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arm/crt0.S: comment why the reset vector doesn't use absolute addressing

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26929 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2010-06-18 18:31:14 +00:00
parent b3e27a80e3
commit 3e690ac60d
1 changed files with 7 additions and 0 deletions
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7
firmware/target/arm/crt0.S
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@ -26,6 +26,13 @@
.global start
start:
/* Exception vectors */
/*
* reset vector *MUST* use relative-addressing only
* the MMU might not be enabled yet, and the PC might point to
* a memory region not present in the linked binary
*/
b newstart
b undef_instr_handler
b software_int_handler