Kempston mouse

Press RESET immediately, Konstantin! 30 Nov 01 20:46, Konstantin Lebedev wrote to All: KL> Gentlemen lamer ;), teach me how to work with a subject (I want to KL> in your player, and in general, support the rat in the withdrawal procedure KL> this device). Everything is in soap. 2KL: Why in soap? What I write here maybe someone else will read it. And you can read what I write in the soap yourself in ZX-FORMAT. ZX-Spectrum and mouse. On the topic of connecting a mouse to the Spectrum it was said on the pages of the magazine. These were advertising articles from St. Petersburg manufacturers and sellers of mouse inter- faces. I won't argue with any of them them, I just want to offer those who can hold a soldering iron in your hands and assemble this device yourself. First you need to answer the question: what exactly is Kempston Mouse Interface for? After all, some craftsmen manage to solder move the mouse to the Kempston joystick socket, others use AY-mouse. Why Kempston? Is Mouse Interface better? First of all, it should be noted that any torture of connecting the mouse to the socket joysticks are a mockery with the mouse. The mouse has one remarkable thing quality - in addition to the direction of movement it also reacts to the speed of this sa- possible movement, so the cursor on the screen does not move in proportion to the movement of theneck of the hand, i.e. when you move the mouse slowly, the cursor moves also slowly, when you move the mouse quickly, the cursor moves quickly. Thanks to this we can work a mouse is incomparably more convenient than a joystick com. The joystick is not able to react to movement speed, it only takes into account direction Therefore, in case of connection mouse into the joystick socket, regardless of depends on the speed at which you move move the mouse, the cursor will move with constant speed. And to move cursor from one edge of the screen to the other you may not have enough table space. Apparently, this drawback is absent in Option AY-mouse. But under AY-mouse it is adapted There are not enough programs. So why are we campaigning so hard? you for Kempston Mouse Interface? Answer banal: it's a matter of standardness. This the device was invented quite a long time ago, it is the same standard as Kempston Joystick or Sinclair Joystick and it is supported by proprietary programs, such some like Art Studio or Artist II. So why invent a bicycle and produce a lot of your own standards, if you it is better and more logical to use what is already invented, especially since for this variation ant there is already software support. Largest distribution Kempston Mouse Interface received in St. Petersburg, this and understandable, because it was made in St. Petersburgits Russian analogue. Along with already named- new Art Studio and Artist II branded Kempston Mouse support was found in Victory Road, Battle Command, Carrier Command. We quickly adapted to Kempston Mouse Interface programs F Commander v4.01, Instrument v2.01, DCU 2.32, etc... New programs began to be written taking into account the fact of the birth of Kempston Mouse Interface and mouse support are also available meet in FUT v2.01, ZXWORD v2.5m, ZxZip/ZxUnzip v1.02, Instrument v3.01, FPM v3.5, and others. Adapted for Kempston Mouse Interface and games, for example: Hero Quest, Dragon Spirit, Space Crusade, A New Whole Ball Game, The A Team 1 & 2, Operation Wolf, Operation Thunderbolt, World Cup Challenge, Gunsmoke, R-Type, Gemini Wing, 1943 The Battle Begin, Zombie, Armageddon Man, etc... New electronic magazine ZX-Format, which you are reading from the very first issue supports Kempston Mouse Interface. Having felt the wishes of friends, Slava Mednonogov inserted mouse support into his the new game UFO II, and after trying to play I dragged myself into it with the mouse immeasurably. What I'm talking about seems clear. Coli- The quality of mouse programs has steadily increased It turns out that almost all new St. Petersburg author's programs have mouse support ki. Branded programs in which control mouse control would also be logical to adaptare typed under Kempston Mouse Interface. What other arguments are needed for this particular device? It seems like there are enough arguments. Just try to sit in the mouse once - Noah Art Studio, after this you are unlikely to drag you back. You'll be mad looking at how the arrow crawls for so long ka, controlled by a joystick or buttons. While with the mouse everything is just fluttering... et. And you will be amazed to realize how much time you spent on simple movement according to the menus. So, almost all St. Petersburg programs mists support the Kempston Mou standard - se Interface. Therefore, we call on everyone users to solder this device to themselves, and all programmers - to support it, so that users don’t have to do it too often heat up the soldering iron when something appears like Sinclair Joystick Mouse or say ZX Lprint III Mouse... :-) This concludes the introductory part - Okay, let's go directly to the diagram. The author of the scheme is Michael Kondraty- ev, the circuit was developed after studying drivers for Art Studio and Artist programs. The original version contained 11 housings owls, this was due to the fact that the author used the most available microcircuits from those that were at hand. In the future the number of chips was reduced to 8'mi. For some time the scheme was commercial a commercial product, the rights were not hers transferred to Sergei Zonov. Last yearSergey Zonov allowed its distribution, after which the Kempston Mouse Interface circuit was published on the Fi-electronic network doNet. Most often as a manipulator ordinary gray passive is used mouse from Search. At the minimum price it works quite well. Although those who wish can also use branded passive mice. In the complete absence of vision in the area Most passive mice can be used and active ones, however, they will have to be a little Let's dig deeper (see notes to the diagram). So, stock up on a pencil or a printer rom and look carefully: ========================================================= Kempston Mouse Interface Schematic: DD1 DD5 5┌──┬──┬─┐ 6 2┌──┬──┬─┐18 D0║ ┌────oCa│CT│0├────────┤D1│|>│1├─────╢ Xb ─┴─ 15├──┤ │ │11 4│ │ │ │16 D1║ ──┬──────/C │ │1├────────┤D2│ │2├─────╢ Xa│ 10│ │ │ │14 6│ │ │ │14 D2║ ───┬─────┤U/D │2├────────┤D3│ │3├─────╢ ││ 9├──┤ │ │ 2 8│ │ │ │12 D3║ ││ ┌───┤R │ │3├────────┤D4│ │4├─────╢ ││ │ 1│ │ │ │ 11│ │ │ │ 9 D4║ ││ ├───┤S │ │ │ ┌─────┤D5│ │5├─────╢ ││─┴─ 4│ │ │ │ │ 13│ │ │ │ 7 D5║ ││ ──┤0 │ │ │ │┌────┤D6│ │6├─────╢ ││ 12│ │ │ │ ││ 15│ │ │ │ 5 D6║ ││ ──┤1 │ │ │ ││┌───┤D7│ │7├─────╢ ││ 13│ │ │ │ │││ 17│ │ │ │ 3 D7║ ││ ──┤2 │ │ │ │││┌──┤D8│ │8├─────╢ ││ 3│ │ ├─┤ 7││││19├──┤ │ │ ║ ││ ──┤3 │ │Co─┐││││┌─oE2│ │ │ ║ ││ └──┴──┴─┘ ││││││1│ │ │ │ ║ ││ ┌────────────┘││││├─oE1│ │ │ ║ ││ │ DD2 │││││ └──┴──┴─┘ ║ ││ │ 5┌──┬──┬─┐ 6│││││ /XCS ║ ││ └──oCa│CT│0├──┘│││└──── ║ ││ 15├──┤ │ │11 │││ ║ └──────/C │ │1├───┘││ ║ │ 10│ │ │ │14 ││ ║ └─────┤U/D │2├────┘│ ║ 9├──┤ │ │ 2 │ ║ ┌───┤R │ │3├─────┘ ║ │ 1│ │ │ │ ║ ├───┤S │ │ │ ║ ─┴─ 4│ │ │ │ ║ ──┤0 │ │ │ ║ 12│ │ │ │ ║ ──┤1 │ │ │ ║ 13│ │ │ │ ║ ──┤2 │ │ │ ║ 3│ │ ├─┤ 7 ║ ──┤3 │ │Co── ║ └──┴──┴─┘ ║ ║ DD3 DD6 ║ 5┌──┬──┬─┐ 6 2┌──┬──┬─┐18 D0║ ┌────oCa│CT│0├────────┤D1│|>│1├─────╢ Ya ─┴─ 15├──┤ │ │11 4│ │ │ │16 D1║ ──┬──────/C │ │1├────────┤D2│ │2├─────╢ Yb│ 10│ │ │ │14 6│ │ │ │14 D2║ ───┬─────┤U/D │2├────────┤D3│ │3├─────╢ ││ 9├──┤ │ │ 2 8│ │ │ │12 D3║ ││ ┌───┤R │ │3├────────┤D4│ │4├─────╢ ││ │ 1│ │ │ │ 11│ │ │ │ 9 D4║ ││ ├───┤S │ │ │ ┌─────┤D5│ │5├─────╢ ││─┴─ 4│ │ │ │ │ 13│ │ │ │ 7 D5║ ││ ──┤0 │ │ │ │┌────┤D6│ │6├─────╢ ││ 12│ │ │ │ ││ 15│ │ │ │ 5 D6║ ││ ──┤1 │ │ │ ││┌───┤D7│ │7├─────╢ ││ 13│ │ │ │ │││ 17│ │ │ │ 3 D7║ ││ ──┤2 │ │ │ │││┌──┤D8│ │8├─────╢ ││ 3│ │ ├─┤ 7││││19├──┤ │ │ ║ ││ ──┤3 │ │Co─┐││││┌─oE2│ │ │ ║ ││ └──┴──┴─┘ ││││││1│ │ │ │ ║ ││ ┌─────────────┘││││├─oE1│ │ │ ║ ││ │ DD4 │││││ └──┴──┴─┘ ║ ││ │ 5┌──┬──┬─┐ 6│││││ /YCS ║ ││ └───oCa│CT│0├──┘│││└────── ║ ││ 15├──┤ │ │11 │││ ║ └──────/C │ │1├───┘││ ╔══════════════╝ │ 10│ │ │ │14 ││ ║ └─────┤U/D │2├────┘│ ║ 9├──┤ │ │ 2 │ ║ ┌───┤R │ │3├─────┘ ║ │ 1│ │ │ │ ║ ├───┤S │ │ │ ║ ─┴─ 4│ │ │ │ ║ ──┤0 │ │ │ ║ 12│ │ │ │ ║ ──┤1 │ │ │ ║ 13│ │ │ │ ║ ──┤2 │ │ │ ║ 3│ │ ├─┤ 7 ║ ──┤3 │ │Co── ║ └──┴──┴─┘ ║ ╔════╝ DD7.2 ║ DD8 RIGHB 5┌─┬──┐6 D0║A10 1┌─┬──┬─┐15 ─────────┤D│|>├─────╫─────┤1│DC│0o── 4│ │ │ ║A8 2│ │ │ │14 ┌──oE│ │ ╟─────┤2│ │1o── │ └─┴──┘ ║A7 3│ │ │ │13 │ DD7.3 ╟─────┤4│ │2o── LEFTB │ 9┌─┬──┐8 D1║/RD 5├─┤ │ │12 ─────────┤D│|>├─────╫─────o&│ │3o── │10│ │ │ ║A0 6│ │ │ │11 /BCS ├──oE│ │ ╟─────┤ │ │4o─────── │ └─┴──┘ ║ 4│ │ │ │10 │ DD7.4 ║ ┌──oS│ │5o── MIDLB │12┌─┬──┐11 D2║ │ │ │ │ │ 9 /XCS ─────────┤D│|>├─────╢ │ │ │ │6o─────── │13│ │ │ ║ │ │ │ │ │ 7 /YCS ├──oE│ │ ║ │ │ │ │7o─────── │ └─┴──┘ ║ │ └─┴──┴─┘ │ ║ └────────────┐ │ /BCS ║ DD7.1 │ └──────── ║/IORQ 2┌─┬──┐3 │ ╟───────┤D│|>├──┘ DD1..DD4 - К561ИЕ11 ║A5 1│ │ │ DD5, DD6 - К555АП5 ╟───────oE│ │ DD7 - К155ЛП8 ║ └─┴──┘ DD8 - К555ИД7 (c) 1994 Michael Kondratyev ========================================= Пpимечания: - жиpной линией обозначена шина Spectrum; - на мышь идут следующие сигналы: Xa, Xb, Ya, Yb, RIGHTB, MIDLB, LEFTB, +5V, GND; - /BCS, /XCS, /YCS - внутpенние сигналы схемы, соединяются с одноименными паp- ными на схеме; - схема пpиведена для мыши пасивного типа (мышь для "Поиска" ММП-9B), для дpугих необходимо вывести сигналы Xa, Xb и Ya, Yb, котоpые беpутся с оптопаp после цепочки тpанзистоp-тpиггеp Шмидта; - в компьютеpе тpебуется обеспечить бло- киpовку поpта 0DFh;- it is possible to replace the decryption scheme (DD7.1, DD8) on the type 556PT4(PT11), remaining free connection move can be used for blocking ports ========================================================= If you have any suggestions/complaints, please dew/ideas, then you can contact auto- rom Michael Kondratyev's scheme: 2:5030/362.1@FidoNet [...to be continued...to be...]

Press RESET immediately, Konstantin! 30 Nov 01 20:46, Konstantin Lebedev wrote to All: [...continued...about...Kempston...mouse...] So, now let’s explain how it works use Kempston Mouse Interface program mistu. Nothing difficult to understand expected, since the interface is quite simple and clear. There are three ports, here their addresses: #FADF, #FBDF, #FFDF; The width of each is 8 bits, i.e. byte. #FADF - port of buttons with symbols in it are the least significant three bits: 0 bit - state of the right button; 1 bit - left button state; 2 bits - state of the middle button. When the buttons are not pressed, all bits are `1'. When you press the button, the corresponding bit is set to `0'. According to ancient tradition, the left button is used uses as a choice (Fire), the right one - as Cancel. Middle button accepted use for additional functions. #FBDF - X-coordinate port; #FFDF - Y-coordinate port. As the mouse moves the values in the ports change, and also and cyclically, i.e. when #FF is reached and further increase they become again zero and grow further, again to #FF. When moving in the other direction the picture is similar gical, only changes occur in the environment in the opposite direction. Present this case This picture will help: y^. │. │. │2 │1 │012... ┼──────────> x Thus, it is necessary to read the signport values, and the difference between the current and the previous value is determined by Mouse movement control. If very precise manipulation is necessary, tion driver is written with this in mind, and moving the arrow to one point produces indicated when the value changes, read- go from the port for 2, 3, 5, or more units. Recently, smarter has become fashionable driver, which at the beginning waits for a click on button, and the first button pressed on the mouse becomes (for the driver) left. This is from- is carried only to the two outer buttons, The middle button is also the middle button in Africa. This is useful for people who are accustomed to holding mouse in the left hand, or in case if whether someone often stepped on your mouse and one of her buttons works worse than the rest. Such a driver is considered good in a quiet tone. And if you noticed, that's exactly it The ZX-Format driver arrives. Check the operation of the newly assembled interface can be done directly from Basic by doing PRINT IN from ports: 64479 - X, 65503 - Y - when moving mouse values should change cyclically ki. When reading from port 64423 - Fire the three lowest bits should click when pressing buttons. And finally - an example of the Kempston driver Mouse used in ZX-Format: ;MOUSE DRIVER WITH FIRE BUTTON AUTOCONFIG ;(C) Andrey Rachkin'95 JR MDRV DIRECTZ DEFB 0 ;FIRE DEFB 0 ;UP DEFB 0 ;DOWN DEFB 0 ;RIGHT DEFB 0 ;LEFT DEFB 0 ;CANCEL MCOORD DEFW 0 ;LAST CURSOR COORDS ;IN PIXELZ MPORTS DEFW 0 ;LAST READED MAUSY COORDS NONDEF AND 3 ;HERE COMEZ BUTTONZ ;CONTROL IF FIRE BUTON ;NOT DEFINED JR Z,MDRV4 ;IF NONE BUTTON ;PUSHED CP 1 JR Z,NONDEF_ XOR A LD (MDRV3+2),A LD A,5 LD (MDRV2+2),A NONDEF_ LD HL,0 LD (MDRV1),HL POP IX ; ***** MAIN PROC OF MOUSEDRIVER ***** MDRV PUSH IX LD HL,DIRECTZ PUSH HL POP IX XOR A LD (HL),A ;CLEARING INC HL ;OF LD (HL),A ;DIRECTZ INC HL ;BUFER LD (HL),A INC HL LD (HL),A INC HL LD (HL),A INC HL LD (HL),A INC HL LD BC,#FADF ;BUTTONZ CONTROL IN A,(C) ;READING FROM PORT ;OF BUTTONS CPL MDRV1 JR NONDEF ;JR UNTIL FIRE ;BUTTON NOT DEFINED RRA MDRV2 RL (IX+0) ;FIRE RRA MDRV3 RL (IX+5) ;CANCEL ; ***** COORDS CONTROL ***** MDRV4 LD HL,(MCOORD) ;FORM LAST ;CURSOR COORDS LD DE,(MPORTS) ;FROM LAST ;READED MOUSE ;COORDS LD BC,#FBDF IN A,(C) ;READING FROM ;PORT X-COORD (0-#FF) LD (MPORTS),A SUB E JR Z,MDRV9 JP P,MDRV6 LD (IX+4),1 ;MOVE LEFT ADD A,L JR C,MDRV5 XOR A ;MIN X-COORD MDRV5 LD L,A JR MDRV9 MDRV6 ADD A,L LD (IX+3),1 ;MOVE RIGHT JR C,MDRV7 CP #FE ;MAX X-COORD JR C,MDRV8 MDRV7 LD A,#FE ;MAX X-COORD MDRV8 LD L,A MDRV9 LD B,#FF IN A,(C) ;READING FROM ;PORT Y-COORD (0-#FF) LD (MPORTS+1),A SUB D JR Z,MDRV14 NEG JP P,MDRV11 LD (IX+1),1 ;MOVE UP ADD A,H JR C,MDRV10 XOR A ;MIN Y-COORD MDRV10 LD H,A JR MDRV14 MDRV11 ADD A,H LD (IX+2),1 ;MOVE DOWN JR C,MDRV12 CP #BF ;MAX Y-COORD JR C,MDRV13 MDRV12 LD A,#BF ;MAX Y-COORD MDRV13 LD H,A MDRV14 LD (MCOORD),HL ;NEW CURSOR ;POSITION ;IN PIXELZ POP IX RET ; ***** DRIVER END *****