eForth Version 2
eForth model was designed for portability, and only 31 primitive FORTH
words are machine dependent and must be coded for specific underlying
CPU. It is slow except for the very fast CPU's like 80x86.
For real applications on the less capable CPU's like 8051 and 6805, eForth
must be optimized to increase its execution speed. Over the years, Dr. C.
H. Ting had occasions to make improvements to many eForth
implementations, and released them to the public domain.
In these implementations, th Subroutine Threading Model was adopted,
replacing the traditional Direct Threading Model, and all common FORTH
words were recoded in machine instructions to push performance.
eForth model was designed for portability, and only 31 primitive FORTH
words are machine dependent and must be coded for specific underlying
CPU. It is slow except for the very fast CPU's like 80x86.
For real applications on the less capable CPU's like 8051 and 6805, eForth
must be optimized to increase its execution speed. Over the years, Dr. C.
H. Ting had occasions to make improvements to many eForth
implementations, and released them to the public domain.
In these implementations, th Subroutine Threading Model was adopted,
replacing the traditional Direct Threading Model, and all common FORTH
words were recoded in machine instructions to push performance.
PowePC eForth, C. H. Ting
A tool program running under MPW on PowerPC Macintosh. NEXT is a
branch-through-link-register machine instruction and the Forth virtual
engine is very fast.
6805 eForth, C. H. Ting
Subroutine threaded eForth is ported to 6805. Fully optimized so that the
interpreter and compiler run as fast as possible.
8086 eForth Version 2.02, C. H. Ting
Enhanced eForth for 8086. Name and code dictionary unified. It can
load source code from DOS text files and dump EXE file image. It is
useful to develop substantial applications in the DOS environment.
8051 eForth Version 2.03, C. H. Ting
Enhanced eForth for 8051. Optimized using subroutine threading. Name
and code dictionary unified. It can load source code and dump core
image through the serial port. It is useful to develop substantial
applications.
80C51XA eForth Version 2.2, C. H. Ting
Enhanced eForth for 80C51XA, a 16 bit processor from Phillips.
Optimized using subroutine threading.
6812 eForth Version 2.2, C. H. Ting
Enhanced eForth for Motolora 68HC12 16 bit processor. Optimized using
subroutine threading.
2181 eForth Version 2.2, C. H. Ting
Enhanced eForth for ADSP2181 DSP chip from Analog Devices.
F#, Cheahsin Yap
eForth for Windows XP. The easiest way to access Windows resources to
develop industrial applications for Windows operating system. Source
code included so one can customize eForth for applications.
A tool program running under MPW on PowerPC Macintosh. NEXT is a
branch-through-link-register machine instruction and the Forth virtual
engine is very fast.
6805 eForth, C. H. Ting
Subroutine threaded eForth is ported to 6805. Fully optimized so that the
interpreter and compiler run as fast as possible.
8086 eForth Version 2.02, C. H. Ting
Enhanced eForth for 8086. Name and code dictionary unified. It can
load source code from DOS text files and dump EXE file image. It is
useful to develop substantial applications in the DOS environment.
8051 eForth Version 2.03, C. H. Ting
Enhanced eForth for 8051. Optimized using subroutine threading. Name
and code dictionary unified. It can load source code and dump core
image through the serial port. It is useful to develop substantial
applications.
80C51XA eForth Version 2.2, C. H. Ting
Enhanced eForth for 80C51XA, a 16 bit processor from Phillips.
Optimized using subroutine threading.
6812 eForth Version 2.2, C. H. Ting
Enhanced eForth for Motolora 68HC12 16 bit processor. Optimized using
subroutine threading.
2181 eForth Version 2.2, C. H. Ting
Enhanced eForth for ADSP2181 DSP chip from Analog Devices.
F#, Cheahsin Yap
eForth for Windows XP. The easiest way to access Windows resources to
develop industrial applications for Windows operating system. Source
code included so one can customize eForth for applications.
eForth Version 2 Implementations
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