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uPython-mirror
Commits
9d63932b
Commit
9d63932b
authored
Oct 22, 2013
by
Damien
Browse files
Add gchelper.s, to load registers and clean stack for GC.
parent
0c5827fc
Changes
1
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Inline
Side-by-side
stm/gchelper.s
0 → 100644
View file @
9d63932b
.
syntax
unified
.
cpu
cortex
-
m4
.
thumb
.
text
.
align
2
@
void
gc_helper_get_regs_and_clean_stack
(
r0
=
uint
regs
[
10
],
r1
=
heap_end
)
.
global
gc_helper_get_regs_and_clean_stack
.
thumb
.
thumb_func
.
type
gc_helper_get_regs_and_clean_stack
,
%
function
gc_helper_get_regs_and_clean_stack
:
@
store
registers
into
given
array
str
r4
,
[
r0
],
#
4
str
r5
,
[
r0
],
#
4
str
r6
,
[
r0
],
#
4
str
r7
,
[
r0
],
#
4
str
r8
,
[
r0
],
#
4
str
r9
,
[
r0
],
#
4
str
r10
,
[
r0
],
#
4
str
r11
,
[
r0
],
#
4
str
r12
,
[
r0
],
#
4
str
r13
,
[
r0
],
#
4
@
clean
the
stack
from
given
pointer
up
to
current
sp
movs
r0
,
#
0
mov
r2
,
sp
b
.
entry
.
loop
:
str
r0
,
[
r1
],
#
4
.
entry
:
cmp
r1
,
r2
bcc
.
loop
bx
lr
.
size
gc_helper_get_regs_and_clean_stack
,
.
-
gc_helper_get_regs_and_clean_stack
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