Volume: 2
Issue: 10
Articles
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Rounding off RoutineZX81 Type-in program Tutorial The 8K ROM’s floating point decimal is great, but sometimes you don’t need 9 decimal places.
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A Tool to Help Debug ProgramsZX80 ZX81 Tutorial To determine what occurs during a loop portion of a malfuntioning program, use a PRINT statement called a flag.
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Sort RoutineZX81 Type-in program This routine can sort 20 words of 20 characters in about 8 seconds.
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Sinclair Printer by 1982Sinclair engineers will redesign the printer to meet US requirements at the end of September, 1981.
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Beginners: User-Friendly ProgramsZX80 ZX81 Tutorial Some easy programming methods to write user-friendly programs for either 4K or 8K ROM programs.
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Crash Course in MicrocomputersBook review Review of the book by Louis Frenzel.
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A Night in Las VegasZX80 Software review Review of the cassette from Lamo-Lem.
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8K ROM Monitor RoutinesZX81 Reference Continuation of article from prior issue examining the 8K ROM.
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[These SYNTAX readers would like to contact ...]Readers from Louisiana and Nebraska.
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Dear EditorLetters about magazine index; resistor values; ordering from England; errors in books; TV interference; bad connections; memory problems; replacement parts.
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Annotated 4K ROM Listing - Systems VariablesZX80 Reference Listing tells you the values of all major variables used in the 4K ROM.
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Bingo Number GeneratorZX80 Type-in program Generates numbers with their preceding letters and prints them at 8x their normal size at the top of the screen.
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Gradebook for TeachersZX80 Type-in program Program helps teachers average grades at the end of the grading period.
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Trouble-shooting Your MicroAceMicroAce You’ve put together your MicroAce and examined the PC board solder connections — everything looks good. Power up — you get a white screen and no cursor. What do you do now? Here is a chart compiled by removing each IC chip from a working MicroAce and observing the effect. It may provide you with…
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Changes to Super ZX80 InvasionZX80 Type-in program Add new levels of difficulty.
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Changes to September Budget ProgramZX80 Type-in program User interface changes to the program.
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Syntax ErrorZX80 ZX81 Two errors in Machine Code Print Routine.
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CAI Peripherals UpdateCAI Instruments will ship their first Widgets the week of Sept. 21.
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Sinclair Product UpdatesZX81 Sinclair’s ZX81 computer reaches the US on Oct. 7, 1981.
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MicroAce-ZX80 Component EquivalenceZX80 MicroAce Chart showing part numbers and designations between the two computers.