FreeCalypso > hg > freecalypso-sw
annotate target-utils/env/crt0.S @ 584:d42078e35ac9
tpudrv12.c compiles!
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Fri, 15 Aug 2014 21:57:14 +0000 |
parents | 40f607bb0a2c |
children |
rev | line source |
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2
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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1 #include "halt.h" |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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2 |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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3 .text |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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4 .code 32 |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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5 .global _entry |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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6 _entry: |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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7 ldr sp, =stack_bottom |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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8 @ zero bss |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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9 ldr r0, =__bss_start |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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10 ldr r2, =__bss_end |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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11 sub r1, r2, r0 |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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12 bl bzero |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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13 @ C code entry |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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14 bl main |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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15 mov r0, #HALTCODE_MAINEXITED |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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16 .global _exit |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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17 _exit: nop |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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18 1: nop |
ddda170fa6f4
loadagent.elf compiled and linked, no printf yet
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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19 b 1b |