-
edge connector... breadboard / external romso i purchased a breadboard on a edge connector.. to experiment with .. my first task to make a external rom boot (32k eeprom) so i think i got every…
... task to make a external rom boot (32k eeprom) so ... : 5 volt to romcs to disable onboard rom : using a 74hc32n as ... rd to pin 20 of rom (to make sure they are ... a bank selector (the rom file was burn on both ... of the actual rom (which was a diagnostic rom).. so my ... -
NMI Routine and Restarts in a new 128K ROMI'm presently engaged in creating AGD 5 with the intention of making it a pair of 16K ROMs for the 128K/+2. I'm fairly sure that the vast majority o…
... my use of the RST slots, especially RST 8. I know there ... I'm open to suggestions. RST 0, 16 and 56 are ... grabs. RST 8 wasn't supported in the original ROM 0 as ... the delay routine in RST 0 overran ... -
ZX48k terminal...Hello everybody, I thought someone might help me. I connect my good old ZX48k to my PC via serial (IF1) link, and I was trying to write a little term…
... you were using "code &38" to refer to the RS232 ... code for a Version 2 ROM could look this if you ...
ld (HD_11),hl
rst 08
db &32 ... -
New SPIN 0.3a releaseHi all, here's the next version - mainly a maintenance release, with new bugs :) Here's what's new: V0.3a - Bugs and more tapes -------------------…
... :38, aowen wrote:
It's actually there in the original ROM ... />
original
--------
EF RST #28
EF15 DEFW #15EF ... LD A,#20
D7 RST #10
patched
Run BASIC program by R. USR xxxxxGuys, please help. Suppose I have BASIC program in my Spectrum 48K starting with line 10. I'd like to start it by RANDOMIZE USR xxxxx. Which paramete…
... -04 12:38, Dr BEEP wrote:
RUN goes to ROM-routine ... />
LD A,65
RST 16 ; PRINT A
JP ...Run BASIC program by R. USR xxxxxGuys, please help. Suppose I have BASIC program in my Spectrum 48K starting with line 10. I'd like to start it by RANDOMIZE USR xxxxx. Which paramete…
... -04 12:38, Dr BEEP wrote:
RUN goes to ROM-routine ... />
LD A,65
RST 16 ; PRINT A
JP ...I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... bug or not. The command "RST 38H" is the problem. Simply ... PC = the decimal value of 38? Or am I using the ... does = 38 decimal then it seems that the speccy 48 rom I ... to memory address 38, which has the opcode RST 38H, thus making ...I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... cannot differentiate between 38H and 38, cannot understand binary, cannot convert ... web.
If 38H = 38 (which I assume it does ... 0038 in the ROM image, there is another RST 38H command - thus ...How to detect 48k modeHow can you detect if a 128k machine is in 48k mode (from an emulation point of view, not via BASIC or machine code)? Checking the current rom? But …
... , the BASIC statement SPECTRUM does disable paging.
Two notable ... (tests a byte in the ROM, very ugly IMHO).
38 ]Competition: Sadistick routine on Spectrum ROMMy vote goes to BEEPER at #03B5 Let's ear you pick! :) And a great BOHHHHHHHHHHHHH to Dr Ian Logan & Dr Frank O'Hara for their description about the…
... BC,duration
CALL 2D2B ; ROM routine to put value of ... of the calculator stack
RST 28 ; use the floating point ... /> DEFB 05 ; division
DEFB 38 ; end-calc
LD A ... ,note
CALL 2D28 ; ROM routine to put value of ...Calling ROM routinesFirstly, sorry if this is the wrong forum to post this in, but I wasn?t quite sure under which heading is best fitted. I?m trying to figure out how…
... /> "Rubber Numbers in the Spectrum ROM" - a very helpful article.
CALL $2D28 ; STACK-A
RST 28H ; enter calculator
DEFB ... $28 ; sqr
DEFB $38 ; end-calc result is still ...Multiface ResidentI'm thinking about adapting some existing code to be Multiface "resident"... but being perfectly honest I'm not quite sure where to start. Any top t…
...
ld (hl),199 ;rst 0
;RET to ... in a,(95)'
rst 0; and reset
[/code ...
You might want to disable/enable interrupts as well (DI ... if your code uses ROM routines you'll have ... or copy/modify the ROM routine into the RAM ...Disassemblers and RSTsI think this is a longshot, but... is anybody aware of a disassembler that handles the Interface One RSTs? e.g. RST $10 DEFW $0020. Cheers
... version only suitable for IF1 Rom v1
;
; ... ;
org $f900
rst $08 ; f900 cf $0bts
l_f909: rst $10 ; f909 d7 $0bts< ... call $1d43 ; f994 cd 38 1d $11ts
ld ... jr c, l_fa4e ; fa41 38 0b $0c/$07ts
...+2b not working with interface1i was trying to transfer some of my programs from my microdrive carts onto tapes last night, but found both my 48k and my toast rack 128K have decide…
... building a little circuit to disable IF1 until its in 48k ... handled there. If via RST #08 in 48k ROM, it will be ...Multiple ROMsI'm mulling over the idea of a bit of hardware with a ROM in it, which has some commands that can be called by BASIC (like the old wafadrive star com…
... to page its own ROM in (even when PC ... all of these uses RST 8 for all functionality, ... ROM commands (eg for Microdrive access), you can temporarily disable ... the divIDE+ etc ROM, do that and ... then re-enable the ROM.
So ...Look what I got!Look what I just got in the post: [url]http://www.alioth.net/tmp/W5100.jpg[/url] But, please... don't hold your breath :-) Coming to an edge connec…
... /> [QUOTE=Winston;223306]
On RST #8 traps (or similar), they ... having a hardware jumper to disable them should be straightforward enough ... non-divide general rom and a DivIDE specific rom. Nice.
Spectrum Ethernet update...in which a toastrack 128K machine prods a machine outside of my LAN for the first time. [url]http://spectrum.alioth.net/doc/index.php/Current_eve…
... RST 8 trap and subsequent return to the main ROM, ... compatibility with other paged rom devices, specifically mass storage ... a jumper) trap enable/disable. For example, if using ... ethernet board gets the RST 8 or whether the ... downstream device gets the RST 8. So a ...divIDE & Joystick interface / other peripheralsHi, Anyone on here with a divIDE, managed to get the divIDE to play nice with a Kempston joystick interface; specifically - a RAM Turbo joystick int…
... despite both having a ROM. When the Spectranet ROM is paged in ... through port from paging a ROM, because the interface on the ... initialize (followed by the Spectrum ROM). The Spectranet CPLD keeps some ... switch on the Spectranet to disable all RST 8 traps. For use ...DivIDE QuestionHi all, I've been trying to work out how the DivIDE works and after reading and re-reading the DivIDE programming model document by Zilog I think it…
... use the Spectrum ROM functions to do the display (RST 16 etc ... ) DivIDE connect external memory (8kB rom + 8kB ram)
(at ... adress 102(#66) in DivIDE rom you must write instrustion RET ... /> - If you need return with disable interrupt then jump to adress ...The Goldfinch updates thread([url=http://www.worldofspectrum.org/forums/showthread.php?t=25034]original announcement thread here[/url] - I figured it was worth starting a new to…
... routines at adress #0,#8,#38,#66,#4C6 and #562 (area ... MB02 RAM PAGE WITH 48 ROM
;
IN A,(63 ... always read only. GASWARE must disable read data blocks from TAP ...Spin Assembler DirectivesLeading on from [URL="http://www.worldofspectrum.org/forums/showpost.php?p=402514&postcount=65"]jp's recent post in Spin 0.7 Public Testing thread[/U…
... +($FF00F3 shl 8)),
(S: 'DISABLE'; I: 25), (S: 'DJNZ'; I ... '; I: 37), (S: 'FCC'; I: 38),
(S: 'FCW'; I: 39 ... : 89+($FFED67 shl 8)), (S: 'RST'; I: 90),
(S: 'SBC ...Spin Assembler DirectivesLeading on from [URL="http://www.worldofspectrum.org/forums/showpost.php?p=402514&postcount=65"]jp's recent post in Spin 0.7 Public Testing thread[/U…
... +($FF00F3 shl 8)),
(S: 'DISABLE'; I: 25), (S: 'DJNZ'; I ... '; I: 37), (S: 'FCC'; I: 38),
(S: 'FCW'; I: 39 ... : 89+($FFED67 shl 8)), (S: 'RST'; I: 90),
(S: 'SBC ...MOD calculator function?How do I for example, do LET a=(MOD n,9). I can do it a long winded way using cross-addition until the answer is a single digit. So 13763 MOD 9 wou…
... MOD would be
RST 28H ;; FP-CALC
DEFB ... $02 ;;delete ;MOD.
DEFB $38 ;;end-calc
DIV ... .
As an experimental ROM, modify OR to do the ...FMV on +3eOK, so about 6 months ago i posted here that i got full motion video on +3e, with a bunch of scr files called passion. I added the glider rider music…
... +3e with just DivIDE, diven3eE rom (maybe this is the culprit ... not ticked. The +3e rom is V1.38. On my real hardware ... of code in the upper rom in the 128K editor triggering ... the DIVIDE. Wish someone would disable these trdos traps. I'm ...Minor Update to Gasman's Midi2BEEPDon't know whether this is worthy an announcement, but for those of you who enjoyed Gasman's midi2BEEP utility, a new variant has been made called mi…
... yes, I find the whole rom calculation routines something of a ... of duration (5/255)
RST $28 ; use the floating ... on the stack
DEFB $38 ; end-calc
... code to tell the rom routine to do a ... beep routine in the rom already seems to make ...Beepola v1.01A new version of Beepoa, v1.01, is now available for download from:- [URL]http://freestuff.grok.co.uk/beepola/Beepola_v1.01.00.zip[/URL] (650KiB) …
... onto Calc Stack via Rom routine
RST $28 ; use the floating ... /> DEFB $02; Delete
DEFB $38 ; end-calc
; ... /> DEFB $03; subtract
DEFB $38 ; end-calc
; Currect ...Programming flash eprom on DIVIDE+Can you test it on DIVIDE PLUS ? [url]http://velesoft.speccy.cz/other/flasher-divide-plus.zip[/url] (This flash utility is WINSTON's flasher for dia…
... use TAP file fith rom installer + rom image(s). Its ... XOR 32 ;disable writing in low 16kB ram(rom emulation)
... OUT (23),A
RST 0 ... OUT 23,64+24 disable any divide system and set ... of installation code with BS-ROM 140:
[url ...Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... Spectrum ROM, floating point routines are called using the RST 28 ... br />
[code]
RST 28H ;; FP-CALC add step ... DEFB $02 ;;delete .
DEFB $38 ;;end-calc[/code]
