Developer CD Series 1989 April: Phil & Dave's Excellent CD

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Text File | 1988-11-30 | 25.4 KB | 755 lines | [TEXT/MPS ]

; Version: 1.04 ; Created: Tuesday, August 2, 1988 at 9:29:09 PM ; ; File: HardwareEqu.a ; ; Assembler Interface to the Macintosh Libraries ; Copyright Apple Computer, Inc. 1984-1988 ; All Rights Reserved ; ;-------------------------------------------------------------------- ; ; The following information was formerly in "private" files that were ; not released to the general developer community. ; ; The information in this file is not needed for normal application ; development. These equates and macros were necessary for development ; of the Macintosh ToolBox and Operating System, and are likely to be ; dependent on their current implementation. Use of any information ; in this file is likely to cause your software to fail on future ; versions of Macintosh system software or hardware. ; ; Apple Developer Support will not support any use of the following ; information. ; ; In order to prevent any "accidental" use of this information, it has ; been disabled using the conditional-assembly variable, HWNonPortable, ; defined below. If you change this to a non-zero value, you're on your ; own. Since this gives hardware specific equates, we must also define ; which type of Mac we are assembling for. Define the following variable: ; ; onMac if for 128K, 512K, 512Ke, or Mac+ ; onMacPP if for MacSE ; onNuMac if for Macintosh II ; ; Hardware Equates -- This file defines the low-level equates for the ; Macintosh hardware interface. ;-------------------------------------------------------------------- ; If HWNonPortable is defined to be non-zero, Then a machine type must be specified! IF (&TYPE('HWNonPortable') = 'UNDEFINED') THEN HWNonPortable EQU 0 ENDIF IF HWNonPortable THEN IF (&TYPE('onMac') = 'UNDEFINED') THEN onMac EQU 1 ENDIF IF (&TYPE('onMacPP') = 'UNDEFINED') THEN onMacPP EQU 0 ENDIF IF (&TYPE('onNuMac') = 'UNDEFINED') THEN onNuMac EQU 0 ENDIF ; Machine Configuration IF onMac THEN ; ----- Mac ----- machine EQU 0 rom85Bits EQU $7F ; New ROMs, No Power Off. ELSEIF onNuMac THEN ; ----- NuMac ----- machine EQU 1 rom85Bits EQU $3F ; New ROMs, Power Off ability. ELSEIF onMacPP THEN ; ----- MacPP ----- machine EQU 2 rom85Bits EQU $7F ; New ROMs, No Power Off. ENDIF DiagROM EQU $F80000 ; Alternate ROM - initial vector DiagROM1 EQU $F80080 ; Alternate ROM - memory sizing vector DiagROM2 EQU $F80088 ; Alternate ROM - init I/O vector PhaseRead EQU $F00000 ; Phase read address (StartMain) ;---------- ; Processor Interrupt Masks ;---------- IF onMac|onMacPP THEN ; ----- Mac, MacPP ----- hiIntMask EQU $0300 loIntMask EQU $0100 viaIntMask EQU $0100 ; mask for VIA (and VBL) interrupts sccEnblMask EQU $F9FF ; mask to enable SCC interrupts sccIntMask EQU $200 ; SCC interrupt vector ELSEIF onNuMac THEN ; ----- NuMac ----- hiIntMask EQU $0700 ; mask for all interrupts sccIntMask EQU $0400 ; SCC interrupt vector via2IntMask EQU $0200 ; VIA2 interrupt vector slotIntMask EQU via2IntMask ; slot's interrupt vector viaIntMask EQU $0100 ; VIA interrupt vector loIntMask EQU $0100 sccEnblMask EQU $FBFF ; mask to enable SCC interrupts pwrOffEnbl EQU $2500 ; mask to allow poweroff interrupts ELSEIF onMacXL THEN ; ----- MacXL ----- hiIntMask EQU $0600 ; mask for all interrupts (except NMI) loIntMask EQU $0100 ENDIF ;---------- ; Timing constants ;---------- IF onMac|onMacPP THEN ; ----- Mac, MacPP ----- oneSec EQU 95528 ; looptimes halfSec EQU oneSec/2 oneSecTicks EQU 60 ; ticks, of course stlDelay EQU $30 ; default bus settle delay ELSEIF onNuMac THEN ; ----- NuMac ----- oneSec EQU 382112 ; looptimes halfSec EQU oneSec/2 oneSecTicks EQU 60 ; ticks, of course stlDelay EQU $30 ; default bus settle delay ENDIF ;---------- ; Toolbox Trap Table equates ;---------- numOsTrap EQU 256 ; number of os traps IF onMac THEN ; ----- Mac ----- ToolTable EQU $0C00 ; start of toolbox trap table ELSE ; ----- Everyone Else ----- ToolTable EQU $0E00 ; start of toolbox trap table ENDIF IF onMac|onMacPP THEN ; ----- Mac, MacPP ----- numTbTrap EQU 512 ; number of toolbox traps numTrapMask EQU $01FF ; mask for number of tb traps ELSEIF onNuMac THEN ; ----- NuMac ----- numTbTrap EQU 1024 ; number of toolbox traps numTrapMask EQU $03FF ; mask for number of tb traps ENDIF ;---------- ; Screen, Sound, ROM, RAM addresses ;---------- ramChk EQU 1024 ; Amount of memory tested for stack. OvlyRAM EQU $600000 ; low RAM address when overlay is on OvlyScreen EQU $67A700 ; top of screen with overlay IF onMac|onMacPP THEN ; ----- Mac, MacPP ----- SoundLow EQU $3FFD00 ; sound buffer start address PWMBuffer EQU $3FFD01 ; PWM bytes are low bytes ROMStart EQU $400000 ; starting address of ROM code ScreenLow EQU $3FA700 ; top of screen screen address SERegs EQU $3FFC80 ; Sys Error Regs w/o Overlay SEScrnNum EQU $3FD3DD ; Sys Error Number Screen address =$7CB5E+64*34 - 1 ; "vaguely centered" plus 34 scanlines -1 for extra digit SEScrnInc EQU $3FD5DF ; address to diddle below death number SEScrnIcon EQU $3FCB5E ; centered screen addr for Mac icons SEScrnFace EQU $3FCCDF ; screen addr for face SEScrnI2 EQU $3FCF1F ; screen addr for boot icon overlay ELSEIF onNuMac THEN ; ----- NuMac ----- ROMStart EQU $40800000 ; starting address of final ROM code ROM_hi EQU $40 ; high byte of ROM address MaxAdr EQU $800000 ; max RAM search address (8 MB) ramSiz EQU $40 ; VIA2 bits setting to control RAM size SERegs EQU $0C30 ; offset to Sys Error Regs w/o Overlay SEOvlyRegs EQU SERegs ; no overlay space for NuMac ; offsets to various screen locations (tied to base address of screen) SEScrnNum EQU $57A7 ; Sys Error Number Screen address = $46A8+(128*34) - 1 ; "vaguely centered" plus 34 scanlines -1 for extra digit SEScrnInc EQU $4AAA ; address to diddle below death number=$46A8+(128*8)+2 SEScrnIcon EQU $46A8 ; centered screen addr for NuMac icons SEScrnFace EQU $49A9 ; screen addr for face = $46A8+(128*6)+1 SEScrnI2 EQU $4E29 ; screen addr for boot icon overlay=$46A8+(128*15)+1 ENDIF IF onMac THEN ; ----- Mac ----- ROMDoEject EQU $40001E ; jump to DoEject utility HeapStart EQU $1400 ; Mac Plus starting point defSysHeap EQU $B700 ; Default size of the system heap nDfltStackSize EQU $2000 ; Default stack size ENDIF IF onMacPP THEN ; ----- MacPP ----- ROMDoEject EQU $40001E ; jump to DoEject utility HeapStart EQU $1600 ; Aladdin starting point defSysHeap EQU $18000 ; Default size of the system heap nDfltStackSize EQU $2000 ; Default stack size ENDIF IF onNuMac THEN ; ----- NuMac ----- ROMDoEject EQU $4080001E ; jump to DoEject utility HeapStart EQU $1E00 ; need extra lomem for color quickdraw defSysHeap EQU $18000 ; Default size of the system heap nDfltStackSize EQU $6000 ; Default stack size ENDIF ;---------- ; Screen, sound, ROM, RAM constants & offsets ;---------- ; Following should be defined for only Mac & ; MacPP, but this info not in video ROMS yet... scrnHorRes EQU 72 ; number of dots per inch horizontally scrnVertRes EQU 72 ; number of dots per inch vertically pwm2MemTop EQU $2FF ; PWMBuffer to MemTop snd2MemTop EQU $300 ; SoundLow to Memtop sndBufWLen EQU $0172 ; sound/disk buffer word length IF onMac|onMacPP THEN ; ----- Mac, MacPP ----- scrn2MemTop EQU $5900 ; ScreenBase to Memtop scrnRowB EQU 64 ; bytes per scan line maxX EQU 512 ; number of pixels horizontally maxY EQU 342 ; number of pixels vertically screenWidth EQU maxX ; screen width screenHeight EQU maxY ; screen height scrnBytes EQU 21888 ; scrnRowB*maxY bufWorldSize EQU scrn2MemTop ; total size of the BufPtr world ELSEIF onNuMac THEN ; ----- NuMac ----- bufWorldSize EQU snd2MemTop ; total size of the BufPtr world ENDIF IF onMac THEN ; ----- Mac ----- romWSize EQU $10000 ; 64K words in present ROM romBSize EQU $20000 ; 128K bytes in present ROM ELSEIF onNuMac|onMacPP THEN ; ----- NuMac, MacPP ----- romWSize EQU $20000 ; 128K words in present ROM romBSize EQU $40000 ; 256K bytes in present ROM ENDIF ;---------- ; Deep Shit Rectangle info ;---------- IF onMac|onMacPP THEN ; ----- Mac, MacPP ----- dsRectTL EQU $00400020 ; top left = 64,32 dsRectBR EQU $00BE01E0 ; bottom right = 190,480 ELSEIF onNuMac THEN ; ----- NuMac ----- dsRectTL EQU $00400020 ; top left = 64,32 dsRectBR EQU $00BE01E0 ; bottom right = 190,480 dsRectHei EQU (dsRectBR**$FFFF0000)-(dsRectTL**$FFFF0000)>>16 dsRectLen EQU (dsRectBR**$FFFF)-(dsRectTL**$FFFF) ENDIF ;---------- ; System Error, ROM Based Debugger Nub, MicroBug Equates ;---------- IF onMac|onMacPP|onNuMac THEN ; ----- Mac, MacPP, NuMac ----- SEVars EQU SERegs ; start of system error data space (wrap city) seVSize EQU 128 ; # of bytes in space SED0 EQU SEVars ; loc of saved reg D0 SEA0 EQU SED0+32 ; loc of saved reg A0 SEA7 EQU SEA0+28 ; loc of saved reg A7 SEPC EQU SEA7+4 ; loc of saved PC SESR EQU SEPC+4 ; loc of saved SR SEAccess EQU SESR+2 ; PC address during bus/address error SECmdSize EQU SEAccess+4 ; # of bytes of parameters passed in _debugger call SE000BE EQU SECmdSize+2 ; 8 bytes of bus error info for 68000 SELastVar EQU SE000BE+8 ; last var in System Error data space ;----- ; ROM based debugger nub ;----- rdPort EQU SELastVar ; Number of port currently in use (0 => no link, 1 => A, 2 => B) rdCode EQU rdPort+2 ; Ptr to code download buffer. rdAtrap EQU rdCode+4 ; Saved Rom Atrap handler rdLowTrap EQU rdAtrap+4 ; low value for trap handling rdHiTrap EQU rdLowTrap+2 ; high value for trap handling rdResult EQU rdHiTrap+2 ; result of executing down-loaded code, etc. (16 bytes) rdEnd EQU rdResult+16 ; end of vars ;----- ; Microbug ;----- ; NOTE: Keep mbDotAddr immediately before mBlocAddr mbBufSize EQU 34 mbBuffer EQU SELastVar ; buffer for input mbSign EQU mbBuffer+mbBufSize ; ST => negative sign during conversion mbDotAddr EQU mbSign+2 ; saved address mBlocAddr EQU mbDotAddr+4 ; saved location ENDIF ;---------- ; VIA (6522) interface chip addresses ;---------- IF onMac|onMacPP THEN ; ----- Mac, MacPP ----- VBase EQU $EFE1FE ; base address AVBufB EQU $EFE1FE ; buffer B AVBufA EQU $EFFFFE ; buffer A AVBufM EQU $EFE1FE ; buffer with mouse button bit AVIFR EQU $EFFBFE ; interrupt flag register AVIER EQU $EFFDFE ; interrupt enable register ELSEIF onNuMac THEN ; ----- NuMac ----- VBase EQU $50F00000 ; base address AVBufB EQU VBase ; buffer B AVBufA EQU $50F01E00 ; buffer A AVBufM EQU VBase ; buffer with mouse button bit AVIFR EQU $50F01A00 ; interrupt flag register AVIER EQU $50F01C00 ; interrupt enable register VBase2 EQU $50F02000 ; base for 2nd VIA ENDIF ;---------- ; VIA offsets ;---------- IF onMac|onMacPP|onNuMac THEN ; ----- Mac, MacPP, NuMac ----- vBufB EQU 0 ; BUFFER B vBufAH EQU $200 ; buffer a (with handshake) [ Dont use! ] vDIRB EQU $400 ; DIRECTION B vDIRA EQU $600 ; DIRECTION A vT1C EQU $800 ; TIMER 1 COUNTER (L.O.) vT1CH EQU $A00 ; timer 1 counter (high order) vT1L EQU $C00 ; TIMER 1 LATCH (L.O.) vT1LH EQU $E00 ; timer 1 latch (high order) vT2C EQU $1000 ; TIMER 2 LATCH (L.O.) vT2CH EQU $1200 ; timer 2 counter (high order) vSR EQU $1400 ; SHIFT REGISTER vACR EQU $1600 ; AUX. CONTROL REG. vPCR EQU $1800 ; PERIPH. CONTROL REG. vIFR EQU $1A00 ; INT. FLAG REG. vIER EQU $1C00 ; INT. ENABLE REG. vBufA EQU $1E00 ; BUFFER A vBufD EQU $1E00 ; disk head select buffer ENDIF IF onMac THEN ; ----- Mac ----- ; === BUFFER A === vAOut EQU $7F ; VBufA output bits vAInit EQU $69 ; VBufA initial values (low volume) vSound EQU $7 ; sound volume bits vSndPg2 EQU 3 ; select sound page 2 if 0 vOverlay EQU 4 ; overlay bit (overlay when 1) vHeadSel EQU 5 vPage2 EQU 6 ; select video page 2 if 0 vSCCWrReq EQU 7 ; SCC write/request line ; === BUFFER B === vBOut EQU $87 ; VBufB output bits vBInit EQU $87 ; VBufB initial values rtcData EQU 0 rtcClk EQU 1 rtcEnb EQU 2 ; enabled when 0 vSW EQU 3 ; mouse switch (0 when down) vX2 EQU 4 ; mouse X level vY2 EQU 5 ; mouse Y level vH4 EQU 6 ; horizontal sync vSndEnb EQU 7 ; /sound enable (reset when 1) ELSEIF onMacPP THEN ; ----- MacPP ----- ; === BUFFER A === vAOut EQU $7F ; VBufA output bits vAInit EQU $69 ; VBufA initial values (low volume) vSound EQU $7 ; sound volume bits vSndPg2 EQU 3 ; select sound page 2 if 0 vDriveSel EQU 4 ; int drive select (lower drive when 1) vHeadSel EQU 5 vPage2 EQU 6 ; select video page 2 if 0 vSCCWrReq EQU 7 ; SCC write/request line ; === BUFFER B === vBOut EQU $C7 ; VBufB output bits vBInit EQU $C7 ; VBufB initial values rtcData EQU 0 rtcClk EQU 1 rtcEnb EQU 2 ; enabled when 0 vFDBInt EQU 3 ; Front Desk bus interrupt vFDesk1 EQU 4 ; bit for front desk bus vFDesk2 EQU 5 ; and another vH4 EQU 6 ; SCSI IRQ mask (was horiz. sync) vSndEnb EQU 7 ; /sound enable (reset when 1) ; ELSE ; ----- NuMac ----- ELSEIF onNuMac THEN ; ----- NuMac ----- ; === VIA1 BUFFER A === vAOut EQU $3F ; VBufA output bits vAInit EQU $01 ; VBufA initial values (low volume) vSound EQU $7 ; sound volume bits (1..3) vSync EQU 3 ; Synchronous modem vOverlay EQU 4 ; overlay bit (overlay when 1) vHeadSel EQU 5 ; head select line for Sony vRev8Bd EQU 6 ; =0 for rev 8 board vSCCWrReq EQU 7 ; SCC write/request line ; === VIA1 BUFFER B === vBOut EQU $87 ; VBufB output bits vBInit EQU $07 ; VBufB initial values vRTCData EQU 0 ; real time clock data vRTCClk EQU 1 ; real time clock clock pulses vRTCEnb EQU 2 ; clock enable (0 for enable) vFDBInt EQU 3 ; Front Desk bus interrupt vFDesk1 EQU 4 ; bit for front desk bus vFDesk2 EQU 5 ; and another ; === VIA1 IFR bits === ifCA2 EQU 0 ; CA2, ONESEC interrupt ifCA1 EQU 1 ; CA1, VBL signal ifSR EQU 2 ; SR done, Serial i/o to Servo ifCB2 EQU 3 ; CB2, Clock data ifCB1 EQU 4 ; CB1, for clock pulse ifT2 EQU 5 ; T2, INDEX pulse counter (VBL ctr) ifT1 EQU 6 ; T1, (unused as interrupt) ifIRQ EQU 7 ; any interrupt ; === VIA2 BUFFER A === v2AOut EQU $C0 ; V2BufA output bits v2AInit EQU $00 ; V2BufA initial values v2RAMS EQU $C ; RAM size bits (6,7) v2IRQ1 EQU 0 ; slot 1 interrupt v2IRQ2 EQU 1 ; slot 2 interrupt v2IRQ3 EQU 2 ; slot 3 interrupt v2IRQ4 EQU 3 ; slot 4 interrupt v2IRQ5 EQU 4 ; slot 5 interrupt v2IRQ6 EQU 5 ; slot 6 interrupt v2RAM0 EQU 6 ; RAM size bit 0 v2RAM1 EQU 7 ; RAM size bit 1 ; === VIA2 BUFFER B === v2BOut EQU $80 ; V2BufB output bits v2BInit EQU $05 ; V2BufB initial values v2CDis EQU 0 ; cache disable (when 0) v2BusLk EQU 1 ; Bus lockout v2PowerOff EQU 2 ; soft power off signal (when 0) vFC3 EQU 3 ; PMMU FC3 indicator v2TM1A EQU 4 ; bit for NUBus v2TM0A EQU 5 ; and another v2SCSIRQ EQU 6 ; SCSI interrupt request v2VBL EQU 7 ; pseudo VBL signal ; ENDIF ; {onOldNu} ENDIF ; {onNuMac} ;---------- ; Timing constants ;---------- IF onMac|onMacPP THEN ; ----- Mac, MacPP ----- ticksPr100 EQU 78 ; timer 1 setting for 100 usec intervals oneSecConst EQU 2 ; gets converted to $20000 for oneSec constant flashDly EQU 4 ; icon flash delay count nTicks EQU 780 ; 780 ticks per msec ELSEIF onNuMac THEN ; ----- NuMac ----- ticksPr100 EQU 78 ; timer 1 setting for 100 usec intervals oneSecConst EQU 8 ; gets converted to $80000 for oneSec constant flashDly EQU 8 ; icon flash delay count onemsDBRA EQU $0A3C ; about 1ms DBRA loop for Mac ][ (same as TimeDBRA) nTicks EQU 780 ; 780 ticks per msec ENDIF ;---------- ; SCC Serial Chip Addresses ;---------- IF onMac|onMacPP THEN ; ----- Mac, MacPP ----- SCCRBase EQU $9FFFF8 ; SCC base read address SCCWBase EQU $BFFFF9 ; SCC base write address ELSEIF onNuMac THEN ; ----- NuMac ----- SCCRBase EQU $50F04000 ; SCC base read address SCCWBase EQU $50F04000 ; SCC base write address ENDIF ;---------- ; SCC Offsets ;---------- aData EQU 6 ; offset for A channel data aCtl EQU 2 ; offset for A channel control bData EQU 4 ; offset for B channel data bCtl EQU 0 ; offset for B channel control sccData EQU 4 ; general offset for data from control rxBF EQU 0 ; SCC receive buffer full txBE EQU 2 ; SCC transmit buffer empty IF onMac|onMacPP THEN ; ----- Mac, MacPP ----- sccWrite EQU $200001 ; general offset for write from read ELSEIF onNuMac THEN ; ----- NuMac ----- sccWrite EQU $0 ; general offset for write from read ENDIF ;---------- ; SCC Clock Rates, Baud Rate Constants ;---------- macClock EQU 36707 ; in Hz * 100 midMacClock EQU 39168 nuMacClock EQU 36864 lisaAClock EQU 40000 ; port A clock lisaBCLock EQU 36864 ; port B clock macConst EQU 114709 ; in Hz/32 midMacConst EQU 122400 nuMacConst EQU 115200 lisaAConst EQU 125000 lisaBConst EQU 115200 ;---------- ; IWM Chip Addresses ;---------- IF onMac|onMacPP THEN ; ----- Mac, MacPP ----- DBase EQU $DFE1FF ; disk address base DPh0L EQU $DFE1FF ; phase 0 low DPh0H EQU $DFE3FF ; phase 0 high DMtrOff EQU $DFF1FF ; IWM Motor off DMtrOn EQU $DFF3FF ; IWM Motor on DiskQ6L EQU $DFF9FF ; shift register DiskQ6H EQU $DFFBFF DiskQ7L EQU $DFFDFF DiskQ7H EQU $DFFFFF ELSEIF onNuMac THEN ; ----- NuMac ----- OldIWMBase EQU $50F1C000 ; old disk address base NewIWMBase EQU $50F16000 ; new disk address base ENDIF ;---------- ; IWM Offsets ;---------- ph0L EQU 0 ; disk address offsets from base ph0H EQU $200 ph1L EQU $400 ph1H EQU $600 ph2L EQU $800 ph2H EQU $A00 ph3L EQU $C00 ph3H EQU $E00 mtrOff EQU $1000 mtrOn EQU $1200 intDrive EQU $1400 ; enable internal drive address extDrive EQU $1600 ; enable external drive address q6L EQU $1800 q6H EQU $1A00 q7L EQU $1C00 q7H EQU $1E00 ;---------- ; Interrupt Auto-vector and Exception Definitions ;---------- Line1010 EQU $28 ; 1010 emulator trap (system routines) Line1111 EQU $2C ; 1111 emulator trap (reserved) FmtErrVect EQU $38 ; format error vector for 68010/68020 AutoInt1 EQU $64 ; level 1 auto-vector AutoInt2 EQU $68 ; level 2 auto-vector AutoInt3 EQU $6C ; level 3 auto-vector AutoInt4 EQU $70 ; level 4 auto-vector AutoInt5 EQU $74 ; level 5 auto-vector AutoInt6 EQU $78 ; level 6 auto-vector AutoInt7 EQU $7C ; level 7 auto-vector ;---------- ; 53C80 SCSI Chip Addresses ;---------- IF onMac THEN ; ----- Mac ----- SCSIRd EQU $580000 ; base addr SCSI interface - READ SCSIWr EQU $580001 ; base addr SCSI interface - WRITE wrOffs EQU 1 ; write addrs are +1 to the read base ELSEIF onMacPP THEN ; ----- MacPP ----- SCSIRd EQU $5FF000 ; base addr SCSI interface - READ SCSIWr EQU $5FF001 ; base addr SCSI interface - WRITE MacSCSIBase EQU $5FF000 ; base addr SCSI READ interface MacSCSIDMA EQU $5FF200 ; base addr SCSI DMA MacSCSIHsk EQU $5FF200 ; base addr SCSI handshake wrOffs EQU 1 ; write addrs are +1 to the read base TimeSCSIDB EQU $0B24 ; DBRAs & SCSI access per millisecond ELSEIF onNuMac THEN ; ----- NuMac ----- OldSCSIBase EQU $50F10000 ; base addr SCSI interface OldSCSIDMA EQU $50F14000 ; base addr SCSI DMA OldSCSIHsk EQU $50F08000 ; base addr handshake NewSCSIBase EQU $50F10000 ; rev8 base addr SCSI interface NewSCSIDMA EQU $50F12000 ; rev8 base addr SCSI DMA (corrected) NewSCSIHsk EQU $50F06000 ; rev8 base addr SCSI handshake wrOffs EQU 0 ; write addrs are same as read base SCSIVct EQU AutoInt3 ; SCSI int at level 3 TimeSCSIDB EQU $0DA6 ; DBRAs & SCSI access per millisecond ENDIF ;---------- ; 53C80 Register Defs, Offsets ;---------- IF onMac|onMacPP THEN ; ----- Mac, MacPP ----- ;(these are handshaking on MacPP) dACKRd EQU $200 ; offset of psuedo-DMA - READ dACKWr EQU $200 ; offset of psuedo-DMA - WRITE ENDIF sCDR EQU $00 ; Current SCSI Read Data sODR EQU $00 ; Output data register sICR EQU $10 ; Initiator Command Register - READ/WRITE iRST EQU $80 ; *RST asserted iAIP EQU $40 ; arbitration in progress (read) bAIP EQU 6 ; bit test for arbitration in progress aTMD EQU $40 ; assert Test Mode (write) iLA EQU $20 ; Lost arbitration (read) bLA EQU 5 ; bit test for Lost Arbitration aDIFF EQU $20 ; assert Differential enable (write) iACK EQU $10 ; *ACK is asserted iBSY EQU $08 ; *BSY is asserted iSEL EQU $04 ; *SEL is asserted iATN EQU $02 ; *ATN is asserted iDB EQU $01 ; Data bus is asserted sMR EQU $20 ; Mode Register - READ/WRITE iBDMA EQU $80 ; Block Mode DMA iTGT EQU $40 ; Target Mode iPTY EQU $20 ; Enable Parity Checking iIPTY EQU $10 ; Enable Parity interrupt iIEOP EQU $08 ; Enable EOP interrupt iMBSY EQU $04 ; Monitor BSY iDMA EQU $02 ; DMA Mode iARB EQU $01 ; Arbitration sTCR EQU $30 ; Target Command Register - READ/WRITE iREQ EQU $08 ; Assert *REQ iMSG EQU $04 ; Assert *MSG iCD EQU $02 ; Assert C/*D iIO EQU $01 ; Assert I/*O sCSR EQU $40 ; Current SCSI Bus Status (READ) aRST EQU $80 ; *RST aBSY EQU $40 ; *BSY bBSY EQU 6 ; bit test for *BSY aREQ EQU $20 ; *REQ bREQ EQU 5 ; bit test for *REQ aMSG EQU $10 ; *MSG bMSG EQU 4 ; bit test for *MSG aCD EQU $08 ; C/*D bCD EQU 3 ; bit test for C/*D aIO EQU $04 ; I/*O bIO EQU 2 ; bit test for I/*O aSEL EQU $02 ; *SEL bSEL EQU 1 ; bit test for *SEL aDBP EQU $01 ; *DBP sSER EQU $40 ; Select Enable Register (WRITE) sBSR EQU $50 ; Bus & Status Register (READ) iEDMA EQU $80 ; End of DMA bEDMA EQU 7 ; bit test for end of DMA iDMAR EQU $40 ; DMA Request bDMAR EQU 6 ; bit test for DMA Req iPERR EQU $20 ; Parity Error iIREQ EQU $10 ; Interrupt Request bIREQ EQU 4 ; bit test for interrupt iPM EQU $08 ; Phase Match bPM EQU 3 ; bit test for Phase Match iBERR EQU $04 ; Bus Error ATN EQU $02 ; *ATN ACK EQU $01 ; *ACK bACK EQU 0 ; bit test for ACK sDMAtx EQU $50 ; DMA Transmit Start (WRITE) sIDR EQU $60 ; Data input register (READ) sTDMArx EQU $60 ; Start Target DMA receive (WRITE) sRESET EQU $70 ; Reset Parity/Interrupt (READ) sIDMArx EQU $70 ; Start Initiator DMA receive (WRITE) ;---------- ; Apple Sound Chip Addresses ;---------- IF onNuMac THEN ; ----- NuMac ----- ;SoundChip EQU $50F18000 ; Base of sound chip's address space OldSndBase EQU $50F18000 ; old sound chip's base address NewSndBase EQU $50F14000 ; rev8 sound chip's base address ENDIF ;---------- ; Hardware configuration bits. ;---------- ;the following goes with hwCfgFlags hwCbSCSI EQU 15 ; SCSI port present hwCbClock EQU 14 ; New clock chip present hwCbExPRAM EQU 13 ; Extra Parameter Ram valid. hwCbFPU EQU 12 ; FPU chip present. hwCbMMU EQU 11 ; Some kind of MMU present (see MMUType for what kind). hwCbADB EQU 10 ; Apple Desktop Bus present. hwCmSCSI EQU (1 << hwCbSCSI) hwCmClock EQU (1 << hwCbClock) hwCmExPRAM EQU (1 << hwCbExPRAM) hwCmFPU EQU (1 << hwCbFPU) hwCmMMU EQU (1 << hwCbMMU) hwCmADB EQU (1 << hwCbADB) fpuIn EQU 12 ; bit 12 - FPU chip installed IF onMac THEN hwCfgBits EQU hwCmSCSI++hwCmClock ELSEIF onMacPP THEN hwCfgBits EQU hwCmSCSI++hwCmClock++hwCmADB ELSEIF onNuMac THEN hwCfgBits EQU hwCmSCSI++hwCmClock++hwCmFPU++hwCmMMU++hwCmADB ELSE AERROR 'WARNING: Unknown machine type (hwCfgBits).' ENDIF ; Screen, Sound, ROM, RAM Constants IF onMac|onMacPP THEN dVertRRate EQU 60 ENDIF ENDIF