Home » CEEFAX disks » telesoftware3.adl » 27_11_87/OSBYTE
27_11_87/OSBYTE
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 » CEEFAX disks » telesoftware3.adl |
Filename: | 27_11_87/OSBYTE |
Read OK: | ✔ |
File size: | 075C bytes |
Load address: | FFFF1900 |
Exec address: | FFFF8023 |
Duplicates
There is 1 duplicate copy of this file in the archive:
- CEEFAX disks » telesoftware3.adl » 27_11_87/OSBYTE
- CEEFAX disks » telesoftware8.adl » 13-08-88/OSBYTE
File contents
10REM: OSBYTE 20MODE7 30HIMEM=&3C00 40DIM save 50 50diff=&8000-HIMEM 60accumulator=&EF 70xregister=&F0 80yregister=&F1 90rompoint=&F6 100table=&2A1 110osrdrm=&FFB9 120osasci=&FFE3 130osnewl=&FFE7 140osbyte=&FFF4 150oscli=&FFF7 160FOR pass = 0 TO 2 STEP 2 170P%=HIMEM 180[OPT pass 190BRK 200BRK 210BRK 220JMP service+diff 230OPT FNequb(&82) 240OPT FNequb((copyright+diff) MOD 256) 250BRK 260OPT FNequs("OSBYTE") 270.copyright 280BRK 290OPT FNequs("(C) Gordon Horsington 1987") 300BRK 310.service 320PHA 330CMP #7 340BEQ newosbyte 350.exit 360PLA 370RTS 380.newosbyte 390LDA accumulator 400CMP #100 410BNE exit 420LDX xregister 430CPX #&10 440BCS checkyreg 450LDA #0 460STA table,X 470.checkyreg 480LDY yregister 490BEQ out 500.romlist 510JSR romnames+diff 520.out 530LDX xregister 540LDY yregister 550PLA 560LDA #0 570RTS 580.romnames 590JSR osnewl 600LDA #&F 610PHA 620.romloop 630TAY 640LDA table,Y 650BEQ nothere 660TYA 670JSR decimal+diff 680LDA #ASC(" ") 690JSR osasci 700LDA #&8 710STA rompoint 720LDA #&80 730STA rompoint+1 740.readloop 750INC rompoint 760BEQ newline 770PLA 780PHA 790TAY 800JSR osrdrm 810CMP #ASC(" ") 820BCC newline 830JSR osasci 840JMP readloop+diff 850.newline 860JSR osnewl 870.nothere 880PLA 890SEC 900SBC #1 910PHA 920BPL romloop 930PLA 940JMP osnewl 950.decimal 960SED 970CLC 980ADC #0 990CLD 1000PHA 1010LSR A 1020LSR A 1030LSR A 1040LSR A 1050JSR nibble+diff 1060PLA 1070AND #&F 1080.nibble 1090CLC 1100ADC #ASC("0") 1110JMP osasci 1120.lastbyte 1130] 1140NEXT 1150INPUT'"Save filename = "filename$ 1160IF filename$="" END 1170$save="SAVE "+filename$+" "+STR$~(HIMEM)+" "+STR$~(lastbyte)+" FFFF8000 FFFF8000" 1180X%=save MOD 256 1190Y%=save DIV 256 1200*OPT1,2 1210CALL oscli 1220*OPT1,0 1230END 1240DEFFNequb(byte) 1250?P%=byte 1260P%=P%+1 1270=pass 1280DEFFNequw(word) 1290?P%=word MOD 256 1300P%?1=word DIV 256 1310P%=P%+2 1320=pass 1330DEFFNequd(double) 1340!P%=double 1350P%=P%+4 1360=pass 1370DEFFNequs(string$) 1380$P%=string$ 1390P%=P%+LEN(string$) 1400=pass
�: OSBYTE �7 �=&3C00 ( � save 50 2diff=&8000-� <accumulator=&EF Fxregister=&F0 Pyregister=&F1 Zrompoint=&F6 dtable=&2A1 nosrdrm=&FFB9 xosasci=&FFE3 �osnewl=&FFE7 �osbyte=&FFF4 �oscli=&FFF7 �� pass = 0 � 2 � 2 �P%=� � [OPT pass �BRK �BRK �BRK �JMP service+diff �OPT �equb(&82) �%OPT �equb((copyright+diff) � 256) �BRK OPT �equs("OSBYTE") .copyright BRK "+OPT �equs("(C) Gordon Horsington 1987") ,BRK 6.service @PHA J CMP #7 TBEQ newosbyte ^ .exit hPLA rRTS |.newosbyte �LDA accumulator �CMP #100 �BNE exit �LDX xregister �CPX #&10 �BCS checkyreg � LDA #0 �STA table,X �.checkyreg �LDY yregister �BEQ out �.romlist �JSR romnames+diff .out LDX xregister LDY yregister &PLA 0 LDA #0 :RTS D .romnames NJSR osnewl XLDA #&F bPHA l.romloop vTAY �LDA table,Y �BEQ nothere �TYA �JSR decimal+diff �LDA #�(" ") �JSR osasci �LDA #&8 �STA rompoint �LDA #&80 �STA rompoint+1 � .readloop �INC rompoint �BEQ newline PLA PHA TAY JSR osrdrm *CMP #�(" ") 4BCC newline >JSR osasci HJMP readloop+diff R.newline \JSR osnewl f.nothere pPLA zSEC � SBC #1 �PHA �BPL romloop �PLA �JMP osnewl �.decimal �SED �CLC � ADC #0 �CLD �PHA � LSR A � LSR A LSR A LSR A JSR nibble+diff $PLA . � #&F 8.nibble BCLC LADC #�("0") VJMP osasci ` .lastbyte j] t� ~!�'"Save filename = "filename$ �� filename$="" � �K$save="SAVE "+filename$+" "+�~(�)+" "+�~(lastbyte)+" FFFF8000 FFFF8000" �X%=save � 256 �Y%=save � 256 �*OPT1,2 �� oscli �*OPT1,0 �� �ݤequb(byte) �?P%=byte �P%=P%+1 � =pass ݤequw(word) ?P%=word � 256 P%?1=word � 256 P%=P%+2 ( =pass 2ݤequd(double) <!P%=double FP%=P%+4 P =pass Zݤequs(string$) d$P%=string$ nP%=P%+�(string$) x =pass �
00000000 0d 00 0a 0d f4 3a 20 4f 53 42 59 54 45 0d 00 14 |.....: OSBYTE...| 00000010 06 eb 37 0d 00 1e 0b d3 3d 26 33 43 30 30 0d 00 |..7.....=&3C00..| 00000020 28 0d de 20 73 61 76 65 20 35 30 0d 00 32 10 64 |(.. save 50..2.d| 00000030 69 66 66 3d 26 38 30 30 30 2d 93 0d 00 3c 13 61 |iff=&8000-...<.a| 00000040 63 63 75 6d 75 6c 61 74 6f 72 3d 26 45 46 0d 00 |ccumulator=&EF..| 00000050 46 11 78 72 65 67 69 73 74 65 72 3d 26 46 30 0d |F.xregister=&F0.| 00000060 00 50 11 79 72 65 67 69 73 74 65 72 3d 26 46 31 |.P.yregister=&F1| 00000070 0d 00 5a 10 72 6f 6d 70 6f 69 6e 74 3d 26 46 36 |..Z.rompoint=&F6| 00000080 0d 00 64 0e 74 61 62 6c 65 3d 26 32 41 31 0d 00 |..d.table=&2A1..| 00000090 6e 10 6f 73 72 64 72 6d 3d 26 46 46 42 39 0d 00 |n.osrdrm=&FFB9..| 000000a0 78 10 6f 73 61 73 63 69 3d 26 46 46 45 33 0d 00 |x.osasci=&FFE3..| 000000b0 82 10 6f 73 6e 65 77 6c 3d 26 46 46 45 37 0d 00 |..osnewl=&FFE7..| 000000c0 8c 10 6f 73 62 79 74 65 3d 26 46 46 46 34 0d 00 |..osbyte=&FFF4..| 000000d0 96 0f 6f 73 63 6c 69 3d 26 46 46 46 37 0d 00 a0 |..oscli=&FFF7...| 000000e0 16 e3 20 70 61 73 73 20 3d 20 30 20 b8 20 32 20 |.. pass = 0 . 2 | 000000f0 88 20 32 0d 00 aa 08 50 25 3d 93 0d 00 b4 0d 5b |. 2....P%=.....[| 00000100 4f 50 54 20 70 61 73 73 0d 00 be 07 42 52 4b 0d |OPT pass....BRK.| 00000110 00 c8 07 42 52 4b 0d 00 d2 07 42 52 4b 0d 00 dc |...BRK....BRK...| 00000120 14 4a 4d 50 20 73 65 72 76 69 63 65 2b 64 69 66 |.JMP service+dif| 00000130 66 0d 00 e6 12 4f 50 54 20 a4 65 71 75 62 28 26 |f....OPT .equb(&| 00000140 38 32 29 0d 00 f0 25 4f 50 54 20 a4 65 71 75 62 |82)...%OPT .equb| 00000150 28 28 63 6f 70 79 72 69 67 68 74 2b 64 69 66 66 |((copyright+diff| 00000160 29 20 83 20 32 35 36 29 0d 00 fa 07 42 52 4b 0d |) . 256)....BRK.| 00000170 01 04 17 4f 50 54 20 a4 65 71 75 73 28 22 4f 53 |...OPT .equs("OS| 00000180 42 59 54 45 22 29 0d 01 0e 0e 2e 63 6f 70 79 72 |BYTE").....copyr| 00000190 69 67 68 74 0d 01 18 07 42 52 4b 0d 01 22 2b 4f |ight....BRK.."+O| 000001a0 50 54 20 a4 65 71 75 73 28 22 28 43 29 20 47 6f |PT .equs("(C) Go| 000001b0 72 64 6f 6e 20 48 6f 72 73 69 6e 67 74 6f 6e 20 |rdon Horsington | 000001c0 31 39 38 37 22 29 0d 01 2c 07 42 52 4b 0d 01 36 |1987")..,.BRK..6| 000001d0 0c 2e 73 65 72 76 69 63 65 0d 01 40 07 50 48 41 |..service..@.PHA| 000001e0 0d 01 4a 0a 43 4d 50 20 23 37 0d 01 54 11 42 45 |..J.CMP #7..T.BE| 000001f0 51 20 6e 65 77 6f 73 62 79 74 65 0d 01 5e 09 2e |Q newosbyte..^..| 00000200 65 78 69 74 0d 01 68 07 50 4c 41 0d 01 72 07 52 |exit..h.PLA..r.R| 00000210 54 53 0d 01 7c 0e 2e 6e 65 77 6f 73 62 79 74 65 |TS..|..newosbyte| 00000220 0d 01 86 13 4c 44 41 20 61 63 63 75 6d 75 6c 61 |....LDA accumula| 00000230 74 6f 72 0d 01 90 0c 43 4d 50 20 23 31 30 30 0d |tor....CMP #100.| 00000240 01 9a 0c 42 4e 45 20 65 78 69 74 0d 01 a4 11 4c |...BNE exit....L| 00000250 44 58 20 78 72 65 67 69 73 74 65 72 0d 01 ae 0c |DX xregister....| 00000260 43 50 58 20 23 26 31 30 0d 01 b8 11 42 43 53 20 |CPX #&10....BCS | 00000270 63 68 65 63 6b 79 72 65 67 0d 01 c2 0a 4c 44 41 |checkyreg....LDA| 00000280 20 23 30 0d 01 cc 0f 53 54 41 20 74 61 62 6c 65 | #0....STA table| 00000290 2c 58 0d 01 d6 0e 2e 63 68 65 63 6b 79 72 65 67 |,X.....checkyreg| 000002a0 0d 01 e0 11 4c 44 59 20 79 72 65 67 69 73 74 65 |....LDY yregiste| 000002b0 72 0d 01 ea 0b 42 45 51 20 6f 75 74 0d 01 f4 0c |r....BEQ out....| 000002c0 2e 72 6f 6d 6c 69 73 74 0d 01 fe 15 4a 53 52 20 |.romlist....JSR | 000002d0 72 6f 6d 6e 61 6d 65 73 2b 64 69 66 66 0d 02 08 |romnames+diff...| 000002e0 08 2e 6f 75 74 0d 02 12 11 4c 44 58 20 78 72 65 |..out....LDX xre| 000002f0 67 69 73 74 65 72 0d 02 1c 11 4c 44 59 20 79 72 |gister....LDY yr| 00000300 65 67 69 73 74 65 72 0d 02 26 07 50 4c 41 0d 02 |egister..&.PLA..| 00000310 30 0a 4c 44 41 20 23 30 0d 02 3a 07 52 54 53 0d |0.LDA #0..:.RTS.| 00000320 02 44 0d 2e 72 6f 6d 6e 61 6d 65 73 0d 02 4e 0e |.D..romnames..N.| 00000330 4a 53 52 20 6f 73 6e 65 77 6c 0d 02 58 0b 4c 44 |JSR osnewl..X.LD| 00000340 41 20 23 26 46 0d 02 62 07 50 48 41 0d 02 6c 0c |A #&F..b.PHA..l.| 00000350 2e 72 6f 6d 6c 6f 6f 70 0d 02 76 07 54 41 59 0d |.romloop..v.TAY.| 00000360 02 80 0f 4c 44 41 20 74 61 62 6c 65 2c 59 0d 02 |...LDA table,Y..| 00000370 8a 0f 42 45 51 20 6e 6f 74 68 65 72 65 0d 02 94 |..BEQ nothere...| 00000380 07 54 59 41 0d 02 9e 14 4a 53 52 20 64 65 63 69 |.TYA....JSR deci| 00000390 6d 61 6c 2b 64 69 66 66 0d 02 a8 0f 4c 44 41 20 |mal+diff....LDA | 000003a0 23 97 28 22 20 22 29 0d 02 b2 0e 4a 53 52 20 6f |#.(" ")....JSR o| 000003b0 73 61 73 63 69 0d 02 bc 0b 4c 44 41 20 23 26 38 |sasci....LDA #&8| 000003c0 0d 02 c6 10 53 54 41 20 72 6f 6d 70 6f 69 6e 74 |....STA rompoint| 000003d0 0d 02 d0 0c 4c 44 41 20 23 26 38 30 0d 02 da 12 |....LDA #&80....| 000003e0 53 54 41 20 72 6f 6d 70 6f 69 6e 74 2b 31 0d 02 |STA rompoint+1..| 000003f0 e4 0d 2e 72 65 61 64 6c 6f 6f 70 0d 02 ee 10 49 |...readloop....I| 00000400 4e 43 20 72 6f 6d 70 6f 69 6e 74 0d 02 f8 0f 42 |NC rompoint....B| 00000410 45 51 20 6e 65 77 6c 69 6e 65 0d 03 02 07 50 4c |EQ newline....PL| 00000420 41 0d 03 0c 07 50 48 41 0d 03 16 07 54 41 59 0d |A....PHA....TAY.| 00000430 03 20 0e 4a 53 52 20 6f 73 72 64 72 6d 0d 03 2a |. .JSR osrdrm..*| 00000440 0f 43 4d 50 20 23 97 28 22 20 22 29 0d 03 34 0f |.CMP #.(" ")..4.| 00000450 42 43 43 20 6e 65 77 6c 69 6e 65 0d 03 3e 0e 4a |BCC newline..>.J| 00000460 53 52 20 6f 73 61 73 63 69 0d 03 48 15 4a 4d 50 |SR osasci..H.JMP| 00000470 20 72 65 61 64 6c 6f 6f 70 2b 64 69 66 66 0d 03 | readloop+diff..| 00000480 52 0c 2e 6e 65 77 6c 69 6e 65 0d 03 5c 0e 4a 53 |R..newline..\.JS| 00000490 52 20 6f 73 6e 65 77 6c 0d 03 66 0c 2e 6e 6f 74 |R osnewl..f..not| 000004a0 68 65 72 65 0d 03 70 07 50 4c 41 0d 03 7a 07 53 |here..p.PLA..z.S| 000004b0 45 43 0d 03 84 0a 53 42 43 20 23 31 0d 03 8e 07 |EC....SBC #1....| 000004c0 50 48 41 0d 03 98 0f 42 50 4c 20 72 6f 6d 6c 6f |PHA....BPL romlo| 000004d0 6f 70 0d 03 a2 07 50 4c 41 0d 03 ac 0e 4a 4d 50 |op....PLA....JMP| 000004e0 20 6f 73 6e 65 77 6c 0d 03 b6 0c 2e 64 65 63 69 | osnewl.....deci| 000004f0 6d 61 6c 0d 03 c0 07 53 45 44 0d 03 ca 07 43 4c |mal....SED....CL| 00000500 43 0d 03 d4 0a 41 44 43 20 23 30 0d 03 de 07 43 |C....ADC #0....C| 00000510 4c 44 0d 03 e8 07 50 48 41 0d 03 f2 09 4c 53 52 |LD....PHA....LSR| 00000520 20 41 0d 03 fc 09 4c 53 52 20 41 0d 04 06 09 4c | A....LSR A....L| 00000530 53 52 20 41 0d 04 10 09 4c 53 52 20 41 0d 04 1a |SR A....LSR A...| 00000540 13 4a 53 52 20 6e 69 62 62 6c 65 2b 64 69 66 66 |.JSR nibble+diff| 00000550 0d 04 24 07 50 4c 41 0d 04 2e 09 80 20 23 26 46 |..$.PLA..... #&F| 00000560 0d 04 38 0b 2e 6e 69 62 62 6c 65 0d 04 42 07 43 |..8..nibble..B.C| 00000570 4c 43 0d 04 4c 0f 41 44 43 20 23 97 28 22 30 22 |LC..L.ADC #.("0"| 00000580 29 0d 04 56 0e 4a 4d 50 20 6f 73 61 73 63 69 0d |)..V.JMP osasci.| 00000590 04 60 0d 2e 6c 61 73 74 62 79 74 65 0d 04 6a 05 |.`..lastbyte..j.| 000005a0 5d 0d 04 74 05 ed 0d 04 7e 21 e8 27 22 53 61 76 |]..t....~!.'"Sav| 000005b0 65 20 66 69 6c 65 6e 61 6d 65 20 3d 20 22 66 69 |e filename = "fi| 000005c0 6c 65 6e 61 6d 65 24 0d 04 88 14 e7 20 66 69 6c |lename$..... fil| 000005d0 65 6e 61 6d 65 24 3d 22 22 20 e0 0d 04 92 4b 24 |ename$="" ....K$| 000005e0 73 61 76 65 3d 22 53 41 56 45 20 22 2b 66 69 6c |save="SAVE "+fil| 000005f0 65 6e 61 6d 65 24 2b 22 20 22 2b c3 7e 28 93 29 |ename$+" "+.~(.)| 00000600 2b 22 20 22 2b c3 7e 28 6c 61 73 74 62 79 74 65 |+" "+.~(lastbyte| 00000610 29 2b 22 20 46 46 46 46 38 30 30 30 20 46 46 46 |)+" FFFF8000 FFF| 00000620 46 38 30 30 30 22 0d 04 9c 11 58 25 3d 73 61 76 |F8000"....X%=sav| 00000630 65 20 83 20 32 35 36 0d 04 a6 11 59 25 3d 73 61 |e . 256....Y%=sa| 00000640 76 65 20 81 20 32 35 36 0d 04 b0 0b 2a 4f 50 54 |ve . 256....*OPT| 00000650 31 2c 32 0d 04 ba 0b d6 20 6f 73 63 6c 69 0d 04 |1,2..... oscli..| 00000660 c4 0b 2a 4f 50 54 31 2c 30 0d 04 ce 05 e0 0d 04 |..*OPT1,0.......| 00000670 d8 10 dd a4 65 71 75 62 28 62 79 74 65 29 0d 04 |....equb(byte)..| 00000680 e2 0c 3f 50 25 3d 62 79 74 65 0d 04 ec 0b 50 25 |..?P%=byte....P%| 00000690 3d 50 25 2b 31 0d 04 f6 09 3d 70 61 73 73 0d 05 |=P%+1....=pass..| 000006a0 00 10 dd a4 65 71 75 77 28 77 6f 72 64 29 0d 05 |....equw(word)..| 000006b0 0a 12 3f 50 25 3d 77 6f 72 64 20 83 20 32 35 36 |..?P%=word . 256| 000006c0 0d 05 14 13 50 25 3f 31 3d 77 6f 72 64 20 81 20 |....P%?1=word . | 000006d0 32 35 36 0d 05 1e 0b 50 25 3d 50 25 2b 32 0d 05 |256....P%=P%+2..| 000006e0 28 09 3d 70 61 73 73 0d 05 32 12 dd a4 65 71 75 |(.=pass..2...equ| 000006f0 64 28 64 6f 75 62 6c 65 29 0d 05 3c 0e 21 50 25 |d(double)..<.!P%| 00000700 3d 64 6f 75 62 6c 65 0d 05 46 0b 50 25 3d 50 25 |=double..F.P%=P%| 00000710 2b 34 0d 05 50 09 3d 70 61 73 73 0d 05 5a 13 dd |+4..P.=pass..Z..| 00000720 a4 65 71 75 73 28 73 74 72 69 6e 67 24 29 0d 05 |.equs(string$)..| 00000730 64 0f 24 50 25 3d 73 74 72 69 6e 67 24 0d 05 6e |d.$P%=string$..n| 00000740 14 50 25 3d 50 25 2b a9 28 73 74 72 69 6e 67 24 |.P%=P%+.(string$| 00000750 29 0d 05 78 09 3d 70 61 73 73 0d ff |)..x.=pass..| 0000075c