;
; sysmem.inc
;

; constants

MAXTIMERS_USER		equ 20

; table lengths (number of entries, not size in bytes)

JUMPTABLESIZE		equ 30
COMMANDTABLESIZE	equ 256
IPCTABLESIZE		equ 32
TIMERTABLESIZE		equ 32
MESSAGEBUFFERSIZE	equ 64
HOOKTABLESIZE		equ 6	
RESOURCETABLESIZE	equ 256


; jump table is always at the top of RAM

JUMPTABLE_START		equ RAMBASE


; system tables start at the top of RAM if running from eeprom,
; or from the end of the code if running as a module.

	ifconst __module
SYSMEM_START		equ EndOfCode
	else
SYSMEM_START		equ RAMBASE
	endif


; system tables

SYSTABLES_START		equ SYSMEM_START
coke_jumptable		equ SYSTABLES_START
coke_commandtable	equ coke_jumptable+(JUMPTABLESIZE*3)
coke_ipctable		equ coke_commandtable+(COMMANDTABLESIZE*2)
coke_timertable		equ coke_ipctable+(IPCTABLESIZE*2)
coke_messagebuffer	equ coke_timertable+(TIMERTABLESIZE*8)
coke_messagebufferend	equ coke_messagebuffer+(MESSAGEBUFFERSIZE)
coke_hooktable		equ coke_messagebufferend
resource_resourcetable	equ coke_hooktable+(HOOKTABLESIZE*2)
SYSTABLES_END		equ resource_resourcetable+(RESOURCETABLESIZE*3)


; system variables

SYSVARS_START		equ SYSTABLES_END
coke_externalramcheck	equ SYSVARS_START
SYSVARS_END		equ coke_externalramcheck+1


; free memory for resources

FREEMEM_START		equ SYSVARS_END


; direct page system variables

coke_numtimers16	equ sysdirpage
coke_numtimers		equ sysdirpage+1
coke_getcharptr		equ sysdirpage+2
coke_messagegetptr	equ sysdirpage+4
coke_messageputptr	equ sysdirpage+6
coke_messagelength	equ sysdirpage+8
coke_scratch		equ sysdirpage+9
resource_scratch	equ sysdirpage+15
resource_checksum	equ sysdirpage+15
resource_checksumhi	equ sysdirpage+15
resource_checksumlo	equ sysdirpage+16
resource_freepointer	equ sysdirpage+19
resource_numresources	equ sysdirpage+21
coke_chipramcheck	equ sysdirpage+23