Sinclair ZX80 / ZX81 / Z88 Forums

Note:
No LET Command.
A comma after the PRINT AT
Border & ink on the new ROM release.
No "Enjoy yourself !" using the new ROM :

Hi Johan,
It's clever, i will able to do a relative jump on this SUB function now !
Thanks.

Thanks Dr Beep ! In your code : sub 192 jr c,one ?=? sub 192 jp m,one minus value ? ... Another similar machine code routine to compress the screen with testing the bit#6 and count all above characters from Greg... https://www.sinclairzxworld.com/viewtopic.php?f=5&t=1587&p=16388&sid=b912bfe308bef031...

Hi all, On a displayed character, you had to send a 8bits character, but in case of pure text, the inverted video character can be deleted, and the bit #6 too... In fact, only 6bits are needed to display a standard character. We can compress this text to get "111111-11 + 1111-1111 + 11-111111" bits ...

-New text compilator function to use like [HEX: x,x,x,x] , [DEC: x,x,x,x] or [BIN: x,x,x,x]... 1 REM [TX6: Mytext + $0A character at the end] Convert a 8bits ascii text to a diet 6bits Zx character. The compiled binary string in a REM will be chained ... 111111-11 ;1111-1111;11-111111 = 4 characters...

Vb81 XuR release 09/05/22 (Quick update/Vb81 need to be installed with "VB5 fr" DLLs):

[Main project updated]

Have fun !

Hi,
A little demo: "One Piece" (30 screenshots) A little demo: "running horse" (8 screenshots) Tested OK on EO...

HI VB users, Prefer this REM: #¸¸¸¸¸¸¸¸¸¸¸¸¸¸¸¸¸¸¸¸¸¸¸¸¸¸¸¸ # VB81 XUR - ASM SCREEN SHOT. #®®®®®®®®®®®®®®®®®®®®®®®®®®®® # #============================ #Encoder for screen compression # by XAVSNAP #Revised 09/15 BY GCH [Greg;GCHarder] #============================ 1 REM [HEX:\ 76,76,E7,CD,92,0D,CD,F...

Hi, Minor update to add a new graphic feature to save the D_file in a text ASM routine. The D_file is saved with a decoder to decompress it ( 1 REM, 61 bytes length), in a text listing to simply reload it. You can extract the picture in the screen memory just by using its line number. You can put an...

Hi Greg, Many thanks for this bug report ! It's a rare condition in an extra-routine designed to clear the main code. In case of ROM memory commented address, like "; GET ERR-SP", a old (?) convention used "LD RR"... set to "RR ". But "E RR -SP" include a "RR"... "LD" & "RR" was swapped. :shock: Cod...