FreeCalypso > hg > freecalypso-tools

annotate target-utils/env/crt0.S @ 416:30f6d1c32c6f

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doc/Flash-boot-defect article removed (no longer relevant) This article is no longer relevant because the issue in question only affected one (1) defective FCDEV3B board which was not and never will be sold.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 26 Oct 2018 07:11:08 +0000
parents e7502631a0f9
children
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Mychaela Falconia <falcon@freecalypso.org>
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1 #include "halt.h"
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2
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3 .text
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4 .code 32
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5 .global _entry
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6 _entry:
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7 ldr sp, =stack_bottom
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8 @ zero bss
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9 ldr r0, =__bss_start
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10 ldr r2, =__bss_end
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11 sub r1, r2, r0
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12 bl bzero
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13 @ C code entry
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14 bl main
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15 mov r0, #HALTCODE_MAINEXITED
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16 .global _exit
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17 _exit: nop
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18 1: nop
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19 b 1b