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Cambridge Z88
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Z88 Developers' Notes

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  • Release Notes
  • Introduction
  • Z88 Overview
  • Application writing
  • Interfacing with the system
  • Application Static Structures
  • Error handling and related issues
  • Organization of memory
  • Memory Management
  • Output and the screen driver
  • File Input - Output
  • Input and the keyboard decoder
  • Shell environment and ELF
  • Filters
  • Time and date management
  • Integer arithmetic
  • Standard Input - Output and the CLI
  • The Printer filter
  • The floating point package
  • Handling Alarms
  • Linked lists
  • The Serial Interface
  • The Wildcard Handler
  • DOR's
  • The Map Area
  • Installation and removal of RAM Applications
  • Miscellaneous useful routines
  • Miscellaneous useful information
  • BBC BASIC and the in-line assembler
  • Manipulating the Blink Registers
  • The Z88 Motherboard Hardware and periphial cards
  • Glossary
  • System Calls Reference
    • DC_Alt, Pass an alternative character
    • DC_Bye, Exit current process
    • DC_Dbg, Enter debugger
    • DC_Dis, Disassemble
    • DC_Elf, Executable and Linkable Format (ELF) Interface
    • DC_Ent, Enter process
    • DC_Gen, Screen driver SOH call
    • DC_Icl, Invoke new CLI
    • DC_In, Read from CLI
    • DC_Ini, initialize the Director
    • DC_Nam, Name current application
    • DC_Nq, Handle Director/CLI enquiries
    • DC_Out, Write to CLI
    • DC_Pol, Poll for application or card usage
    • DC_Prt, Print to CLI
    • DC_Rbd, rebind streams
    • DC_Rbp, Remove Breakpoint
    • DC_Rte, Return from ELF
    • DC_Sbp, Set break point
    • DC_Sp, Handle Director/CLI settings
    • DC_Upd, Update Operating System
    • DC_Xin, Examine CLI input
    • OS_Alm, Alarm manipulation
    • OS_Axm, Allocate explicit memory
    • OS_Axp, Allocate explicit page
    • OS_Bde, Copy bytes to extended address
    • OS_Bhl, Copy bytes from extended address
    • OS_Bix, Bind in extended address for availability
    • OS_Blp, Make a bleep
    • OS_Bout, Write string at (B)HL to standard output
    • OS_Box, Restore bindings after OS_Bix
    • OS_Bye, Exit application
    • OS_Cl, Internal close
    • OS_Cli, CLI interface
    • OS_Del, File delete
    • OS_Dly, Delay a given period
    • OS_Dom, Open director memory
    • OS_Dor, The DOR interface
    • OS_Ent, Enter an application
    • OS_Epr, File Eprom Interface
      • EP_SAVE ($00) - blow RAM file to Eprom in slot 3
      • EP_LOAD ($03) - read file from Eprom in slot 3 into RAM file
      • EP_REQ ($06) - Check for "oz" File Eprom or File Area in slot C
      • EP_Fetch ($09) - Copy saved/deleted file from File Area to RAM
      • EP_Find ($0C) - Find active File(name) in File Area in slot C
      • EP_DIR ($0F) - Fetch filename from Eprom in slot 3
      • EP_First ($12) - Return first file entry in File Area in slot C
      • EP_Prev ($15) - Return previous file entry in File Area
      • EP_Next ($18) - Return next file entry in File Area
      • EP_Last ($1B) - Return last file entry in File Area in slot C
      • EP_TotSp ($1E) - Return amount of used file space in slot C
      • EP_ActSp ($21) - Return active file space in slot C
      • EP_FreSp ($24) - Return free file space in slot C
      • EP_Count ($27) - Return number of files in File Area slot C
      • EP_Stat ($2A) - Return file entry status (active or deleted)
      • EP_Size ($2D) - Return file size of File Entry
      • EP_Name ($30) - Copy File entry name to buffer at (CDE)
      • EP_Image ($33) - Return pointer to start of file contents
      • EP_SvFl ($39) - Save RAM file to Flash or UV Eprom to slot C
      • EP_New ($36) - Return pointer to future new entry in File Area
      • EP_Delete ($3C) - Mark File Entry as deleted on Flash or UV Eprom
      • EP_Format ($3f) - Create File Area in slot C, on UV Eprom or Flash Card
      • EP_NewFile ($42) - Write RAM file to File Card in slot C
      • EP_WrBlk ($45), Write a block of bytes to UV Eprom in slot 3
      • EP_Fptr ($48), Get file pointer via offset into file entry image