I think this can be done nicely by checking for the 'End of Record' bit inside the subheader structure in each XA audio sector being played but I don't know of a way to extract the subheader during playback. yeah, one of the way is chk for EOR flag in subhader. by CdgetlocL command. another way, dun...

i did see ps2 mother boards , cdvd-drive has most coomon things in theory of working of cd-dvd drives. like DSP-fifo ic, mcu or "mecha con" based on sony's mcu , not hc05. and servo part. to interface w/ main cpu (IOP) cdvd-dsp uses more lines : 16bit bus, more addr lines, and real dma i/f...

in psio we convert 18,9/37.8khz to 44.1 , as ps1 used last one.., by software. also, some kind formula i saw from no$cash psx specs pages

no$cash , soory if i do pressure to you, the RESEARCH that you are making is incredible, i can only dream of it .... just sad if it will disappear in "secret" folders)))) PSIO can acts like AR. but to make it close to original can take much work. but basic things like - boot with custom me...

btw, i found funny string in your last ver 1.9 "CD ROM HC05 BIOS" - "Nocash High-level Clone".

no$cash: it's interesting, you always used ASM for you ps1 emulator? as i thought first your "HLL" of cd dirver is what you may use for pc emu))) anyway, under macro definition or HLL , i mean - make some kind information more close to how sub-cpu works. because when we can read pdf's of c...

oh, no$cash, it's super interesting to see how you research what inside of sub-cpu of cd-rom. in result you leave tons of information on your page. but it's hard to gather all pieces in one ))) especially asm code of motorolla. is any chance if you make in result some kind if macro or high level int...

to NO$CASH: "accordingly, the PSX can use only three of the available eight SRAM slots: One for currently pending INT1, one for undelivered INT1, and one for currently/incompletly received sector)." so sub-cpu holds space in RAM for only 3 sectors? then if no reading from Host (ps1) it ove...

can you tell more about question above: where you find many new things about "cd/help" "cd/emu"?

question about this info: INT10h Command Start (when INT10h requested via 1F801803h.Index0.Bit5) ..The upper bits however can be ORed with the lower bits (ie. Command Start INT10h and 1st Response INT3 would give INT13h). i didnt know about it - are you really saw such INT = 0x13 ? what game use suc...

Hi, no$cash i see you can know many interesting/useful information, like: cd/help: added notes on sub-cpu mainloop/response/priority/timing/queue/flags cd/emu: simplified 1st/2nd/3rd response slots (instead overcomplicated queue) debug: optional IRQx logging to tty window (plus detailed cdrom INTxx ...

also i've heard you did disassembled code from sub-cpu. hope you will add more interesting info...?))

actually , i have questions not only about buffer size))
i find many interesting things - your emulator (no$psx) can do, but i didnt find expalnations on cd-rom info page.
also i have questions about info from your pages too.

Hi No$cash, any chance talk w/ you, i sent email to you. i still have couple questions about cdrom emulation

this thing is something unbelievable for me, but if you understand what to do - you get real result. I'm impressed!

it's very interesting, as we can better understand how code works on sub-cpu.

i faced with such problems and it was caused of bad cxd2106.

any instruction of how it works or what is for, i mean - for example this web browse try connect to some server, that was made exceptionally for this software, but it can be not exist for nowadays.
or what plan if we get some hardware ?)))

theoretycally we can make device like modem, or even get modem from DC and use it))) dreamcast modem has simple interface and can be accessed by ps1 PIO port. maybe more useful if we make BroadBand adaptor or Ethernet adaptor, so from hardware side it looks not so complex - but what about software??...

if we add memcard emulator to psio - it 'll be same but for SD card)))