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SPECTRUM.ENG
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1987-04-22
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ZX-SPECTRUM EMULATOR V1.0
=========================
1. EINLEITUNG
-------------
WOZU a ZX-SPECTRUM EMULATOR? - Now, who this COMPUTER HOCHSTENS wards Name
after knows, can OBIGE Question BERECHTIGT place. That at least just as
ERFOLGREICHE NACHFOLGER of the LEGENDAREN ZX-81 is a 8-BIT Computer with 48 KB
Main memory, 256 X 192 PIXEL GRAFIKSCHIRM in 16 Colour (MAX. 2 Colour PRO
ZEICHENPOSITION) and PIEPS-SOUND. Hopeless VERALTET so for one
VERWOHNTEN ST-USER.
Who but, how that AUTOR, SEINERZEIT his first PROGRAMMIERFRUSTRATIONEN on
ZX-81 ERLEBTE, and then hopeful on he who ZX-SPECTRUM WECHSELTE, getting
this Appliance for always WOHLWOLLEND in Memory BEHALTEN. UMFANGREICHES
BASIC, NAHEZU UNERSCHOPFLICHER Save (for ZX-81 VERHALTNISSE), UPPIGE
FARBENPRACHT and even the Possibility TONE to ERZEUGEN. BINNEN KURZESTER
Time broke one SOFTWAREFLUT Over this Computer HEREIN, because he Extreme
simple and KOMFORTABEL to PROGRAMMIEREN was. ETLICHE that today on ST-SEKTOR
acquaintance SOFTWARE-Firm have himself then on SPECTRUM first LORBEEREN
GEHOLT. KURZUM: He is it already value, in Memory BEHALTEN to become, that
ALTE "SPECCI" and that AUTOR HOFFT through the UBERTRAGUNG on he who ATARI ST still
reach from and to one Glance on him throw to can. (Should yes final
also on TT and perhaps also still on SF - so had to that NACHFOLGER of the TT
LOGISCHERWEISE HEIBEN - still FUNKTIONSFAHIG be). And may be, that it still
a pair LEUTCHEN give, the Similar feel... Him is this EMULATOR
GEWIDMET!
That AUTOR may on this Place whole specially CHRISTOPH ZWERSCHKE, wards
VERFASSER of the SUPERBEN ZX-81-EMULATORS for he who ST, his Thanks AUSSPRECHEN.
First ANGESICHTS this DEMONSTRATION that PRINZIPIELLEN MACHBARKEIT one
ZX-EMULATORS was my MOTIVATION again once big enough, past the already
JAHRELANG ANGESAMMELTEN Plans finally in the Did UMZUSETZEN. Gladly give I
also to, in WERKE my VORBILDES me a few BELEHRT to have. After one
half Year ZAHER OPTIMIERUNGEN and Fight past everyone TAKTZYKLUS, always again
UNTERBROCHEN from GRAUSAMEN ABSTURZEN and WUNDERLICHEN EFFEKTEN on BILDSCHIRM
can on that EIGENSTANDIGKEIT this PROGRAMMIEREPOS not GEZWEIFELT become.
A RIESIGES DANKE also on my Woman (the now finally AUFATMEN can) for her
Understanding and the mental Support in this Time.
2. LEISTUNG that EMULATION
-------------------------
That ZX-SPECTRUM getting amazing complete EMULIERT. That only real
ERWAHNENSWERTE Difference to the ORIGINAL is, that the HARDWARE-BLINKEN
(FLASH), the that SPECTRUM as VIDEO-ATTRIBUT to the Direction place, from
GESCHWINDIGKEITSGRUNDEN (perhaps on TT then) not supported getting.
STATTDESSEN become Sign with wards FLASH-ATTRIBUT INVERS DARGESTELLT. On
DEUTLICHSTEN to notice by CURSOR in ZX-BASIC, that on ORIGINAL BLINKT, by
EMULATOR but bare INVERTIERT is. Therewith leave himself life.
ANSONSTEN can but with following FEATURES AUFGEWARTET become:
- The ZUGRUNDELIEGENDE EMULATION of the Z80-Processores supported SAMTLICHE
OPCODES, also the OPERATIONEN with he who INDEXREGISTER-HALFTEN and the other
'NICHTOFFIZIELLE' Z80-Command, and the VOLLSTANDIGE INTERRUPTLOGIK of the
Z80 (INTERRUPT-Fashion 2 getting in many Programs on SPECTRUM used).
- The VIDEO-EMULATION place all 16 Colour of the SPECTRUM (8 FARBTONE in
JEWEILS two INTENSITATEN) as well on FARBMONITOR, as also on MONOCHROMEN
MONITOR (in Gray steps) DAR.
- The I/O-OPERATIONEN for Keyboard, Loudspeaker and BORDER-Color (Color
of the BILDSCHIRMRANDES) become ORIGINALGETREU UMGESETZT. A on
JOYSTICK-PORT of the ST ANGESCHLOSSENER JOYSTICK getting as KEMPSTON- and
IF2-KOMPATIBLER JOYSTICK (two STANDARDS on SPECTRUM) EMULIERT.
- The KASSETTEN-HANDLING of the SPECTRUM getting complete on DISK UMGELENKT.
At Statement one DATEINAMENS by Load (LOAD "name"), and by SPEICHERN
(SAVE "name") is this Process TRANSPARENT. The Load of the ERSTBESTEN
PROGRAMMES from Bindded VIA LOAD "", is naturally for DISKS senseless - it
ERSCHEINT a FILESELEKTOR, from which one that VORHANDENEN Program
AUSGEWAHLT become can.
3. START of the EMULATORS
----------------------
It become the File SPECCI.PRG and SPECCI.DAT in one BELIEBIGEN
VERZEICHNIS on DISKETTE or FESTPLATTE BENOTIGT. After Start from
SPECCI.PRG ERSCHEINT a TITELSCHIRM during the File SPECCI.DAT NACHGELADEN
getting and the INITIALISIERUNG of the EMULATORS through getting. This last a
few, because UMFANGREICHE TABELLEN in Save ANGELEGT become. It be supposed to
also at least CA. 800 KB Save free be, so on ST'S with 512 KB RAM
or 1040ERN with ZUVIELEN INSTALLIERTEN ACCESSORIES run the EMULATION not
(it ERSCHEINT one ALERTBOX).
Wrote and GETESTET honour that EMULATOR on one 1040 STF with 1 MB
Save and TOS 1.0. He should but ZUMINDEST on ST under each TOS-VERSION
run and himself also with FESTPLATTEN VERTRAGEN. SOLANGE bare enough
Main memory available is...
Falls that EMULATOR on FARBMONITOR used getting, please first in the NIEDRIGE
Solution SCHALTEN (ANSONSTEN ERSCHEINT one ALERTBOX). In that MONOCHROMEN
Solution become the Colour through Gray steps ERSETZT.
After GEGLUCKTER INITILISIERUNG begin that NORMALE SPECTRUM-BOOTVORGANG,
GEFOLGT from that EINSCHALTMELDUNG: that ST is now a NAHEZU ORIGINALER
ZX-SPECTRUM. (Until on the Speed indeed, I DID MY BEST... on TT
should the EMULATION CA. so fast how the ORIGINAL be - mark see).
4. BEDIENUNG of the EMULATORS
--------------------------
The BELEGUNG that SPECTRUM-Keyboard honour so GETREU how possible on he who ST
UBERTRAGEN. Following TABELLE show the BELEGUNG that SPECTRUM-Keys, the on
ST either not as such EXISTIEREN or otherwise BELEGT are:
ZX-SPECTRUM equals to on ST BEMERKUNG
-----------------------------------------------------------------------
SYMBOL-SHIFT ALTERNATE or UMSCHALT-Key on SPECTRUM
right SHIFT-Key
CAPS-SHIFT LINKE SHIFT-Key TEMPORARE UMSCHALTUNG Big/Small
Z Y Because SPECTRUM ENGLISCHE Keyboard has,
Y Z honour this also on ST BEIBEHALTEN
ZWECKS KOMFORT dignity some often VERWENDETEN ZX-SHIFT-KOMBINATIONEN on
one that else UNBENUTZTEN ST-Keys GELEGT, how from NACHSTEHENDER TABELLE
HERVORGEHT:
ST-Key equals to on ZX-SPECTRUM BEMERKUNG
-----------------------------------------------------------------------
CONTROL CAPS-SHIFT+SYMBOL-SHIFT EXTENDED-Fashion
F1 CAPS-SHIFT+1 EDIT
F2,CAPSLOCK CAPS-SHIFT+2 CAPS LOCK
F3,TAB CAPS-SHIFT+3 TRUE VIDEO
F4,ESC CAPS-SHIFT+4 INVERSE VIDEO
CURSOR left CAPS-SHIFT+5 CURSOR after left
CURSOR RUNTER CAPS-SHIFT+6 CURSOR after below
CURSOR RAUF CAPS-SHIFT+7 CURSOR after above
CURSOR to the right CAPS-SHIFT+8 CURSOR after to the right
F9 CAPS-SHIFT+9 GRAPHICS-Fashion
DELETE,BS CAPS-SHIFT+0 DELETE
F10 CAPS-SHIFT+SPACE BREAK (PROGRAMMABBRUCH)
< SYMBOL-SHIFT+O ; (STRICHPUNKT)
~ SYMBOL-SHIFT+P " (HOCHKOMMA)
B SYMBOL-SHIFT+C ? (FRAGEZEICHEN)
O SYMBOL-SHIFT+L = (Is same)
A SYMBOL-SHIFT+Z : (Colon)
U SYMBOL-SHIFT+2 @ (ABSATZ)
EMULATOR-STEUERTASTEN:
ST-Key Effect BEMERKUNG
-----------------------------------------------------------------------
F6 RESET Equals to RESET-Button by SPECTRUM 1)
HELP Keys-Help ZX-TASTATURSCHABLONE getting EINGEBLENDET 2)
UNDO FARBS