Crippled Software*SOLVED*

Discussion about ZX80 / ZX81 Software
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XavSnap
Posts: 741
Joined: Sat May 10, 2008 4:23 pm

Re: Crippled Software

Post by XavSnap » Fri Jun 28, 2019 3:55 am

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:

butchi
Posts: 23
Joined: Wed Jun 12, 2019 4:12 am

Re: Crippled Software

Post by butchi » Fri Jun 28, 2019 5:57 am

All eight pair got connected, as documented.
Now, can this software invert the hi-res display?
b
Attachments
apc.png

User avatar
GCHarder
Posts: 235
Joined: Sat Dec 14, 2013 7:46 pm

Re: Crippled Software

Post by GCHarder » 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

butchi
Posts: 23
Joined: Wed Jun 12, 2019 4:12 am

Re: Crippled Software

Post by butchi » Mon Jul 01, 2019 7:45 pm

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 24 times

User avatar
GCHarder
Posts: 235
Joined: Sat Dec 14, 2013 7:46 pm

Re: Crippled Software

Post by GCHarder » 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
SECore3.gif
Screen shot
SECore3.gif (2.94 KiB) Viewed 685 times
Attachments
SECore3.zip
Program
(23.19 KiB) Downloaded 37 times

butchi
Posts: 23
Joined: Wed Jun 12, 2019 4:12 am

Re: Crippled Software

Post by butchi » Wed Jul 03, 2019 1:52 am

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: 23
Joined: Wed Jun 12, 2019 4:12 am

Re: Crippled Software

Post by butchi » Fri Jul 05, 2019 5:56 am

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 37 times

butchi
Posts: 23
Joined: Wed Jun 12, 2019 4:12 am

Re: Crippled Software

Post by butchi » Mon Jul 08, 2019 9:00 pm

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: 235
Joined: Sat Dec 14, 2013 7:46 pm

Re: Crippled Software

Post by GCHarder » 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

butchi
Posts: 23
Joined: Wed Jun 12, 2019 4:12 am

Re: Crippled Software

Post by butchi » Tue Jul 09, 2019 4:41 am

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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