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SetCPU
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setcpu.i
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1990-11-03
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4KB
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192 lines
;======================================================================
;
; SetCPU V1.60
; by Dave Haynie, April 13, 1990
; Released to the Public Domain
;
; Assembly Header File
;
; All assembly files need this included
;
;======================================================================
;======================================================================
;
; Macros & constants used herein. The Manx assembler is supposed
; to handle the 68881 and some of the 68020/30 instructions, but
; these macros will help out on older assemblers, and complete the
; set of instructions I need.
;
;======================================================================
CALLSYS macro *
jsr LVO\1(A6)
endm
PMOVE_ macro *
ifc '\1','tc'
ifc '\2','(sp)'
dc.w $f017 ; PMOVE tc,(sp)
dc.w $4200
mexit
endc
ifc '\2','(a0)'
dc.w $f010 ; PMOVE tc,(a0)
dc.w $4200
mexit
endc
endc
ifc '\1','crp'
ifc '\2','(a0)'
dc.w $f010 ; PMOVE crp,(a0)
dc.w $4e00
mexit
endc
endc
ifc '\1','(a0)'
ifc '\2','crp'
dc.w $f010 ; PMOVE (a0),crp
dc.w $4c00
mexit
endc
ifc '\2','tc'
dc.w $f010 ; PMOVE (a0),tc
dc.w $4000
mexit
endc
endc
ifc '\1','(a1)'
ifc '\2','crp'
dc.w $f011 ; PMOVE (a1),crp
dc.w $4c00
mexit
endc
endc
endm
PFLUSHA_ macro *
dc.w $f000
dc.w $2400
endm
MOVEC_ macro *
ifc '\1','cacr'
ifc '\2','d0'
dc.w $4e7a ; MOVEC cacr,d0
dc.w $0002
mexit
endc
ifc '\2','d1'
dc.w $4e7a ; MOVEC cacr,d1
dc.w $1002
mexit
endc
endc
ifc '\2','cacr'
ifc '\1','d0'
dc.w $4e7b ; MOVEC d0,cacr
dc.w $0002
mexit
endc
ifc '\1','d1'
dc.w $4e7b ; MOVEC d1,cacr
dc.w $1002
mexit
endc
endc
ifc '\1','vbr'
ifc '\2','d0'
dc.w $4e7a ; MOVEC vbr,d0
dc.w $0801
mexit
endc
endm
CIB_ENABLE EQU 0
CIB_FREEZE EQU 1
CIB_ENTRY EQU 2
CIB_CLEAR EQU 3
CIB_BURST EQU 4
CDB_ENABLE EQU 8
CDB_FREEZE EQU 9
CDB_ENTRY EQU 10
CDB_CLEAR EQU 11
CDB_BURST EQU 12
CDB_WALLOC EQU 13
CIB_ENABLE40 EQU 15
CDB_ENABLE40 EQU 31
AFB_68030 EQU 2
AFB_68040 EQU 3
AFB_68882 EQU 5
ATNFLGS EQU $129
LVOSupervisor EQU -30
LVOSuperState EQU -150
LVOFindTask EQU -294
LVOAllocTrap EQU -342
LVOFreeTrap EQU -348
LVOCacheClearU EQU -636
LVOCacheControl EQU -648
ANYCREG EQU $00dff010
;======================================================================
;
; Need just a little more stuff
;
;======================================================================
NOLIST
include "exec/types.i"
include "exec/execbase.i"
include "exec/tasks.i"
LIST
;======================================================================
;
; The assembly version of my tag structure
;
;======================================================================
STRUCTURE TAG,0
ULONG TAG_TAGSIZE ; Size of this tag
ULONG TAG_PROGVER ; The program version
APTR TAG_MAINTABLE ; The main ROM table
APTR TAG_ROMHI ; The main ROM image
UWORD TAG_ROMTYPE ; Type of MMU ROM
UWORD TAG_PATCHES ; The number of other patches applied
APTR TAG_PATCHLIST ; List of installed patches
APTR TAG_DEVS ; Translated device ROMs
ULONG TAG_TC ; Precomputed TC used for KICK.
ULONG TAG_CRP_0 ; Precomputed CRP used for KICK.
ULONG TAG_CRP_1
UWORD TAG_CONFIG ; Configuration status.
ULONG TAG_BERRSIZE ; Size of bus error handler.
APTR TAG_OLDBERR ; The old BERR routine.
APTR TAG_BERRHANDLER ; My BERR routine.
SHORT TAG_WRAPUP ; Upper address wrap bound.
SHORT TAG_WRAPDOWN ; Lower address wrap bound.
ULONG TAG_TABLESIZE ; Main table size.
APTR TAG_RESETCODE ; Actual reset routine
ULONG TAG_ROMSIZE ; Size of ROM image
ULONG TAG_ROMLOC ; Where does the fool thing go?
ULONG TAG_ROMSTART ; And where do we start it up?
APTR TAG_ROMLO ; Secondary ROM image, if needed
APTR TAG_SYSSTACK ; Physical system stack image
ULONG TAG_SYSSTKSIZE ; System Stack allocated size
ULONG TAG_RESETSIZE ; Size of the reset code.
APTR TAG_OLDRESET ; Old Reset Code
LABEL TAG_SIZE
;TAG_TC EQU 28
;TAG_CRP_0 EQU 32
;TAG_RESETCODE EQU 62
;TAG_ROMSTART EQU 74
machine mc68020
mc68881