If you require an extension to XZX - Pro, please ask.I will probably give more
  priority to those extensions which have been requested most.:-)
     If you own code which emulates extra pieces of hardware,
       or you would like to offer such code, please
     do
       so.Please note that any such code, though
	 copyrighted to you,
	 may be modified and will be released under the XZX -
	 Pro license.Priorities:1 - must 2 - should 3 -
	 nice to have Features:3 * Direct floppy support under Linux 3 *
	 Emulate Currah /
	 uSpeech (tech info ?) 3 *Emulate Opus Discovery (tech info ?) 3
       * Emulate i8255 parallel interface chip 3 *
       Rewrite Screen renderer to be T -
       states accurate (needed for graphics - in - border effects)

     3 *Calculate audio at the end of each frame, not uppon each change
       Bugs :
       2 * Beta 128 's Magic Button doesn' t work in IM2 mode.
       2 * Spectrum + 3 : disks protected with the ALKATRAZ and SPEEDLOCK Disk
       Protection System
     do
         not load http:		//fdutils.linux.lu/disk-id.html
       floppycontrol-- resetnow 2 fdrawcmd recalibrate 0 fdrawcmd readid 0 rate = 2 need_seek track = 0 0: 0 1: 0 2: 0 3: 0->track 4: 0->head 5: 10->sector 6: 1->256 bps no disk change fdrawcmd readid 4 rate = 2 need_seek track = 0 0: 4->2 sided 1: 0 2: 0 3: 0 4: 0 5: 7 6: 1 fdrawcmd readid 4 rate = 2 need_seek track = 2 0: 4 1: 0 2: 0 3: 2->plain disk (with singlespaced tracks) 4: 0 5: c 6: 1 fdrawcmd readid 4 rate = 2 need_seek track = 78 repeat = 20 xzx: emul.c: 263: emulVsyncHandler: Assertion ` arg == Machine->tstatesPerFrame && Cpu.tstates >= arg ' failed.


http://www.wearmouth.demon.co.uk/if1_2.htm#L0DBB

http://zxvgs.yarek.com/

http://publib.boulder.ibm.com/doc_link/en_US/a_doc_lib/ultimdia/ultiprgd/toc.htm


        cc -DHAVE_CONFIG_H -I. -I. -I../.. -I./..     -g  -DDEBUG    -DFUNCPROTO
=7 -DNARROWPROTO -DSYSV -DSVR4  -c `test -f ' z80.c ' || echo '. / '`z80.c
cc-1548 cc: WARNING File = z80.c, Line = 152
  The transfer of control bypasses...

            ... the initialization of variable "additional" (declared at line
                      219).
                        goto header_error;
                        ^

(dbx) Process 1476624 (xzx) started
Xlib: connection to "erik:0.0" refused by server
Xlib: No protocol specified
(dbx) where
>  0 Msg(errorLevel = M_FATAL=5, fmt = 0x1008fe28 = "couldn\'t connect to X display", ... = <void>) ["/home/ozon5/eku/xzx-pro-4.5/src/util.c":263, 0x1000f37c]
   1 XwinInit(argcp = 0x7fff2ed4, argvp = 0x7fff2f24) ["/home/ozon5/eku/xzx-pro-4.5/src/ui/xwin.c":146, 0x100655f4]
   2 initEmulator(ac = 1, av = 0x7fff2f24) ["/home/ozon5/eku/xzx-pro-4.5/src/main.c":153, 0x1000e620]
   3 main(argc = 1, argv = 0x7fff2f24) ["/home/ozon5/eku/xzx-pro-4.5/src/main.c":107, 0x1000e518]
   4 __start() ["/xlv55/kudzu-apr12/work/irix/lib/libc/libc_n32_M4/csu/crt1text.s":177, 0x10009f68]

 263  if (CFGGET(quiet) == 0 || errorLevel == M_ERR || errorLevel == M_PERR || errorLevel == M_FATAL)

CFGGET(quiet) greift auf ResourceDataP zu, der erst spaeter initialisiert wird.


bash$ xzx -libDir .:../roms -sound on -soundBits 16 -soundSample 22050 -soundVolumeAy 100 -soundVolumeSp 50 -printerMode 0 -debug 512
xzx: debug: SND: opening audio device
xzx: debug: SND: sample rate      22050
xzx: debug: SND: sample bits      16
xzx: debug: SND: stereo           1
xzx: debug: SND: nonblocking      0
xzx: debug: SND: tstatesPerSample 158
xzx: debug: SND: samplesPerFrame  441
xzx: debug: SND: updateStep       3259
xzx: debug: SND: tstatesPerSample 158
xzx: debug: SND: samplesPerFrame  441
xzx: debug: SND: updateStep       3259
xzx: error: couldn' t write to audio device-- > reason:transfer size is not a multiple
	 of
# channels
     xzx: debug: SND:closing audio device