RE: how to run hello world in on-chip ram?

> -----Original Message-----
> From: openrisc-bounces@...
> [mailto:openrisc-bounces@...]On Behalf Of charlie yang
> Sent: 23 November 2007 01:58
> To: openrisc@...
> Subject: Re: [openrisc] how to run hello world in on-chip ram?
>
>
> Thanks Robert.
> I find where is the problem ,but dont' know why.
> When I use or32-uclinux-objcopy command to get the ram.hex,
> the "_start" physical address in RAM is 0x100, and CPU cannot jump
> there.
> But if i use orp_soc/sw/utils/bin2hex to convert the hello.bin to
> hello.hex
> (it's not the intel hex format),then copy the content of hello.hex to
> altera ram.hex, my hello-uart runs ok. But in this condition the physical
> address of "_start" is 0x40 (right shift 2 bit than 0x100). These two
> kinds of hex files come from the same hello.bin or hello.or32, why make
> out the different start address?
>
>
> The following is the file using "or32-uclinux-dump -d hello.or32":
>
>
> hello.or32:     file format elf32-or32
>
> Disassembly of section .vectors:
>
> 00000000 <_start-0x100>:
> ...
>
> 00000100 <_start>:
>  100: 18 20 00 00 l.movhi r1,0x0
>  104: a8 21 0d 52 l.ori r1,r1,0xd52
>  108: 9c 40 ff fd l.addi r2,r0,0xfffffffd
>  10c: e0 21 10 03 l.and r1,r1,r2
>  110: 18 40 00 00 l.movhi r2,0x0
>  114: a8 42 06 50 l.ori r2,r2,0x650
>  118: 44 00 10 00 l.jr r2
>  11c: 9c 40 00 00 l.addi r2,r0,0x0
>
> 00000120 <___main>:
>  120: 44 00 48 00 l.jr r9
>  124: 15 00 00 00 l.nop 0x0
> Disassembly of section .text:
>
> 00000200 <_uart_init>:
>  200: 9c 21 ff 44 l.addi r1,r1,0xffffff44
>  204: d4 01 10 00 l.sw 0x0(r1),r2
>  208: 9c 41 00 bc l.addi r2,r1,0xbc
>  20c: 18 60 90 00 l.movhi r3,0x9000
>  210: d7 e2 1f f4 l.sw 0xfffffff4(r2),r3
>  214: 84 82 ff f4 l.lwz r4,0xfffffff4(r2)
>  218: a8 84 00 02 l.ori r4,r4,0x2
>  21c: d7 e2 27 f8 l.sw 0xfffffff8(r2),r4
>  220: 9c 60 ff c7 l.addi r3,r0,0xffffffc7
>  224: d7 e2 1f f0 l.sw 0xfffffff0(r2),r3
>  228: 84 82 ff f0 l.lwz r4,0xfffffff0(r2)
>  22c: db e2 27 ef l.sb 0xffffffef(r2),r4
>  230: 8c 82 ff ef l.lbz r4,0xffffffef(r2)
>  234: 84 62 ff f8 l.lwz r3,0xfffffff8(r2)
>  238: d8 03 20 00 l.sb 0x0(r3),r4
>  23c: 18 60 90 00 l.movhi r3,0x9000
>  240: d7 e2 1f e4 l.sw 0xffffffe4(r2),r3
>  244: 84 82 ff e4 l.lwz r4,0xffffffe4(r2)
>  248: a8 84 00 01 l.ori r4,r4,0x1
>  24c: d7 e2 27 e8 l.sw 0xffffffe8(r2),r4
>  250: 9c 60 00 00 l.addi r3,r0,0x0
>  254: d7 e2 1f e0 l.sw 0xffffffe0(r2),r3
>  258: 84 82 ff e0 l.lwz r4,0xffffffe0(r2)
>  25c: db e2 27 df l.sb 0xffffffdf(r2),r4
>  260: 8c 82 ff df l.lbz r4,0xffffffdf(r2)
>  264: 84 62 ff e8 l.lwz r3,0xffffffe8(r2)
>  268: d8 03 20 00 l.sb 0x0(r3),r4
>  26c: 18 60 90 00 l.movhi r3,0x9000
>  270: d7 e2 1f d4 l.sw 0xffffffd4(r2),r3
>  274: 84 82 ff d4 l.lwz r4,0xffffffd4(r2)
>  278: a8 84 00 03 l.ori r4,r4,0x3
>  27c: d7 e2 27 d8 l.sw 0xffffffd8(r2),r4
>  280: 9c 60 00 03 l.addi r3,r0,0x3
>  284: d7 e2 1f d0 l.sw 0xffffffd0(r2),r3
>  288: 84 82 ff d0 l.lwz r4,0xffffffd0(r2)
>  28c: db e2 27 cf l.sb 0xffffffcf(r2),r4
>  290: 8c 82 ff cf l.lbz r4,0xffffffcf(r2)
>  294: 84 62 ff d8 l.lwz r3,0xffffffd8(r2)
>  298: d8 03 20 00 l.sb 0x0(r3),r4
>  29c: 9c 60 00 41 l.addi r3,r0,0x41
>  2a0: d7 e2 1f c8 l.sw 0xffffffc8(r2),r3
>  2a4: 84 82 ff c8 l.lwz r4,0xffffffc8(r2)
>  2a8: d7 e2 27 fc l.sw 0xfffffffc(r2),r4
>  2ac: 18 60 90 00 l.movhi r3,0x9000
>  2b0: d7 e2 1f c0 l.sw 0xffffffc0(r2),r3
>  2b4: 84 82 ff c0 l.lwz r4,0xffffffc0(r2)
>  2b8: a8 84 00 03 l.ori r4,r4,0x3
>  2bc: d7 e2 27 c4 l.sw 0xffffffc4(r2),r4
>  2c0: 18 60 90 00 l.movhi r3,0x9000
>  2c4: d7 e2 1f b8 l.sw 0xffffffb8(r2),r3
>  2c8: 84 82 ff b8 l.lwz r4,0xffffffb8(r2)
>  2cc: a8 84 00 03 l.ori r4,r4,0x3
>  2d0: d7 e2 27 bc l.sw 0xffffffbc(r2),r4
>  2d4: 84 62 ff bc l.lwz r3,0xffffffbc(r2)
>  2d8: 8c 63 00 00 l.lbz r3,0x0(r3)
>  2dc: db e2 1f b7 l.sb 0xffffffb7(r2),r3
>  2e0: 9c 60 ff 80 l.addi r3,r0,0xffffff80
>  2e4: 8c 82 ff b7 l.lbz r4,0xffffffb7(r2)
>  2e8: e0 64 18 04 l.or r3,r4,r3
>  2ec: d7 e2 1f b0 l.sw 0xffffffb0(r2),r3
>  2f0: 84 82 ff b0 l.lwz r4,0xffffffb0(r2)
>  2f4: db e2 27 af l.sb 0xffffffaf(r2),r4
>  2f8: 8c 82 ff af l.lbz r4,0xffffffaf(r2)
>  2fc: 84 62 ff c4 l.lwz r3,0xffffffc4(r2)
>  300: d8 03 20 00 l.sb 0x0(r3),r4
>  304: 18 60 90 00 l.movhi r3,0x9000
>  308: d7 e2 1f a8 l.sw 0xffffffa8(r2),r3
>  30c: 84 82 ff fc l.lwz r4,0xfffffffc(r2)
>  310: d7 e2 27 a4 l.sw 0xffffffa4(r2),r4
>  314: 9c 60 ff ff l.addi r3,r0,0xffffffff
>  318: d7 e2 1f 9c l.sw 0xffffff9c(r2),r3
>  31c: 84 82 ff 9c l.lwz r4,0xffffff9c(r2)
>  320: db e2 27 a3 l.sb 0xffffffa3(r2),r4
>  324: 84 62 ff a4 l.lwz r3,0xffffffa4(r2)
>  328: db e2 1f 9b l.sb 0xffffff9b(r2),r3
>  32c: 8c 82 ff 9b l.lbz r4,0xffffff9b(r2)
>  330: 8c 62 ff a3 l.lbz r3,0xffffffa3(r2)
>  334: e0 84 18 03 l.and r4,r4,r3
>  338: d7 e2 27 94 l.sw 0xffffff94(r2),r4
>  33c: 84 82 ff 94 l.lwz r4,0xffffff94(r2)
>  340: db e2 27 93 l.sb 0xffffff93(r2),r4
>  344: 8c 82 ff 93 l.lbz r4,0xffffff93(r2)
>  348: 84 62 ff a8 l.lwz r3,0xffffffa8(r2)
>  34c: d8 03 20 00 l.sb 0x0(r3),r4
>  350: 18 60 90 00 l.movhi r3,0x9000
>  354: d7 e2 1f 88 l.sw 0xffffff88(r2),r3
>  358: 84 82 ff 88 l.lwz r4,0xffffff88(r2)
>  35c: a8 84 00 01 l.ori r4,r4,0x1
>  360: d7 e2 27 8c l.sw 0xffffff8c(r2),r4
>  364: 84 62 ff fc l.lwz r3,0xfffffffc(r2)
>  368: d7 e2 1f 80 l.sw 0xffffff80(r2),r3
>  36c: 84 82 ff 80 l.lwz r4,0xffffff80(r2)
>  370: b8 84 00 88 l.srai r4,r4,0x8
>  374: d7 e2 27 84 l.sw 0xffffff84(r2),r4
>  378: 9c 60 ff ff l.addi r3,r0,0xffffffff
>  37c: d7 e2 1f 78 l.sw 0xffffff78(r2),r3
>  380: 84 82 ff 78 l.lwz r4,0xffffff78(r2)
>  384: db e2 27 7f l.sb 0xffffff7f(r2),r4
>  388: 84 62 ff 84 l.lwz r3,0xffffff84(r2)
>  38c: db e2 1f 77 l.sb 0xffffff77(r2),r3
>  390: 8c 82 ff 77 l.lbz r4,0xffffff77(r2)
>  394: 8c 62 ff 7f l.lbz r3,0xffffff7f(r2)
>  398: e0 84 18 03 l.and r4,r4,r3
>  39c: d7 e2 27 70 l.sw 0xffffff70(r2),r4
>  3a0: 84 82 ff 70 l.lwz r4,0xffffff70(r2)
>  3a4: db e2 27 6f l.sb 0xffffff6f(r2),r4
>  3a8: 8c 82 ff 6f l.lbz r4,0xffffff6f(r2)
>  3ac: 84 62 ff 8c l.lwz r3,0xffffff8c(r2)
>  3b0: d8 03 20 00 l.sb 0x0(r3),r4
>  3b4: 18 60 90 00 l.movhi r3,0x9000
>  3b8: d7 e2 1f 64 l.sw 0xffffff64(r2),r3
>  3bc: 84 82 ff 64 l.lwz r4,0xffffff64(r2)
>  3c0: a8 84 00 03 l.ori r4,r4,0x3
>  3c4: d7 e2 27 68 l.sw 0xffffff68(r2),r4
>  3c8: 18 60 90 00 l.movhi r3,0x9000
>  3cc: d7 e2 1f 5c l.sw 0xffffff5c(r2),r3
>  3d0: 84 82 ff 5c l.lwz r4,0xffffff5c(r2)
>  3d4: a8 84 00 03 l.ori r4,r4,0x3
>  3d8: d7 e2 27 60 l.sw 0xffffff60(r2),r4
>  3dc: 9c 60 00 7f l.addi r3,r0,0x7f
>  3e0: d7 e2 1f 54 l.sw 0xffffff54(r2),r3
>  3e4: 84 82 ff 54 l.lwz r4,0xffffff54(r2)
>  3e8: db e2 27 5b l.sb 0xffffff5b(r2),r4
>  3ec: 84 62 ff 60 l.lwz r3,0xffffff60(r2)
>  3f0: 8c 63 00 00 l.lbz r3,0x0(r3)
>  3f4: db e2 1f 53 l.sb 0xffffff53(r2),r3
>  3f8: 8c 82 ff 53 l.lbz r4,0xffffff53(r2)
>  3fc: 8c 62 ff 5b l.lbz r3,0xffffff5b(r2)
>  400: e0 84 18 03 l.and r4,r4,r3
>  404: d7 e2 27 4c l.sw 0xffffff4c(r2),r4
>  408: 84 82 ff 4c l.lwz r4,0xffffff4c(r2)
>  40c: db e2 27 4b l.sb 0xffffff4b(r2),r4
>  410: 8c 82 ff 4b l.lbz r4,0xffffff4b(r2)
>  414: 84 62 ff 68 l.lwz r3,0xffffff68(r2)
>  418: d8 03 20 00 l.sb 0x0(r3),r4
>  41c: 84 41 00 00 l.lwz r2,0x0(r1)
>  420: 44 00 48 00 l.jr r9
>  424: 9c 21 00 bc l.addi r1,r1,0xbc
>
> 00000428 <_uart_putc>:
>  428: 9c 21 ff 9c l.addi r1,r1,0xffffff9c
>  42c: d4 01 10 00 l.sw 0x0(r1),r2
>  430: 9c 41 00 64 l.addi r2,r1,0x64
>  434: d7 e2 1f f8 l.sw 0xfffffff8(r2),r3
>  438: 84 62 ff f8 l.lwz r3,0xfffffff8(r2)
>  43c: db e2 1f f7 l.sb 0xfffffff7(r2),r3
>  440: 8c 82 ff f7 l.lbz r4,0xfffffff7(r2)
>  444: db e2 27 ff l.sb 0xffffffff(r2),r4
>  448: 18 60 90 00 l.movhi r3,0x9000
>  44c: d7 e2 1f ec l.sw 0xffffffec(r2),r3
>  450: 84 82 ff ec l.lwz r4,0xffffffec(r2)
>  454: a8 84 00 05 l.ori r4,r4,0x5
>  458: d7 e2 27 f0 l.sw 0xfffffff0(r2),r4
>  45c: 84 62 ff f0 l.lwz r3,0xfffffff0(r2)
>  460: 8c 63 00 00 l.lbz r3,0x0(r3)
>  464: db e2 1f eb l.sb 0xffffffeb(r2),r3
>  468: 8c 82 ff eb l.lbz r4,0xffffffeb(r2)
>  46c: db e2 27 fe l.sb 0xfffffffe(r2),r4
>  470: 8c 62 ff fe l.lbz r3,0xfffffffe(r2)
>  474: d7 e2 1f e4 l.sw 0xffffffe4(r2),r3
>  478: 84 82 ff e4 l.lwz r4,0xffffffe4(r2)
>  47c: a4 84 00 20 l.andi r4,r4,0x20
>  480: d7 e2 27 e0 l.sw 0xffffffe0(r2),r4
>  484: 84 62 ff e0 l.lwz r3,0xffffffe0(r2)
>  488: bc 23 00 00 l.sfnei r3,0x0
>  48c: 10 00 00 04 l.bf 49c <_uart_putc+0x74>
>  490: 15 00 00 00 l.nop 0x0
>  494: 03 ff ff ed l.j 448 <_uart_putc+0x20>
>  498: 15 00 00 00 l.nop 0x0
>  49c: 18 80 90 00 l.movhi r4,0x9000
>  4a0: d7 e2 27 dc l.sw 0xffffffdc(r2),r4
>  4a4: 8c 62 ff ff l.lbz r3,0xffffffff(r2)
>  4a8: db e2 1f db l.sb 0xffffffdb(r2),r3
>  4ac: 8c 62 ff db l.lbz r3,0xffffffdb(r2)
>  4b0: 84 82 ff dc l.lwz r4,0xffffffdc(r2)
>  4b4: d8 04 18 00 l.sb 0x0(r4),r3
>  4b8: 90 82 ff ff l.lbs r4,0xffffffff(r2)
>  4bc: d7 e2 27 d4 l.sw 0xffffffd4(r2),r4
>  4c0: 84 62 ff d4 l.lwz r3,0xffffffd4(r2)
>  4c4: bc 23 00 0a l.sfnei r3,0xa
>  4c8: 10 00 00 20 l.bf 548 <_uart_putc+0x120>
>  4cc: 15 00 00 00 l.nop 0x0
>  4d0: 18 80 90 00 l.movhi r4,0x9000
>  4d4: d7 e2 27 cc l.sw 0xffffffcc(r2),r4
>  4d8: 84 62 ff cc l.lwz r3,0xffffffcc(r2)
>  4dc: a8 63 00 05 l.ori r3,r3,0x5
>  4e0: d7 e2 1f d0 l.sw 0xffffffd0(r2),r3
>  4e4: 84 82 ff d0 l.lwz r4,0xffffffd0(r2)
>  4e8: 8c 84 00 00 l.lbz r4,0x0(r4)
>  4ec: db e2 27 cb l.sb 0xffffffcb(r2),r4
>  4f0: 8c 62 ff cb l.lbz r3,0xffffffcb(r2)
>  4f4: db e2 1f fe l.sb 0xfffffffe(r2),r3
>  4f8: 8c 82 ff fe l.lbz r4,0xfffffffe(r2)
>  4fc: d7 e2 27 c4 l.sw 0xffffffc4(r2),r4
>  500: 84 62 ff c4 l.lwz r3,0xffffffc4(r2)
>  504: a4 63 00 20 l.andi r3,r3,0x20
>  508: d7 e2 1f c0 l.sw 0xffffffc0(r2),r3
>  50c: 84 82 ff c0 l.lwz r4,0xffffffc0(r2)
>  510: bc 24 00 00 l.sfnei r4,0x0
>  514: 10 00 00 04 l.bf 524 <_uart_putc+0xfc>
>  518: 15 00 00 00 l.nop 0x0
>  51c: 03 ff ff ed l.j 4d0 <_uart_putc+0xa8>
>  520: 15 00 00 00 l.nop 0x0
>  524: 18 60 90 00 l.movhi r3,0x9000
>  528: d7 e2 1f bc l.sw 0xffffffbc(r2),r3
>  52c: 9c 80 00 0d l.addi r4,r0,0xd
>  530: d7 e2 27 b8 l.sw 0xffffffb8(r2),r4
>  534: 84 62 ff b8 l.lwz r3,0xffffffb8(r2)
>  538: db e2 1f b7 l.sb 0xffffffb7(r2),r3
>  53c: 8c 62 ff b7 l.lbz r3,0xffffffb7(r2)
>  540: 84 82 ff bc l.lwz r4,0xffffffbc(r2)
>  544: d8 04 18 00 l.sb 0x0(r4),r3
>  548: 18 80 90 00 l.movhi r4,0x9000
>  54c: d7 e2 27 ac l.sw 0xffffffac(r2),r4
>  550: 84 62 ff ac l.lwz r3,0xffffffac(r2)
>  554: a8 63 00 05 l.ori r3,r3,0x5
>  558: d7 e2 1f b0 l.sw 0xffffffb0(r2),r3
>  55c: 84 82 ff b0 l.lwz r4,0xffffffb0(r2)
>  560: 8c 84 00 00 l.lbz r4,0x0(r4)
>  564: db e2 27 ab l.sb 0xffffffab(r2),r4
>  568: 8c 62 ff ab l.lbz r3,0xffffffab(r2)
>  56c: db e2 1f fe l.sb 0xfffffffe(r2),r3
>  570: 8c 82 ff fe l.lbz r4,0xfffffffe(r2)
>  574: d7 e2 27 a4 l.sw 0xffffffa4(r2),r4
>  578: 84 62 ff a4 l.lwz r3,0xffffffa4(r2)
>  57c: a4 63 00 60 l.andi r3,r3,0x60
>  580: d7 e2 1f a0 l.sw 0xffffffa0(r2),r3
>  584: 84 82 ff a0 l.lwz r4,0xffffffa0(r2)
>  588: bc 04 00 60 l.sfeqi r4,0x60
>  58c: 10 00 00 04 l.bf 59c <_uart_putc+0x174>
>  590: 15 00 00 00 l.nop 0x0
>  594: 03 ff ff ed l.j 548 <_uart_putc+0x120>
>  598: 15 00 00 00 l.nop 0x0
>  59c: 84 41 00 00 l.lwz r2,0x0(r1)
>  5a0: 44 00 48 00 l.jr r9
>  5a4: 9c 21 00 64 l.addi r1,r1,0x64
>
> 000005a8 <_uart_getc>:
>  5a8: 9c 21 ff d0 l.addi r1,r1,0xffffffd0
>  5ac: d4 01 10 00 l.sw 0x0(r1),r2
>  5b0: 9c 41 00 30 l.addi r2,r1,0x30
>  5b4: 18 60 90 00 l.movhi r3,0x9000
>  5b8: d7 e2 1f f0 l.sw 0xfffffff0(r2),r3
>  5bc: 84 62 ff f0 l.lwz r3,0xfffffff0(r2)
>  5c0: a8 63 00 05 l.ori r3,r3,0x5
>  5c4: d7 e2 1f f4 l.sw 0xfffffff4(r2),r3
>  5c8: 84 62 ff f4 l.lwz r3,0xfffffff4(r2)
>  5cc: 8c 63 00 00 l.lbz r3,0x0(r3)
>  5d0: db e2 1f ef l.sb 0xffffffef(r2),r3
>  5d4: 8c 62 ff ef l.lbz r3,0xffffffef(r2)
>  5d8: db e2 1f ff l.sb 0xffffffff(r2),r3
>  5dc: 8c 62 ff ff l.lbz r3,0xffffffff(r2)
>  5e0: d7 e2 1f e8 l.sw 0xffffffe8(r2),r3
>  5e4: 84 62 ff e8 l.lwz r3,0xffffffe8(r2)
>  5e8: ac 63 00 01 l.xori r3,r3,0x1
>  5ec: d7 e2 1f e4 l.sw 0xffffffe4(r2),r3
>  5f0: 84 62 ff e4 l.lwz r3,0xffffffe4(r2)
>  5f4: a4 63 00 01 l.andi r3,r3,0x1
>  5f8: d7 e2 1f e0 l.sw 0xffffffe0(r2),r3
>  5fc: 84 62 ff e0 l.lwz r3,0xffffffe0(r2)
>  600: bc 03 00 00 l.sfeqi r3,0x0
>  604: 10 00 00 04 l.bf 614 <_uart_getc+0x6c>
>  608: 15 00 00 00 l.nop 0x0
>  60c: 03 ff ff ea l.j 5b4 <_uart_getc+0xc>
>  610: 15 00 00 00 l.nop 0x0
>  614: 18 60 90 00 l.movhi r3,0x9000
>  618: d7 e2 1f dc l.sw 0xffffffdc(r2),r3
>  61c: 84 62 ff dc l.lwz r3,0xffffffdc(r2)
>  620: 8c 63 00 00 l.lbz r3,0x0(r3)
>  624: db e2 1f db l.sb 0xffffffdb(r2),r3
>  628: 8c 62 ff db l.lbz r3,0xffffffdb(r2)
>  62c: db e2 1f fe l.sb 0xfffffffe(r2),r3
>  630: 90 62 ff fe l.lbs r3,0xfffffffe(r2)
>  634: d7 e2 1f d4 l.sw 0xffffffd4(r2),r3
>  638: 84 62 ff d4 l.lwz r3,0xffffffd4(r2)
>  63c: d7 e2 1f f8 l.sw 0xfffffff8(r2),r3
>  640: 85 62 ff f8 l.lwz r11,0xfffffff8(r2)
>  644: 84 41 00 00 l.lwz r2,0x0(r1)
>  648: 44 00 48 00 l.jr r9
>  64c: 9c 21 00 30 l.addi r1,r1,0x30
>
> 00000650 <_main>:
>  650: 9c 21 ff c4 l.addi r1,r1,0xffffffc4
>  654: d4 01 10 04 l.sw 0x4(r1),r2
>  658: 9c 41 00 3c l.addi r2,r1,0x3c
>  65c: d4 01 48 00 l.sw 0x0(r1),r9
>  660: 07 ff fe e8 l.jal 200 <_uart_init>
>  664: 15 00 00 00 l.nop 0x0
>  668: 18 60 00 00 l.movhi r3,0x0
>  66c: a8 63 07 44 l.ori r3,r3,0x744
>  670: d7 e2 1f f8 l.sw 0xfffffff8(r2),r3
>  674: 84 62 ff f8 l.lwz r3,0xfffffff8(r2)
>  678: 84 63 00 00 l.lwz r3,0x0(r3)
>  67c: d7 e2 1f f4 l.sw 0xfffffff4(r2),r3
>  680: 84 62 ff f4 l.lwz r3,0xfffffff4(r2)
>  684: d7 e2 1f fc l.sw 0xfffffffc(r2),r3
>  688: 84 62 ff fc l.lwz r3,0xfffffffc(r2)
>  68c: d7 e2 1f f0 l.sw 0xfffffff0(r2),r3
>  690: 84 62 ff f0 l.lwz r3,0xfffffff0(r2)
>  694: 90 63 00 00 l.lbs r3,0x0(r3)
>  698: d7 e2 1f ec l.sw 0xffffffec(r2),r3
>  69c: 84 62 ff ec l.lwz r3,0xffffffec(r2)
>  6a0: bc 03 00 00 l.sfeqi r3,0x0
>  6a4: 10 00 00 13 l.bf 6f0 <_main+0xa0>
>  6a8: 15 00 00 00 l.nop 0x0
>  6ac: 84 62 ff fc l.lwz r3,0xfffffffc(r2)
>  6b0: d7 e2 1f e8 l.sw 0xffffffe8(r2),r3
>  6b4: 84 62 ff e8 l.lwz r3,0xffffffe8(r2)
>  6b8: 90 63 00 00 l.lbs r3,0x0(r3)
>  6bc: d7 e2 1f e4 l.sw 0xffffffe4(r2),r3
>  6c0: 84 62 ff e4 l.lwz r3,0xffffffe4(r2)
>  6c4: 07 ff ff 59 l.jal 428 <_uart_putc>
>  6c8: 15 00 00 00 l.nop 0x0
>  6cc: 84 62 ff fc l.lwz r3,0xfffffffc(r2)
>  6d0: d7 e2 1f e0 l.sw 0xffffffe0(r2),r3
>  6d4: 84 62 ff e0 l.lwz r3,0xffffffe0(r2)
>  6d8: 9c 63 00 01 l.addi r3,r3,0x1
>  6dc: d7 e2 1f dc l.sw 0xffffffdc(r2),r3
>  6e0: 84 62 ff dc l.lwz r3,0xffffffdc(r2)
>  6e4: d7 e2 1f fc l.sw 0xfffffffc(r2),r3
>  6e8: 03 ff ff e8 l.j 688 <_main+0x38>
>  6ec: 15 00 00 00 l.nop 0x0
>  6f0: 07 ff ff ae l.jal 5a8 <_uart_getc>
>  6f4: 15 00 00 00 l.nop 0x0
>  6f8: d7 e2 5f d8 l.sw 0xffffffd8(r2),r11
>  6fc: 84 62 ff d8 l.lwz r3,0xffffffd8(r2)
>  700: 9c 63 00 01 l.addi r3,r3,0x1
>  704: d7 e2 1f d4 l.sw 0xffffffd4(r2),r3
>  708: 84 62 ff d4 l.lwz r3,0xffffffd4(r2)
>  70c: b8 63 00 18 l.slli r3,r3,0x18
>  710: d7 e2 1f cc l.sw 0xffffffcc(r2),r3
>  714: 84 62 ff cc l.lwz r3,0xffffffcc(r2)
>  718: b8 63 00 98 l.srai r3,r3,0x18
>  71c: d7 e2 1f d0 l.sw 0xffffffd0(r2),r3
>  720: 84 62 ff d0 l.lwz r3,0xffffffd0(r2)
>  724: 07 ff ff 41 l.jal 428 <_uart_putc>
>  728: 15 00 00 00 l.nop 0x0
>  72c: 03 ff ff f1 l.j 6f0 <_main+0xa0>
>  730: 15 00 00 00 l.nop 0x0
>  734: 85 21 00 00 l.lwz r9,0x0(r1)
>  738: 84 41 00 04 l.lwz r2,0x4(r1)
>  73c: 44 00 48 00 l.jr r9
>  740: 9c 21 00 3c l.addi r1,r1,0x3c
>
>
>
> ----- Original Message -----
> From: Robert Cragie<rcc@j...>
> To:
> Date: Thu Nov 22 11:30:49 CET 2007
> Subject: [openrisc] how to run hello world in on-chip ram?
>
> > Can you post the disassembly of your hello.or32 file?:
> >
> > or32-uclinux-objdump -d hello.or32
> >
> > That will give a clearer picture of where everything is.
> >
> > Robert
> >
> > Robert Cragie, Design Engineer
> >
> _____________________________________________________________
> __
> > Jennic Ltd, Furnival Street, Sheffield, S1 4QT, UK
> > http://www.jennic.com Tel: +44 (0) 114 281 2655
> >
> _______________________________________________
> http://www.opencores.org/mailman/listinfo/openrisc