Home » Personal collection » Acorn ADFS disks » Electron » Sideways_ROMS.ADF » s\wRAM/Zero
s\wRAM/Zero
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 » Sideways_ROMS.ADF |
Filename: | s\wRAM/Zero |
Read OK: | ✔ |
File size: | 0267 bytes |
Load address: | FFFF1D00 |
Exec address: | FFFF8023 |
Duplicates
There is 1 duplicate copy of this file in the archive:
- Personal collection » Acorn ADFS disks » Electron » Sideways_ROMS.ADF » s\wRAM/Zero
- Personal collection » Acorn hard disk » zipped_disks » elk03 » sideways/s.wRAM/Zero
File contents
10 REM Zero S/W RAM 20 FORpass=0 TO 2 STEP 2:P%=&B00:[OPTpass 30 LDA#0:STA&FCDC:STA&FCDE:LDA&F4:PHA:LDA#15:STA&F4:STA&FE05:LDX#2:SEI:.test TXA:STA&F4:STA&FE05:LDA#0:LDA&8800 40 TAY:INC&8800:CPY&8800:BNEend:DEX:DEX:BPLtest:LDX#&FF:STA&70:JMPend2 50 .end STX&70:DEC&8800 60 TXA:CLC:ADC#&A0:STA&72:LDA#2:STA&73:LDA#0:LDY#0:STA(&72),Y:INC&72:STA(&72),Y 70 LDA#2:STA&71 80 .zero LDA#0:STA&F6:LDA#&80:STA&F7 90 LDA#0:LDY#0:.loop STA(&F6),Y:INY:BNEloop:INC&F7:LDX&F7:CPX#&C0:BNEloop:DEC&71:BEQend2:INC&70:LDA&70:STA&F4:STA&FE05:JMPzero 100 .end2 PLA:STA&F4:STA&FE05:CLI:RTS:]:NEXT:CALL&B00:IF ?&70=&FF THEN PRINT"No sideways RAM!":END
� Zero S/W RAM % �pass=0 � 2 � 2:P%=&B00:[OPTpass q LDA#0:STA&FCDC:STA&FCDE:LDA&F4:PHA:LDA#15:STA&F4:STA&FE05:LDX#2:SEI:.test TXA:STA&F4:STA&FE05:LDA#0:LDA&8800 (H TAY:INC&8800:CPY&8800:BNEend:DEX:DEX:BPLtest:LDX#&FF:STA&70:JMPend2 2 .end STX&70:DEC&8800 <Q TXA:CLC:ADC#&A0:STA&72:LDA#2:STA&73:LDA#0:LDY#0:STA(&72),Y:INC&72:STA(&72),Y F LDA#2:STA&71 P& .zero LDA#0:STA&F6:LDA#&80:STA&F7 Z� LDA#0:LDY#0:.loop STA(&F6),Y:INY:BNEloop:INC&F7:LDX&F7:CPX#&C0:BNEloop:DEC&71:BEQend2:INC&70:LDA&70:STA&F4:STA&FE05:JMPzero dS .end2 PLA:STA&F4:STA&FE05:CLI:RTS:]:�:�&B00:� ?&70=&FF � �"No sideways RAM!":� �
00000000 0d 00 0a 13 20 f4 20 5a 65 72 6f 20 53 2f 57 20 |.... . Zero S/W | 00000010 52 41 4d 0d 00 14 25 20 e3 70 61 73 73 3d 30 20 |RAM...% .pass=0 | 00000020 b8 20 32 20 88 20 32 3a 50 25 3d 26 42 30 30 3a |. 2 . 2:P%=&B00:| 00000030 5b 4f 50 54 70 61 73 73 0d 00 1e 71 20 4c 44 41 |[OPTpass...q LDA| 00000040 23 30 3a 53 54 41 26 46 43 44 43 3a 53 54 41 26 |#0:STA&FCDC:STA&| 00000050 46 43 44 45 3a 4c 44 41 26 46 34 3a 50 48 41 3a |FCDE:LDA&F4:PHA:| 00000060 4c 44 41 23 31 35 3a 53 54 41 26 46 34 3a 53 54 |LDA#15:STA&F4:ST| 00000070 41 26 46 45 30 35 3a 4c 44 58 23 32 3a 53 45 49 |A&FE05:LDX#2:SEI| 00000080 3a 2e 74 65 73 74 20 54 58 41 3a 53 54 41 26 46 |:.test TXA:STA&F| 00000090 34 3a 53 54 41 26 46 45 30 35 3a 4c 44 41 23 30 |4:STA&FE05:LDA#0| 000000a0 3a 4c 44 41 26 38 38 30 30 0d 00 28 48 20 54 41 |:LDA&8800..(H TA| 000000b0 59 3a 49 4e 43 26 38 38 30 30 3a 43 50 59 26 38 |Y:INC&8800:CPY&8| 000000c0 38 30 30 3a 42 4e 45 65 6e 64 3a 44 45 58 3a 44 |800:BNEend:DEX:D| 000000d0 45 58 3a 42 50 4c 74 65 73 74 3a 4c 44 58 23 26 |EX:BPLtest:LDX#&| 000000e0 46 46 3a 53 54 41 26 37 30 3a 4a 4d 50 65 6e 64 |FF:STA&70:JMPend| 000000f0 32 0d 00 32 19 20 2e 65 6e 64 20 53 54 58 26 37 |2..2. .end STX&7| 00000100 30 3a 44 45 43 26 38 38 30 30 0d 00 3c 51 20 54 |0:DEC&8800..<Q T| 00000110 58 41 3a 43 4c 43 3a 41 44 43 23 26 41 30 3a 53 |XA:CLC:ADC#&A0:S| 00000120 54 41 26 37 32 3a 4c 44 41 23 32 3a 53 54 41 26 |TA&72:LDA#2:STA&| 00000130 37 33 3a 4c 44 41 23 30 3a 4c 44 59 23 30 3a 53 |73:LDA#0:LDY#0:S| 00000140 54 41 28 26 37 32 29 2c 59 3a 49 4e 43 26 37 32 |TA(&72),Y:INC&72| 00000150 3a 53 54 41 28 26 37 32 29 2c 59 0d 00 46 11 20 |:STA(&72),Y..F. | 00000160 4c 44 41 23 32 3a 53 54 41 26 37 31 0d 00 50 26 |LDA#2:STA&71..P&| 00000170 20 2e 7a 65 72 6f 20 4c 44 41 23 30 3a 53 54 41 | .zero LDA#0:STA| 00000180 26 46 36 3a 4c 44 41 23 26 38 30 3a 53 54 41 26 |&F6:LDA#&80:STA&| 00000190 46 37 0d 00 5a 80 20 4c 44 41 23 30 3a 4c 44 59 |F7..Z. LDA#0:LDY| 000001a0 23 30 3a 2e 6c 6f 6f 70 20 53 54 41 28 26 46 36 |#0:.loop STA(&F6| 000001b0 29 2c 59 3a 49 4e 59 3a 42 4e 45 6c 6f 6f 70 3a |),Y:INY:BNEloop:| 000001c0 49 4e 43 26 46 37 3a 4c 44 58 26 46 37 3a 43 50 |INC&F7:LDX&F7:CP| 000001d0 58 23 26 43 30 3a 42 4e 45 6c 6f 6f 70 3a 44 45 |X#&C0:BNEloop:DE| 000001e0 43 26 37 31 3a 42 45 51 65 6e 64 32 3a 49 4e 43 |C&71:BEQend2:INC| 000001f0 26 37 30 3a 4c 44 41 26 37 30 3a 53 54 41 26 46 |&70:LDA&70:STA&F| 00000200 34 3a 53 54 41 26 46 45 30 35 3a 4a 4d 50 7a 65 |4:STA&FE05:JMPze| 00000210 72 6f 0d 00 64 53 20 2e 65 6e 64 32 20 50 4c 41 |ro..dS .end2 PLA| 00000220 3a 53 54 41 26 46 34 3a 53 54 41 26 46 45 30 35 |:STA&F4:STA&FE05| 00000230 3a 43 4c 49 3a 52 54 53 3a 5d 3a ed 3a d6 26 42 |:CLI:RTS:]:.:.&B| 00000240 30 30 3a e7 20 3f 26 37 30 3d 26 46 46 20 8c 20 |00:. ?&70=&FF . | 00000250 f1 22 4e 6f 20 73 69 64 65 77 61 79 73 20 52 41 |."No sideways RA| 00000260 4d 21 22 3a e0 0d ff |M!":...| 00000267