Crippled Software*SOLVED*

Discussion about ZX80 / ZX81 Software
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XavSnap
Posts: 1940
Joined: Sat May 10, 2008 4:23 pm
Location: 'Zx81 France' Fb group.

Re: Crippled Software

Post by XavSnap »

If vertical plot limit is 191, what is the horizontal plot limit?
H=$1F = 31 (<=30) :?: :shock:
V=$BF = 192 (<=191)

Code: Select all

Lb4106:
	LD A,$1F 
	SUB C 
Lb4109:
	JR NC, Lb4110 ; [$4110:16656]
Lb410B:
	CALL Lb4097 ; [16535]
	RST 08H 
.db	$10 ; RST8 Arg: Error Code:'H'
Lb4110:
	LD A,$BF 
	SUB B 
	RET NC 
Lb4114:
	CALL Lb4097 ; [16535]
	RST 08H 
.db	$1E ; RST8 Arg: Error Code:'V'
Lb4119:
Xavier ...on the Facebook groupe : "Zx81 France"(fr)
butchi
Posts: 38
Joined: Wed Jun 12, 2019 4:12 am

Re: Crippled Software

Post by butchi »

All eight pair got connected, as documented.
Now, can this software invert the hi-res display?
b
Attachments
apc.png
User avatar
GCHarder
Posts: 427
Joined: Sat Dec 14, 2013 7:46 pm

Re: Crippled Software

Post by GCHarder »

Horizontal coords are based on byte positions while vertical coords are based on pixel rows. The max horizontal pixel coord is 255.

More info about SHREB can be found here...

viewtopic.php?f=10&t=1441&p=15136&hilit=shreb#p15136

Regards;

Greg
butchi
Posts: 38
Joined: Wed Jun 12, 2019 4:12 am

Re: Crippled Software

Post by butchi »

GCHarder wrote: Fri Jun 28, 2019 9:13 pm Horizontal coords are based on byte positions while vertical coords are based on pixel rows. The max horizontal pixel coord is 255.

More info about SHREB can be found here...

viewtopic.php?f=10&t=1441&p=15136&hilit=shreb#p15136

Regards;

Greg
Greg,
Attached a searchable version that includes an SHREB upgrade. I found no mention of upgrading in the manual, so could SEHR.P be upgraded to v3.00, that is fully functional (w/F-SAVE/64-column) . . .
THX!
b
Attachments
SramHres.zip
(346.84 KiB) Downloaded 221 times
User avatar
GCHarder
Posts: 427
Joined: Sat Dec 14, 2013 7:46 pm

Re: Crippled Software

Post by GCHarder »

Here it is with SHREB version 3. I haven't actually tried to figure out how the use the program, but the screen shot shows that SHREB version 3 is working.

Regards;

Greg
Screen shot
Screen shot
SECore3.gif (2.94 KiB) Viewed 5551 times
Attachments
SECore3.zip
Program
(23.19 KiB) Downloaded 233 times
butchi
Posts: 38
Joined: Wed Jun 12, 2019 4:12 am

Re: Crippled Software

Post by butchi »

GCHarder wrote: Tue Jul 02, 2019 10:18 pm Here it is with SHREB version 3. I haven't actually tried to figure out how the use the program, but the screen shot shows that SHREB version 3 is working.

Regards;

Greg
Greg,
Please let us know when you figure out how to use Tom's SE, but 1st,
splash screen gets generated, then HANGs w/key press. :?:
Very finicky!
b
* ZERO STOP, no error get's trapped *
Attachments
bug.png
butchi
Posts: 38
Joined: Wed Jun 12, 2019 4:12 am

Re: Crippled Software

Post by butchi »

GCHarder wrote: Tue Jul 02, 2019 10:18 pm Here it is with SHREB version 3. I haven't actually tried to figure out how the use the program, but the screen shot shows that SHREB version 3 is working.

Regards;

Greg
Greg,
It appears that the P file format is very unstable when the file exceeds 16K. Here is an example where EO can generate only a valid wav file. Either a P or TZX format of the same program freezes. To launch this SHREB file, GOTO 200, then hit '9' and wait to see graphic.
b
Attachments
FAWR3.zip
(534.36 KiB) Downloaded 228 times
butchi
Posts: 38
Joined: Wed Jun 12, 2019 4:12 am

Re: Crippled Software

Post by butchi »

GCHarder wrote: Tue Jul 02, 2019 10:18 pm Here it is with SHREB version 3. I haven't actually tried to figure out how the use the program, but the screen shot shows that SHREB version 3 is working.

Regards;

Greg
Greg,
The SHREB version 3 appears to handle Tom's SE graphics, but not regular text. If you know the subtlety between 2 and 3, please enlighten :idea:
b
Attachments
SRAM3.png
User avatar
GCHarder
Posts: 427
Joined: Sat Dec 14, 2013 7:46 pm

Re: Crippled Software

Post by GCHarder »

This is a problem with ZXPand not the program. When generating standard ZX81 type characters SHREB expects to find the character patterns at $1E00, which are are no longer there because of the ZXPand overlay ROM. Pseudo-hi-res programs also have a similar problem.

Try loading the program with the /x option.

Regards;

Greg
butchi
Posts: 38
Joined: Wed Jun 12, 2019 4:12 am

Re: Crippled Software

Post by butchi »

GCHarder wrote: Mon Jul 08, 2019 10:13 pm This is a problem with ZXPand not the program. When generating standard ZX81 type characters SHREB expects to find the character patterns at $1E00, which are are no longer there because of the ZXPand overlay ROM. Pseudo-hi-res programs also have a similar problem.

Try loading the program with the /x option.

Regards;

Greg
Greg,
That was the trick, thx :idea:
b
* going on Holiday *
Attachments
SHREB3.png
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