%)
   90END
  100DEFPROCcode
  110code=&900
  120pal_reg=&FE21
  130osbyte=&FFF4
  140eventv=&220
  150byte=&70:byte2=&71
  160FORpass%=0TO2STEP2:P%=code
  170[OPTpass%
  180.init
  190PHP:PHA:TXA:PHA:TYA:PHA
  200LDA#0
  210STAbyte
  220LDA#1
  230STAbyte2
  240SEI
  250LDAeventv
  260STAoldeventv
  270LDA#entry MOD256
  280STAeventv
  290LDAeventv+1
  300STAoldeventv+1
  310LDA#entry DIV256
  320STAeventv+1
  330CLI
  340PLA:TAY:PLA:TAX:PLA:PLP
  350RTS
  360:
  370.entry
  380PHP:PHA:TXA:PHA:TYA:PHA
  390LDAbyte
  400EOR#16
  410STAbyte
  420TAX
  430LDY#16
  440:
  450.loop
  460LDAcols1,X
  470STApal_reg
  480INX
  490DEY
  500BNEloop
  510LDAbyte2
  520EOR#1
  530STAbyte2
  540TAX
  550LDA#113
  560JSRosbyte
  570PLA:TAY:PLA:TAX:PLA:PLP
  580JMP(oldeventv)
  590:
  600.cols1
  610EQUB&07:EQUB&17:EQUB&47:EQUB&57
  620EQUB&26:EQUB&36:EQUB&66:EQUB&76
  630EQUB&85:EQUB&95:EQUB&C5:EQUB&D5
  640EQUB&A0:EQUB&B0:EQUB&E0:EQUB&F0
  650:
  660.cols2
  670EQUB&07:EQUB&17:EQUB&47:EQUB&57
  680EQUB&21:EQUB&31:EQUB&61:EQUB&71
  690EQUB&82:EQUB&92:EQUB&C2:EQUB&D2
  700EQUB&A3:EQUB&B3:EQUB&E3:EQUB&F3
  710:
  720.mem
  730EQUB&F6:EQUB&F5
  740.oldeventv
  750EQUW0
  760]:NEXT
  770CALLinit
  780ENDPROC

)� Assembler code for 16 colour mode 1
"� For machines with shadow RAM
(� Turn off screen refresh event trap
(*FX13,4
2� Type *FX14,4 to activate
<� DO NOT Hardware Scroll!
F	�code
P�("SAVE 16C1SRC 900 "+�~P%)
Z�
d
��code
n
code=&900
xpal_reg=&FE21
�osbyte=&FFF4
�eventv=&220
�byte=&70:byte2=&71
��pass%=0�2�2:P%=code
�
[OPTpass%
�	.init
�PHP:PHA:TXA:PHA:TYA:PHA
�	LDA#0
�STAbyte
�	LDA#1
�STAbyte2
�SEI
�
LDAeventv
STAoldeventv
LDA#entry �256

STAeventv
"LDAeventv+1
,STAoldeventv+1
6LDA#entry �256
@STAeventv+1
JCLI
TPLA:TAY:PLA:TAX:PLA:PLP
^RTS
h:
r
.entry
|PHP:PHA:TXA:PHA:TYA:PHA
�LDAbyte
��#16
�STAbyte
�TAX
�
LDY#16
�:
�	.loop
�LDAcols1,X
�STApal_reg
�INX
�DEY
�BNEloop
�LDAbyte2
�#1
STAbyte2
TAX
&LDA#113
0
JSRosbyte
:PLA:TAY:PLA:TAX:PLA:PLP
DJMP(oldeventv)
N:
X
.cols1
b#EQUB&07:EQUB&17:EQUB&47:EQUB&57
l#EQUB&26:EQUB&36:EQUB&66:EQUB&76
v#EQUB&85:EQUB&95:EQUB&C5:EQUB&D5
�#EQUB&A0:EQUB&B0:EQUB&E0:EQUB&F0
�:
�
.cols2
�#EQUB&07:EQUB&17:EQUB&47:EQUB&57
�#EQUB&21:EQUB&31:EQUB&61:EQUB&71
�#EQUB&82:EQUB&92:EQUB&C2:EQUB&D2
�#EQUB&A3:EQUB&B3:EQUB&E3:EQUB&F3
�:
�.mem
�EQUB&F6:EQUB&F5
�.oldeventv
�	EQUW0
�]:�
	�init
�
�
00000000  0d 00 0a 29 f4 20 41 73  73 65 6d 62 6c 65 72 20  |...). Assembler |
00000010  63 6f 64 65 20 66 6f 72  20 31 36 20 63 6f 6c 6f  |code for 16 colo|
00000020  75 72 20 6d 6f 64 65 20  31 0d 00 14 22 f4 20 46  |ur mode 1...". F|
00000030  6f 72 20 6d 61 63 68 69  6e 65 73 20 77 69 74 68  |or machines with|
00000040  20 73 68 61 64 6f 77 20  52 41 4d 0d 00 1e 28 f4  | shadow RAM...(.|
00000050  20 54 75 72 6e 20 6f 66  66 20 73 63 72 65 65 6e  | Turn off screen|
00000060  20 72 65 66 72 65 73 68  20 65 76 65 6e 74 20 74  | refresh event t|
00000070  72 61 70 0d 00 28 0b 2a  46 58 31 33 2c 34 0d 00  |rap..(.*FX13,4..|
00000080  32 1e f4 20 54 79 70 65  20 2a 46 58 31 34 2c 34  |2.. Type *FX14,4|
00000090  20 74 6f 20 61 63 74 69  76 61 74 65 0d 00 3c 1d  | to activate..<.|
000000a0  f4 20 44 4f 20 4e 4f 54  20 48 61 72 64 77 61 72  |. DO NOT Hardwar|
000000b0  65 20 53 63 72 6f 6c 6c  21 0d 00 46 09 f2 63 6f  |e Scroll!..F..co|
000000c0  64 65 0d 00 50 1f ff 28  22 53 41 56 45 20 31 36  |de..P..("SAVE 16|
000000d0  43 31 53 52 43 20 39 30  30 20 22 2b c3 7e 50 25  |C1SRC 900 "+.~P%|
000000e0  29 0d 00 5a 05 e0 0d 00  64 0a dd f2 63 6f 64 65  |)..Z....d...code|
000000f0  0d 00 6e 0d 63 6f 64 65  3d 26 39 30 30 0d 00 78  |..n.code=&900..x|
00000100  11 70 61 6c 5f 72 65 67  3d 26 46 45 32 31 0d 00  |.pal_reg=&FE21..|
00000110  82 10 6f 73 62 79 74 65  3d 26 46 46 46 34 0d 00  |..osbyte=&FFF4..|
00000120  8c 0f 65 76 65 6e 74 76  3d 26 32 32 30 0d 00 96  |..eventv=&220...|
00000130  16 62 79 74 65 3d 26 37  30 3a 62 79 74 65 32 3d  |.byte=&70:byte2=|
00000140  26 37 31 0d 00 a0 18 e3  70 61 73 73 25 3d 30 b8  |&71.....pass%=0.|
00000150  32 88 32 3a 50 25 3d 63  6f 64 65 0d 00 aa 0d 5b  |2.2:P%=code....[|
00000160  4f 50 54 70 61 73 73 25  0d 00 b4 09 2e 69 6e 69  |OPTpass%.....ini|
00000170  74 0d 00 be 1b 50 48 50  3a 50 48 41 3a 54 58 41  |t....PHP:PHA:TXA|
00000180  3a 50 48 41 3a 54 59 41  3a 50 48 41 0d 00 c8 09  |:PHA:TYA:PHA....|
00000190  4c 44 41 23 30 0d 00 d2  0b 53 54 41 62 79 74 65  |LDA#0....STAbyte|
000001a0  0d 00 dc 09 4c 44 41 23  31 0d 00 e6 0c 53 54 41  |....LDA#1....STA|
000001b0  62 79 74 65 32 0d 00 f0  07 53 45 49 0d 00 fa 0d  |byte2....SEI....|
000001c0  4c 44 41 65 76 65 6e 74  76 0d 01 04 10 53 54 41  |LDAeventv....STA|
000001d0  6f 6c 64 65 76 65 6e 74  76 0d 01 0e 12 4c 44 41  |oldeventv....LDA|
000001e0  23 65 6e 74 72 79 20 83  32 35 36 0d 01 18 0d 53  |#entry .256....S|
000001f0  54 41 65 76 65 6e 74 76  0d 01 22 0f 4c 44 41 65  |TAeventv..".LDAe|
00000200  76 65 6e 74 76 2b 31 0d  01 2c 12 53 54 41 6f 6c  |ventv+1..,.STAol|
00000210  64 65 76 65 6e 74 76 2b  31 0d 01 36 12 4c 44 41  |deventv+1..6.LDA|
00000220  23 65 6e 74 72 79 20 81  32 35 36 0d 01 40 0f 53  |#entry .256..@.S|
00000230  54 41 65 76 65 6e 74 76  2b 31 0d 01 4a 07 43 4c  |TAeventv+1..J.CL|
00000240  49 0d 01 54 1b 50 4c 41  3a 54 41 59 3a 50 4c 41  |I..T.PLA:TAY:PLA|
00000250  3a 54 41 58 3a 50 4c 41  3a 50 4c 50 0d 01 5e 07  |:TAX:PLA:PLP..^.|
00000260  52 54 53 0d 01 68 05 3a  0d 01 72 0a 2e 65 6e 74  |RTS..h.:..r..ent|
00000270  72 79 0d 01 7c 1b 50 48  50 3a 50 48 41 3a 54 58  |ry..|.PHP:PHA:TX|
00000280  41 3a 50 48 41 3a 54 59  41 3a 50 48 41 0d 01 86  |A:PHA:TYA:PHA...|
00000290  0b 4c 44 41 62 79 74 65  0d 01 90 08 82 23 31 36  |.LDAbyte.....#16|
000002a0  0d 01 9a 0b 53 54 41 62  79 74 65 0d 01 a4 07 54  |....STAbyte....T|
000002b0  41 58 0d 01 ae 0a 4c 44  59 23 31 36 0d 01 b8 05  |AX....LDY#16....|
000002c0  3a 0d 01 c2 09 2e 6c 6f  6f 70 0d 01 cc 0e 4c 44  |:.....loop....LD|
000002d0  41 63 6f 6c 73 31 2c 58  0d 01 d6 0e 53 54 41 70  |Acols1,X....STAp|
000002e0  61 6c 5f 72 65 67 0d 01  e0 07 49 4e 58 0d 01 ea  |al_reg....INX...|
000002f0  07 44 45 59 0d 01 f4 0b  42 4e 45 6c 6f 6f 70 0d  |.DEY....BNEloop.|
00000300  01 fe 0c 4c 44 41 62 79  74 65 32 0d 02 08 07 82  |...LDAbyte2.....|
00000310  23 31 0d 02 12 0c 53 54  41 62 79 74 65 32 0d 02  |#1....STAbyte2..|
00000320  1c 07 54 41 58 0d 02 26  0b 4c 44 41 23 31 31 33  |..TAX..&.LDA#113|
00000330  0d 02 30 0d 4a 53 52 6f  73 62 79 74 65 0d 02 3a  |..0.JSRosbyte..:|
00000340  1b 50 4c 41 3a 54 41 59  3a 50 4c 41 3a 54 41 58  |.PLA:TAY:PLA:TAX|
00000350  3a 50 4c 41 3a 50 4c 50  0d 02 44 12 4a 4d 50 28  |:PLA:PLP..D.JMP(|
00000360  6f 6c 64 65 76 65 6e 74  76 29 0d 02 4e 05 3a 0d  |oldeventv)..N.:.|
00000370  02 58 0a 2e 63 6f 6c 73  31 0d 02 62 23 45 51 55  |.X..cols1..b#EQU|
00000380  42 26 30 37 3a 45 51 55  42 26 31 37 3a 45 51 55  |B&07:EQUB&17:EQU|
00000390  42 26 34 37 3a 45 51 55  42 26 35 37 0d 02 6c 23  |B&47:EQUB&57..l#|
000003a0  45 51 55 42 26 32 36 3a  45 51 55 42 26 33 36 3a  |EQUB&26:EQUB&36:|
000003b0  45 51 55 42 26 36 36 3a  45 51 55 42 26 37 36 0d  |EQUB&66:EQUB&76.|
000003c0  02 76 23 45 51 55 42 26  38 35 3a 45 51 55 42 26  |.v#EQUB&85:EQUB&|
000003d0  39 35 3a 45 51 55 42 26  43 35 3a 45 51 55 42 26  |95:EQUB&C5:EQUB&|
000003e0  44 35 0d 02 80 23 45 51  55 42 26 41 30 3a 45 51  |D5...#EQUB&A0:EQ|
000003f0  55 42 26 42 30 3a 45 51  55 42 26 45 30 3a 45 51  |UB&B0:EQUB&E0:EQ|
00000400  55 42 26 46 30 0d 02 8a  05 3a 0d 02 94 0a 2e 63  |UB&F0....:.....c|
00000410  6f 6c 73 32 0d 02 9e 23  45 51 55 42 26 30 37 3a  |ols2...#EQUB&07:|
00000420  45 51 55 42 26 31 37 3a  45 51 55 42 26 34 37 3a  |EQUB&17:EQUB&47:|
00000430  45 51 55 42 26 35 37 0d  02 a8 23 45 51 55 42 26  |EQUB&57...#EQUB&|
00000440  32 31 3a 45 51 55 42 26  33 31 3a 45 51 55 42 26  |21:EQUB&31:EQUB&|
00000450  36 31 3a 45 51 55 42 26  37 31 0d 02 b2 23 45 51  |61:EQUB&71...#EQ|
00000460  55 42 26 38 32 3a 45 51  55 42 26 39 32 3a 45 51  |UB&82:EQUB&92:EQ|
00000470  55 42 26 43 32 3a 45 51  55 42 26 44 32 0d 02 bc  |UB&C2:EQUB&D2...|
00000480  23 45 51 55 42 26 41 33  3a 45 51 55 42 26 42 33  |#EQUB&A3:EQUB&B3|
00000490  3a 45 51 55 42 26 45 33  3a 45 51 55 42 26 46 33  |:EQUB&E3:EQUB&F3|
000004a0  0d 02 c6 05 3a 0d 02 d0  08 2e 6d 65 6d 0d 02 da  |....:.....mem...|
000004b0  13 45 51 55 42 26 46 36  3a 45 51 55 42 26 46 35  |.EQUB&F6:EQUB&F5|
000004c0  0d 02 e4 0e 2e 6f 6c 64  65 76 65 6e 74 76 0d 02  |.....oldeventv..|
000004d0  ee 09 45 51 55 57 30 0d  02 f8 07 5d 3a ed 0d 03  |..EQUW0....]:...|
000004e0  02 09 d6 69 6e 69 74 0d  03 0c 05 e1 0d ff        |...init.......|
000004ee
P/16C1GEN.m0
P/16C1GEN.m1
P/16C1GEN.m2
P/16C1GEN.m4
P/16C1GEN.m5