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annotate target-utils/env/crt0.S @ 137:5fe5559003b7

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RV bring-up: RVT "system time" heartbeat messages now get printed every 20 s! The problem was a slight Nucleus API incompatibility between what the RVF code from TCS211 expected and what our FreeNucleus implements: in the TCS211 version of Nucleus it was OK to pass 0 for the initial_time parameter to NU_Create_Timer(), but our version flags such usage as an error. RVF used 0 as the dummy initial_time value when initializing the legacy RV timers with NU_DISABLE_TIMER. Implemented fix: using a dummy value of 1 instead.
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Mon, 11 Nov 2013 09:56:23 +0000
parents 40f607bb0a2c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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2
ddda170fa6f4 loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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1 #include "halt.h"
ddda170fa6f4 loadagent.elf compiled and linked, no printf yet
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2
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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3 .text
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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4 .code 32
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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5 .global _entry
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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6 _entry:
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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7 ldr sp, =stack_bottom
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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8 @ zero bss
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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9 ldr r0, =__bss_start
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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10 ldr r2, =__bss_end
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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11 sub r1, r2, r0
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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12 bl bzero
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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13 @ C code entry
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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14 bl main
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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15 mov r0, #HALTCODE_MAINEXITED
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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16 .global _exit
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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17 _exit: nop
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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18 1: nop
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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19 b 1b