This file was downloaded as a long message from the bulletin board. Category 6, Topic 15 Message 21 Sun Mar 06, 1988 DANMILLER at 14:16 CST The address of silicon composers is 210 California Ave, Suite K, Palo Alto, CA 94306 tel (415) 322 8763. The addres of Logdical Devices is Logical Devices Board Level Products Group, 1321 NW 65th pl., Ft. Lauderdale, FL 33309 tel (305) 974 0967. The Silicon composer's board is a full lenght AT with static memory on card to 128K bytes using LSI memory module carriers. Memory is shared with the at and the message passing area and command area can be configured to be anywhere in the AT 16megabyte address space. This is handy cause page C gets real full on an AT with a few specialty boards in place. They have a target compiler that runs on the at and downloads to the harris chip. There is not a forth interpreter that they source to run on the chip yet. The target compiler seems solid and has libraries for i/o with the at, at-graphics is an add on library, has double math support, no floating point, also has a memory maagemet library. The compiler includes a program decompiler/debugger. Asci files are used for source and a block to ascii utility is included for program conversion. The language supports C language convention for strings and files. Apparently works like a regular compiler and can handle forware referencing of colon definitions. Ray Duncan at LMI also has a target compiler for the Harris machine. Logical devices' board is stand alone. The picture only shows one lsi chip carrier so either it uses a prototype asic, the picture is wrong, or it doesn't have the stack controllers, multiplier or interrupt controller the silicon composer's board has. But then again it might be much cheaper for those who just want to get their hands on something. It comes with an LMI target compiler that runs on a pc and presumable downloads code over a serial line. There are two prom packages shown on the picture. 2 i/o ports, multitasking and 2 hardware stacks 2k by 16 are icluded., speed is 4 mhz. Hmmm. claims 7 interrupts. Ram 32k by 16 bits max 8k installed as usually delivered. No Forth interactive interpreter listed. (Hey guys get busy !) Has a uart and 2 i/o ports, and leds. Oh, I see a bunch of hardware expansion options. Ahh, heres the multiplier , fiber optic communications interace!!!, Custom A/d,d/a card, 16 bit eprom programer, local keypad/display for standalone operation, , memory memory expansion and 8 mhz processor option!!, ARINC communication (anyone know what this is?), and gpib- 488,rs422.232 plug in card. Also mil spec versions and STEEL enclosure. Sounds like these guys are serious. heavy duty. I've seen the silicon composers board and it looks well built. I've played with the compiler a bit and it seems to do what it says. I have not seen the logical devices stuff. The above info is off their data sheet. Will post more data as I can digest it. Oh, could someone download this message and post it on the bbs as a file. thanks.