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Length: 2688 (0xa80)
Types: TextFile
Names: »SCB.ASM«
└─⟦21f5a1bd4⟧ Bits:30003500 CP/M Plus (tm) Version 3.0 BIOS Revision F
└─⟦this⟧ »SCB.ASM«
└─⟦67f37b9ce⟧ Bits:30003503 JET80/W20FT systemdisk
└─⟦this⟧ »SCB.ASM«
title 'System Control Block Definition for CP/M3 BIOS'
public @civec, @covec, @aivec, @aovec, @lovec, @bnkbf
public @ConMd, @QueFl, @crdma, @crdsk, @vinfo, @resel, @fx, @usrcd
public @mltio, @ermde, @erdsk, @media, @bflgs
public @date, @hour, @min, @sec, ?erjmp, @mxtpa
scb$base equ 0FE00H ; Base of the SCB
@CIVEC equ scb$base+22h ; Console Input Redirection
; Vector (word, r/w)
@COVEC equ scb$base+24h ; Console Output Redirection
; Vector (word, r/w)
@AIVEC equ scb$base+26h ; Auxiliary Input Redirection
; Vector (word, r/w)
@AOVEC equ scb$base+28h ; Auxiliary Output Redirection
; Vector (word, r/w)
@LOVEC equ scb$base+2Ah ; List Output Redirection
; Vector (word, r/w)
@CONMD equ scb$base+33h ; Console Mode Byte
; (byte, r/o)
@BNKBF equ scb$base+35h ; Address of 128 Byte Buffer
; for Banked BIOS (word, r/o)
@QueFl equ scb$base+39h ; Flag for BDOS requests to BIOS
; Bit 7&6 used (byte, r/o)
@CRDMA equ scb$base+3Ch ; Current DMA Address
; (word, r/o)
@CRDSK equ scb$base+3Eh ; Current Disk (byte, r/o)
@VINFO equ scb$base+3Fh ; BDOS Variable "INFO"
; (word, r/o)
@RESEL equ scb$base+41h ; FCB Flag (byte, r/o)
@FX equ scb$base+43h ; BDOS Function for Error
; Messages (byte, r/o)
@USRCD equ scb$base+44h ; Current User Code (byte, r/o)
@MLTIO equ scb$base+4Ah ; Current Multi-Sector Count
; (byte,r/w)
@ERMDE equ scb$base+4Bh ; BDOS Error Mode (byte, r/o)
@ERDSK equ scb$base+51h ; BDOS Error Disk (byte,r/o)
@MEDIA equ scb$base+54h ; Set by BIOS to indicate
; open door (byte,r/w)
@BFLGS equ scb$base+57h ; BDOS Message Size Flag (byte,r/o)
@DATE equ scb$base+58h ; Date in Days Since 1 Jan 78
; (word, r/w)
@HOUR equ scb$base+5Ah ; Hour in BCD (byte, r/w)
@MIN equ scb$base+5Bh ; Minute in BCD (byte, r/w)
@SEC equ scb$base+5Ch ; Second in BCD (byte, r/w)
?ERJMP equ scb$base+5Fh ; BDOS Error Message Jump
; (word, r/w)
@MXTPA equ scb$base+62h ; Top of User TPA
; (address at 6,7)(word, r/o)
end
«eof»