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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 27 |
POSSIBILITY OF SUCH DAMAGE. */ |
POSSIBILITY OF SUCH DAMAGE. */ |
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|
|
| 29 |
|
/* $Id$ */ |
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|
|
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#include "macros.inc" |
#include "macros.inc" |
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|
|
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#define dest_hi r25 |
#define dest_hi r25 |
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.global _U(strcat) |
.global _U(strcat) |
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.type _U(strcat), @function |
.type _U(strcat), @function |
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_U(strcat): |
_U(strcat): |
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LOAD_Z(src_lo, src_hi) |
X_movw ZL, src_lo |
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LOAD_X(dest_lo, dest_hi) |
X_movw XL, dest_lo |
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.strcat_skip: |
.L_strcat_skip: |
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ld __tmp_reg__, X+ |
ld __tmp_reg__, X+ |
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tst __tmp_reg__ |
tst __tmp_reg__ |
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brne .strcat_skip |
brne .L_strcat_skip |
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sbiw XL, 1 ; undo post-increment |
sbiw XL, 1 ; undo post-increment |
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.strcat_loop: |
.L_strcat_loop: |
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ld __tmp_reg__, Z+ |
ld __tmp_reg__, Z+ |
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st X+, __tmp_reg__ |
st X+, __tmp_reg__ |
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tst __tmp_reg__ |
tst __tmp_reg__ |
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brne .strcat_loop |
brne .L_strcat_loop |
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; return dest (unchanged) |
; return dest (unchanged) |
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ret |
ret |
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.strcat_end: |
.L_strcat_end: |
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.size _U(strcat), .strcat_end - _U(strcat) |
.size _U(strcat), .L_strcat_end - _U(strcat) |
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|
|
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#endif /* not __DOXYGEN__ */ |
#endif /* not __DOXYGEN__ */ |