FreeCalypso > hg > freecalypso-sw
annotate nuc-fw/sysglue/sysinit.S @ 84:ccc5161848c7
loadtools: support building for GTA0x AP
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Tue, 20 Aug 2013 04:51:15 +0000 |
parents | 39b1c369b67f |
children | 321f6a9ae989 |
rev | line source |
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1 /* |
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2 * This assembly module, which puts bits of code into several different |
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3 * sections, contains those essential entry point etc bits which are common |
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4 * to both the regular flashable build and the fc-xram development build. |
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5 */ |
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6 |
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7 .section iram.vectors |
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8 .code 32 |
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9 /* no useful handlers for the 5 error exceptions yet */ |
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10 b . |
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11 b . |
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12 b . |
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13 b . |
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14 b . |
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15 /* IRQ */ |
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16 b _INT_IRQ |
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17 /* no useful FIQ handler yet */ |
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18 b . |
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19 |
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20 .section xip.text |
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21 .code 32 |
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22 .globl _FlashorXram_entry |
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23 _FlashorXram_entry: |
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24 /* first order of business: copy iram.text to where it's supposed to be */ |
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25 ldr r8, =__iramtext_flash_addr |
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26 ldr r9, =__iramtext_ram_addr |
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27 ldr r10, =__iramtext_size |
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28 1: ldmia r8!, {r0-r7} |
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29 stmia r9!, {r0-r7} |
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30 subs r10, r10, #0x20 |
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31 bhi 1b |
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32 /* now we can call any function w/o worry as to where it lives */ |
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33 /* clear int.bss and ext.bss, using bzero() from libc */ |
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34 ldr r0, =__intbss_start |
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35 ldr r1, =__intbss_size |
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36 bl bzero |
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37 ldr r0, =__extbss_start |
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38 ldr r1, =__extbss_size |
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39 bl bzero |
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40 /* we can start Nucleus now! */ |
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41 b INT_Initialize |