Programming Aids, Utilities, Toolkits
ACS Software
ACS-Debug
16K RAM. £5.50 plus s&h.
Machine code debug program. Provides register contents, memory search, block move, memory list, etc. Can be wed with Acsemmbler and Dis-Acsem. Marketed in the US by Cleva Computer Ware.
ProgMerge
16K RAM. £5.50 plus s&h.
Package for the merging and renumbering of Basic programs. Renumbering routine can be used on its own if required. Marketed in the US by Cleva Computer Ware.
ProgStore Toolkit
16K RAM. £5.50 plus s&h.
Package for adding subroutines from tape to a main program. Comes with subroutines for hexloader, hexlister, progstore expansion, renumber. Marketed in the US by Cleva Computer Ware.
Barlog Software
Machine Code Starter
16K RAM. Cassette: $7.
A machine language program containing 3 sub-routines: MEMORY LEFT, INVERSE SCREEN, and FILL SCREEN. All 3 are disassembled and explained to the beginner.
Bob Brown
Renum
16K RAM; 64K RAM. Cassette: $5. SASE for information.
Self-loading line renumberer that does GOTOs and GOSUBs; renumbers a Basic program in 5 seconds. All machine code.
Bug-Byte Software
ZXTK
16K RAM. Cassette: $14.
Toolkit adding 10 commands including: FULL RENUMBERING, MERGE PROGRAMS, READ FILE NAMES FROM TAPE, and more.
Cleva Computer Ware
De-Bugger
16K RAM. Cassette: $9.95.
Makes writing machine code programs easier. Works entirely in decimal; hexadecimal is not needed.
Progmerge
16K RAM. Cassette: $9.95.
A series of machine code routines for storing Basic programs. The stored material can then be inserted into a second Basic program and the composite program formed is automatically remembered. Progmerge runs immediately after loading and by the time that the summary of the instructions appears on the screen, the machine code instructions will have been transferred into user space.
Progstore
16K RAM. Cassette: $9.95.
A series of machine code routines that create 3072 bytes of user space and then transfer into this space machine code routines that allow the transfer of a Basic program into the user space after running this program allow a return to another Basic program stored conventionally in low memory.
Progstore/Tool Kit
16K RAM. Cassette: $9.95.
4 utility programs that operate from progstore. Having loaded progstore in tool kit can be loaded and then progstored with RAND USR 32500. Each program can be run by RAND USR 32723. Hexloader allows machine code programs to be rapidly written in hexadecimal. HEXLISTER: complements HEXLOADER by allowing machine code programs to be listed in hexadecimal.
Computer Engineering Services
Compute
16K RAM. Cassette: $12.95 plus $1.95 s&h.
A programmable program. If you are a serious programmer of the Sinclair, this program will help you to assign various mathematical functions to your program variables. Instructions and listing. By Rolf L. Miller.
Cosmonics
CIOUTIL
2K RAM. Cassette: $17 plus $1.50 s&h.
This utility allows the user to save data from strings, arrays, or a memory location onto a cassette. It can assist in the translation of program listings written in Basic which contain “write to cassette” and “read from cassette” statements. Full documentation and a sample program demonstating its use.
CFASTDATA
16K RAM. Cassette: $20 plus $1.50 s&h.
This utility provides all of the capabilities of CIOUTIL, but is 6 times faster. Writes data to cassettes and reads data from cassettes at a speed which is 6 times faster than the TS1000 and ZX81 SAVE and LOAD commands.
CFASTDUET
16K RAM. Cassette; $27.50 plus $1.50 s&h.
2 programs: CFASTDATA and CFASTLOAD. When both programs are used, you may LOAD programs and data at a speed which is 6 times faster than the TS1000 and ZX81 LOAD and SAVE commands. CFASTLOAD can be configured to your needs. No additional hardware is needed.
CRC Software
Reline
16K RAM. Cassette: $9.95.
Renumbers your Basic programs. This is a very useful utility.
Custom Electronics Device Corp.
ML Nit-Pick
Look at blocks of memory; load hex code from the keyboard; see the results of your program run register by register, flag by flag. Converts hex to decimal and vice versa. Write for details.
Gladstone
BASICare Micro System.
Toolkit (B26). $44.95.
Accepts up to 8K of utility programs in EPROM/ROM. Located in address space after ZX81 on board ROM, allows for calling of Toolkit held routines via the USR function.
Toolkit (Z42)
16K RAM. Cassette: $14.95.
Features: RENUMBER, DELETE, MEMORY check, DUMP (displays current values of string and numerical values, except arrays), FIND a string, REPLACE a string, SAVE (transfers program to below RAMTOP), APPEND (joins 2 programs), REMKILL (removes all REM statements). (From Artic Computing.)
Z-Aid (Z98)
16K RAM. Cassette: $14.95.
VERIFY confirms whether a program has been recorded properly. Mload/Msave enables specified block of memory to be saved. VPTR eliminates tedious PEEKs and POKEs to find where variables are stored. CHAIN allows 2nd part of a Basic program to be added to the end of the first. Z-Aid resides at top of 16K.
4K Toolkit (D14). $29.95.
Editor for Basic programmers. Offers 11 facilities: ALTER (replace a string); BYTES (how much free memory); COPY (duplicates program lines); DELETE (a block); FIND (a string); HELP; INSERT (merge two programs); KEEP (a block of lines by storing them above RAMTOP); MOVE (lines within a program); RENUMBER; VERIFY.
ZX Forth (Z43). $29.95.
Forth allows you to define your own language by adding new functions to the language to match it to whatever you want to do. Advantages of Forth: Speed (runs up to 10 times faster than Basic); Interactive (once a word is entered it is compiled immediately and available for use); Flexibility; Structured. Package includes: ZXForth on cassette, user’s manual, editor on cassette written in Forth, and editor manual.
Graphicomp
Machine Code Test Tool
16K RAM. Cassette: $25.95.
A utility program with a tutorial course enabling you to enter, test, display, and debug hexadecimal machine code routines. By Oxford Computer Publishing. Available only in Canada.
Human Engineered Software
2K Programmer Kit
2K RAM. $12.95.
A first for Timex owners without expansion memory. Provides beginning programmers with the same time saving utilities previously available only with expanded memory.
Integrated Data Systems
2 Programming aids from Kayde
16K RAM. Cassette: $11.76 each.
Promerge. Toolkit.
Programming aids from Oasis Software.
$14.80 each.
Macro Assembler. Disassembler and Debugger.
Kopak Creations, Inc.
Toolbox
1K RAM. Cassette: $19.95.
This program has the ability to read the names of programs on a tape and create a directory. You can also read data to the tape, and save data.
Management Services Co.
SYSLD
16K RAM. Cassette: $12.95 pp.
Take the burden out of writing in machine code with this utility: totally menu driven selector; write, list, insert, delete, and move machine code anywhere in memory; hexadecimal to decimal converter; routines in machine code for fast response; comprehensive documentation.
Melbourne House Software, Inc.
ZX-Toolbox (26406MY)
1K RAM. Cassette: $14.95.
3 Programs. Directory: Displays names of programs on a tape. Record: Allows SAVEing data and READing it back into the program later; can be incorporated into your own Basic programs. Toolkit: Allows you to get better graphic effects and to write your programs more quickly and efficiently; commands: NO INVERSE, INVERSE, REVERSE, FILL, FREE, RENUMBER, FIND & REPLACE, OPEN. By Dr. Ian Logan and David Webb.
Microsystems Specialists, Inc.
uSS Pilot
16K RAM. $29.95 plus $2 s&h.
The latest language for the Sinclair and Timex systems. An excellent introductory language for children and beginners since it is easier to use than Basic. Features one-character commands and a line editor. Includes tutorial and sample programs.
Mindware Inc.
From Eagle Sales
Screen Kit
16K RAM. Cassette: $19.95 plus s&h.
Series of MC routines for use in Basic programs. Execute complicated operations with a few commands: Draw any size border; clear part or all of the screen; slide screen up, down, right, or left; invert video on part or all of the screen; create a flashing cursor; find how much memory is left; load any character to the whole screen; save and load Basic variables only to create data files. By Picturesque.
From Eagle Sales
Toolkit
16K RAM. Cassette: $19.95 plus s&h.
Lets you execute many familiar routines with a single command. Comprehensive LINE RENUMBER including GOSUBs and GOTOs, LOAD, EDIT, and RUN machine code programs; INSPECT the ZX81 and TS1000 system routines; COPY these routines into RAM and PATCH or EXTEND them; FIND a given piece of Basic code and replace all occurrences of it; move blocks of Basic lines with EDIT. Examples and instructions. By Hewson Consultants.
P. Nethercot & R. Rackstraw
ZX81 CESIL Compiler
16K RAM. Tape only. 3.
Run CESIL on your ZX81. Up to 40 CESIL lines per program. Facility for modify, list, printout listing, etc. Menu driven. Available soon. See note in Suppliers Directory.
Oxford Computer Publishing Ltd.
Machine Code Test Tool for Spectrum and TS2000.
16K or 48K RAM. Cassette: $19.95.
The ultimate tutor and debug program. Lists and displays Machine Code instructions as they are written. Ideal for both the novice and the expert. With full 32 page tutorial. Hex-decimal conversion as standard. Superb “user” design graphics feature.
Peak
String
2K RAM. Listing: $2.
A routine you can add to your programs to search for commands, words, phrases, names and phone numbers. String can help in any program where you need to recall words for correction or information.
Renumber
2K RAM. Listing: $1.
A line renumbering routine for your programs. Allows you to insert quickly new lines and program statements.
Pleasantrees Programming
Basecon
16K RAM. Cassette: $9.95 plus $1.50 s&h.
Base conversion tool for machine language programmers; converts numbers between binary, octal, and hex; accepts any base up to base 16 and returns its base 10 equivalent or vice versa; whole or fractional numbers; detailed instructions.
Graphics: A to Z
$17.95 pp.
Manual just on programming graphics. Topics include: animation, 3-D plotting, diagonal scrolling, writing and dissecting uneditable programs, MC shortcuts, and more. Packed with listings. Invaluable Memotech HRG chapters, including: comprehensive subroutine explanations, MC control, and complete firmware disassembly, Available 5/83.
Programming Form Pads.
$2.19 each plus $.75 per pad s&h.
50 sheets, 8 1/2 x 11; printed with all lines including edit lines on premium eraseable paper. Specially printed Windowcard comes with each pad making line reading simple.
G. Russell Electronics
Key
16K RAM. Cassette: $10 pp.
Short program of four powerful machine language routines unlocks computer power to let you: 1) SAVE and LIST any ZX81/TS1000 cassette program—even those normally unLISTable, unSAVEable cassettes. 2) LOAD two programs, one after another and 3) MERGE them into one program. 4) Display number of bytes remaining in RAM for programming at any time, instantly.
Sinware
Z Extra
16K RAM or more. Cassette: $19.95 plus $2 s&h.
A display manager and data filing program in machine code. Provides a full screen editor for a direct keyboard-to-screen link with full editing and plotting features. Filing and display facilities permit page-flip animation or horizontal or vertical scrolling through windows. Stores up to 99 screens in 64K.
Step
16K RAM. Cassette: $14.95 plus $2 s&h.
A debugging tool for Basic programmers. Provides single stepping through program lines or conditional or loop breakpoints. Basic display and reports on up to 15 expressions available after each step. Written in machine code to fit in upper 3K of your 16K RAM.
Z-Tools
16K RAM or more. Cassette: $14.95 plus $2 s&h.
A machine language extension to the Basic editor that allows you to merge two Basic programs, to renumber, copy or delete blocks of lines, and to verify a program on tape against memory. Available for the upper 2K of a 16K RAM pack or for the 8-10K block of an expanded memory.
Softest
ZX81 Test
1K; up to 16K RAM. Cassette: $10.
Suite of test programs. Tests, displays, memory, keyboard and primary basic functions.
Softsync, Inc.
Machine Code Test Tool
16K RAM. Cassette: $19.95.
This package contains a utility program and a complete tutorial course book which enables you to enter, test, display, and debug hexadecimal machine code routines simply and quickly. This tool is constructed to help the beginner who wishes to explore machine code programming as well as the expert who wants to polish up.
Programmers Toolkit
16K RAM. Cassette: $14.95.
Toolkit provides machine code routines to help you write better, faster, and more elaborate programs. Renumber program lines, SEARCH and REPLACE any character, insert a WAIT condition to stop the program until a signal is input, HYPER GRAPHICS MODE, and more. “Compatible” with the Graphics Kit and can be loaded with it, making a powerful programmer’s aid. (Licensed from Paul Holmes.)
Soft Way
Utilities Tape 3
16K RAM. Cassette: $10.95.
Menu driven. Manipulates assembly language programs in decimal or hexadecimal code. Stores assembly programs in protected memory safe from the NEW, LOAD, SAVE and CLEAR. UT is a short version of Utilities for fast transfers and displays. Add assembly programs and continually increase the capabilities of UT.
Spectra Computer Problems
Instructional Packette series
Packettes are developed to help troubleshoot and improve the computer. They deal with specific subsystems and supply an exhaustive treatise covering all possible malfunctions, their solutions, and, in most cases, plans for constructing components to improve that system. Packettes endeavor to supply information on all the Sinclair computer series. Included are:
Complete Video. $7. Covers video trouble shooting tips, UHF conversion, fine tuner for the RF modulator, direct and reverse video.
Complete Keyboard. $7. Covers decoding a standard ASCII keyboard, decoding shift keys, reset, and repeat keys, and keyboard beeper.
Complete LOAD and SAVE. $7. Covers troubleshooting tips and plans for LOAD monitor and signal filtering.
Complete Memory. Coming soon. Memory pack trouble shooting and plans for constructing your own memory pack, EPROM reader and extending the memory of the 16K RAM pack up to 64K.
SyncMaster
Screen Machine
16K RAM. Cassette: $14.95 + $1 s&h.
Program inputs like on mainframe computers. 1K ML sub-routine allows inputs anywhere on screen, complete error checking, automatic formatting (dates, decimals), and advance directly to next prompt. Easy interface to programs; one string and a gosub. Saves valuable programming time and looks more professional.
Machine Language Helper
16K RAM. Cassette: $14.95 + $1 s&h.
Easily enter ML listings, programs. Convert hex to decimal. Examine ROMs. Manipulate memory any way you can think of; move blocks, bytes; insert, delete ranges of memory. Bring out the full power of ZX/TS machines.
Syncware Company
Multiprogram Demo
16K RAM. Cassette: $10.
A tutorial on a technique for storing multiple programs in 16K or more RAM at the same time. No MC knowledge assumed. Cassette illustrates the technique with four games programs: all programs listable. Games are condensed versions of “Syncwars,” “Minotaur,” and “Blackjack.”
Timeworks
Beginning Game Design (1401).
16K RAM. Cassette: $16.95.
Game design of “Lunar Lander,” a challenging space game. Kit shows in detail what should go into a good game program; covers display, design, and animation. Based on our 8 step procedure of a “Top Down” design approach: General concept, Displays, Flow Chart, Algorithms, Writing the Program, Type in the Program, Debug the Program, Modify the Program.
Intermediate Game Design (1402)
16K RAM. Cassette: $16.95.
Game design of “Slot Machine,” a game of skill and chance. Kit shows in detail how to design a more sophisticated game. This is not, however, a typical slot machine program. A few surprises are thrown in. Uses the “Top Down” design approach; covers use of arrays, FOR-NEXT loops, subroutines, and how to make RND work for you.
Intermediate Data Handling (1403)
16K RAM. Cassette: $16.95.
The design of a fundamental Data Base that can be used for anything from a mailing list to a date reminder. Uses the “Top Down” design approach; covers information entry and retrieval, tape storage, string arrays, and sorting techniques.
Troiano Software Company
Starter Software Packages
2K RAM. Listing: $4.
14 programs to introduce both the Sinclair and the language Basic. The programs cover several different topics including education, games, and graphics. As your programming skills increase, these programs will produce a solid format for your own software.
PRG-DLR
2K RAM. Listing: $3.
Cassette program directory allows the user to catalog programs that were stored on tape. Program name can be added/changed/deleted.
Tree Systems
Multi-Forth
2K RAM. SASE for information.
This is a multi-tasking Forth with most of the standard fig-Forth words. The language is perfect for control applications: DC servos, A/D converters, furnace controller, read temperatures, etc. EPROM on circuit board. Switch between Basic and Forth.
T-S Systems
Multiple Screens
16/48K TS2000. Listing: $4 plus large SASE.
Utility type program which gives the power to store 3 different screens and remembers any of them in microseconds.
2-Bit Software
Turning the Truth Tables
2K RAM. Cassette: $9.95.
First in a series on the principles of programming. No lectures or lessons. Have some fun as you find out what “and,” “either,” “or,” “if,” and “then” mean to a computer. Some things may not be so logically impossible as you might think. Or so possibly illogical. Ages 12 and up.
UAS
Data Base Conversion. (C8003).
16K RAM. Cassette: $3.95.; listing: $1.00
Input your number in any of the following data bases: decimal, binary, octal, hexadecimal. Get the equivalent in the other data bases.
Basic Instruction. (L3017).
16K RAM. Cassette: $3.95.
Detailed program listing for Integer program C3017 (see games) to illustrate various advanced programming techniques. Improve your programming skills while writing a new game program to capture your imagination.
Decision Tables. (C8000).
16K RAM. Cassette: $5.95.; listing: $1.00
Eliminates redundancy in your programs. The instructions for this program include a section on the way to convert from flow diagrams to decision tables and back. The program will help you to trim a 15 by 15 table resulting in considerable memory savings.
The Ultimate Blackwood
16K RAM. Cassette: $12.
LODAB merges basic programs, renumbers lines, and tells the user the size of each program. A demonstration program is included, as is a very complete user’s manual.
Assemblers, Disassemblers, Compilers, Monitors
ACS Software
Ultraviolet
Spectrum 16K/48K RAM. £7.50 plus s&h.
Z80 assembler. All Z80 instructions correctly assembled. Supports EQU, ORG, DEFB, DEFW, DEFS, etc. Code can be assembled and then relocated.
Infrared
Spectrum 16K/48K RAM. £6.75 plus s&h.
Z80 disassembler. Complementary disassembler to Ultraviolet. 48K version can be used at the same time as Ultraviolet to give full machine code system.
Acsembler
16K RAM. £5.50 plus s&h.
Z80 assembler. All Z80 instructions are correctly assembled and listings can be output to the printer. Marketed in the US by Cleva Computer Ware.
Dis-Acsem
16K RAM. £5.50 plus s&h.
Z80 disassembler. Works alone or with assembler. All Z80 instruction are correctly disassembled and listings can be output to the printer. Marketed in the US by Cleva Computer Ware.
Aerco
DA-1 Disassembler
16K RAM min. $12.
High speed machine language disassembler displays Z80 machine code and requires only 2K of memory.
Bob Berch
The ZX Compiler
16K RAM min. Cassette: $25 pp.
A true compiler. Generates a machine code program from one written in an integer subset of Timex/Sinclair Basic. Easy to use. 22 commands, 12 functions, 256 16 bit variables, single DIM arrays. Resulting code may be located anywhere in memory. Significantly increases program speed. Two versions on one cassette for different memory set-ups. 20 page manual.
The ZX Assembler/Disassembler
16K RAM min. Cassette: $15 pp.
A complete machine code development package. 8K program resides above RAMTOP. Machine code is generated from assembly instructions entered in REM statements. Standard Zilog mnemonics. Pseudo-ops ORG, DATA, EQU, RESV, and END. Disassembler includes hex editor and single stepper. REM generator and binary SAVE/LOAD utilities. 16 page manual.
Bug-Byte Software
ZXAS
16K RAM. Cassette: $12.
Assembles all the standard Zilog mnemonics. When assembled, the assembly listings, together with assembled codes and addresses, are displayed on the screen. Code executed by USR. Program occupies 5K at top of memory. Use the Z80 microprocessor without having to POKE. Full documentation.
ZXDB
16K RAM. Cassette: $15.
Complements ZXAS assembler; combined MC disassembler and debugging program; used with ZXAS leaving 9K RAM for programming. Features: DISASSEMBLER, SINGLE STEP, BLOCK SEARCH, TRANSFER AND FILL, HEX LOADER, REGISTER DISPLAY and more; executed by one key commands.
Aspect Editor/Assembler
Spectrum. £9.
Aspect is a full editor and assembler package. Uses all the instructions supplied by Intel. Comprehensive set of pseudo-ops provided so that text etc. can be included in routines. Code is assembled at a fixed address, but can be made to execute at any address. Full screen editor with automatic checking. Full documentation.
Cleva Computer Ware
Acsembler
16K RAM. Cassette: $9.95.
2 pass assembler. For those who wish to write their own machine code programs. It is designed to run alone, or together with the dis-assembler, and/or the de-bugging program. These provide a system for writing, editing, checking and testing machine code programs.
Dis-Acsembler
16K RAM. Cassette: $9.95.
Allows you to read the ZX81/TS1000 ROM(16K). It is written specifically for the Sinclair/Timex computers, and, unlike some programs modified for Intel 8080 dis-acsemblers, it gives full Z80 mnemonics.
Gladstone
ZX Assembler (Z40)
16K RAM. Cassette: $14.95.
Full Editor/assembler and monitor. Labels may be used instead of any string. Features: Line insertion/deletion, insert characters, auto repeat on all keys. Monitor inspects memory, registers, and run MC programs. MC program occupies 7K at top of memory (From Artic Computing.)
ZX Bug (Z41)
16K RAM. Cassette: $14.95.
MC monitor and disassembler. Works in hex so addresses are a maximum of 4 hex bits long. 28 commands. 4K long; uses memory from 71E0 to top memory (From Artic Computing.)
Intercomputer Inc.
Mcoder (PT4001)
Cassette: $18.95.
Mcoder is the first compiler for the TS1000 and ZX81 computers. Give your Basic programs the speed of machine language programs by running them in compiled form. Simply write and debug your Basic program and run it through Mcoder. You will see it compiled on the screen and have the machine language version upon completion.
Kopak Creations, Inc.
Z-99 Compiler
16K/2K RAM. Cassette: $19.95.
Automatically codes 99% of Sinclair Basic into machine code.
Lamo-Lem Laboratories
ZX81 1K Disassembler
1K RAM. Cassette: $9.95.
Disassembler translates each Z80 machine code instruction into a unique key. Look up the key in the disassembler manual to find the assembly language mnemonic. Translates the 8K ROM, or programs of up to 150 bytes. Includes Memory Test.
ZX80 1K Disassembler
4K ROM; 1K RAM. Cassette: $9.95.
Disassembler translates each Z80 machine code instruction into a unique key. Look up the key in the disassembler manual to find the assembly language mnemonic. Translates the 4K ROM, or program segments stored in a 75 byte section of memory. Includes Memory Test.
Super Z
4K ROM; 1K RAM. Cassette: $9.95.
Machine code program which adds 7 new statements to ZX80 Basic: TAB, SCROLL, MEM, PAUSE, READ, RESTORE, and DATA. All are stored in a 350 byte subroutine at line 0 and accessed with a USR call. Comes in a ziplock bag with demo program, manual, and 2 reference cards.
Martin Irons
“DA1” Disassembler.
12K. Cassette: $9.
Allows you to browse the powerful routines in ROM, check your own machine code by converting it to assembler statements; converts 812 regular and extended opcodes to assembler mnemonics; no external tables required; jump to any point in memory at any time. Instructions.
Mindware Inc.
From Eagle Sales
Machine Code Monitor
16K RAM. Cassette: $19.95 plus s&h.
Enter, run, and de-bug machine code programs independently of Basic commands. Enter and de-bug MC instructions; then test them in operation. Performs hexadecimal arithmetic, copies and moves blocks of data, converts between decimal and hex, examines and modifies locations in memory. Maintains a protected environment for its own system variables and displays. By Taurus Computer Design.
Oxford Computer Publishing Ltd.
Full Screen Editor/Assembler for Spectrum and TS2000.
16K & 48K RAM. Cassette: $19.95.
An essential tool for machine code writers, this program represents the state of the art in terms of full screen input, editing, and cursor control, plus 42 column display. Features include auto-line numbering, full expression evaluation, all Z80 mnemonics, text buffer, printer output, dec or hex input, all the normal assembler directives.
Scientific Software
TS1000/ZX81 Assembler/Debugger
Cassette: $14.95 pp; $19.95 outside US.
Two-pass, entire Z80 instruction set, Zilog mnemonics. Labels, symbols, seven pseudo-ops: ORG, DEFB, DEFW, DEFS, DEFC, EQU, END. Displays or prints listings. Assembles up to 1000 lines/minute with syntax checking, diagnostics. Debugging features include: memory display, modification in hex, breakpoint with display of all registers, line renumbering. Comprehensive manual. Program takes 6.5K in MC and Basic.
Sinware
Hot Z
16K RAM or more. Cassette: $19.95; EPROMs: $40; plus $2 s&h.
Machine language editor and disassembler that gives full screen Z80 assembly language listings with user-supplied labels. Provides full editing functions and debugging facilities with over 40 commands. Allows single stepping of machine programs with full Z80 register display. Loads or saves ZX tapes and gives printed listings.
Utilities Engineering
ROM Reader
16K RAM. Cassette: $12.45.
Translates the contents of the Sinclair Basic operating system into Z80 mnemonics, hexadecimal of codes, and “nn” data from the PEEKed decimal values.