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| author | Jean-Philippe Bernardy <jeanphilippe.bernardy@gmail.com> | 2005-01-27 14:16:11 +0000 |
|---|---|---|
| committer | Jean-Philippe Bernardy <jeanphilippe.bernardy@gmail.com> | 2005-01-27 14:16:11 +0000 |
| commit | b3d16d9df8d54a47c4ebaa41638af483dd719299 (patch) | |
| tree | 6963ee2c476453b6592c81531e873e0696c1a760 | |
| parent | 0d72de954a343e4c18401e6de9d54a0d183705b0 (diff) | |
| download | rockbox-b3d16d9df8d54a47c4ebaa41638af483dd719299.zip rockbox-b3d16d9df8d54a47c4ebaa41638af483dd719299.tar.gz rockbox-b3d16d9df8d54a47c4ebaa41638af483dd719299.tar.bz2 rockbox-b3d16d9df8d54a47c4ebaa41638af483dd719299.tar.xz | |
better comments
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5677 a1c6a512-1295-4272-9138-f99709370657
| -rw-r--r-- | firmware/crt0.S | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/firmware/crt0.S b/firmware/crt0.S index a0ff266..f2d4c81 100644 --- a/firmware/crt0.S +++ b/firmware/crt0.S @@ -30,7 +30,6 @@ start: clrsr ie clrsr te ld a14, #0x3F0000 - ;; copy data section from flash to ram. ld r5, 0xA5 ldb @[a14 + 6], r5 ; disable watchdog @@ -38,6 +37,7 @@ start: ld a11, #(_datacopy) ; where the data section is in the flash ld a8, #(_datastart) ; destination + ;; copy data section from flash to ram. ld a9, #_datasize ld r6, e9 cmp eq, r6, #0 @@ -57,6 +57,7 @@ start: brt .data_copy_loop .data_copy_end: + ;; zero out bss ld r2, #0 ld a8, #(_bssstart) ; destination ld a9, #_bsssize @@ -76,7 +77,8 @@ start: cmp ugt, r9, #0 brt .bss_init_loop .bss_init_end: - + + ;; set stack pointer ld a15, _stackend ;; go! |