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Created by Reiner Patommel |
Created by Reiner Patommel |
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*/ |
*/ |
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/* $Id$ */ |
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#include "macros.inc" |
#include "macros.inc" |
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#define dest_hi r25 |
#define dest_hi r25 |
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.global _U(strcat_P) |
.global _U(strcat_P) |
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.type _U(strcat_P), @function |
.type _U(strcat_P), @function |
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_U(strcat_P): |
_U(strcat_P): |
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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_P_skip: |
.L_strcat_P_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_P_skip |
brne .L_strcat_P_skip |
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sbiw XL, 1 ; undo post-increment |
sbiw XL, 1 ; undo post-increment |
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.strcat_P_loop: |
.L_strcat_P_loop: |
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LPM_R0_ZP |
LPM_R0_ZP |
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st X+, r0 |
st X+, r0 |
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tst r0 |
tst r0 |
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brne .strcat_P_loop |
brne .L_strcat_P_loop |
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; return dest (unchanged) |
; return dest (unchanged) |
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ret |
ret |
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.strcat_P_end: |
.L_strcat_P_end: |
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.size _U(strcat_P), .strcat_P_end - _U(strcat_P) |
.size _U(strcat_P), .L_strcat_P_end - _U(strcat_P) |
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#endif /* not __DOXYGEN__ */ |
#endif /* not __DOXYGEN__ */ |