; *************************************************************************** ; API for Sinclair ZX Spectrum OS ; Notes about the Sinclair ZX Spectrum operating system & memory ; Author: Peter Mount, Area51.dev & Contributors ; ; URL: https://area51.dev/sinclair/spectrum/ ; ; Modified: Sun, 23 Jan 2022 17:05:58 UTC ; ; Current version: https://area51.dev/sinclair/spectrum/reference/include/beebasm/api.asm ; *************************************************************************** DOS_FLUSH = &142 ; Write any pending data to this drive DOS_GET_1346 = &13C ; Set current cache/ramdisk location DOS_GET_EOF = &139 ; Get the end of file (EOF) position DOS_GET_POSITION = &133 ; Get the file pointer DOS_MAP_A = &154 ; Map drive B to unit 0 or 1 DOS_OPEN_DRIVE = &14B ; Open drive as a single file DOS_REF_XDPB = &151 ; Point at XDPB for this drive DOS_SET_1346 = &13F ; Rebuild the sector cache and RAM disk DOS_SET_ACCESS = &145 ; Change access mode of an open file DOS_SET_ATTRIBUTES = &148 ; Set a files attributes DOS_SET_MESSAGE = &14E ; Enable/disable disk error messages DOS_SET_POSITION = &136 ; Set the file pointer DOS_ABANDON = &10C ; Abandon a file DOS_BOOT = &12A ; Boot from disk DOS_CATALOG = &11E ; Get the disk catalog DOS_CLOSE = &109 ; Close a file DOS_DELETE = &124 ; Delete a file DOS_FREE_SPACE = &121 ; Get free space on drive DOS_INITIALISE = &100 ; Initialise +3DOS DOS_OPEN = &106 ; Open and/or Create a file DOS_READ = &112 ; Read bytes from a file into memory DOS_READ_BYTE = &118 ; Read byte from a file, check for soft-EOF DOS_REF_HEAD = &10F ; Point to header data for this file DOS_RENAME = &127 ; Get free space on drive DOS_SET_DRIVE = &12D ; Set the default drive DOS_SET_USER = &130 ; Set the default user DOS_VERSION = &103 ; Return DOS issue and version numbers DOS_WRITE = &115 ; Write bytes from memory into a file DOS_WRITE_BYTE = &11B ; Write byte to a file DD_ASK_1 = &17B ; Check to see if unit 1 is present DD_CHECK_SECTOR = &169 ; Check a sector DD_DRIVE_STATUS = &17E ; Check drive status DD_ENCODE = &184 ; Set copy protection encode routine DD_EQUIPMENT = &181 ; Ask what type of drive DD_FORMAT = &16C ; Format a track DD_INIT = &15A ; Initialise the disk driver DD_INTERFACE = &157 ; Check for the disk drive interface DD_L_DPB = &18A ; Initialise DPB for a given format DD_L_OFF_MOTOR = &19C ; Turn off motor DD_L_ON_MOTOR = &196 ; Turn on motor DD_L_READ = &190 ; Low level uPD765A read command DD_L_SEEK = &18D ; Seek to required track DD_L_T_OFF_MOTOR = &199 ; Start motor off timeout DD_L_WRITE = &193 ; Low level uPD765A write command DD_L_XDPB = &187 ; Initialise XDPB for a given format DD_LOGIN = &175 ; Login a new disk DD_READ_ID = &16F ; Read a sector identifier DD_READ_SECTOR = &163 ; Read a sector DD_SEL_FORMAT = &178 ; Select a standard format DD_SET_RETRY = &160 ; Set try/retry count DD_SETUP = &15D ; Setup disk parameters DD_TEST_UNSUITABLE = &172 ; Check disk is suitable to write to DD_WRITE_SECTOR = &166 ; Write a sector RST_6 = &30 ; FP Calculator RST_5 = &28 ; FP Calculator CL_ALL = &DAF ; Clear the screen RST_3 = &18 ; Collect character RST_4 = &20 ; Collect Next character RST_1 = &8 ; Report an error RST_7 = &38 ; Maskable Interrupt Handler RST_2 = &10 ; Print A to the output stream RST_0 = &0 ; Start the computer SWAP = &5B00 ; Paging subroutine STOO = &5B10 ; Paging subroutine. Entered with interrupts disabled and AF, BC on the stack. YOUNGER = &5B21 ; Paging subroutine REGNUOY = &5B2A ; Paging subroutine ONERR = &5B3A ; Paging subroutine RAMRST = &5B5D ; RST 8 instruction used by ROM 1 to report old errors to ROM 3