Search found 33 matches

by christian
Tue Aug 02, 2016 1:26 pm
Forum: 6502 assembly coding
Topic: Invert Carry
Replies: 14
Views: 4902

Re: Invert Carry

Hi, maybe something like this: CMP #$A4 ; (2 cycles) ROL ; Put C in b0 of ACC (2 cycles) EOR #$01 ; Invert b0 (2 cycles) ROR ; Put b0 in C (2 cycles) ROR $2F ; ROR C to $2F (2 cycles) Total 10 cycles Only Carry inverted, and ACC not modified (if i'm right)
by christian
Tue Jul 14, 2015 3:09 pm
Forum: Emulators
Topic: Oricutron: BUG with .tap files
Replies: 3
Views: 3022

Oricutron: BUG with .tap files

Hi Xeron, I think i've found 2 bugs in oricutron both located in tape.c file: First bug: in function tape_load_tap // TAP else if (memcmp(oric->tapebuf, "\x16\x16\x16", 3) == 0) { oric->rawtape = SDL_FALSE; // I give up trying to do anything clever. // Just allow an extra byte for broken tape images...
by christian
Tue Jun 23, 2015 9:53 pm
Forum: Operating systems
Topic: Jasmin ROM
Replies: 8
Views: 15273

Re: Jasmin ROM

I think the last version is FT-DOS 3.2, first versions were called T-DOS without the F (for Fast), at least T-DOS 2.26
by christian
Tue Apr 07, 2015 2:23 am
Forum: Emulators
Topic: Disk conversion - with XP
Replies: 37
Views: 12525

Re: Disk conversion - with XP

I'm not sure it depends on Sedoric's version because if I format a single sided Sedoric v3 disk with 17 sectors and 21 tracks, the second bitmap at T20 S03 is filled with $00, but 16 sectors and 24 tracks single sided fill the second bitmap with last available sector number and so on. My assumption ...
by christian
Tue Apr 07, 2015 12:07 am
Forum: Emulators
Topic: Disk conversion - with XP
Replies: 37
Views: 12525

Re: Disk conversion - with XP

I answer to my own question: Track #20 Sector #03 can be filled with $00 if the disk is single sided, so I must modify OricFS accordingly. I finally succeeded in formatting a Sedoric Disk with Euphoric, Oricutron can't format Sedoric disks which is a bit strange because it can format FT-Dos disks......
by christian
Mon Apr 06, 2015 10:55 pm
Forum: Emulators
Topic: Disk conversion - with XP
Replies: 37
Views: 12525

Re: Disk conversion - with XP

What I did: tap2dsk welcome.tap test.dsk old2mfm test.dsk oricutron -d disks/sedoric3.dsk (then insert test.dsk in drive B) Oricutron can read the dsk and can save a file on it OricFS can read the dsk but can't add file, so I think there is something else. The reason why OricFs can't add a file is t...
by christian
Mon Apr 06, 2015 8:35 pm
Forum: Emulators
Topic: Disk conversion - with XP
Replies: 37
Views: 12525

Re: Disk conversion - with XP

I found 2 different versions of tap2dsk, one in http://miniserve.defence-force.org/svn/ ... n/tap2dsk/ and one in http://miniserve.defence-force.org/svn/ ... c/tap2dsk/
I think the one in odsk directory is the last, right?
by christian
Mon Apr 06, 2015 8:26 pm
Forum: Emulators
Topic: Disk conversion - with XP
Replies: 37
Views: 12525

Re: Disk conversion - with XP

Until now, I can't raise the same error.
I will test with a disk created by tap2dsk and see if it's ok or not
by christian
Mon Apr 06, 2015 6:00 pm
Forum: Emulators
Topic: Disk conversion - with XP
Replies: 37
Views: 12525

Re: Disk conversion - with XP

The wrong sector may be Track #14 Sector #02 (first bitmap)... Can you tell your friend to type the following commands in the mounted filesystem: cat .h0t20s02?dump and post or check the result? Something like: 0000 FF 00 09 00 34 00 2A 11 04 AA 00 00 00 00 00 00 ....4.*......... 0010 00 00 00 00 00...
by christian
Mon Apr 06, 2015 5:40 pm
Forum: Emulators
Topic: Disk conversion - with XP
Replies: 37
Views: 12525

Re: Disk conversion - with XP

Can't find what means "read fault 10", if somebody can help. Anyway, Track #14 Sector #01 should not be modified by OricFS except if you modify the hidden file .source in the mounted filesystem. If you can't send the disk image, can you tell your friend to type the following commands in the mounted ...
by christian
Mon Apr 06, 2015 4:29 pm
Forum: Emulators
Topic: Disk conversion - with XP
Replies: 37
Views: 12525

Re: Disk conversion - with XP

Ok, I will check Sedoric manual to see what means "read fault 10".
Do you know if the disk image is a fresh one generated by OricFs or by another tool?

Maybe you can send me the disk image so I could see what's wrong.
by christian
Mon Apr 06, 2015 10:32 am
Forum: Emulators
Topic: Disk conversion - with XP
Replies: 37
Views: 12525

Re: Disk conversion - with XP

@Chema: can tell me
  • the OS version on the image disk (ie Sedoric 2 / FT-DOS 3.2,...)
  • the operations you do (was it adding and removing the same file, was it with the emulator or through OricFs,...).
  • The emulator you use
So i can try to reproduce this issue.
Thanks
by christian
Wed Apr 01, 2015 7:39 pm
Forum: Emulators
Topic: Disk conversion - with XP
Replies: 37
Views: 12525

Re: Disk conversion - with XP

Hi,

About FUSE driver, you can do all what you want even mount a web site or a database.

I posted a message last year in this topic about such a tool for Oric dsk images.
More information can be found here (in french)
by christian
Fri Mar 13, 2015 9:41 pm
Forum: BASIC programming
Topic: VirtualBasic and Oric
Replies: 4
Views: 4898

Re: VirtualBasic and Oric

And here is a link to Theoric #29 french magazine
by christian
Fri Mar 13, 2015 9:21 pm
Forum: BASIC programming
Topic: VirtualBasic and Oric
Replies: 4
Views: 4898

Re: VirtualBasic and Oric

Something like Magic Gosub was published in Theoric #29 pages 40-43. Here is a tap file with BASIC loader and test (Atmos version) The test part: 30 CLS 40 INPUT "Numero de menu ";N 50 ON N GOSUB "MENU1","MENU2","MENU3" 60 GOTO 40 100 ' "MENU1" 110 PRINT "Menu1":RETURN 120 ' "MENU2" 130 PRINT "Menu2...