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ExecBase.i
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1991-09-07
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{
ExecBase.i for PCQ Pascal
}
{$I "Include:Exec/Lists.i"}
{$I "Include:Exec/Interrupts.i"}
{$I "Include:Exec/Libraries.i"}
{$I "Include:Exec/Tasks.i"}
type
ExecBase = record
LibNode : Library;
SoftVer : Short; { kickstart release number }
LowMemChkSum : Short;
ChkBase : Integer; { system base pointer complement }
ColdCapture : Address; { coldstart soft vector }
CoolCapture : Address;
WarmCapture : Address;
SysStkUpper : Address; { system stack base (upper bound) }
SysStkLower : Address; { top of system stack (lower bound) }
MaxLocMem : Integer;
DebugEntry : Address;
DebugData : Address;
AlertData : Address;
MaxExtMem : Address; { top of extended mem, or null if none }
ChkSum : Short;
{***** Interrupt Related **************************************}
IntVects : Array [0..15] of IntVector;
{***** System Variables ***************************************}
ThisTask : TaskPtr; { pointer to current task }
IdleCount : Integer; { idle counter }
DispCount : Integer; { dispatch counter }
Quantum : Short; { time slice quantum }
Elapsed : Short; { current quantum ticks }
SysFlags : Short; { misc system flags }
IDNestCnt : Byte; { interrupt disable nesting count }
TDNestCnt : Byte; { task disable nesting count }
AttnFlags : Short; { special attention flags }
AttnResched : Short; { rescheduling attention }
ResModules : Address; { resident module array pointer }
TaskTrapCode : Address;
TaskExceptCode : Address;
TaskExitCode : Address;
TaskSigAlloc : Integer;
TaskTrapAlloc : Short;
{***** System Lists *******************************************}
MemList,
ResourceList,
DeviceList,
IntrList,
LibList,
PortList,
TaskReady,
TaskWait : List;
SoftInts : Array [0..4] of SoftIntList;
{***** Other Globals ******************************************}
LastAlert : Array [0..3] of Integer;
{ these next two variables are provided to allow
** system developers to have a rough idea of the
** period of two externally controlled signals --
** the time between vertical blank interrupts and the
** external line rate (which is counted by CIA A's
** "time of day" clock). In general these values
** will be 50 or 60, and may or may not track each
** other. These values replace the obsolete AFB_PAL
** and AFB_50HZ flags.
}
VBlankFrequency : Byte;
PowerSupplyFrequency : Byte;
SemaphoreList : List;
{ these next two are to be able to kickstart into user ram.
** KickMemPtr holds a singly linked list of MemLists which
** will be removed from the memory list via AllocAbs. If
** all the AllocAbs's succeeded, then the KickTagPtr will
** be added to the rom tag list.
}
KickMemPtr : Address; { ptr to queue of mem lists }
KickTagPtr : Address; { ptr to rom tag queue }
KickCheckSum : Address; { checksum for mem and tags }
ExecBaseReserved : Array [0..9] of Byte;
ExecBaseNewReserved : Array [0..19] of Byte;
end;
ExecBasePtr = ^ExecBase;
{****** AttnFlags }
const
{ Processors and Co-processors: }
AFB_68010 = 0; { also set for 68020 }
AFB_68020 = 1;
AFB_68881 = 4;
AFF_68010 = 1;
AFF_68020 = 2;
AFF_68881 = 16;
{ These two bits used to be AFB_PAL and AFB_50HZ. After some soul
** searching we realized that they were misnomers, and the information
** is now kept in VBlankFrequency and PowerSupplyFrequency above.
** To find out what sort of video conversion is done, look in the
** graphics subsytem.
}
AFB_RESERVED8 = 8;
AFB_RESERVED9 = 9;