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[/] [or1k/] [trunk/] [uclinux/] [uClinux-2.0.x/] [arch/] [m68knommu/] [platform/] [68EZ328/] [PalmV/] [crt0_ram.S] - Blame information for rev 1781

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        .global __text_start
        .global __main
        .global __bss_start
        .global __bss_end
        .global __ram_start
        .global __ram_end
        .global __rom_start
        .global __rom_end
        .global __data_start
        .global __data_end
 
        .global splash_bits
        .global _start
        .global _stext
 
#define DEBUG
#define ROM_OFFSET 0x10C00000
#define STACK_GAURD 0x10
 
        .data
splash_bits:
#include "bootlogo.rh"
 
        .text
 
_start:
_stext:
        /* At this point, %a0 contains a pointer to the
           list of pages, which are in order but not
           necessarily contiguous.  We have to move
           things around, set up the stack and get into
           the kernel.  PalmOS has done much of the hard
           work for us setting up the hardware */
 
        movew   #0x2700, %sr            /* Exceptions off! */
        movew   #0x2400, 0xfffff200     /* PLLCR */
        movew   #0x0123, 0xfffff202     /* PLLFSR */
        moveb   #0x1f,   0xfffff207     /* Full power */
 
        /* Init chip registers.  PalmV specific */
        /* PalmOS has setup the device.  We just get on with it */
 
        movel   #splash_bits, 0xfffffA00 /* LSSA */
 
        moveb   #0x20,   0xfffff419     /* ForceON RS232 driver */
        moveb   #0x08,   0xfffff906     /* Ignore CTS */
        movew   #0x00c0, 0xfffff908     /* No, not Fscking IrDA */
        movew   #0x010b, 0xfffff902     /* BAUD to 9600 */
        movew   #0xe100, 0xfffff900     /* enable */
 
        movew   #16384, %d0  /* PLL settle wait loop */
L0:
        subw    #1, %d0
        bne     L0
 
        /* My parts are scattered, %a0 has a list.  Make me whole */
        moveal  #0x1400, %a2            /* FIXME: Hard coded load address */
        moveal  %a0@+, %a1              /* Move to page 1 (this is page 0) */
mvlp0:
#ifdef DEBUG
        moveq   #70, %d7                /* 'F' */
        moveb   %d7,0xfffff907          /* No absolute addresses */
pclp1:
        movew   0xfffff906, %d7
        andw    #0x2000, %d7
        beq     pclp1
#endif /* DEBUG */
        movew   #1024, %d6
        moveal  %a0@+, %a1
        movel   %a1, %d0
        beq     mvdone
mvlp1:
        movel   %a1@+, %d0
        movel   %d0, %a2@+
        subw    #1, %d6
#if 1
        bne     mvlp1
        bra     mvlp0
#endif
mvdone:
 
#ifdef DEBUG
        moveq   #82, %d7                /* 'R' */
        moveb   %d7,0xfffff907          /* No absolute addresses */
pclp3:
        movew   0xfffff906, %d7
        andw    #0x2000, %d7
        beq     pclp3
#endif /* DEBUG */
        moveal  #0x001ffff0, %ssp
        moveal  #__bss_start, %a0
        moveal  #__bss_end, %a1
 
        /* Copy 0 to %a0 until %a0 >= %a1 */
L1:
        movel   #0, %a0@+
        cmpal   %a0, %a1
        bhi     L1
 
#ifdef DEBUG
        moveq   #67, %d7                /* 'C' */
        jsr     putc
#endif /* DEBUG */
 
        pea     0
        pea     env
        pea     %sp@(4)
        pea     0
 
#ifdef DEBUG
        moveq   #70, %d7                /* 'F' */
        jsr     putc
#endif /* DEBUG */
 
lp:
        jsr     start_kernel
        jmp lp
_exit:
 
        jmp     _exit
 
__main:
        /* nothing */
        rts
 
#ifdef DEBUG
putc:
        moveb   %d7,0xfffff907
pclp:
        movew   0xfffff906, %d7
        andw    #0x2000, %d7
        beq     pclp
        rts
#endif /* DEBUG */
 
        .data
env:
        .long   0

Line No.	Rev	Author	Line
1	199	simons	`.global __text_start`
2			`.global __main`
3			`.global __bss_start`
4			`.global __bss_end`
5			`.global __ram_start`
6			`.global __ram_end`
7			`.global __rom_start`
8			`.global __rom_end`
9			`.global __data_start`
10			`.global __data_end`
11
12			`.global splash_bits`
13			`.global _start`
14			`.global _stext`
15
16			`#define DEBUG`
17			`#define ROM_OFFSET 0x10C00000`
18			`#define STACK_GAURD 0x10`
19
20			`.data`
21			`splash_bits:`
22			`#include "bootlogo.rh"`
23
24			`.text`
25
26			`_start:`
27			`_stext:`
28			`/* At this point, %a0 contains a pointer to the`
29			`list of pages, which are in order but not`
30			`necessarily contiguous. We have to move`
31			`things around, set up the stack and get into`
32			`the kernel. PalmOS has done much of the hard`
33			`work for us setting up the hardware */`
34
35			`movew #0x2700, %sr /* Exceptions off! */`
36			`movew #0x2400, 0xfffff200 /* PLLCR */`
37			`movew #0x0123, 0xfffff202 /* PLLFSR */`
38			`moveb #0x1f, 0xfffff207 /* Full power */`
39
40			`/* Init chip registers. PalmV specific */`
41			`/* PalmOS has setup the device. We just get on with it */`
42
43			`movel #splash_bits, 0xfffffA00 /* LSSA */`
44
45			`moveb #0x20, 0xfffff419 /* ForceON RS232 driver */`
46			`moveb #0x08, 0xfffff906 /* Ignore CTS */`
47			`movew #0x00c0, 0xfffff908 /* No, not Fscking IrDA */`
48			`movew #0x010b, 0xfffff902 /* BAUD to 9600 */`
49			`movew #0xe100, 0xfffff900 /* enable */`
50
51			`movew #16384, %d0 /* PLL settle wait loop */`
52			`L0:`
53			`subw #1, %d0`
54			`bne L0`
55
56			`/* My parts are scattered, %a0 has a list. Make me whole */`
57			`moveal #0x1400, %a2 /* FIXME: Hard coded load address */`
58			`moveal %a0@+, %a1 /* Move to page 1 (this is page 0) */`
59			`mvlp0:`
60			`#ifdef DEBUG`
61			`moveq #70, %d7 /* 'F' */`
62			`moveb %d7,0xfffff907 /* No absolute addresses */`
63			`pclp1:`
64			`movew 0xfffff906, %d7`
65			`andw #0x2000, %d7`
66			`beq pclp1`
67			`#endif /* DEBUG */`
68			`movew #1024, %d6`
69			`moveal %a0@+, %a1`
70			`movel %a1, %d0`
71			`beq mvdone`
72			`mvlp1:`
73			`movel %a1@+, %d0`
74			`movel %d0, %a2@+`
75			`subw #1, %d6`
76			`#if 1`
77			`bne mvlp1`
78			`bra mvlp0`
79			`#endif`
80			`mvdone:`
81
82			`#ifdef DEBUG`
83			`moveq #82, %d7 /* 'R' */`
84			`moveb %d7,0xfffff907 /* No absolute addresses */`
85			`pclp3:`
86			`movew 0xfffff906, %d7`
87			`andw #0x2000, %d7`
88			`beq pclp3`
89			`#endif /* DEBUG */`
90			`moveal #0x001ffff0, %ssp`
91			`moveal #__bss_start, %a0`
92			`moveal #__bss_end, %a1`
93
94			`/* Copy 0 to %a0 until %a0 >= %a1 */`
95			`L1:`
96			`movel #0, %a0@+`
97			`cmpal %a0, %a1`
98			`bhi L1`
99
100			`#ifdef DEBUG`
101			`moveq #67, %d7 /* 'C' */`
102			`jsr putc`
103			`#endif /* DEBUG */`
104
105			`pea 0`
106			`pea env`
107			`pea %sp@(4)`
108			`pea 0`
109
110			`#ifdef DEBUG`
111			`moveq #70, %d7 /* 'F' */`
112			`jsr putc`
113			`#endif /* DEBUG */`
114
115			`lp:`
116			`jsr start_kernel`
117			`jmp lp`
118			`_exit:`
119
120			`jmp _exit`
121
122			`__main:`
123			`/* nothing */`
124			`rts`
125
126			`#ifdef DEBUG`
127			`putc:`
128			`moveb %d7,0xfffff907`
129			`pclp:`
130			`movew 0xfffff906, %d7`
131			`andw #0x2000, %d7`
132			`beq pclp`
133			`rts`
134			`#endif /* DEBUG */`
135
136			`.data`
137			`env:`
138			`.long 0`

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[/] [or1k/] [trunk/] [uclinux/] [uClinux-2.0.x/] [arch/] [m68knommu/] [platform/] [68EZ328/] [PalmV/] [crt0_ram.S] - Blame information for rev 1781