| divsi3.S (129210) | divsi3.S (136031) |
|---|---|
| 1/* $NetBSD: divsi3.S,v 1.4 2003/04/05 23:27:15 bjh21 Exp $ */ 2 3/* 4 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 5 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 6 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 7 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 8 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 9 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 10 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 11 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 12 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 13 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 14 * SUCH DAMAGE. 15 */ 16 17#include <machine/asm.h> | 1/* $NetBSD: divsi3.S,v 1.4 2003/04/05 23:27:15 bjh21 Exp $ */ 2 3/* 4 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 5 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 6 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 7 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 8 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 9 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 10 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 11 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 12 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 13 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 14 * SUCH DAMAGE. 15 */ 16 17#include <machine/asm.h> |
| 18__FBSDID("$FreeBSD: head/sys/libkern/arm/divsi3.S 129210 2004-05-14 12:28:31Z cognet $"); | 18__FBSDID("$FreeBSD: head/sys/libkern/arm/divsi3.S 136031 2004-10-01 16:44:08Z cognet $"); |
| 19 20/* 21 * stack is aligned as there's a possibility of branching to L_overflow 22 * which makes a C call 23 */ 24 | 19 20/* 21 * stack is aligned as there's a possibility of branching to L_overflow 22 * which makes a C call 23 */ 24 |
| 25ENTRY(__umodsi3) | 25ENTRY_NP(__umodsi3) |
| 26 stmfd sp!, {lr} 27 sub sp, sp, #4 /* align stack */ 28 bl .L_udivide 29 add sp, sp, #4 /* unalign stack */ 30 mov r0, r1 31 ldmfd sp!, {pc} 32 | 26 stmfd sp!, {lr} 27 sub sp, sp, #4 /* align stack */ 28 bl .L_udivide 29 add sp, sp, #4 /* unalign stack */ 30 mov r0, r1 31 ldmfd sp!, {pc} 32 |
| 33ENTRY(__modsi3) | 33ENTRY_NP(__modsi3) |
| 34 stmfd sp!, {lr} 35 sub sp, sp, #4 /* align stack */ 36 bl .L_divide 37 add sp, sp, #4 /* unalign stack */ 38 mov r0, r1 39 ldmfd sp!, {pc} 40 41.L_overflow: 42#if !defined(_KERNEL) && !defined(_STANDALONE) 43 mov r0, #8 /* SIGFPE */ 44 bl PIC_SYM(_C_LABEL(raise), PLT) /* raise it */ 45 mov r0, #0 46#else 47 /* XXX should cause a fatal error */ 48 mvn r0, #0 49#endif 50 mov pc, lr 51 | 34 stmfd sp!, {lr} 35 sub sp, sp, #4 /* align stack */ 36 bl .L_divide 37 add sp, sp, #4 /* unalign stack */ 38 mov r0, r1 39 ldmfd sp!, {pc} 40 41.L_overflow: 42#if !defined(_KERNEL) && !defined(_STANDALONE) 43 mov r0, #8 /* SIGFPE */ 44 bl PIC_SYM(_C_LABEL(raise), PLT) /* raise it */ 45 mov r0, #0 46#else 47 /* XXX should cause a fatal error */ 48 mvn r0, #0 49#endif 50 mov pc, lr 51 |
| 52ENTRY(__udivsi3) | 52ENTRY_NP(__udivsi3) |
| 53.L_udivide: /* r0 = r0 / r1; r1 = r0 % r1 */ 54 eor r0, r1, r0 55 eor r1, r0, r1 56 eor r0, r1, r0 57 /* r0 = r1 / r0; r1 = r1 % r0 */ 58 cmp r0, #1 59 bcc .L_overflow 60 beq .L_divide_l0 --- 5 unchanged lines hidden (view full) --- 66 orrcs ip, ip, #0x10000000 /* ip bit 0x10000000 = bit 0 of r1 */ 67 b .L_divide_l1 68 69.L_divide_l0: /* r0 == 1 */ 70 mov r0, r1 71 mov r1, #0 72 mov pc, lr 73 | 53.L_udivide: /* r0 = r0 / r1; r1 = r0 % r1 */ 54 eor r0, r1, r0 55 eor r1, r0, r1 56 eor r0, r1, r0 57 /* r0 = r1 / r0; r1 = r1 % r0 */ 58 cmp r0, #1 59 bcc .L_overflow 60 beq .L_divide_l0 --- 5 unchanged lines hidden (view full) --- 66 orrcs ip, ip, #0x10000000 /* ip bit 0x10000000 = bit 0 of r1 */ 67 b .L_divide_l1 68 69.L_divide_l0: /* r0 == 1 */ 70 mov r0, r1 71 mov r1, #0 72 mov pc, lr 73 |
| 74ENTRY(__divsi3) | 74ENTRY_NP(__divsi3) |
| 75.L_divide: /* r0 = r0 / r1; r1 = r0 % r1 */ 76 eor r0, r1, r0 77 eor r1, r0, r1 78 eor r0, r1, r0 79 /* r0 = r1 / r0; r1 = r1 % r0 */ 80 cmp r0, #1 81 bcc .L_overflow 82 beq .L_divide_l0 --- 305 unchanged lines hidden --- | 75.L_divide: /* r0 = r0 / r1; r1 = r0 % r1 */ 76 eor r0, r1, r0 77 eor r1, r0, r1 78 eor r0, r1, r0 79 /* r0 = r1 / r0; r1 = r1 % r0 */ 80 cmp r0, #1 81 bcc .L_overflow 82 beq .L_divide_l0 --- 305 unchanged lines hidden --- |