Luxor ABC 800: Basic ROM functions

Basic ROM functions

Address	Label	Intial value	Description
`0000-0001`	`HD.START`		Basic function: Initializes system
`0002-0003`	`CONSI`	`C390FF`	Basic function: Reads a character from a keyboard (`GET`)
`0005-0006`	`CONREAD`		Basic function: Reads a `CR` terminated line from a keyboard (`INPUT LINE`)
`0008-0009`	`BRKPNT`	`C39AFF`	Reserved for assembler trace (jump to address `FF9Ah`)
`000B-0001`	`CONWRITE`		Basic function: Prints a `CR` terminated string to screen (it can contain escape sequences)
`0010-0001`	`RST.ERR`		Basic function: Prints a Basic error message
`0012-0001`	`SOFTNOCO`		Basic function: Prints a Basic error message
`0018-0001`	`SKIPSP`		Basic function: Read characters and ignore blanks.
`001B-0001`	`STRCOMP`		Basic function: Read characters.
`001D-0001`	`TYPCOMP`		Basic function: Read characters with echo.
`0020-0001`	`EVALU`		Basic function:
`0023-0001`	`LEXSCAN`		Basic function:
`0028-0001`	`RST28`		Basic function:
`002B-0001`	`CHKLU`		Basic function: Test if file is open
`0030-0001`	`RST30`	`C39DFF`	Direct jump to `FF9Dh`
`0033-0001`	`SOFTCONT`		Basic function: `RESUME`
`0036-0001`	`NOTYET`		Basic function: Generate error 200
`0028-0001`	`RST38`	`C3A0FF`	Direct jump to `FFA0h`
`003B-0001`	`HLBOFA`		Basic function: Load value of `BOFA` to `HL` register
`003F-0001`	`XBOFA`		Basic function: Load value of `BOFA` to `IX` register
`0044-0001`	`HLPROG`		Basic function: Load value of `BOFA+20` to `HL` register
`0051-0001`	`HLBUF1`		Basic function: Load `HL` register with address of input buffer
`005A-0001`	`IO`		Basic function: Calls driver routine that is defined in `IX` block (LU-block)
`005D-0001`	`OPNCMD`		Basic function: Open a file
`0060-0001`	`OPNX`		Basic function: Open a file without formatting the name
`0063-0001`	`UNPFD`		Basic function: Control and formatting of filename
`0066-0001`	`NMI`	`C38AFF`	Basic function: Non-maskable interrupt from ABC-BUS
`0069-0001`	`USEUTLU`		Basic function: Closes a file (temperature LU block at address `FF63`h)
`006C-0001`	`ALLOZMEM`		Basic function: Allocates memory from `HEAP` during runtime

This page has been created by Sami Rautiainen.
Read the small print.	Last updated September 05, 2020.