Home » Archimedes archive » Acorn Computing » 1994 11 subscription disc.adf » 9411s » FontMgr2/!FontMGR2/TechText/FontPath
FontMgr2/!FontMGR2/TechText/FontPath
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 » Archimedes archive » Acorn Computing » 1994 11 subscription disc.adf » 9411s |
| Filename: | FontMgr2/!FontMGR2/TechText/FontPath |
| Read OK: | ✔ |
| File size: | 041C bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
!FontManager and how it changes Font$Path ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ----------------------------------------------- When EXTENDED PATHS is ON ~~~~~~~~~~~~~~~~~~~~~~~~~ This creates a number of system variables <Za$Path>, <Zb$Path>, <Zc$Path> etc... each of these system variables is a macro, and it holds the pathname of a group. <F$Dir>.Symbols, <F$Dir>.SanSerifs You may have noticed that the first paths are shorter and that in fact they can be represented by an even shorter notation: Za:, Zb:, Zc: So, written to <Font$Path> is Za:,Zb:,Zc: and so more groups can fit into the 256bytes that are avaiable. ----------------------------------------------- With EXTENDED PATHS turned OFF. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This simply writes the paths into <Font$Path> Resources:$.Fonts.,<F$Dir>.SanSerif., <F$Dir>. Roman.,<F$Dir>.Old. So you can see how 256 bytes can be eaten up *VERY* quickly. This is the reason why I strongly reccomend that EXTENDED PATHS be left on. -----------------------------------------------
00000000 21 46 6f 6e 74 4d 61 6e 61 67 65 72 20 61 6e 64 |!FontManager and| 00000010 20 68 6f 77 20 69 74 20 63 68 61 6e 67 65 73 20 | how it changes | 00000020 46 6f 6e 74 24 50 61 74 68 0a 7e 7e 7e 7e 7e 7e |Font$Path.~~~~~~| 00000030 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e |~~~~~~~~~~~~~~~~| * 00000050 7e 7e 7e 0a 0a 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |~~~..-----------| 00000060 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 00000080 2d 2d 2d 2d 0a 0a 57 68 65 6e 20 45 58 54 45 4e |----..When EXTEN| 00000090 44 45 44 20 50 41 54 48 53 20 69 73 20 4f 4e 0a |DED PATHS is ON.| 000000a0 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e |~~~~~~~~~~~~~~~~| 000000b0 7e 7e 7e 7e 7e 7e 7e 7e 7e 0a 0a 54 68 69 73 20 |~~~~~~~~~..This | 000000c0 63 72 65 61 74 65 73 20 61 20 6e 75 6d 62 65 72 |creates a number| 000000d0 20 6f 66 20 73 79 73 74 65 6d 20 76 61 72 69 61 | of system varia| 000000e0 62 6c 65 73 0a 0a 3c 5a 61 24 50 61 74 68 3e 2c |bles..<Za$Path>,| 000000f0 20 3c 5a 62 24 50 61 74 68 3e 2c 20 3c 5a 63 24 | <Zb$Path>, <Zc$| 00000100 50 61 74 68 3e 20 65 74 63 2e 2e 2e 0a 0a 65 61 |Path> etc.....ea| 00000110 63 68 20 6f 66 20 74 68 65 73 65 20 73 79 73 74 |ch of these syst| 00000120 65 6d 20 76 61 72 69 61 62 6c 65 73 20 69 73 20 |em variables is | 00000130 61 20 6d 61 63 72 6f 2c 20 61 6e 64 0a 69 74 20 |a macro, and.it | 00000140 68 6f 6c 64 73 20 74 68 65 20 70 61 74 68 6e 61 |holds the pathna| 00000150 6d 65 20 6f 66 20 61 20 67 72 6f 75 70 2e 0a 0a |me of a group...| 00000160 3c 46 24 44 69 72 3e 2e 53 79 6d 62 6f 6c 73 2c |<F$Dir>.Symbols,| 00000170 20 3c 46 24 44 69 72 3e 2e 53 61 6e 53 65 72 69 | <F$Dir>.SanSeri| 00000180 66 73 0a 0a 59 6f 75 20 6d 61 79 20 68 61 76 65 |fs..You may have| 00000190 20 6e 6f 74 69 63 65 64 20 74 68 61 74 20 74 68 | noticed that th| 000001a0 65 20 66 69 72 73 74 20 70 61 74 68 73 20 61 72 |e first paths ar| 000001b0 65 0a 73 68 6f 72 74 65 72 20 61 6e 64 20 74 68 |e.shorter and th| 000001c0 61 74 20 69 6e 20 66 61 63 74 20 74 68 65 79 20 |at in fact they | 000001d0 63 61 6e 20 62 65 0a 72 65 70 72 65 73 65 6e 74 |can be.represent| 000001e0 65 64 20 62 79 20 61 6e 20 65 76 65 6e 20 73 68 |ed by an even sh| 000001f0 6f 72 74 65 72 20 6e 6f 74 61 74 69 6f 6e 3a 0a |orter notation:.| 00000200 0a 5a 61 3a 2c 20 5a 62 3a 2c 20 5a 63 3a 0a 0a |.Za:, Zb:, Zc:..| 00000210 53 6f 2c 20 77 72 69 74 74 65 6e 20 74 6f 20 3c |So, written to <| 00000220 46 6f 6e 74 24 50 61 74 68 3e 20 69 73 20 5a 61 |Font$Path> is Za| 00000230 3a 2c 5a 62 3a 2c 5a 63 3a 20 61 6e 64 0a 73 6f |:,Zb:,Zc: and.so| 00000240 20 6d 6f 72 65 20 67 72 6f 75 70 73 20 63 61 6e | more groups can| 00000250 20 66 69 74 20 69 6e 74 6f 20 74 68 65 20 32 35 | fit into the 25| 00000260 36 62 79 74 65 73 20 74 68 61 74 0a 61 72 65 20 |6bytes that.are | 00000270 61 76 61 69 61 62 6c 65 2e 0a 0a 2d 2d 2d 2d 2d |avaiable...-----| 00000280 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 000002a0 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0a 0a 57 69 74 68 |----------..With| 000002b0 20 45 58 54 45 4e 44 45 44 20 50 41 54 48 53 20 | EXTENDED PATHS | 000002c0 74 75 72 6e 65 64 20 4f 46 46 2e 0a 7e 7e 7e 7e |turned OFF..~~~~| 000002d0 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e |~~~~~~~~~~~~~~~~| 000002e0 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 7e 0a 0a 54 68 69 |~~~~~~~~~~~..Thi| 000002f0 73 20 73 69 6d 70 6c 79 20 77 72 69 74 65 73 20 |s simply writes | 00000300 74 68 65 20 70 61 74 68 73 20 69 6e 74 6f 20 3c |the paths into <| 00000310 46 6f 6e 74 24 50 61 74 68 3e 0a 0a 52 65 73 6f |Font$Path>..Reso| 00000320 75 72 63 65 73 3a 24 2e 46 6f 6e 74 73 2e 2c 3c |urces:$.Fonts.,<| 00000330 46 24 44 69 72 3e 2e 53 61 6e 53 65 72 69 66 2e |F$Dir>.SanSerif.| 00000340 2c 20 3c 46 24 44 69 72 3e 2e 0a 52 6f 6d 61 6e |, <F$Dir>..Roman| 00000350 2e 2c 3c 46 24 44 69 72 3e 2e 4f 6c 64 2e 0a 0a |.,<F$Dir>.Old...| 00000360 53 6f 20 79 6f 75 20 63 61 6e 20 73 65 65 20 68 |So you can see h| 00000370 6f 77 20 32 35 36 20 62 79 74 65 73 20 63 61 6e |ow 256 bytes can| 00000380 20 62 65 20 65 61 74 65 6e 20 75 70 0a 2a 56 45 | be eaten up.*VE| 00000390 52 59 2a 20 71 75 69 63 6b 6c 79 2e 20 20 54 68 |RY* quickly. Th| 000003a0 69 73 20 69 73 20 74 68 65 20 72 65 61 73 6f 6e |is is the reason| 000003b0 20 77 68 79 20 49 0a 73 74 72 6f 6e 67 6c 79 20 | why I.strongly | 000003c0 72 65 63 63 6f 6d 65 6e 64 20 74 68 61 74 20 45 |reccomend that E| 000003d0 58 54 45 4e 44 45 44 20 50 41 54 48 53 20 62 65 |XTENDED PATHS be| 000003e0 0a 6c 65 66 74 20 6f 6e 2e 0a 0a 2d 2d 2d 2d 2d |.left on...-----| 000003f0 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 00000410 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0a 0a |----------..| 0000041c
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