- Email: [email protected]
simulator
8 0 4 8 crossassembler/simulator Albetros (engineers) Limited have announced the release of a crossassembier and simulator for the Intel 8048 microprocessor. The software is writ: ten in FORTRAN IV. These two products complement the existing 8086 crossassembler, crosslinker and simulator packages. The crossassembler features online program source entry into disc file and output of assembled listing, error and object (binary) files. ASM48 assembler language, compatible with that provided by Intel for their MDS48 systems, can be implemented. The simulator enables definition and allocation of blocks of simulated memory, tracing of simulated program execution, breakpoint setting and command listing. Price of a single-user licence for either product including user documentation, installation and 12 months
warranty is £800. (Albetros (engineers) Limited, Frances Road, Basingstoke, Hants., RG21 3DA, UK. Tel: (0256)
57551)
Distronic distribute A M I Distronic are distributing the AMI $6809 microprocessor. Its two onchip 8-bit accumulators may be linked to form one 16-bit accumulator, for high speed data application s. Instructions include fast interrupt, which sets the contents of the program
counter and condition code register onstack before servicing the interrupt. Other instructions permit DMA and high speed page addressing, and the instruction set is specifically intended to allow the use of low cost, slow memory and of the microprocessor clock for system sync. Full software development support for the $6809 is provided by AMI. Software generation is simplified by allowance for 14 different addressing modes; it also includes a software interrupt instruction as an aid to debugging, trace, memory-mapping and operating system calls. (Distron/c Limited, 50/51 Burnt Mill, Elizabeth Way, Harlow, Essex, UK. Tel." Harlow 32947/39701)
Texas bubble board A single-card, plugin bubble memory board (TM990/210) is available from Celdis. It provides up to 69 kbyte of nonvolatile storage for systems employing the Texas Instruments' TM990 series of microcomputer modules. TM990/210 employs the TI BO203 92 kbit bubble memory devices which have been shown, in a typical application life test, to exhibit a failure rate of 0.0001% per 1000 hours at 50°C and at a 60% confidence level. These figures were calculated based on writing 6.8 x 107 bits/year (a full report on the test is available from Celdis as Reliability Report Bulletin CA200). Data access time is 4 ms and data transfer rate is 50 kbaud in either page or multipage mode. TM990/210 is available in capacities of 23, 46 and 69 kbyte indicated by the type number suffixes -I, -2 and -3 respectively. (Celdis, 37 Loverock Road, Reading, Berkshire RG3 lED, UK. Tel: (0734) 582211)
vol 4 no 9 november 1980
The Startronic 3400 programmer will program EA ROMS of the ER3400 (General Instrument) type byte-by-byte. Two zero-insertion-force connectors are provided enabling two 4-bit EA ROMS to be programmed simultaneously but independently so that they can be programmed together in 8-bit bytes. A 5-character hexadecimal display provides a readout of the address and the information stored in that address. Addresses are located by using the 'forward' and 'reverse' keys. Once the desired address is arrived at, pressing the 'erase' key will erase that byte only. The numeric keys set up the new byte and the 'write' key then enters the new information into the memories and the display shows the stored information. A Startronic small systems plugin computer card, zype SSC-I, enables the two EAROMS to be programmed in situ, on the card. (Startronic Limited, Beeching Road, Bexhill-on-Sea, Sussex TN39 3LG, UK. Tel: (0424) 214291)
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warranty is £800. (Albetros (engineers) Limited, Frances Road, Basingstoke, Hants., RG21 3DA, UK. Tel: (0256)
57551)
Distronic distribute A M I Distronic are distributing the AMI $6809 microprocessor. Its two onchip 8-bit accumulators may be linked to form one 16-bit accumulator, for high speed data application s. Instructions include fast interrupt, which sets the contents of the program
counter and condition code register onstack before servicing the interrupt. Other instructions permit DMA and high speed page addressing, and the instruction set is specifically intended to allow the use of low cost, slow memory and of the microprocessor clock for system sync. Full software development support for the $6809 is provided by AMI. Software generation is simplified by allowance for 14 different addressing modes; it also includes a software interrupt instruction as an aid to debugging, trace, memory-mapping and operating system calls. (Distron/c Limited, 50/51 Burnt Mill, Elizabeth Way, Harlow, Essex, UK. Tel." Harlow 32947/39701)
Texas bubble board A single-card, plugin bubble memory board (TM990/210) is available from Celdis. It provides up to 69 kbyte of nonvolatile storage for systems employing the Texas Instruments' TM990 series of microcomputer modules. TM990/210 employs the TI BO203 92 kbit bubble memory devices which have been shown, in a typical application life test, to exhibit a failure rate of 0.0001% per 1000 hours at 50°C and at a 60% confidence level. These figures were calculated based on writing 6.8 x 107 bits/year (a full report on the test is available from Celdis as Reliability Report Bulletin CA200). Data access time is 4 ms and data transfer rate is 50 kbaud in either page or multipage mode. TM990/210 is available in capacities of 23, 46 and 69 kbyte indicated by the type number suffixes -I, -2 and -3 respectively. (Celdis, 37 Loverock Road, Reading, Berkshire RG3 lED, UK. Tel: (0734) 582211)
vol 4 no 9 november 1980
The Startronic 3400 programmer will program EA ROMS of the ER3400 (General Instrument) type byte-by-byte. Two zero-insertion-force connectors are provided enabling two 4-bit EA ROMS to be programmed simultaneously but independently so that they can be programmed together in 8-bit bytes. A 5-character hexadecimal display provides a readout of the address and the information stored in that address. Addresses are located by using the 'forward' and 'reverse' keys. Once the desired address is arrived at, pressing the 'erase' key will erase that byte only. The numeric keys set up the new byte and the 'write' key then enters the new information into the memories and the display shows the stored information. A Startronic small systems plugin computer card, zype SSC-I, enables the two EAROMS to be programmed in situ, on the card. (Startronic Limited, Beeching Road, Bexhill-on-Sea, Sussex TN39 3LG, UK. Tel: (0424) 214291)
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