254 lines
14 KiB
Plaintext
254 lines
14 KiB
Plaintext
A51 MACRO ASSEMBLER STARTUP 05/23/2018 00:05:56 PAGE 1
|
||
|
||
|
||
MACRO ASSEMBLER A51 V8.2.7.0
|
||
OBJECT MODULE PLACED IN .\Objects\STARTUP.obj
|
||
ASSEMBLER INVOKED BY: C:\Keil_v5\C51\BIN\A51.EXE STARTUP.A51 SET(SMALL) DEBUG PRINT(.\Listings\STARTUP.lst) OBJECT(.\Obj
|
||
ects\STARTUP.obj) EP
|
||
|
||
LOC OBJ LINE SOURCE
|
||
|
||
1 $nomod51
|
||
2 ;------------------------------------------------------------------------------
|
||
3 ; This file is part of the C51 Compiler package
|
||
4 ; Copyright (c) 1988-2005 Keil Elektronik GmbH and Keil Software, Inc.
|
||
5 ; Version 8.01
|
||
6 ;
|
||
7 ; *** <<< Use Configuration Wizard in Context Menu >>> ***
|
||
8 ;------------------------------------------------------------------------------
|
||
9 ; STARTUP.A51: This code is executed after processor reset.
|
||
10 ;
|
||
11 ; To translate this file use A51 with the following invocation:
|
||
12 ;
|
||
13 ; A51 STARTUP.A51
|
||
14 ;
|
||
15 ; To link the modified STARTUP.OBJ file to your application use the following
|
||
16 ; Lx51 invocation:
|
||
17 ;
|
||
18 ; Lx51 your object file list, STARTUP.OBJ controls
|
||
19 ;
|
||
20 ;------------------------------------------------------------------------------
|
||
21 ;
|
||
22 ; User-defined <h> Power-On Initialization of Memory
|
||
23 ;
|
||
24 ; With the following EQU statements the initialization of memory
|
||
25 ; at processor reset can be defined:
|
||
26 ;
|
||
27 ; <o> IDATALEN: IDATA memory size <0x0-0x100>
|
||
28 ; <i> Note: The absolute start-address of IDATA memory is always 0
|
||
29 ; <i> The IDATA space overlaps physically the DATA and BIT areas.
|
||
0080 30 IDATALEN EQU 80H
|
||
31 ;
|
||
32 ; <o> XDATASTART: XDATA memory start address <0x0-0xFFFF>
|
||
33 ; <i> The absolute start address of XDATA memory
|
||
0000 34 XDATASTART EQU 0
|
||
35 ;
|
||
36 ; <o> XDATALEN: XDATA memory size <0x0-0xFFFF>
|
||
37 ; <i> The length of XDATA memory in bytes.
|
||
0000 38 XDATALEN EQU 0
|
||
39 ;
|
||
40 ; <o> PDATASTART: PDATA memory start address <0x0-0xFFFF>
|
||
41 ; <i> The absolute start address of PDATA memory
|
||
0000 42 PDATASTART EQU 0H
|
||
43 ;
|
||
44 ; <o> PDATALEN: PDATA memory size <0x0-0xFF>
|
||
45 ; <i> The length of PDATA memory in bytes.
|
||
0000 46 PDATALEN EQU 0H
|
||
47 ;
|
||
48 ;</h>
|
||
49 ;------------------------------------------------------------------------------
|
||
50 ;
|
||
51 ;<h> Reentrant Stack Initialization
|
||
52 ;
|
||
53 ; The following EQU statements define the stack pointer for reentrant
|
||
54 ; functions and initialized it:
|
||
55 ;
|
||
56 ; <h> Stack Space for reentrant functions in the SMALL model.
|
||
57 ; <q> IBPSTACK: Enable SMALL model reentrant stack
|
||
A51 MACRO ASSEMBLER STARTUP 05/23/2018 00:05:56 PAGE 2
|
||
|
||
58 ; <i> Stack space for reentrant functions in the SMALL model.
|
||
0000 59 IBPSTACK EQU 0 ; set to 1 if small reentrant is used.
|
||
60 ; <o> IBPSTACKTOP: End address of SMALL model stack <0x0-0xFF>
|
||
61 ; <i> Set the top of the stack to the highest location.
|
||
0100 62 IBPSTACKTOP EQU 0xFF +1 ; default 0FFH+1
|
||
63 ; </h>
|
||
64 ;
|
||
65 ; <h> Stack Space for reentrant functions in the LARGE model.
|
||
66 ; <q> XBPSTACK: Enable LARGE model reentrant stack
|
||
67 ; <i> Stack space for reentrant functions in the LARGE model.
|
||
0000 68 XBPSTACK EQU 0 ; set to 1 if large reentrant is used.
|
||
69 ; <o> XBPSTACKTOP: End address of LARGE model stack <0x0-0xFFFF>
|
||
70 ; <i> Set the top of the stack to the highest location.
|
||
0000 71 XBPSTACKTOP EQU 0xFFFF +1 ; default 0FFFFH+1
|
||
72 ; </h>
|
||
73 ;
|
||
74 ; <h> Stack Space for reentrant functions in the COMPACT model.
|
||
75 ; <q> PBPSTACK: Enable COMPACT model reentrant stack
|
||
76 ; <i> Stack space for reentrant functions in the COMPACT model.
|
||
0000 77 PBPSTACK EQU 0 ; set to 1 if compact reentrant is used.
|
||
78 ;
|
||
79 ; <o> PBPSTACKTOP: End address of COMPACT model stack <0x0-0xFFFF>
|
||
80 ; <i> Set the top of the stack to the highest location.
|
||
0100 81 PBPSTACKTOP EQU 0xFF +1 ; default 0FFH+1
|
||
82 ; </h>
|
||
83 ;</h>
|
||
84 ;------------------------------------------------------------------------------
|
||
85 ;
|
||
86 ; Memory Page for Using the Compact Model with 64 KByte xdata RAM
|
||
87 ; <e>Compact Model Page Definition
|
||
88 ;
|
||
89 ; <i>Define the XDATA page used for PDATA variables.
|
||
90 ; <i>PPAGE must conform with the PPAGE set in the linker invocation.
|
||
91 ;
|
||
92 ; Enable pdata memory page initalization
|
||
0000 93 PPAGEENABLE EQU 0 ; set to 1 if pdata object are used.
|
||
94 ;
|
||
95 ; <o> PPAGE number <0x0-0xFF>
|
||
96 ; <i> uppermost 256-byte address of the page used for PDATA variables.
|
||
0000 97 PPAGE EQU 0
|
||
98 ;
|
||
99 ; <o> SFR address which supplies uppermost address byte <0x0-0xFF>
|
||
100 ; <i> most 8051 variants use P2 as uppermost address byte
|
||
00A0 101 PPAGE_SFR DATA 0A0H
|
||
102 ;
|
||
103 ; </e>
|
||
104 ;------------------------------------------------------------------------------
|
||
105
|
||
106 ; Standard SFR Symbols
|
||
00E0 107 ACC DATA 0E0H
|
||
00F0 108 B DATA 0F0H
|
||
0081 109 SP DATA 81H
|
||
0082 110 DPL DATA 82H
|
||
0083 111 DPH DATA 83H
|
||
112
|
||
113 NAME ?C_STARTUP
|
||
114
|
||
115
|
||
116 ?C_C51STARTUP SEGMENT CODE
|
||
117 ?STACK SEGMENT IDATA
|
||
118
|
||
---- 119 RSEG ?STACK
|
||
0000 120 DS 1
|
||
121
|
||
122 EXTRN CODE (?C_START)
|
||
123 PUBLIC ?C_STARTUP
|
||
A51 MACRO ASSEMBLER STARTUP 05/23/2018 00:05:56 PAGE 3
|
||
|
||
124
|
||
---- 125 CSEG AT 0
|
||
0000 020000 F 126 ?C_STARTUP: LJMP STARTUP1
|
||
127
|
||
---- 128 RSEG ?C_C51STARTUP
|
||
129
|
||
0000 130 STARTUP1:
|
||
131
|
||
132 IF IDATALEN <> 0
|
||
0000 787F 133 MOV R0,#IDATALEN - 1
|
||
0002 E4 134 CLR A
|
||
0003 F6 135 IDATALOOP: MOV @R0,A
|
||
0004 D8FD 136 DJNZ R0,IDATALOOP
|
||
137 ENDIF
|
||
138
|
||
139 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
|
||
153
|
||
154 IF PPAGEENABLE <> 0
|
||
MOV PPAGE_SFR,#PPAGE
|
||
ENDIF
|
||
157
|
||
158 IF PDATALEN <> 0
|
||
MOV R0,#LOW (PDATASTART)
|
||
MOV R7,#LOW (PDATALEN)
|
||
CLR A
|
||
PDATALOOP: MOVX @R0,A
|
||
INC R0
|
||
DJNZ R7,PDATALOOP
|
||
ENDIF
|
||
166
|
||
167 IF IBPSTACK <> 0
|
||
EXTRN DATA (?C_IBP)
|
||
|
||
MOV ?C_IBP,#LOW IBPSTACKTOP
|
||
ENDIF
|
||
172
|
||
173 IF XBPSTACK <> 0
|
||
EXTRN DATA (?C_XBP)
|
||
|
||
MOV ?C_XBP,#HIGH XBPSTACKTOP
|
||
MOV ?C_XBP+1,#LOW XBPSTACKTOP
|
||
ENDIF
|
||
179
|
||
180 IF PBPSTACK <> 0
|
||
EXTRN DATA (?C_PBP)
|
||
MOV ?C_PBP,#LOW PBPSTACKTOP
|
||
ENDIF
|
||
184
|
||
0006 758100 F 185 MOV SP,#?STACK-1
|
||
186
|
||
187 ; This code is required if you use L51_BANK.A51 with Banking Mode 4
|
||
188 ;<h> Code Banking
|
||
189 ; <q> Select Bank 0 for L51_BANK.A51 Mode 4
|
||
A51 MACRO ASSEMBLER STARTUP 05/23/2018 00:05:56 PAGE 4
|
||
|
||
190
|
||
|
||
|
||
|
||
|
||
195 ;</h>
|
||
0009 020000 F 196 LJMP ?C_START
|
||
197
|
||
198 END
|
||
A51 MACRO ASSEMBLER STARTUP 05/23/2018 00:05:56 PAGE 5
|
||
|
||
SYMBOL TABLE LISTING
|
||
------ ----- -------
|
||
|
||
|
||
N A M E T Y P E V A L U E ATTRIBUTES
|
||
|
||
?C_C51STARTUP. . . C SEG 000CH REL=UNIT
|
||
?C_START . . . . . C ADDR ----- EXT
|
||
?C_STARTUP . . . . C ADDR 0000H A
|
||
?STACK . . . . . . I SEG 0001H REL=UNIT
|
||
ACC. . . . . . . . D ADDR 00E0H A
|
||
B. . . . . . . . . D ADDR 00F0H A
|
||
DPH. . . . . . . . D ADDR 0083H A
|
||
DPL. . . . . . . . D ADDR 0082H A
|
||
IBPSTACK . . . . . N NUMB 0000H A
|
||
IBPSTACKTOP. . . . N NUMB 0100H A
|
||
IDATALEN . . . . . N NUMB 0080H A
|
||
IDATALOOP. . . . . C ADDR 0003H R SEG=?C_C51STARTUP
|
||
PBPSTACK . . . . . N NUMB 0000H A
|
||
PBPSTACKTOP. . . . N NUMB 0100H A
|
||
PDATALEN . . . . . N NUMB 0000H A
|
||
PDATASTART . . . . N NUMB 0000H A
|
||
PPAGE. . . . . . . N NUMB 0000H A
|
||
PPAGEENABLE. . . . N NUMB 0000H A
|
||
PPAGE_SFR. . . . . D ADDR 00A0H A
|
||
SP . . . . . . . . D ADDR 0081H A
|
||
STARTUP1 . . . . . C ADDR 0000H R SEG=?C_C51STARTUP
|
||
XBPSTACK . . . . . N NUMB 0000H A
|
||
XBPSTACKTOP. . . . N NUMB 0000H A
|
||
XDATALEN . . . . . N NUMB 0000H A
|
||
XDATASTART . . . . N NUMB 0000H A
|
||
|
||
|
||
REGISTER BANK(S) USED: 0
|
||
|
||
|
||
ASSEMBLY COMPLETE. 0 WARNING(S), 0 ERROR(S)
|