jyp: firmware crt0.S,1.21,1.22

Update of /cvsroot/rockbox/firmware
In directory labb:/tmp/cvs-serv15628

Modified Files:
        crt0.S 
Log Message:
better comments


Index: crt0.S
===================================================================
RCS file: /cvsroot/rockbox/firmware/crt0.S,v
retrieving revision 1.21
retrieving revision 1.22
diff -u -d -r1.21 -r1.22
--- crt0.S      22 Jan 2005 15:14:24 -0000      1.21
+++ crt0.S      27 Jan 2005 14:16:11 -0000      1.22
@@ -30,7 +30,6 @@
        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 @@
        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 @@
        brt .data_copy_loop
 .data_copy_end:
 
+       ;; zero out bss
        ld r2, #0
        ld a8, #(_bssstart)     ; destination
        ld a9, #_bsssize        
@@ -76,7 +77,8 @@
        cmp ugt, r9, #0
        brt .bss_init_loop
 .bss_init_end:
-       
+
+       ;; set stack pointer
        ld a15, _stackend
 
        ;; go!

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