Renesas Emulator System M3T-MR100 - Manual (Page 235)

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7.3.1 C Language Startup Program (crt0mr.a30)
Figure 7.11 shows the C language startup program(crt0mr.a30).
1 ; ****************************************************************
2
;
3 ; MR100 start up program for C language
4
;
COPYRIGHT(C) 2003,2006,2007 RENESAS TECHNOLOGY CORPORATION
5 ; AND RENESAS SOLUTIONS CORPORATION ALL RIGHTS RESERVED
6 ; MR100
7
;
8 ; ****************************************************************
9
;
"$Id: crt0mr.a30 512 2007-07-09 10:11:36Z inui $"
10 ;*A1* 2005-02-28 for ES
11
;*G0* 2006-06-15 for MR100/4
12 ;
13 .LIST OFF
14
.INCLUDE
c_sec.inc
15 .INCLUDE mr100.inc
16
.INCLUDE
sys_rom.inc
17 .INCLUDE sys_ram.inc
18
.LIST
ON
19
20 .GLB __SYS_INITIAL
21
.GLB __END_INIT
22 .GLB __init_sys,__init_tsk
23
24 regoffset .EQU 0
25
26 ;-----------------------------------------------------------------
27
; SBDATA area definition
28
;-----------------------------------------------------------------
29 .GLB __SB__
30
.SB __SB__
31
32
;=================================================================
33 ; Initialize Macro declaration
34
;-----------------------------------------------------------------
35
BZERO .macro
TOP_,SECT_
36 XOR.B R0L,R0L
37
mov.l
#TOP_,A1
38 mov.l #sizeof SECT_,R7R5
39
sstr.b
40 .endm
41
BCOPY .macro
FROM_,TO_,SECT_
42
mov.l
#FROM_,A0
43 mov.l #TO_,A1
44
mov.l
#sizeof SECT_,R7R5
45 smovf.b
46
.endm
47 ;=================================================================
48
; Interrupt section start
49
;-----------------------------------------------------------------
50 .SECTION MR_KERNEL,CODE,ALIGN
51
52 ;-----------------------------------------------------------------
53
; after reset,this program will start
54 ;-----------------------------------------------------------------
55
__SYS_INITIAL:
56 LDC #__Sys_Sp,ISP ; set initial ISP
57
58
; MOV.B #2,0AH
59 ; MOV.B #00,PMOD ; Set Processor Mode Register
60
;
MOV.B #0,0AH ;
61 LDC #00000010H,FLG
62
LDC #__SB__,SB
63 LDC #00000000H,FLG
64 LDC #__Sys_Sp,FB
65
LDC #__SB__,SB
66
67
;=================================================================
68 ; MR_RAM zero clear
69
;--------------------------------------------------------
70 BZERO MR_RAM_top,MR_RAM
71
72
;=================================================================
73 ; NEAR area initialize.
74
; FAR area initialize.