Home » Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_22.ADF » P/VTtxt1
P/VTtxt1
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_22.ADF |
| Filename: | P/VTtxt1 |
| Read OK: | ✔ |
| File size: | 0691 bytes |
| Load address: | 24204556 |
| Exec address: | 7454562E |
File contents
VIEW TYPE ~~~~~~~~~ By Richard Dimond This program (fileanme V-TYPE) was mentioned in my explanation of the new coding in Issue 20 but was omitted from the disc. I have since made small changes so that you can alter HIMEM to enable longer files to be printed. The default value is &2600 as on the discs. There are two routines in CODE4, at &900 is a short clear routine to clear the memory between HIMEM and &4000 (MODE3 screen start). This is needed as the print routine checks for a zero byte to stop the routine. This seemed to be the easiest way to check for the end of the file. The second is the print routine at &98C. This uses OSBYTE &87 to check the MODE and sets a flag if MODE6 is selected. If this is set, the routine includes the word-wrapping routine for 40 column printing, otherwise the routine runs normally for 80 columns. In the menus, another flag is used to enable the perforation skip routine. This simply counts the CR characters to print the number of lines and then the number of blank lines to skip to the next page. I suggest the you transfer the program together with CODE4 to the disc you use for your submissions so that you can print out your text and see how it will appear in the magazine. If the file is too long, it will not be all printed out and there may be some odd characters at the end. This is because it may print some characters from the screen area before finding a zero byte. The file will then need to be split at some point, preferrably at the end of a paragraph though it can be at the end of any line. **************************************************************************
00000000 0d 56 49 45 57 20 54 59 50 45 0d 7e 7e 7e 7e 7e |.VIEW TYPE.~~~~~| 00000010 7e 7e 7e 7e 0d 42 79 20 52 69 63 68 61 72 64 20 |~~~~.By Richard | 00000020 44 69 6d 6f 6e 64 0d 0d 54 68 69 73 20 70 72 6f |Dimond..This pro| 00000030 67 72 61 6d 20 28 66 69 6c 65 61 6e 6d 65 20 56 |gram (fileanme V| 00000040 2d 54 59 50 45 29 20 77 61 73 1a 20 6d 65 6e 74 |-TYPE) was. ment| 00000050 69 6f 6e 65 64 20 69 6e 20 6d 79 20 65 78 70 6c |ioned in my expl| 00000060 61 6e 61 74 69 6f 6e 20 6f 66 20 74 68 65 20 6e |anation of the n| 00000070 65 77 0d 63 6f 64 69 6e 67 20 69 6e 20 49 73 73 |ew.coding in Iss| 00000080 75 65 20 32 30 20 62 75 74 20 77 61 73 20 6f 6d |ue 20 but was om| 00000090 69 74 74 65 64 20 66 72 6f 6d 20 74 68 65 20 64 |itted from the d| 000000a0 69 73 63 2e 20 20 49 20 68 61 76 65 20 73 69 6e |isc. I have sin| 000000b0 63 65 20 6d 61 64 65 20 73 6d 61 6c 6c 0d 63 68 |ce made small.ch| 000000c0 61 6e 67 65 73 20 73 6f 20 74 68 61 74 20 79 6f |anges so that yo| 000000d0 75 20 63 61 6e 20 61 6c 74 65 72 1a 20 48 49 4d |u can alter. HIM| 000000e0 45 4d 20 74 6f 20 65 6e 61 62 6c 65 20 6c 6f 6e |EM to enable lon| 000000f0 67 65 72 20 66 69 6c 65 73 20 74 6f 20 62 65 20 |ger files to be | 00000100 70 72 69 6e 74 65 64 2e 20 0d 54 68 65 20 64 65 |printed. .The de| 00000110 66 61 75 6c 74 20 76 61 6c 75 65 20 69 73 20 26 |fault value is &| 00000120 32 36 30 30 20 61 73 20 6f 6e 20 74 68 65 20 64 |2600 as on the d| 00000130 69 73 63 73 2e 0d 0d 54 68 65 72 65 20 61 72 65 |iscs...There are| 00000140 20 74 77 6f 20 72 6f 75 74 69 6e 65 73 20 69 6e | two routines in| 00000150 20 43 4f 44 45 34 2c 20 61 74 20 26 39 30 30 20 | CODE4, at &900 | 00000160 69 73 20 61 20 73 68 6f 72 74 20 63 6c 65 61 72 |is a short clear| 00000170 20 72 6f 75 74 69 6e 65 20 74 6f 20 63 6c 65 61 | routine to clea| 00000180 72 0d 74 68 65 20 6d 65 6d 6f 72 79 1a 20 62 65 |r.the memory. be| 00000190 74 77 65 65 6e 20 48 49 4d 45 4d 1a 20 61 6e 64 |tween HIMEM. and| 000001a0 20 26 34 30 30 30 20 28 4d 4f 44 45 33 20 73 63 | &4000 (MODE3 sc| 000001b0 72 65 65 6e 20 73 74 61 72 74 29 2e 20 20 54 68 |reen start). Th| 000001c0 69 73 20 69 73 20 6e 65 65 64 65 64 0d 61 73 20 |is is needed.as | 000001d0 74 68 65 20 20 70 72 69 6e 74 20 72 6f 75 74 69 |the print routi| 000001e0 6e 65 1a 20 63 68 65 63 6b 73 1a 20 66 6f 72 1a |ne. checks. for.| 000001f0 20 61 20 7a 65 72 6f 20 62 79 74 65 20 74 6f 20 | a zero byte to | 00000200 73 74 6f 70 20 74 68 65 20 72 6f 75 74 69 6e 65 |stop the routine| 00000210 2e 20 20 54 68 69 73 0d 73 65 65 6d 65 64 20 74 |. This.seemed t| 00000220 6f 20 62 65 20 74 68 65 20 65 61 73 69 65 73 74 |o be the easiest| 00000230 20 77 61 79 20 74 6f 20 63 68 65 63 6b 20 66 6f | way to check fo| 00000240 72 20 74 68 65 20 65 6e 64 20 6f 66 20 74 68 65 |r the end of the| 00000250 20 66 69 6c 65 2e 0d 0d 54 68 65 20 73 65 63 6f | file...The seco| 00000260 6e 64 20 69 73 20 74 68 65 20 70 72 69 6e 74 20 |nd is the print | 00000270 72 6f 75 74 69 6e 65 20 61 74 1a 20 26 39 38 43 |routine at. &98C| 00000280 2e 1a 20 20 54 68 69 73 1a 20 75 73 65 73 20 4f |.. This. uses O| 00000290 53 42 59 54 45 20 26 38 37 20 74 6f 20 63 68 65 |SBYTE &87 to che| 000002a0 63 6b 0d 74 68 65 1a 20 4d 4f 44 45 1a 20 61 6e |ck.the. MODE. an| 000002b0 64 20 73 65 74 73 20 61 20 66 6c 61 67 20 69 66 |d sets a flag if| 000002c0 20 4d 4f 44 45 36 20 69 73 20 73 65 6c 65 63 74 | MODE6 is select| 000002d0 65 64 2e 1a 20 20 49 66 1a 20 74 68 69 73 1a 20 |ed.. If. this. | 000002e0 69 73 1a 20 73 65 74 2c 1a 20 74 68 65 0d 72 6f |is. set,. the.ro| 000002f0 75 74 69 6e 65 1a 20 69 6e 63 6c 75 64 65 73 1a |utine. includes.| 00000300 20 74 68 65 1a 20 77 6f 72 64 2d 77 72 61 70 70 | the. word-wrapp| 00000310 69 6e 67 1a 20 72 6f 75 74 69 6e 65 1a 20 66 6f |ing. routine. fo| 00000320 72 1a 20 34 30 1a 20 63 6f 6c 75 6d 6e 1a 20 70 |r. 40. column. p| 00000330 72 69 6e 74 69 6e 67 2c 0d 6f 74 68 65 72 77 69 |rinting,.otherwi| 00000340 73 65 20 74 68 65 20 72 6f 75 74 69 6e 65 20 72 |se the routine r| 00000350 75 6e 73 20 6e 6f 72 6d 61 6c 6c 79 20 66 6f 72 |uns normally for| 00000360 20 38 30 20 63 6f 6c 75 6d 6e 73 2e 0d 0d 49 6e | 80 columns...In| 00000370 20 74 68 65 20 6d 65 6e 75 73 2c 20 61 6e 6f 74 | the menus, anot| 00000380 68 65 72 20 66 6c 61 67 20 69 73 20 75 73 65 64 |her flag is used| 00000390 20 74 6f 20 65 6e 61 62 6c 65 20 74 68 65 20 70 | to enable the p| 000003a0 65 72 66 6f 72 61 74 69 6f 6e 20 73 6b 69 70 20 |erforation skip | 000003b0 72 6f 75 74 69 6e 65 2e 0d 54 68 69 73 20 73 69 |routine..This si| 000003c0 6d 70 6c 79 20 63 6f 75 6e 74 73 20 74 68 65 20 |mply counts the | 000003d0 43 52 20 63 68 61 72 61 63 74 65 72 73 20 74 6f |CR characters to| 000003e0 20 70 72 69 6e 74 20 74 68 65 20 6e 75 6d 62 65 | print the numbe| 000003f0 72 20 6f 66 20 6c 69 6e 65 73 20 61 6e 64 20 74 |r of lines and t| 00000400 68 65 6e 0d 74 68 65 20 6e 75 6d 62 65 72 20 6f |hen.the number o| 00000410 66 20 62 6c 61 6e 6b 20 6c 69 6e 65 73 20 74 6f |f blank lines to| 00000420 20 73 6b 69 70 20 74 6f 20 74 68 65 20 6e 65 78 | skip to the nex| 00000430 74 20 70 61 67 65 2e 0d 0d 49 20 73 75 67 67 65 |t page...I sugge| 00000440 73 74 20 74 68 65 20 79 6f 75 20 74 72 61 6e 73 |st the you trans| 00000450 66 65 72 20 74 68 65 20 70 72 6f 67 72 61 6d 20 |fer the program | 00000460 74 6f 67 65 74 68 65 72 20 77 69 74 68 20 43 4f |together with CO| 00000470 44 45 34 20 74 6f 20 74 68 65 20 64 69 73 63 20 |DE4 to the disc | 00000480 79 6f 75 0d 75 73 65 20 66 6f 72 20 79 6f 75 72 |you.use for your| 00000490 20 73 75 62 6d 69 73 73 69 6f 6e 73 20 73 6f 1a | submissions so.| 000004a0 20 74 68 61 74 1a 20 79 6f 75 20 63 61 6e 20 70 | that. you can p| 000004b0 72 69 6e 74 20 6f 75 74 20 79 6f 75 72 20 74 65 |rint out your te| 000004c0 78 74 20 61 6e 64 20 73 65 65 20 68 6f 77 0d 69 |xt and see how.i| 000004d0 74 20 77 69 6c 6c 20 61 70 70 65 61 72 20 69 6e |t will appear in| 000004e0 20 74 68 65 20 6d 61 67 61 7a 69 6e 65 2e 0d 0d | the magazine...| 000004f0 49 66 20 74 68 65 20 66 69 6c 65 20 69 73 20 74 |If the file is t| 00000500 6f 6f 20 6c 6f 6e 67 2c 20 69 74 20 77 69 6c 6c |oo long, it will| 00000510 1a 20 6e 6f 74 1a 20 62 65 20 61 6c 6c 20 70 72 |. not. be all pr| 00000520 69 6e 74 65 64 20 6f 75 74 20 61 6e 64 20 74 68 |inted out and th| 00000530 65 72 65 20 6d 61 79 20 62 65 0d 73 6f 6d 65 20 |ere may be.some | 00000540 6f 64 64 20 63 68 61 72 61 63 74 65 72 73 20 61 |odd characters a| 00000550 74 20 74 68 65 1a 20 65 6e 64 2e 1a 20 20 54 68 |t the. end.. Th| 00000560 69 73 1a 20 69 73 1a 20 62 65 63 61 75 73 65 1a |is. is. because.| 00000570 20 69 74 1a 20 6d 61 79 1a 20 70 72 69 6e 74 1a | it. may. print.| 00000580 20 73 6f 6d 65 0d 63 68 61 72 61 63 74 65 72 73 | some.characters| 00000590 20 66 72 6f 6d 20 74 68 65 20 73 63 72 65 65 6e | from the screen| 000005a0 20 61 72 65 61 20 62 65 66 6f 72 65 20 66 69 6e | area before fin| 000005b0 64 69 6e 67 20 61 20 7a 65 72 6f 20 62 79 74 65 |ding a zero byte| 000005c0 2e 20 20 54 68 65 20 66 69 6c 65 20 77 69 6c 6c |. The file will| 000005d0 0d 74 68 65 6e 20 6e 65 65 64 20 74 6f 20 62 65 |.then need to be| 000005e0 20 73 70 6c 69 74 20 61 74 20 73 6f 6d 65 20 70 | split at some p| 000005f0 6f 69 6e 74 2c 20 70 72 65 66 65 72 72 61 62 6c |oint, preferrabl| 00000600 79 20 61 74 20 74 68 65 20 65 6e 64 20 6f 66 20 |y at the end of | 00000610 61 20 70 61 72 61 67 72 61 70 68 0d 74 68 6f 75 |a paragraph.thou| 00000620 67 68 20 69 74 20 63 61 6e 20 62 65 20 61 74 20 |gh it can be at | 00000630 74 68 65 20 65 6e 64 20 6f 66 20 61 6e 79 20 6c |the end of any l| 00000640 69 6e 65 2e 0d 0d 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |ine...**********| 00000650 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************| * 00000690 0d |.| 00000691
P/VTtxt1.m0
P/VTtxt1.m1
P/VTtxt1.m2
P/VTtxt1.m4
P/VTtxt1.m5
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