--- /dev/null
+/* Miscellaneous BPABI functions. ARMv6M implementation
+
+ Copyright (C) 2006, 2008, 2009 Free Software Foundation, Inc.
+ Contributed by CodeSourcery.
+
+ This file is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 3, or (at your option) any
+ later version.
+
+ This file is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifdef L_aeabi_lcmp
+
+FUNC_START aeabi_lcmp
+ cmp xxh, yyh
+ beq 1f
+ bgt 2f
+ mov r0, #1
+ neg r0, r0
+ RET
+2:
+ mov r0, #1
+ RET
+1:
+ sub r0, xxl, yyl
+ beq 1f
+ bhi 2f
+ mov r0, #1
+ neg r0, r0
+ RET
+2:
+ mov r0, #1
+1:
+ RET
+ FUNC_END aeabi_lcmp
+
+#endif /* L_aeabi_lcmp */
+
+#ifdef L_aeabi_ulcmp
+
+FUNC_START aeabi_ulcmp
+ cmp xxh, yyh
+ bne 1f
+ sub r0, xxl, yyl
+ beq 2f
+1:
+ bcs 1f
+ mov r0, #1
+ neg r0, r0
+ RET
+1:
+ mov r0, #1
+2:
+ RET
+ FUNC_END aeabi_ulcmp
+
+#endif /* L_aeabi_ulcmp */
+
+#ifdef L_aeabi_ldivmod
+
+FUNC_START aeabi_ldivmod
+ push {r0, r1}
+ mov r0, sp
+ push {r0, lr}
+ ldr r0, [sp, #8]
+ bl SYM(__gnu_ldivmod_helper)
+ ldr r3, [sp, #4]
+ mov lr, r3
+ add sp, sp, #8
+ pop {r2, r3}
+ RET
+ FUNC_END aeabi_ldivmod
+
+#endif /* L_aeabi_ldivmod */
+
+#ifdef L_aeabi_uldivmod
+
+FUNC_START aeabi_uldivmod
+ push {r0, r1}
+ mov r0, sp
+ push {r0, lr}
+ ldr r0, [sp, #8]
+ bl SYM(__gnu_uldivmod_helper)
+ ldr r3, [sp, #4]
+ mov lr, r3
+ add sp, sp, #8
+ pop {r2, r3}
+ RET
+ FUNC_END aeabi_uldivmod
+
+#endif /* L_aeabi_uldivmod */
+
+#ifdef L_arm_addsubsf3
+
+FUNC_START aeabi_frsub
+
+ push {r4, lr}
+ mov r4, #1
+ lsl r4, #31
+ eor r0, r0, r4
+ bl __aeabi_fadd
+ pop {r4, pc}
+
+ FUNC_END aeabi_frsub
+
+#endif /* L_arm_addsubsf3 */
+
+#ifdef L_arm_cmpsf2
+
+FUNC_START aeabi_cfrcmple
+
+ mov ip, r0
+ mov r0, r1
+ mov r1, ip
+ b 6f
+
+FUNC_START aeabi_cfcmpeq
+FUNC_ALIAS aeabi_cfcmple aeabi_cfcmpeq
+
+ @ The status-returning routines are required to preserve all
+ @ registers except ip, lr, and cpsr.
+6: push {r0, r1, r2, r3, r4, lr}
+ bl __lesf2
+ @ Set the Z flag correctly, and the C flag unconditionally.
+ cmp r0, #0
+ @ Clear the C flag if the return value was -1, indicating
+ @ that the first operand was smaller than the second.
+ bmi 1f
+ mov r1, #0
+ cmn r0, r1
+1:
+ pop {r0, r1, r2, r3, r4, pc}
+
+ FUNC_END aeabi_cfcmple
+ FUNC_END aeabi_cfcmpeq
+ FUNC_END aeabi_cfrcmple
+
+FUNC_START aeabi_fcmpeq
+
+ push {r4, lr}
+ bl __eqsf2
+ neg r0, r0
+ add r0, r0, #1
+ pop {r4, pc}
+
+ FUNC_END aeabi_fcmpeq
+
+.macro COMPARISON cond, helper, mode=sf2
+FUNC_START aeabi_fcmp\cond
+
+ push {r4, lr}
+ bl __\helper\mode
+ cmp r0, #0
+ b\cond 1f
+ mov r0, #0
+ pop {r4, pc}
+1:
+ mov r0, #1
+ pop {r4, pc}
+
+ FUNC_END aeabi_fcmp\cond
+.endm
+
+COMPARISON lt, le
+COMPARISON le, le
+COMPARISON gt, ge
+COMPARISON ge, ge
+
+#endif /* L_arm_cmpsf2 */
+
+#ifdef L_arm_addsubdf3
+
+FUNC_START aeabi_drsub
+
+ push {r4, lr}
+ mov r4, #1
+ lsl r4, #31
+ eor xxh, xxh, r4
+ bl __aeabi_dadd
+ pop {r4, pc}
+
+ FUNC_END aeabi_drsub
+
+#endif /* L_arm_addsubdf3 */
+
+#ifdef L_arm_cmpdf2
+
+FUNC_START aeabi_cdrcmple
+
+ mov ip, r0
+ mov r0, r2
+ mov r2, ip
+ mov ip, r1
+ mov r1, r3
+ mov r3, ip
+ b 6f
+
+FUNC_START aeabi_cdcmpeq
+FUNC_ALIAS aeabi_cdcmple aeabi_cdcmpeq
+
+ @ The status-returning routines are required to preserve all
+ @ registers except ip, lr, and cpsr.
+6: push {r0, r1, r2, r3, r4, lr}
+ bl __ledf2
+ @ Set the Z flag correctly, and the C flag unconditionally.
+ cmp r0, #0
+ @ Clear the C flag if the return value was -1, indicating
+ @ that the first operand was smaller than the second.
+ bmi 1f
+ mov r1, #0
+ cmn r0, r1
+1:
+ pop {r0, r1, r2, r3, r4, pc}
+
+ FUNC_END aeabi_cdcmple
+ FUNC_END aeabi_cdcmpeq
+ FUNC_END aeabi_cdrcmple
+
+FUNC_START aeabi_dcmpeq
+
+ push {r4, lr}
+ bl __eqdf2
+ neg r0, r0
+ add r0, r0, #1
+ pop {r4, pc}
+
+ FUNC_END aeabi_dcmpeq
+
+.macro COMPARISON cond, helper, mode=df2
+FUNC_START aeabi_dcmp\cond
+
+ push {r4, lr}
+ bl __\helper\mode
+ cmp r0, #0
+ b\cond 1f
+ mov r0, #0
+ pop {r4, pc}
+1:
+ mov r0, #1
+ pop {r4, pc}
+
+ FUNC_END aeabi_dcmp\cond
+.endm
+
+COMPARISON lt, le
+COMPARISON le, le
+COMPARISON gt, ge
+COMPARISON ge, ge
+
+#endif /* L_arm_cmpdf2 */
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