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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. */ |
| 28 |
|
|
| 29 |
|
/* $Id$ */ |
| 30 |
|
|
| 31 |
/* |
/* |
| 32 |
strcasecmp_P.S |
strcasecmp_P.S |
| 33 |
Case insensitive compare |
Case insensitive compare |
| 64 |
|
|
| 65 |
#if !defined(DOXYGEN) |
#if !defined(DOXYGEN) |
| 66 |
|
|
| 67 |
.text |
.text |
| 68 |
.global _U(strcasecmp_P) |
.global _U(strcasecmp_P) |
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.type _U(strcasecmp_P), @function |
.type _U(strcasecmp_P), @function |
| 70 |
_U(strcasecmp_P): |
_U(strcasecmp_P): |
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LOAD_Z(s2_lo, s2_hi) |
X_movw ZL, s2_lo |
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LOAD_X(s1_lo, s1_hi) |
X_movw XL, s1_lo |
| 73 |
.strcasecmp_P_loop: |
.L_strcasecmp_P_loop: |
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LD ret_lo, X+ ; load *s1 |
LD ret_lo, X+ ; load *s1 |
| 75 |
LPM_R0_ZP ; load *s2 |
LPM_R0_ZP ; load *s2 |
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MOV tmp,r0 ; copy of *s2 to tmp |
MOV tmp,r0 ; copy of *s2 to tmp |
| 77 |
MOV cht, r0 ; copy of *s2 to cht |
MOV cht, r0 ; copy of *s2 to cht |
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ORI cht, 0x20 ; make tmp lower case |
ORI cht, 0x20 ; make tmp lower case |
| 79 |
CPI cht, 'a' ; test on [a .. z] |
CPI cht, 'a' ; test on [a .. z] |
| 80 |
BRLT .strcasecmp_P_tst |
BRLT .L_strcasecmp_P_tst |
| 81 |
CPI cht, 'z'+1 |
CPI cht, 'z'+1 |
| 82 |
BRGE .strcasecmp_P_tst |
BRGE .L_strcasecmp_P_tst |
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ORI tmp, 0x20 ; we got an aplpha in s2 |
ORI tmp, 0x20 ; we got an aplpha in s2 |
| 84 |
ORI ret_lo, 0x20 |
ORI ret_lo, 0x20 |
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.strcasecmp_P_tst: ; compare |
.L_strcasecmp_P_tst: ; compare |
| 86 |
SUB ret_lo, tmp |
SUB ret_lo, tmp |
| 87 |
BRNE .strcasecmp_P_done |
BRNE .L_strcasecmp_P_done |
| 88 |
TST r0 ; end of s2? |
TST r0 ; end of s2? |
| 89 |
BRNE .strcasecmp_P_loop |
BRNE .L_strcasecmp_P_loop |
| 90 |
.strcasecmp_P_done: |
.L_strcasecmp_P_done: |
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; ret_hi = SREG.C ? 0xFF : 0 |
; ret_hi = SREG.C ? 0xFF : 0 |
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SBC ret_hi, ret_hi |
SBC ret_hi, ret_hi |
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RET |
RET |
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.strcasecmp_P_end: |
.L_strcasecmp_P_end: |
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.size _U(strcasecmp_P), .strcasecmp_P_end - _U(strcasecmp_P) |
.size _U(strcasecmp_P), .L_strcasecmp_P_end - _U(strcasecmp_P) |
| 96 |
|
|
| 97 |
#endif /* not DOXYGEN */ |
#endif /* not DOXYGEN */ |