This thread is a discussion of the evolution of fbForth, my file-based implementation of TI Forth. Though I have replaced the sector-based block I/O of TI Forth with a file-based version for fbForth, I have written utilities to browse TI Forth disks and to copy TI Forth blocks to fbForth blocks files (see latest FBLOCKS file far below).
Several obvious advantages to using file I/O over sector I/O:
- It is simple to make a system disk of any larger size and density by just copying the system files to the new (usually larger) disk.
- If there is filespace on the system disk, you can save other useful programs there, such as CorComp's Disk Manager, without fear of corrupting the system disk.
- There is no danger of corrupting a disk by saving Forth blocks---they are only stored to the current blocks file.
- One can use disks of different sizes with impunity.
The only significant disadvantage I can think of is not being able to use the new system with the old. The viewer/copier utilities, which I mentioned above and included in the latest FBLOCKS file posted far below, render that merely an inconvenience. There is also a slight performance penalty to reading 8 records one at a time instead of 4 sectors all at once for each block read. This is somewhat mitigated by saving 896 bytes of VRAM.
I am certainly open to any and all suggestions.
new9.png 2.52KB 3 downloads fbForth 2.0: A File-Based Cartridge Implementation of TI Forth is now published as a book available for $14.99 on CreateSpace.com and Amazon.com. It is also on Amazon Europe for various similar prices:
fbForth20BookCover_front_LR.png 119.82KB 0 downloads
fbForth downloads & cartridge (fbForth 2.0)—
- fbForth 1.0 (E/A3 executable):
- fbForth 2.0:9 (32KB ROM cartridge) [NOTE: Contains new Font Editor]:
- 80-Column option on TI-startup screen.
- Bug fixes and the handful of words added to the resident dictionary are listed in post #1067, post #1116, post #1170 and post #1173 and following posts.
- The following additonal words have also been added to the resident dictionary:
- DATA[ ]DATA DCHAR SPDCHAR
- CODE: ;CODE
- WRAP PANEL SCROLL
- TALKING? SAY STREAM
- SOUND PLAY PLAYING?
- S0&TIB! SAMS? SAMS! >MAP
- \ N>S DOES>CODE: S|F SM/REM FM/MOD
- ■■■CARTRIDGE available■■■ ($30 + S&H)—PM me if you want me to build you one.
- new9.png 2.52KB 3 downloadsfbForth 2.0 labels (as on the above cartridge image) at $0.50 each + S&H (1st class stamp)—PM me if interested.
- new9.png 2.52KB 3 downloadsFour 8KiB Inverted Bank Binaries + Batch File (packs binaries, inverted or normal, into 32KiB, 64KiB, 128KiB, 256KiB and 512KiB images)—
- Classic99 & Real Iron 32KiB Inverted Binary (contains latest FBLOCKS and fbForthBinPack ZIPs) [ NOTE: In Classic99.ini, the rom0 line should be: rom0=3|0000|8000|MODS\fbForth200_3.bin ]—
- fbForth 2.0:3— fbForth200_20151026.zip 74.95KB 22 downloads
- fbForth 2.0:4— fbForth200_20151109.zip 77.92KB 22 downloads
- fbForth 2.0:5— fbForth200_20151208.zip 84.88KB 23 downloads
- fbForth 2.0:7— fbForth2.0-7_Cartridge_20160412.zip 85.57KB 25 downloads
- fbForth 2.0:8— fbForth200_20160529.zip 108.07KB 22 downloads
- fbForth 2.0:9— fbForth200_20160924.zip 132.71KB 26 downloads
- MESS 32KiB Inverted Binary in RPK file (contains latest FBLOCKS and fbForthBinPack ZIPs)—
- fbForth 2.0:3— fbForth200_MESS_20151026.zip 75.42KB 17 downloads
- fbForth 2.0:4— fbForth200_MESS_20151109.zip 78.4KB 13 downloads
- fbForth 2.0:5— fbForth200_MESS_20151208.zip 85.35KB 13 downloads
- fbForth 2.0:7— fbForth2.0-7_Cartridge_MESS_20160412.zip 86.04KB 9 downloads
- fbForth 2.0:8— fbForth200_MESS_20160529.zip 108.54KB 11 downloads
- fbForth 2.0:9— fbForth200_MESS_20160924.zip 133.19KB 12 downloads
- [April 28, 2017 Update]—fbForth 2.0: A File-Based Cartridge Implementation of TI Forth— fbForth_2.0_Manual_20170428.pdf 1.95MB 15 downloads
- [June 20, 2015 Update]—fbForth 2.0: A File-Based Cartridge Implementation of TI Forth— fbForth_2.0_Manual_20150620.pdf 1.52MB 66 downloads
- Previous FBLOCKS files—
- FBLOCKS_20151102.zip 53.95KB 17 downloads
- FBLOCKS_20151109.zip 56.89KB 8 downloads
- FBLOCKS_20151117.zip 59.3KB 9 downloads
- FBLOCKS_20151130.zip 63.19KB 11 downloads
- FBLOCKS_20151204.zip 63.25KB 13 downloads
- FBLOCKS_20151208.zip 63.8KB 14 downloads
- FBLOCKS_20160406.zip 63.83KB 8 downloads
- FBLOCKS_20160412.zip 64.33KB 13 downloads
- FBLOCKS_20160529.zip 65.72KB 17 downloads
- FBLOCKS_20160617.zip 88.15KB 10 downloads
- FBLOCKS_20160620.zip 90.63KB 14 downloads
- FBLOCKS_20160924.zip 90.69KB 14 downloads
- Latest FBLOCKS file—(FIAD file; 90KiB, 360KiB and 400KiB (CF7+/nanoPEB) images; as well as a few font files)—
17 downloads, which includes
Compact Flash Utilities—Allows mounting of CF virtual disks in nanoPEB/CF7+ devices
ASM>CODE—Outputs Machine Code in CODE: ... ;CODE format to a file in Append mode
CPYBLK—Block Copying Utility—[fixed bug that would copy blocks from wrong file if they were already in block buffers and had corresponding block numbers]
CRU Words—rewritten with CODE: ... ;CODE
Memory Dump Utility [Note: VLIST is now part of the resident dictionary]
TRACE—Colon Definition Tracing
Disk Catalog Utility, DIR (ported from TurboForth code with Willsy’s permission
Disk Catalog Utility, CAT (reads VIB, FDIR and FDRs to extract information)
More Useful Stack Words etc. (most required by the String Library)
Portable String Library (ported by Willsy and slightly modified by Yours Truly)
TI Forth Block Utilities (includes a windowed viewer/copier)—fixed EMIT8 bug
Compact Flash Utilities for mounting virtual disks in the nanoPEB/CF7+
In addition to the above, there are much-faster-loading binary images of the
- 64-Column Editor
Portable String Library
Edited by Lee Stewart, Sun Aug 20, 2017 2:41 PM.