PR#3
PREFIX /A2OSX.BUILD
LOMEM $900
INC 1
AUTO 6
				.LIST OFF
*--------------------------------------
* KERNEL CONSTANTS DEFINITON
*--------------------------------------
K.ENV.SIZE		.EQ 256
K.FLT.MAX		.EQ 4
K.EVT.MAX		.EQ 8
K.DEV.MAX		.EQ 32
K.PS.MAX		.EQ 32
*--------------------------------------
* Kernel ZP 							Aux
*--------------------------------------
ZPKERNEL		.EQ $0
ZPPtr1			.EQ ZPKERNEL
ZPPtr2			.EQ ZPKERNEL+2
ZPPtr3			.EQ ZPKERNEL+4
ZPPtr4			.EQ ZPKERNEL+6
*--------------------------------------
ZPMEMMGR		.EQ $8
*--------------------------------------
*--------------------------------------
* $42-$47   ProDOS Block Device Drivers	Main
* $5E-$C8 	RESERVED APPLESOFT			Main/Aux (ROM Call, no need to switch back MainZP)
*--------------------------------------
* Memory Map
*--------------------------------------
A2osX.SaveSM	.EQ $100				Aux
A2osX.SaveSX	.EQ $101				Aux
*--------------------------------------
* Main $200 -> 2FF : (Used By ProDOS,Clock DRV....)
* Main $300 -> 3EF : <free>
* Main $3F0 -> 3FF : SYS Vectors (reset,IRQ...)
* Aux  $200 -> 3FD : /RAM Driver
* Aux  $3FE -> 3FF : IRQ Vector
*--------------------------------------
K.S.STAT		.EQ $0300				S.STAT for internal kernel operations
K.S.DEVSTAT		.EQ $0340				S.DEVSTAT=25 or higher depends on dev type
K.SP.PARAMS		.EQ $0380				Max 9 bytes
K.MLI.PARAMS	.EQ $0390				Main, 18 bytes min for GetFileInfo (ATLK needs MORE!!!...32 max for now)
K.MLI.PATH		.EQ $03B0				64+1 -> $03D0
*--------------------------------------
*** $3F0-$3FF IRQ Handler.... ***
*--------------------------------------
* Main/Aux $400	-> $7FF : Console Screen
* Main/Aux $800	-> $BFF : System Screen
*--------------------------------------
PS.Table.PID	.EQ $0C00				K.PS.MAX
PS.Table.hMem	.EQ $0C00+K.PS.MAX
K.Buf256		.EQ $0E00				Main
*--------------------------------------
K.STACKTOP		.EQ $0F20				down to $0f00
*--------------------------------------
*** Z80 Reserved $0F00-10FF***
*--------------------------------------
Z80STACK		.EQ $0FFF				(0FFFFh) Down to $0F20
Z80JMP			.EQ $1000				(00000h) Up To $10FF
*--------------------------------------
FltMgr.Table	.EQ $1100				K.FLT.MAX*S.FLT.SIZE=8*32=128b
*--------------------------------------
EvtMgr.Table	.EQ	$1180				K.EVT.MAX*S.EVT.SIZE=16*8=128b
*--------------------------------------
DevMgr.Table	.EQ	$1200				K.DEV.MAX*S.DEV.SIZE=32*16=512b
*--------------------------------------
* MemMgr : $1800->$1FFF	MAIN/AUX		(2 kBytes)
*--------------------------------------
MemMgr.Table	.EQ $1800				Slot 0 is Reserved
MemMgr.LoMem	.EQ $1800
MemMgr.Free		.EQ $1802
MemMgr.HiMem	.EQ $1804
MemMgr.LastSlot	.EQ $1806
*--------------------------------------
MemMgr.MLoMem	.EQ $2000
MemMgr.MHiMem	.EQ $BD00
MemMgr.XLoMem	.EQ $2000
MemMgr.XHiMem	.EQ $C000
*--------------------------------------
DevMgr.HiMem	.EQ $FFFA				Protect IRQ vectors in Aux LC
*--------------------------------------
MAN
SAVE /A2OSX.BUILD/INC/KERNEL.I
LOAD /A2OSX.SRC/SYS/KERNEL.S
ASM