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More GDB friendly initializations

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@247 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Linus Nielsen Feltzing 2002-04-26 08:04:50 +00:00
parent 02930523ad
commit 388f12dd08
1 changed files with 46 additions and 10 deletions
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48
firmware/crt0.S
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@ -29,20 +29,56 @@ start:
mov.l vbr_k,r1 mov.l vbr_k,r1
mov.l orig_vbr_k,r2 mov.l orig_vbr_k,r2
/* Move the serial Rx interrupt vector */ /* Move the invalid instruction vector (4) */
mov #0x69,r0 mov #4,r0
shll2 r0 shll2 r0
mov.l @(r0,r2),r3 mov.l @(r0,r2),r3
mov.l r3,@(r0,r1) mov.l r3,@(r0,r1)
/* Move the breakpoint trap vector as well (32) */ /* Move the invalid slot vector (6) */
mov #0x20,r0 mov #6,r0
shll2 r0 shll2 r0
mov.l @(r0,r2),r3 mov.l @(r0,r2),r3
mov.l r3,@(r0,r1) mov.l r3,@(r0,r1)
/* Move the single step trap vector as well (127) */ /* Move the bus error vector (9) */
mov #0x7f,r0 mov #9,r0
shll2 r0
mov.l @(r0,r2),r3
mov.l r3,@(r0,r1)
/* Move the DMA bus error vector (10) */
mov #10,r0
shll2 r0
mov.l @(r0,r2),r3
mov.l r3,@(r0,r1)
/* Move the NMI vector as well (11) */
mov #11,r0
shll2 r0
mov.l @(r0,r2),r3
mov.l r3,@(r0,r1)
/* Move the breakpoint trap vector (32) */
mov #32,r0
shll2 r0
mov.l @(r0,r2),r3
mov.l r3,@(r0,r1)
/* Move the IO trap vector (33) */
mov #33,r0
shll2 r0
mov.l @(r0,r2),r3
mov.l r3,@(r0,r1)
/* Move the serial Rx interrupt vector (105) */
mov #105,r0
shll2 r0
mov.l @(r0,r2),r3
mov.l r3,@(r0,r1)
/* Move the single step trap vector (127) */
mov #127,r0
shll2 r0 shll2 r0
mov.l @(r0,r2),r3 mov.l @(r0,r2),r3
mov.l r3,@(r0,r1) mov.l r3,@(r0,r1)