I will need to know which of the software has your own copyright, as I will not offer the copyright software (such as Quicksilva titles and magazine titles) for download unless their permission has been obtained, although I can of course list them and offer a link to your site
Hi Kmurta many thanks for this as I am really into forth can You confirm this is emulator only or can it be ported onto a real ZX81?kmurta wrote:I introduce here my last project, a DTC forth implementation to the ZX81. Enjoy!
Of course, you has my permission.RWAP wrote:You have some really interesting software on that page - can you please provide permission for me to include your software and details on my own website - http://www.rwapsoftware.co.uk/zx81/zx81_software.html
The programs that I developed and now are public domain:RWAP wrote:I will need to know which of the software has your own copyright, as I will not offer the copyright software (such as Quicksilva titles and magazine titles) for download unless their permission has been obtained, although I can of course list them and offer a link to your site
ZX81 Toddy Forth
ZX81 Dancing Demon
Micro Sistemas Forth V2.0
ZX81 Music Interpreter
Toddy Forth was developed with the purpose of creating programs for use on my TK85, adapted with characters board mapped at address 3000h and ZON-X compatible sound board. But it can be used in a standard ZX81 too, just disable the UDG's withMoggy wrote: Hi Kmurta many thanks for this as I am really into forth can You confirm this is emulator only or can it be ported onto a real ZX81?
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HEX 1E 461C C! COLD
Indeed, 4 programs supplied with Toddy Forth was compiled for use in a standard ZX81:
HANOI.P / BREAKOUT-STD.P / MANCALA.P / PLOT-TEST.P
The forth programs can be written in a plain text file (see examples at Progs directory) and loaded in Eightyone emulator to be compiled:
The display file is fixed in memory at address 4092h (first screen position) and the forth system variables are:
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43AB S0: Base value of the parameter stack 43AD R0: Base value of the return stack 43AF RSP: Return Stack Pointer 43B1 TIB: Terminal Input Buffer 43B3 LBP: Line Buffer Pointer 43B5 STATE: Contain the compilation state 43B7 BASE: Current number base, used for input and output conversion 43B9 HLD: Holds the address of the last character during numeric output conversion 43BB CUR_POS: Position of cursor on the screen 43BD DP: Dictionary Pointer 43BF CONTEXT: A pointer to the vocabulary within which dictionary searches will first begin 43C1 CURRENT: A pointer to the vocabulary where new definitions are created 43C3 LAST: Last word defined in CURRENT vocabulary
At last, a note about the programs saved with CSAVE: the Eightyone has a bug at LOAD patch so EO resets after load the program. To deal with it, are two options: 1- use the EO V0.43C that works fine with CSAVE or 2- add a zero byte at end of the p file, with a hex editor (I have chosen the second option).
It works for me in Vb81 XuR:XavSnap wrote:Hi,
No way on Vb81 XuR !!! ( lol ... french Forth is better... )
Perhaps on the sZ81 emulator.(wrx+zonx)
Ok, it's done!RWAP wrote:Could you upload the version which works with the standard ZX81 onto your website as well - that would make it easier for everyone
I includes the file tforth10-std.p for standard zx81.
Can you clarify which scheme your software adaptations support please - see the definitions at the start of that topic.