mirror of
https://github.com/elliotnunn/sys7.1-doc-wip.git
synced 2024-12-12 04:29:09 +00:00
154 lines
7.6 KiB
Plaintext
154 lines
7.6 KiB
Plaintext
;
|
||
; File: BootEqu.a
|
||
;
|
||
; Contains: equates for the boot time environment
|
||
;
|
||
; Copyright: © 1989-1994 by Apple Computer, Inc., all rights reserved.
|
||
;
|
||
; Change History (most recent first):
|
||
;
|
||
; <SM8> 2/6/94 IH Added ROM version equates.
|
||
; <SM7> 3/11/93 SAM Added sgEDiskStealFLag to boot globs that tells the MMU init
|
||
; code whether or not to steal RAM chunks from the map.
|
||
; <SM6> 2/20/93 SAM Added emuWarmStartConst - a new warmstart flag for the native
|
||
; startup code. Too bad Paula is 5 characters...
|
||
; <SM5> 8/19/92 CSS Update from Reality:
|
||
; <11> 8/18/92 DTY Change the name of BootGlobs, which is used by the ROM Start
|
||
; Manager to StartGlobals to avoid confusion with BootGlobals,
|
||
; which is used by the boot code in Boot[1-3].a.
|
||
; <SM4> 8/17/92 CCH Added scratch area in boot globs.
|
||
; <10> 7/1/92 DTY #1031401: Bump the slop in the system heap up from 44K to 64K.
|
||
; This gives a little more room for 'PACK' resource to get loaded
|
||
; when the system heap is packed down in low memory conditions.
|
||
; <9> 5/28/92 DTY #1030972: Add systemEnabledBit. 'boot' 2 will set this bit if it
|
||
; couldn’t find any Gibblies to boot the machine. 'boot' 3 will
|
||
; check this bit and display the “This disk is too old to be used
|
||
; on this Macintosh.” message.
|
||
; <8> 1/23/92 KC Roll in Terror patches from BootEqu.a. Original comments follow.
|
||
; {2} 12/20/90 CCH Added defStackAddr equate.
|
||
; <7> 1/17/92 DTY Take the kROMVersion equates out of this file; they’re defined
|
||
; in LinkedPatchMacros.a
|
||
; <6> 1/14/92 csd Move the BootGlobals record here from BootCode.a and
|
||
; StartSystem.a so we don’t have to keep the two versions in sync.
|
||
; NOTE: BootGlobals is not the same as BootGlobs!
|
||
; <5> 12/30/91 RB Added space for Edisk variables in the BootGlobals record.
|
||
; <4> 8/21/91 JSM Clean up header.
|
||
; <3> 1/30/91 gbm sab, #38: Change the ‘already including this file’ variable to
|
||
; all uppercase (for security reasons)
|
||
; <1.3> 5/30/89 rwh moved warm start to near top of boot globals record. Added
|
||
; bgTopOff, bgPhysicalTableOff.
|
||
; <1.2> 5/26/89 rwh renamed BootGlobs fields for consistency. Added HoleSysHeap,
|
||
; HoleLowMem.
|
||
; <1.1> 5/16/89 rwh added warm start to the boot globals record
|
||
; <1.0> 5/13/89 rwh New today
|
||
;
|
||
|
||
IF &TYPE('__INCLUDINGBOOTEQU__') = 'UNDEFINED' THEN
|
||
__INCLUDINGBOOTEQU__ SET 1
|
||
|
||
StartGlobals RECORD {sgRamTable},DECR
|
||
sgTestSpace ds.l 2 ; 2 longs for diagnostics to trash
|
||
sgRamTable equ * ; table of start/size physical RAM, -1 ended
|
||
sgMaxChunks equ 8 ; maximum # RAM chunks we can accomodate
|
||
sgWarmStart ds.l 1 ; warm start constant
|
||
sgTopOff ds.l 1 ; offset to top of boot globals area
|
||
sgAllocOff ds.l 1 ; offset to bottom of allocated area
|
||
sgPhysicalTableOff ds.l 1 ; offset to physical space table (for VM et al)
|
||
sgTotalRAM ds.l 1 ; total RAM in the system
|
||
sgPhys2Log ds.l 1 ; physical to logical offset for MMU tables
|
||
sgMMFlags ds.b 1 ; memory manager start mode flags
|
||
sgTypeMMU ds.b 1 ; type of MMU
|
||
sg24Info ds.b MMUConfigInfo ; 24 bit mode MMU info
|
||
sg32Info ds.b MMUConfigInfo ; 32 bit mode MMU info
|
||
sgRamDiskSize ds.l 1 ; size of RAM disk, if any <5> rb
|
||
sgRamDiskBase ds.l 1 ; logical base of RAM disk, if any <5> rb
|
||
sgScratch ds.l 4 ; 4 longs of scratch space <SM11>
|
||
sgEDiskStealFlag ds.b 1 ; 1 byte flag to tell INIT code to steal RAM for the EDisk <SM7>
|
||
sgAlign ds.b 1 ; alignment
|
||
sgBottom equ * ; last field
|
||
ENDR
|
||
|
||
HoleSysHeap equ $38000000 ; start of system heap when using 'black hole'
|
||
HoleLowMem equ $10000 ; real RAM space for low mem w/'black hole'
|
||
|
||
defStackAddr EQU $180000 ; start stack at 1.5M for systems with ≥2 meg {2}
|
||
|
||
; From StartSystem.a and BootCode.a: <6>
|
||
|
||
BootGlobals record -400 ; offsets from A5 for boot time globals
|
||
initialSP equ * ; value of stack pointer during boot
|
||
paramBlock ds.b 194 ; 194 parameter block for file system and driver calls
|
||
quickDrawGlobals ds.b QDGlobals ; 206 QuickDraw globals
|
||
initialA5 equ * ; this is a place holder; it must be at offset 0
|
||
quickDrawGlobalsPtr ds.l 1 ; 4 pointer to QuickDraw globals
|
||
physicalMemTop ds.l 1 ; 4 MemTop as set from diagnostics
|
||
logicalMemTop ds.l 1 ; 4 MemTop after loading VM
|
||
postBootNewPtrStartup ds.l 1 ; 4 pointer to implementation of NewPtrStartup
|
||
bufPtrLimit ds.l 1 ; 4 barrier; how low bufPtr is allowed to go
|
||
resetFlag ds.w 1 ; 2 clear if don’t reset; -1 if do reset
|
||
reservedForAfterBoot ds.l 1 ; 4 minSysHeapFreeAfterBoot until launch time
|
||
ds.b 86 ; 86 padding (so we match the ROM boot code)
|
||
port ds.b portRec ; 108 GrafPort already opened by the boot code
|
||
fileName ds.b 256 ; 256 file name used by INIT file opening code
|
||
ds.b 148 ; 148 padding (so we match the ROM boot code)
|
||
initialA6 equ * ; value of A6 that the ROM boot code sets up
|
||
bootBlocks ds.b 1024 ; 1024 the boot blocks themselves
|
||
lowestBufPtr equ * ; here is the lowest that INITs can use
|
||
fileBuffer ds.b 524 ; 524 buffer used to load StartupScreen, MacsBug, etc.
|
||
size equ *-initialSP ; how big is this record, anyway?
|
||
endr
|
||
|
||
|
||
emuWarmStartConst equ 'SamB' ; Emulated Mac Warmstart constant <SM6>
|
||
|
||
processMgrCode0 equ -16470 ; resource ID of jump table for the Process Mgr.
|
||
|
||
; the following are the sizes of things
|
||
; the boot code has far-reaching responsibilities for making sure there is enough RAM
|
||
minRAMNeededToBoot equ 3*512*1024 ; 1.5 MB You just gotta have it.
|
||
|
||
; MacsBug sizes
|
||
debuggerGlobalSize equ 1*1024 ; size above BufPtr needed by MacsBug
|
||
|
||
; system heap sizes
|
||
initialSysHeapSize equ 700*1024 ; for Finder and 1 cdev
|
||
minSysHeapFreeForINIT equ 24*1024 ; minimum amount that INITs need in the system heap
|
||
minSysHeapFreeAfterBoot equ 100*1024 ; minimum amount that must remain free in system heap
|
||
sysHeapFreeSpaceSlop equ 16*1024 ; slop for MakeSysFree routine
|
||
minSysHeapFreeSpace equ 64*1024 ; this goes into emMinSysHeapFreeSpace for use by Finder & Process Mgr
|
||
|
||
; size of heap used to load INITs, script systems, and
|
||
minBootAppHeapSize equ 32*1024 ; smallest heap for INIT loading
|
||
|
||
; Process Mgr. sizes
|
||
processMgrStackSize equ 8*1024 ; stack size
|
||
minProcessMgrSpace equ 500*1024 ; stack & heap size for Finder and 1 cdev
|
||
|
||
;
|
||
elbowRoomCacheCantHave equ 400*1024 ; special-case adjustment to limit File Cache’s use of BufPtr <38>
|
||
|
||
systemEnabledBit equ 2 ; bit number to prevent booting the System on an unknown machine.
|
||
extensionsEnabledBit equ 5 ; bit number to disable extensions *** move to SysEqu.a?
|
||
ExtensionsEnabledByte equ $B20 ; byte to disable extensions *** move to SysEqu.a?
|
||
|
||
CurNamePtr equ CurApName+4 ; pointer to name of currently executing file
|
||
|
||
; IIci/Terror/Horror ROM minors ($67C)
|
||
kROMMajorIIci equ $67C ; IIci, Horror, Terror, Kaos
|
||
|
||
kROMMinorTERROR equ $15
|
||
kROMMinorTERROR2 equ $17 ; Zydeco's flavor of TERROR
|
||
kROMMinorDart equ $18 ; PowerBook 160,165,165c,180,180c version of HORROR.
|
||
kROMMinorSlice equ $24 ; Slice’s version of HORROR.
|
||
kROMMinorPO equ $26 ; Primus/Optimus HORROR.
|
||
kROMMinorEscher equ $27 ; PowerBook 270c’s ROM, a revision of HORROR.
|
||
kROMMinorYeager equ $29 ; Yeager’s flavor of HORROR.
|
||
kROMMinorBlackBird equ $30 ; BlackBird is using Kaos, which is a 2MB overpatch of HORROR.
|
||
|
||
; SuperMario ROM minors ($77D)
|
||
kROMMajorSuperMario equ $77D ; SuperMario
|
||
|
||
kROMMinorPDM equ $20 ; PDM, LAW, Cold Fusion using SuperMario.
|
||
kROMMinorSTP equ $21 ; STP using SuperMario.
|
||
|
||
ENDIF ; ...already included |