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

by charlie yang :: Rate this Message:

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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
>
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