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$NOMOD51
;------------------------------------------------------------------------------
;  This file is part of the C51 Compiler package
;  Copyright (c) 1988-2005 Keil Elektronik GmbH and Keil Software, Inc.
;  Version 8.01
;
;  *** <<< Use Configuration Wizard in Context Menu >>> ***
;------------------------------------------------------------------------------
;  STARTUP.A51:  This code is executed after processor reset.
;
;  To translate this file use A51 with the following invocation:
;
;     A51 STARTUP.A51
;
;  To link the modified STARTUP.OBJ file to your application use the following
;  Lx51 invocation:
;
;     Lx51 your object file list, STARTUP.OBJ  controls
;
;------------------------------------------------------------------------------
;
;  User-defined <h> Power-On Initialization of Memory
;
;  With the following EQU statements the initialization of memory
;  at processor reset can be defined:
;
; <o> IDATALEN: IDATA memory size <0x0-0x100>
;     <i> Note: The absolute start-address of IDATA memory is always 0
;     <i>       The IDATA space overlaps physically the DATA and BIT areas.
IDATALEN        EQU     80H
;
; <o> XDATASTART: XDATA memory start address <0x0-0xFFFF> 
;     <i> The absolute start address of XDATA memory
XDATASTART      EQU     0     
;
; <o> XDATALEN: XDATA memory size <0x0-0xFFFF> 
;     <i> The length of XDATA memory in bytes.
XDATALEN        EQU     0      
;
; <o> PDATASTART: PDATA memory start address <0x0-0xFFFF> 
;     <i> The absolute start address of PDATA memory
PDATASTART      EQU     0H
;
; <o> PDATALEN: PDATA memory size <0x0-0xFF> 
;     <i> The length of PDATA memory in bytes.
PDATALEN        EQU     0H
;
;</h>
;------------------------------------------------------------------------------
;
;<h> Reentrant Stack Initialization
;
;  The following EQU statements define the stack pointer for reentrant
;  functions and initialized it:
;
; <h> Stack Space for reentrant functions in the SMALL model.
;  <q> IBPSTACK: Enable SMALL model reentrant stack
;     <i> Stack space for reentrant functions in the SMALL model.
IBPSTACK        EQU     0       ; set to 1 if small reentrant is used.
;  <o> IBPSTACKTOP: End address of SMALL model stack <0x0-0xFF>
;     <i> Set the top of the stack to the highest location.
IBPSTACKTOP     EQU     0xFF +1     ; default 0FFH+1  
; </h>
;
; <h> Stack Space for reentrant functions in the LARGE model.      
;  <q> XBPSTACK: Enable LARGE model reentrant stack
;     <i> Stack space for reentrant functions in the LARGE model.
XBPSTACK        EQU     0       ; set to 1 if large reentrant is used.
;  <o> XBPSTACKTOP: End address of LARGE model stack <0x0-0xFFFF>
;     <i> Set the top of the stack to the highest location.
XBPSTACKTOP     EQU     0xFFFF +1   ; default 0FFFFH+1 
; </h>
;
; <h> Stack Space for reentrant functions in the COMPACT model.    
;  <q> PBPSTACK: Enable COMPACT model reentrant stack
;     <i> Stack space for reentrant functions in the COMPACT model.
PBPSTACK        EQU     0       ; set to 1 if compact reentrant is used.
;
;   <o> PBPSTACKTOP: End address of COMPACT model stack <0x0-0xFFFF>
;     <i> Set the top of the stack to the highest location.
PBPSTACKTOP     EQU     0xFF +1     ; default 0FFH+1  
; </h>
;</h>
;------------------------------------------------------------------------------
;
;  Memory Page for Using the Compact Model with 64 KByte xdata RAM
;  <e>Compact Model Page Definition
;
;  <i>Define the XDATA page used for PDATA variables. 
;  <i>PPAGE must conform with the PPAGE set in the linker invocation.
;
; Enable pdata memory page initalization
PPAGEENABLE     EQU     0       ; set to 1 if pdata object are used.
;
; <o> PPAGE number <0x0-0xFF> 
; <i> uppermost 256-byte address of the page used for PDATA variables.
PPAGE           EQU     0
;
; <o> SFR address which supplies uppermost address byte <0x0-0xFF> 
; <i> most 8051 variants use P2 as uppermost address byte
PPAGE_SFR       DATA    0A0H
;
; </e>
;------------------------------------------------------------------------------

; Standard SFR Symbols 
ACC     DATA    0E0H
B       DATA    0F0H
SP      DATA    81H
DPL     DATA    82H
DPH     DATA    83H

                NAME    ?C_STARTUP


?C_C51STARTUP   SEGMENT   CODE
?STACK          SEGMENT   IDATA

                RSEG    ?STACK
                DS      1

                EXTRN CODE (?C_START)
                PUBLIC  ?C_STARTUP

                CSEG    AT      0
?C_STARTUP:     LJMP    STARTUP1

                RSEG    ?C_C51STARTUP
STARTUP1:

IF IDATALEN <> 0
                MOV     R0,#IDATALEN - 1
                CLR     A
IDATALOOP:      MOV     @R0,A
                DJNZ    R0,IDATALOOP
ENDIF

IF XDATALEN <> 0
                MOV     DPTR,#XDATASTART
                MOV     R7,#LOW (XDATALEN)
  IF (LOW (XDATALEN)) <> 0
                MOV     R6,#(HIGH (XDATALEN)) +1
  ELSE
                MOV     R6,#HIGH (XDATALEN)
  ENDIF
                CLR     A
XDATALOOP:      MOVX    @DPTR,A
                INC     DPTR
                DJNZ    R7,XDATALOOP
                DJNZ    R6,XDATALOOP
ENDIF

IF PPAGEENABLE <> 0
                MOV     PPAGE_SFR,#PPAGE
ENDIF

IF PDATALEN <> 0
                MOV     R0,#LOW (PDATASTART)
                MOV     R7,#LOW (PDATALEN)
                CLR     A
PDATALOOP:      MOVX    @R0,A
                INC     R0
                DJNZ    R7,PDATALOOP
ENDIF

IF IBPSTACK <> 0
EXTRN DATA (?C_IBP)

                MOV     ?C_IBP,#LOW IBPSTACKTOP
ENDIF

IF XBPSTACK <> 0
EXTRN DATA (?C_XBP)

                MOV     ?C_XBP,#HIGH XBPSTACKTOP
                MOV     ?C_XBP+1,#LOW XBPSTACKTOP
ENDIF

IF PBPSTACK <> 0
EXTRN DATA (?C_PBP)
                MOV     ?C_PBP,#LOW PBPSTACKTOP
ENDIF

                MOV     SP,#?STACK-1

; This code is required if you use L51_BANK.A51 with Banking Mode 4
;<h> Code Banking
; <q> Select Bank 0 for L51_BANK.A51 Mode 4
#if 0   
;     <i> Initialize bank mechanism to code bank 0 when using L51_BANK.A51 with Banking Mode 4.
EXTRN CODE (?B_SWITCH0)
                CALL    ?B_SWITCH0      ; init bank mechanism to code bank 0
#endif
;</h>
                LJMP    ?C_START

                END

	$NOMOD51
	;------------------------------------------------------------------------------
	; This file is part of the C51 Compiler package
	; Copyright (c) 1988-2005 Keil Elektronik GmbH and Keil Software, Inc.
	; Version 8.01
	;
	; * <<< Use Configuration Wizard in Context Menu >>> *
	;------------------------------------------------------------------------------
	; STARTUP.A51: This code is executed after processor reset.
	;
	; To translate this file use A51 with the following invocation:
	;
	; A51 STARTUP.A51
	;
	; To link the modified STARTUP.OBJ file to your application use the following
	; Lx51 invocation:
	;
	; Lx51 your object file list, STARTUP.OBJ controls
	;
	;------------------------------------------------------------------------------
	;
	; User-defined <h> Power-On Initialization of Memory
	;
	; With the following EQU statements the initialization of memory
	; at processor reset can be defined:
	;
	; <o> IDATALEN: IDATA memory size <0x0-0x100>
	; <i> Note: The absolute start-address of IDATA memory is always 0
	; <i> The IDATA space overlaps physically the DATA and BIT areas.
	IDATALEN EQU 80H
	;
	; <o> XDATASTART: XDATA memory start address <0x0-0xFFFF>
	; <i> The absolute start address of XDATA memory
	XDATASTART EQU 0
	;
	; <o> XDATALEN: XDATA memory size <0x0-0xFFFF>
	; <i> The length of XDATA memory in bytes.
	XDATALEN EQU 0
	;
	; <o> PDATASTART: PDATA memory start address <0x0-0xFFFF>
	; <i> The absolute start address of PDATA memory
	PDATASTART EQU 0H
	;
	; <o> PDATALEN: PDATA memory size <0x0-0xFF>
	; <i> The length of PDATA memory in bytes.
	PDATALEN EQU 0H
	;
	;</h>
	;------------------------------------------------------------------------------
	;
	;<h> Reentrant Stack Initialization
	;
	; The following EQU statements define the stack pointer for reentrant
	; functions and initialized it:
	;
	; <h> Stack Space for reentrant functions in the SMALL model.
	; <q> IBPSTACK: Enable SMALL model reentrant stack
	; <i> Stack space for reentrant functions in the SMALL model.
	IBPSTACK EQU 0 ; set to 1 if small reentrant is used.
	; <o> IBPSTACKTOP: End address of SMALL model stack <0x0-0xFF>
	; <i> Set the top of the stack to the highest location.
	IBPSTACKTOP EQU 0xFF +1 ; default 0FFH+1
	; </h>
	;
	; <h> Stack Space for reentrant functions in the LARGE model.
	; <q> XBPSTACK: Enable LARGE model reentrant stack
	; <i> Stack space for reentrant functions in the LARGE model.
	XBPSTACK EQU 0 ; set to 1 if large reentrant is used.
	; <o> XBPSTACKTOP: End address of LARGE model stack <0x0-0xFFFF>
	; <i> Set the top of the stack to the highest location.
	XBPSTACKTOP EQU 0xFFFF +1 ; default 0FFFFH+1
	; </h>
	;
	; <h> Stack Space for reentrant functions in the COMPACT model.
	; <q> PBPSTACK: Enable COMPACT model reentrant stack
	; <i> Stack space for reentrant functions in the COMPACT model.
	PBPSTACK EQU 0 ; set to 1 if compact reentrant is used.
	;
	; <o> PBPSTACKTOP: End address of COMPACT model stack <0x0-0xFFFF>
	; <i> Set the top of the stack to the highest location.
	PBPSTACKTOP EQU 0xFF +1 ; default 0FFH+1
	; </h>
	;</h>
	;------------------------------------------------------------------------------
	;
	; Memory Page for Using the Compact Model with 64 KByte xdata RAM
	; <e>Compact Model Page Definition
	;
	; <i>Define the XDATA page used for PDATA variables.
	; <i>PPAGE must conform with the PPAGE set in the linker invocation.
	;
	; Enable pdata memory page initalization
	PPAGEENABLE EQU 0 ; set to 1 if pdata object are used.
	;
	; <o> PPAGE number <0x0-0xFF>
	; <i> uppermost 256-byte address of the page used for PDATA variables.
	PPAGE EQU 0
	;
	; <o> SFR address which supplies uppermost address byte <0x0-0xFF>
	; <i> most 8051 variants use P2 as uppermost address byte
	PPAGE_SFR DATA 0A0H
	;
	; </e>
	;------------------------------------------------------------------------------

	; Standard SFR Symbols
	ACC DATA 0E0H
	B DATA 0F0H
	SP DATA 81H
	DPL DATA 82H
	DPH DATA 83H

	NAME ?C_STARTUP


	?C_C51STARTUP SEGMENT CODE
	?STACK SEGMENT IDATA

	RSEG ?STACK
	DS 1

	EXTRN CODE (?C_START)
	PUBLIC ?C_STARTUP

	CSEG AT 0
	?C_STARTUP: LJMP STARTUP1

	RSEG ?C_C51STARTUP

	STARTUP1:

	IF IDATALEN <> 0
	MOV R0,#IDATALEN - 1
	CLR A
	IDATALOOP: MOV @R0,A
	DJNZ R0,IDATALOOP
	ENDIF

	IF XDATALEN <> 0
	MOV DPTR,#XDATASTART
	MOV R7,#LOW (XDATALEN)
	IF (LOW (XDATALEN)) <> 0
	MOV R6,#(HIGH (XDATALEN)) +1
	ELSE
	MOV R6,#HIGH (XDATALEN)
	ENDIF
	CLR A
	XDATALOOP: MOVX @DPTR,A
	INC DPTR
	DJNZ R7,XDATALOOP
	DJNZ R6,XDATALOOP
	ENDIF

	IF PPAGEENABLE <> 0
	MOV PPAGE_SFR,#PPAGE
	ENDIF

	IF PDATALEN <> 0
	MOV R0,#LOW (PDATASTART)
	MOV R7,#LOW (PDATALEN)
	CLR A
	PDATALOOP: MOVX @R0,A
	INC R0
	DJNZ R7,PDATALOOP
	ENDIF

	IF IBPSTACK <> 0
	EXTRN DATA (?C_IBP)

	MOV ?C_IBP,#LOW IBPSTACKTOP
	ENDIF

	IF XBPSTACK <> 0
	EXTRN DATA (?C_XBP)

	MOV ?C_XBP,#HIGH XBPSTACKTOP
	MOV ?C_XBP+1,#LOW XBPSTACKTOP
	ENDIF

	IF PBPSTACK <> 0
	EXTRN DATA (?C_PBP)
	MOV ?C_PBP,#LOW PBPSTACKTOP
	ENDIF

	MOV SP,#?STACK-1

	; This code is required if you use L51_BANK.A51 with Banking Mode 4
	;<h> Code Banking
	; <q> Select Bank 0 for L51_BANK.A51 Mode 4
	#if 0
	; <i> Initialize bank mechanism to code bank 0 when using L51_BANK.A51 with Banking Mode 4.
	EXTRN CODE (?B_SWITCH0)
	CALL ?B_SWITCH0 ; init bank mechanism to code bank 0
	#endif
	;</h>
	LJMP ?C_START

	END