CMOS in SMUC

Hayushki, Dmitry! 08-09-98 at 04:16 someone Dmitry Lomov wrote 2 All on the topic 'CMOS in SMUC'. DL> Would the respected ALL tell me the port addresses in the subject and DL> ways to access them? best to climb through RST #08, brakes only... anyway, here you go, catch it -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- 89h (R8time) - read/write time from CMOS (RST 8: DB #89). In register D the bits set: 7 - (1) write down the time/date value (0) read the time/date value. 6 - (1) read into buffer (only if bit 7=0. (see bit 5). 5 - (1) direct read (6 bytes of data from CMOS). (0) read in ASCII format. 0 - (1) work with date (0) work with time. In addition, in HL - the buffer address (if you count tapping occurs in the buffer), at 5 and 2 CPU banks. Register E contains the format reading: low-order 5 bits - symbol divider (+32!!!) (VS: for example for sym- ox ":" should be 26), bits 7,6 and 5 allow clock output accordingly, minutes and seconds, or to display the date: bit 7 - output day of the week bit 6 - put "0" in front of the number bit 5 - display the month as a word and before add "19" for the year. The function returns data either to a buffer, (as an ASCII string or 6 bytes: seconds, minutes, hours, date, month, year), or in registers: C - seconds/date B - minutes/month E - hours/yearL - day of the week Values are set in these registers to change the time/date. out: CY=error (no CMOS chip). VS: MOA succinctly noted that the data can be returned to the buffer (in ASC format.) But if you do this, you will notice that you always come back alone and same meanings! In fact, time in ASCII is stored somewhere in the 8th bank, from where it is returned to you. And updating Only available when Reset is initialized or Magic!!! I learned how to bypass this feature thus: first time is called in registers (at this moment the data in buffer are also updated), after which I’m putting my time back into my buffer. And for this since this is true time. (Exactly like this This is how I poll the time in BBS 3.20). Thus, the challenge of time occurs dit in 2 passes: first to registers (via RST 8), then directly to the buffer (again via RST 8). For this MOA you need hit you over the head too ;) -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- and here is the direct crawl: ; ***proc ; parm: --- ; value : cf==busy ; nc==read, hl=&bf[6] ; modify: af bc de hl _rtc_try_read ld de, #3FF3 ;in ld bc, #3FF0 ;out ld (rtc_tryrd_sp+1), sp ld hl, rtc_tryrd_fin push hl push de push bc ld hl, rtc_tryrd_inc push hl push de push bc push hlpush de push bc push hl push de push bc ld hl, rtc_tryrd_add2 push hl push de push bc push hl push de push bc push hl push de push bc ld hl, rtc_tryrd_tst push hl push de push bc ld a, #0A ld hl, rtc_tryrd_bf ld e, 0 ld bc, #DFBA di jp #3D30 rtc_tryrd_bf ds 7 rtc_tryrd_tst add a, a ld a, e jp nc, #3D30 ei rtc_tryrd_sp ld sp, 0 ret rtc_tryrd_fin ei ld (hl), a ret rtc_tryrd_add2 ld (hl), a inc hl ld a, 2 add a, e ld e, a jp #3D30 rtc_tryrd_inc ld (hl), a inc hl inc e ld a, e jp #3D30 ; *** end proc Hу вот и все *MAS* с кувалдой P.S. какое счастье что я перед уходом на работу прочитал это письмо! Ты же не думаешь что мой архив со всяким мусором на работе храниться? ;-)))))

Hayushki, Dmitry! Once in morning 12-09-98 02:29:00 somebody Dmitry Lomov has written to Aleksandr Majorov about 'CMOS in SMUC'. [ ] AM>> If you really need it, I can trace the process over the weekend AM>> records in kmos and report... DL> haaachu! I have an idea - to make a device, I’m thinking about how to connect the clock there. This means that experiments on live emulators have shown... ;-) So this means: 7th bit #FFBA = 0 #DFBA record - register selection, read - register contents 7th bit #FFBA = 1 #DFBA write - write to a register register, reading - not used! Now the jokes: before _each_ IN (C) or OUT (C) command is executed this is the rulez: LD B,20 DJNZ$ i.e. the delay is somewhere around 260...280 cycles!!! Next - whoever read the document on SMAK knows what to choose IBM peripheral port address bits A8 A9 are set through 2 and 3 bits #FFBA. And now the joke is _any_ reference to the clock (and I suspect as for the screw!) changes the contents of this register completely! The funny thing is that this port is read-only! And in the 8th bank at address #DFF0 a copy of the latter is stored output to this port. And by default #77 is issued to this port, i.e. access to COM1 (#03F8). So, a phrase from the SMAK book "The controller decoding scheme allows you to choose any I/O port on the IBM PC XT peripheral board,connected to SMUC" not entirely true... If you select, for example, COM2, then any shadow call with some degree of probability will switch SMAK back to COM1... ATTENTION!!! This is true for the Scorp emulator!!! I do not guarantee that _all_ of the above (except for port addresses) matches reality!!! Well that's it *MAS* with a sledgehammer

Hi Michael! DL>> as I understand it, there is one port #DFBA, addressed in tr-dos DL>> writing there is the register number, reading is its contents. DL>> correct? - then what about writing to registers? MK> this is the same, only with a different high bit in 0xffba. So, did I understand correctly: (all through trdos...) READ OUT (#FFBA),%01110001 OUT (#DFBA),REG_NUMBER IN A,(#DFBA); contents WRITE OUT (#FFBA),%01110001 OUT (#DFBA),REG_NUMBER OUT (#FFBA),%11110001 OUT (#DFBA),NEW_REG_DATA All the best. Dmitry aka -=LD=- / X-TRADE GROUP.

Hello Dmitry! Quoting your msg of [hamster chew] to All: DL> Wouldn't dear ALL tell me the port addresses in the subject and DL> ways to access them? But here there is a little. Access to the CMOS clock chip in the SMUC controller. #DFBA - address/data register #FFBA bit7 - recording resolution, mask #77. _In the TR-DOS input/output space!_ To read from the register: - write the number of the required register to port #DFBA; - read the meaning from it. To write to the register: - write the number of the required register to port #DFBA; - allow writing to the microcircuit registers, for this set bit 7 in port #FFBA (mask #77), for example like this: LD A,#77 SET 7,A LD BC,#FFBA OUT(C),A - write the new register value to port #DFBA. - disable writing to the microcircuit registers, to do this write number #77 in port #FFBA. Addresses of procedures in trdos ROM: #3FF0 OUT (C),A RET #3FF3 IN A,(C) RET !NB: Climbing in the so-called "general purpose lake" - to the garden! This is where the shadow guy likes to stuff his bullshit. And this is how the shadow man himself does it. Throw everything here broke in By the way, the brakes there are a huge bucket. ;read register. ;in :B - register ;out:A - value RCMOS PUSH BC PUSH BC L1F5B LD BC,#FFBA LD A,(LDFF0) AND #7FLD (LDFF0),A CALL P_OUT POP AF LD B,#DF CALL P_OUT LD B,#DF CALL P__IN POP BC RET ;write register . ;in: B - p ; A - snowflake WCMOS PUSH BC PUSH AF PUSH BC LD BC,#FFBA LD A,(LDFF0) AND #7F CALL P_OUT POP AF LD B,#DF CALL P_OUT LD B,#FF LD A,(LDFF0) OR #8 CALL P_OUT POP AF LD B,#DF CALL P_OUT LD B,#FF LD A,(LDFF0) AND #7F LD (LDFF0),A CALL P_OUT POP BC RET P_OUT CALL PAUSE OUT (C),A RET P__IN CALL PAUSE IN A,(C) RET PAUSE PUSH BC LD B,#14 L201F DJNZ L201F POP BC RET LDFF0 DEFB #77; ps Subjects to video uploads in this category: === Cut === РЕГИСТР А (review) ──────────────────────────── 7 UIP "1" on the back of the phone, yes See more photos and часа- ми pаботать нельзя, нyжно подождать некотоpое вpемя. === Cut === WBR, Jason.