TurboForth

TurboForth is by Mark Wills and can be placed in an EPROM in a module or it can run using a TI99/4a emulator. It is compliant with Forth 83.

TurboForth Features:

• Fast execution
• F83 Compliant
• Built-in source code editor
• 31K of RAM free - TurboForth only uses 700 bytes of CPU RAM
• Supports 40 column text mode
• Supports 80 column text mode - including the editor (V9938/58 video card or F18A video chip required)
• Supports 32 column text mode
• 32 sprites
• True lower case character set
• Speech supported - both from the Speech Synthesizer built in ROM or raw speech data
• Supports blocks files up to 1MB
• Blocks live in VDP memory, not CPU memory, leaving all of RAM free for your code
• Up to 6 blocks in memory at one time
• Built in block cache - TurboForth will not load a block if it's already in memory
• Supports generic File I/O (Display, Variable, Internal, Fixed, Relative etc)
• Up to 3 files open at once
• Compatible with TI Disk controllers, Myarc Disk controllers, RAM Disks, hard disk drives (IDE and SCSI), CF7, CF7A, and nanoPEB

More information at http://turboforth.net/