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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [i960/] [rxgen960/] [startup/] [rxgen_romld.S] - Blame information for rev 173

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/*
 *  $Id: rxgen_romld.S,v 1.2 2001-09-27 11:59:59 chris Exp $
 */
 
#include "asm.h"
 
        BEGIN_CODE
 
        .globl _romStart
        .globl _start
        .globl _romFaultStart
        .globl _led_array
        .text
SYM(romStart ):
SYM(_romStart ):
          # This line is to make compiler happy.
        mov     0, g14
        ldconst 0x120f,r10   # BIST register
/*
         Setup code for in memory loaded image
*/
/*
          # Interrupt stack is used by default.
          # Copy all code (except Fault Table and Fault Handler)
          # from EPROM into DRAM.
*/
        ldconst 0x120f,r10   //# BIST register
        ldconst 0x2,r3
        stob    r3,0(r10)       //# 2->LED
/*
          # Zero all uninitialized data
*/
        callx   _zeroBss
        ldconst 0x120f,r10   //# BIST register
        ldconst 0x3,r3
        stob    r3,0(r10)       //# 3->LED
/*
          # And reinitialize processor.
          # _start is a few lines below.
          # _prcb is RAM-based struct PRCB.
*/
        ldconst 0x300, r4
        ldconst _pmc_start, r5
        ldconst _ram_prcb, r6
        sysctl  r4, r5, r6
/*
          # This point will never be reached.
*/
 
SYM(_pmc_start) :
SYM(pmc_start) :
        ldconst 0x120f,r10   # BIST register
        ldconst 0x4,r3
        stob    r3,0(r10)       //# 4->LED
        mov     0, g14
/*
          # To get ready to invoke procedures.
          # I'll use supervisor stack.
*/
 
        ldconst _svrStackPtr, fp
        lda     16*4(fp), sp
        ldconst 0x5,r3
        stob    r3,0(r10)       //# 5->LED
 
        ldconst 0x1F0000, r4
        ldconst 0x1F2000, r3
        ldconst 0, r5
        modpc   r4, r3, r5
 
        ldconst 7,r3
        stob    r3,0(r10)       //# 7->LED
 
        callx   _rx_boot_card
/*        # if _romMain ever returns ...        */
        b       _romExit
 
SYM(romFaultStart) :
SYM(_romFaultStart) :
 
        mov     0, g14
 
        /* ldconst      0, sf0 XXX JRS */
/*
          # To get ready to invoke procedures.
          # I'll use supervisor stack.
          # _svrStackPtr is defined directly in rom.ld.
*/
        ldconst _svrStackPtr, fp
        lda     16*4(fp), sp
/*
          # Set processor priority to zero.
*/
        ldconst 0x1F0000, r4
        ldconst 0, r5
        modpc   r4, r4, r5
//        # Now to real code
// Fix this up  callx   _romFaultMain
        callx   _rx_boot_card
//        # if _romMain ever returns ...
        b       _romExit
 
_romExit :
//        # if _romMain ever returns ...
//      fmark
        b       _romExit
 
 
 
SYM(led_array):
        .byte 99
        .byte 1
        .byte 2
        .byte 3
        .byte 4
        .byte 5
        .byte 6
        .byte 7
        .byte 8
        .byte 9
        .byte 0xa
        .byte 0xb
        .byte 0xc

Line No.	Rev	Author	Line
1	30	unneback	`/*`
2			`* $Id: rxgen_romld.S,v 1.2 2001-09-27 11:59:59 chris Exp $`
3			`*/`
4
5			`#include "asm.h"`
6
7			`BEGIN_CODE`
8
9			`.globl _romStart`
10			`.globl _start`
11			`.globl _romFaultStart`
12			`.globl _led_array`
13			`.text`
14			`SYM(romStart ):`
15			`SYM(_romStart ):`
16			`# This line is to make compiler happy.`
17			`mov 0, g14`
18			`ldconst 0x120f,r10 # BIST register`
19			`/*`
20			`Setup code for in memory loaded image`
21			`*/`
22			`/*`
23			`# Interrupt stack is used by default.`
24			`# Copy all code (except Fault Table and Fault Handler)`
25			`# from EPROM into DRAM.`
26			`*/`
27			`ldconst 0x120f,r10 //# BIST register`
28			`ldconst 0x2,r3`
29			`stob r3,0(r10) //# 2->LED`
30			`/*`
31			`# Zero all uninitialized data`
32			`*/`
33			`callx _zeroBss`
34			`ldconst 0x120f,r10 //# BIST register`
35			`ldconst 0x3,r3`
36			`stob r3,0(r10) //# 3->LED`
37			`/*`
38			`# And reinitialize processor.`
39			`# _start is a few lines below.`
40			`# _prcb is RAM-based struct PRCB.`
41			`*/`
42			`ldconst 0x300, r4`
43			`ldconst _pmc_start, r5`
44			`ldconst _ram_prcb, r6`
45			`sysctl r4, r5, r6`
46			`/*`
47			`# This point will never be reached.`
48			`*/`
49
50			`SYM(_pmc_start) :`
51			`SYM(pmc_start) :`
52			`ldconst 0x120f,r10 # BIST register`
53			`ldconst 0x4,r3`
54			`stob r3,0(r10) //# 4->LED`
55			`mov 0, g14`
56			`/*`
57			`# To get ready to invoke procedures.`
58			`# I'll use supervisor stack.`
59			`*/`
60
61			`ldconst _svrStackPtr, fp`
62			`lda 16*4(fp), sp`
63			`ldconst 0x5,r3`
64			`stob r3,0(r10) //# 5->LED`
65
66			`ldconst 0x1F0000, r4`
67			`ldconst 0x1F2000, r3`
68			`ldconst 0, r5`
69			`modpc r4, r3, r5`
70
71			`ldconst 7,r3`
72			`stob r3,0(r10) //# 7->LED`
73
74			`callx _rx_boot_card`
75			`/* # if _romMain ever returns ... */`
76			`b _romExit`
77
78			`SYM(romFaultStart) :`
79			`SYM(_romFaultStart) :`
80
81			`mov 0, g14`
82
83			`/* ldconst 0, sf0 XXX JRS */`
84			`/*`
85			`# To get ready to invoke procedures.`
86			`# I'll use supervisor stack.`
87			`# _svrStackPtr is defined directly in rom.ld.`
88			`*/`
89			`ldconst _svrStackPtr, fp`
90			`lda 16*4(fp), sp`
91			`/*`
92			`# Set processor priority to zero.`
93			`*/`
94			`ldconst 0x1F0000, r4`
95			`ldconst 0, r5`
96			`modpc r4, r4, r5`
97			`// # Now to real code`
98			`// Fix this up callx _romFaultMain`
99			`callx _rx_boot_card`
100			`// # if _romMain ever returns ...`
101			`b _romExit`
102
103			`_romExit :`
104			`// # if _romMain ever returns ...`
105			`// fmark`
106			`b _romExit`
107
108
109
110			`SYM(led_array):`
111			`.byte 99`
112			`.byte 1`
113			`.byte 2`
114			`.byte 3`
115			`.byte 4`
116			`.byte 5`
117			`.byte 6`
118			`.byte 7`
119			`.byte 8`
120			`.byte 9`
121			`.byte 0xa`
122			`.byte 0xb`
123			`.byte 0xc`

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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [i960/] [rxgen960/] [startup/] [rxgen_romld.S] - Blame information for rev 173