[mirror_edk2.git] / ArmPkg / Library / CompilerIntrinsicsLib / Arm / udivmoddi4.S

#------------------------------------------------------------------------------ 
#
# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution.  The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#------------------------------------------------------------------------------

	.text
	.align 2
	.globl ASM_PFX(__udivmoddi4)
	
ASM_PFX(__udivmoddi4):
	stmfd	sp!, {r4, r5, r6, r7, lr}
	add	r7, sp, #12
	stmfd	sp!, {r10, r11}
	sub	sp, sp, #20
	stmia	sp, {r2-r3}
	ldr	r6, [sp, #48]
	orrs	r2, r2, r3
	mov	r10, r0
	mov	r11, r1
	beq	L2
	subs	ip, r1, #0
	bne	L4
	cmp	r3, #0
	bne	L6
	cmp	r6, #0
	beq	L8
	mov	r1, r2
	bl	ASM_PFX(__umodsi3)
	mov	r1, #0
	stmia	r6, {r0-r1}
L8:
	ldr	r1, [sp, #0]
	mov	r0, r10
	b	L45
L6:
	cmp	r6, #0
	movne	r1, #0
	stmneia	r6, {r0-r1}
	b	L2
L4:
	ldr	r1, [sp, #0]
	cmp	r1, #0
	bne	L12
	ldr	r2, [sp, #4]
	cmp	r2, #0
	bne	L14
	cmp	r6, #0
	beq	L16
	mov	r1, r2
	mov	r0, r11
	bl	ASM_PFX(__umodsi3)
	mov	r1, #0
	stmia	r6, {r0-r1}
L16:
	ldr	r1, [sp, #4]
	mov	r0, r11
L45:
	bl	ASM_PFX(__udivsi3)
L46:
	mov	r10, r0
	mov	r11, #0
	b	L10
L14:
	subs	r1, r0, #0
	bne	L18
	cmp	r6, #0
	beq	L16
	ldr	r1, [sp, #4]
	mov	r0, r11
	bl	ASM_PFX(__umodsi3)
	mov	r4, r10
	mov	r5, r0
	stmia	r6, {r4-r5}
	b	L16
L18:
	sub	r3, r2, #1
	tst	r2, r3
	bne	L22
	cmp	r6, #0
	movne	r4, r0
	andne	r5, ip, r3
	stmneia	r6, {r4-r5}
L24:
	rsb	r3, r2, #0
	and	r3, r2, r3
	clz	r3, r3
	rsb	r3, r3, #31
	mov	r0, ip, lsr r3
	b	L46
L22:
	clz	r2, r2
	clz	r3, ip
	rsb	r3, r3, r2
	cmp	r3, #30
	bhi	L48
	rsb	r2, r3, #31
	add	lr, r3, #1
	mov	r3, r1, asl r2
	str	r3, [sp, #12]
	mov	r3, r1, lsr lr
	ldr	r0, [sp, #0]
	mov	r5, ip, lsr lr
	orr	r4, r3, ip, asl r2
	str	r0, [sp, #8]
	b	L29
L12:
	ldr	r3, [sp, #4]
	cmp	r3, #0
	bne	L30
	sub	r3, r1, #1
	tst	r1, r3
	bne	L32
	cmp	r6, #0
	andne	r3, r3, r0
	movne	r2, r3
	movne	r3, #0
	stmneia	r6, {r2-r3}
L34:
	cmp	r1, #1
	beq	L10
	rsb	r3, r1, #0
	and	r3, r1, r3
	clz	r3, r3
	rsb	r0, r3, #31
	mov	r1, ip, lsr r0
	rsb	r3, r0, #32
	mov	r0, r10, lsr r0
	orr	ip, r0, ip, asl r3
	str	r1, [sp, #12]
	str	ip, [sp, #8]
	ldrd	r10, [sp, #8]
	b	L10
L32:
	clz	r2, r1
	clz	r3, ip
	rsb	r3, r3, r2
	rsb	r4, r3, #31
	mov	r2, r0, asl r4
	mvn	r1, r3
	and	r2, r2, r1, asr #31
	add	lr, r3, #33
	str	r2, [sp, #8]
	add	r2, r3, #1
	mov	r3, r3, asr #31
	and	r0, r3, r0, asl r1
	mov	r3, r10, lsr r2
	orr	r3, r3, ip, asl r4
	and	r3, r3, r1, asr #31
	orr	r0, r0, r3
	mov	r3, ip, lsr lr
	str	r0, [sp, #12]
	mov	r0, r10, lsr lr
	and	r5, r3, r2, asr #31
	rsb	r3, lr, #31
	mov	r3, r3, asr #31
	orr	r0, r0, ip, asl r1
	and	r3, r3, ip, lsr r2
	and	r0, r0, r2, asr #31
	orr	r4, r3, r0
	b	L29
L30:
	clz	r2, r3
	clz	r3, ip
	rsb	r3, r3, r2
	cmp	r3, #31
	bls	L37
L48:
	cmp	r6, #0
	stmneia	r6, {r10-r11}
	b	L2
L37:
	rsb	r1, r3, #31
	mov	r0, r0, asl r1
	add	lr, r3, #1
	mov	r2, #0
	str	r0, [sp, #12]
	mov	r0, r10, lsr lr
	str	r2, [sp, #8]
	sub	r2, r3, #31
	and	r0, r0, r2, asr #31
	mov	r3, ip, lsr lr
	orr	r4, r0, ip, asl r1
	and	r5, r3, r2, asr #31
L29:
	mov	ip, #0
	mov	r10, ip
	b	L40
L41:
	ldr	r1, [sp, #12]
	ldr	r2, [sp, #8]
	mov	r3, r4, lsr #31
	orr	r5, r3, r5, asl #1
	mov	r3, r1, lsr #31
	orr	r4, r3, r4, asl #1
	mov	r3, r2, lsr #31
	orr	r0, r3, r1, asl #1
	orr	r1, ip, r2, asl #1
	ldmia	sp, {r2-r3}
	str	r0, [sp, #12]
	subs	r2, r2, r4
	sbc	r3, r3, r5
	str	r1, [sp, #8]
	subs	r0, r2, #1
	sbc	r1, r3, #0
	mov	r2, r1, asr #31
	ldmia	sp, {r0-r1}
	mov	r3, r2
	and	ip, r2, #1
	and	r3, r3, r1
	and	r2, r2, r0
	subs	r4, r4, r2
	sbc	r5, r5, r3
	add	r10, r10, #1
L40:
	cmp	r10, lr
	bne	L41
	ldrd	r0, [sp, #8]
	adds	r0, r0, r0
	adc	r1, r1, r1
	cmp	r6, #0
	orr	r10, r0, ip
	mov	r11, r1
	stmneia	r6, {r4-r5}
	b	L10
L2:
	mov	r10, #0
	mov	r11, #0
L10:
	mov	r0, r10
	mov	r1, r11
	sub	sp, r7, #20
	ldmfd	sp!, {r10, r11}
	ldmfd	sp!, {r4, r5, r6, r7, pc}
Commit	Line	Data
2ef2b01e A	1	#------------------------------------------------------------------------------
2ef2b01e A	2	#
d6ebcab7	3	# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
2ef2b01e	4	#
d6ebcab7	5	# This program and the accompanying materials
2ef2b01e A	6	# are licensed and made available under the terms and conditions of the BSD License
	7	# which accompanies this distribution. The full text of the license may be found at
	8	# http://opensource.org/licenses/bsd-license.php
	9	#
	10	# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
	11	# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
	12	#
	13	#------------------------------------------------------------------------------
	14
	15	.text
	16	.align 2
4e471bfd	17	.globl ASM_PFX(__udivmoddi4)
	18
	19	ASM_PFX(__udivmoddi4):
2ef2b01e A	20	stmfd sp!, {r4, r5, r6, r7, lr}
	21	add r7, sp, #12
	22	stmfd sp!, {r10, r11}
	23	sub sp, sp, #20
	24	stmia sp, {r2-r3}
	25	ldr r6, [sp, #48]
	26	orrs r2, r2, r3
	27	mov r10, r0
	28	mov r11, r1
	29	beq L2
	30	subs ip, r1, #0
	31	bne L4
	32	cmp r3, #0
	33	bne L6
	34	cmp r6, #0
	35	beq L8
	36	mov r1, r2
4e471bfd	37	bl ASM_PFX(__umodsi3)
2ef2b01e A	38	mov r1, #0
	39	stmia r6, {r0-r1}
	40	L8:
	41	ldr r1, [sp, #0]
	42	mov r0, r10
	43	b L45
	44	L6:
	45	cmp r6, #0
	46	movne r1, #0
	47	stmneia r6, {r0-r1}
	48	b L2
	49	L4:
	50	ldr r1, [sp, #0]
	51	cmp r1, #0
	52	bne L12
	53	ldr r2, [sp, #4]
	54	cmp r2, #0
	55	bne L14
	56	cmp r6, #0
	57	beq L16
	58	mov r1, r2
	59	mov r0, r11
4e471bfd	60	bl ASM_PFX(__umodsi3)
2ef2b01e A	61	mov r1, #0
	62	stmia r6, {r0-r1}
	63	L16:
	64	ldr r1, [sp, #4]
	65	mov r0, r11
	66	L45:
4e471bfd	67	bl ASM_PFX(__udivsi3)
2ef2b01e A	68	L46:
	69	mov r10, r0
	70	mov r11, #0
	71	b L10
	72	L14:
	73	subs r1, r0, #0
	74	bne L18
	75	cmp r6, #0
	76	beq L16
	77	ldr r1, [sp, #4]
	78	mov r0, r11
4e471bfd	79	bl ASM_PFX(__umodsi3)
2ef2b01e A	80	mov r4, r10
	81	mov r5, r0
	82	stmia r6, {r4-r5}
	83	b L16
	84	L18:
	85	sub r3, r2, #1
	86	tst r2, r3
	87	bne L22
	88	cmp r6, #0
	89	movne r4, r0
	90	andne r5, ip, r3
	91	stmneia r6, {r4-r5}
	92	L24:
	93	rsb r3, r2, #0
	94	and r3, r2, r3
	95	clz r3, r3
	96	rsb r3, r3, #31
	97	mov r0, ip, lsr r3
	98	b L46
	99	L22:
	100	clz r2, r2
	101	clz r3, ip
	102	rsb r3, r3, r2
	103	cmp r3, #30
	104	bhi L48
	105	rsb r2, r3, #31
	106	add lr, r3, #1
	107	mov r3, r1, asl r2
	108	str r3, [sp, #12]
	109	mov r3, r1, lsr lr
	110	ldr r0, [sp, #0]
	111	mov r5, ip, lsr lr
	112	orr r4, r3, ip, asl r2
	113	str r0, [sp, #8]
	114	b L29
	115	L12:
	116	ldr r3, [sp, #4]
	117	cmp r3, #0
	118	bne L30
	119	sub r3, r1, #1
	120	tst r1, r3
	121	bne L32
	122	cmp r6, #0
	123	andne r3, r3, r0
	124	movne r2, r3
	125	movne r3, #0
	126	stmneia r6, {r2-r3}
	127	L34:
	128	cmp r1, #1
	129	beq L10
	130	rsb r3, r1, #0
	131	and r3, r1, r3
	132	clz r3, r3
	133	rsb r0, r3, #31
	134	mov r1, ip, lsr r0
	135	rsb r3, r0, #32
	136	mov r0, r10, lsr r0
	137	orr ip, r0, ip, asl r3
	138	str r1, [sp, #12]
	139	str ip, [sp, #8]
	140	ldrd r10, [sp, #8]
	141	b L10
	142	L32:
	143	clz r2, r1
144	clz r3, ip
145	rsb r3, r3, r2
146	rsb r4, r3, #31
147	mov r2, r0, asl r4
148	mvn r1, r3
149	and r2, r2, r1, asr #31
150	add lr, r3, #33
151	str r2, [sp, #8]
152	add r2, r3, #1
153	mov r3, r3, asr #31
154	and r0, r3, r0, asl r1
155	mov r3, r10, lsr r2
156	orr r3, r3, ip, asl r4
157	and r3, r3, r1, asr #31
158	orr r0, r0, r3
159	mov r3, ip, lsr lr
160	str r0, [sp, #12]
161	mov r0, r10, lsr lr
162	and r5, r3, r2, asr #31
163	rsb r3, lr, #31
164	mov r3, r3, asr #31
165	orr r0, r0, ip, asl r1
166	and r3, r3, ip, lsr r2
167	and r0, r0, r2, asr #31
168	orr r4, r3, r0
169	b L29
170	L30:
171	clz r2, r3
172	clz r3, ip
173	rsb r3, r3, r2
174	cmp r3, #31
175	bls L37
176	L48:
177	cmp r6, #0
178	stmneia r6, {r10-r11}
179	b L2
180	L37:
181	rsb r1, r3, #31
182	mov r0, r0, asl r1
183	add lr, r3, #1
184	mov r2, #0
185	str r0, [sp, #12]
186	mov r0, r10, lsr lr
187	str r2, [sp, #8]
188	sub r2, r3, #31
189	and r0, r0, r2, asr #31
190	mov r3, ip, lsr lr
191	orr r4, r0, ip, asl r1
192	and r5, r3, r2, asr #31
193	L29:
194	mov ip, #0
195	mov r10, ip
196	b L40
197	L41:
198	ldr r1, [sp, #12]
199	ldr r2, [sp, #8]
200	mov r3, r4, lsr #31
201	orr r5, r3, r5, asl #1
202	mov r3, r1, lsr #31
203	orr r4, r3, r4, asl #1
204	mov r3, r2, lsr #31
205	orr r0, r3, r1, asl #1
206	orr r1, ip, r2, asl #1
207	ldmia sp, {r2-r3}
208	str r0, [sp, #12]
209	subs r2, r2, r4
210	sbc r3, r3, r5
211	str r1, [sp, #8]
212	subs r0, r2, #1
213	sbc r1, r3, #0
214	mov r2, r1, asr #31
215	ldmia sp, {r0-r1}
216	mov r3, r2
217	and ip, r2, #1
218	and r3, r3, r1
219	and r2, r2, r0
220	subs r4, r4, r2
221	sbc r5, r5, r3
222	add r10, r10, #1
223	L40:
224	cmp r10, lr
225	bne L41
226	ldrd r0, [sp, #8]
227	adds r0, r0, r0
228	adc r1, r1, r1
229	cmp r6, #0
230	orr r10, r0, ip
231	mov r11, r1
232	stmneia r6, {r4-r5}
233	b L10
234	L2:
235	mov r10, #0
236	mov r11, #0
237	L10:
238	mov r0, r10
239	mov r1, r11
240	sub sp, r7, #20
241	ldmfd sp!, {r10, r11}
242	ldmfd sp!, {r4, r5, r6, r7, pc}