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cpu_support.S@ 363

Last change on this file since 363 was 363, checked in by ykominami, 5 years ago
add tags/jsp-1.4.4-full-UTF8
Property svn:executable set to ``*
File size: 57.9 KB

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[363]	1	/*
	2	* TOPPERS/JSP Kernel
	3	* Toyohashi Open Platform for Embedded Real-Time Systems/
	4	* Just Standard Profile Kernel
	5	*
	6	* Copyright (C) 2000-2004 by Embedded and Real-Time Systems Laboratory
	7	* Toyohashi Univ. of Technology, JAPAN
	8	* Copyright (C) 2001-2004 by Industrial Technology Institute,
	9	* Miyagi Prefectural Government, JAPAN
	10	*
	11	* ä¸è¨èä½æ¨©è
	12	ã¯ï¼ä»¥ä¸ã® (1)ã(4) ã®æ¡ä»¶ãï¼Free Software Foundation
	13	* ã«ãã£ã¦å
	14	¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
	15	* è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
	16	* ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ãä½¿ç¨ã»è¤è£½ã»æ¹å¤ã»åé
	17	å¸ï¼ä»¥ä¸ï¼
	18	* å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
	19	* (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
	20	* æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
	21	* ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
	22	* (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
	23	* ç¨ã§ããå½¢ã§åé
	24	å¸ããå ´åã«ã¯ï¼åé
	25	å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
	26	* è
	27	ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
	28	* ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
	29	* (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
	30	* ç¨ã§ããªãå½¢ã§åé
	31	å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
	32	* ã¨ï¼
	33	* (a) åé
	34	å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
	35	ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
	36	* ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
	37	* (b) åé
	38	å¸ã®å½¢æ
	39	ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
	40	* å ±åãããã¨ï¼
	41	* (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
	42	* å®³ãããï¼ä¸è¨èä½æ¨©è
	43	ããã³TOPPERSããã¸ã§ã¯ããå
	44	è²¬ãããã¨ï¼
	45	*
	46	* æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
	47	ã
	48	* ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
	49	* å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
	50	* æ¥çã¾ãã¯éæ¥çã«çãããããªãæå®³ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
	51	*
	52	* @(#) $Id: cpu_support.S,v 1.2 2004/10/07 17:10:56 honda Exp $
	53	*/
	54
	55	/*
	56	* ããã»ããµä¾åã¢ã¸ã¥ã¼ã« ã¢ã»ã³ããªè¨èªé¨ï¼PowerPCç¨ï¼
	57	*ãããããã«ã¼ãã«å
	58	é¨ã§ä½¿ç¨ããå®ç¾©
	59	*/
	60
	61	#define _MACRO_ONLY
	62	#include "jsp_kernel.h"
	63	#include "offset.h"
	64
	65	/*
	66	* TCBæ§é ä½ã®ãªãã»ããã®ãã§ãã¯
	67	*ããã15ãããã«åã¾ã£ã¦ããªãã¨ç¬¦å·æ¡å¼µãèµ·ããã
	68	*ãããæå¾
	69	ããåä½ã«ãªããªãã
	70	*/
	71	#define CHECK_OFFSET(offset) (((offset)&~0x8fff) != 0)
	72	#if CHECK_OFFSET(TCB_pc) \|\| CHECK_OFFSET(TCB_sp) \
	73	\|\| CHECK_OFFSET(TCB_enatex) \|\| CHECK_OFFSET(TCB_texptn) \
	74	\|\| CHECK_OFFSET(TCB_tinib) \|\| CHECK_OFFSET(TINIB_task) \
	75	\|\| CHECK_OFFSET(TINIB_exinf)
	76	ããã§ã³ã³ãã¤ã«ã¨ã©ã¼
	77	#endif
	78
	79
	80	/*
	81	*ãä¾å¤å¦çã®ååã§éé¿ããã¬ã¸ã¹ã¿æ°
	82	*ãããæ±ç¨ã¬ã¸ã¹ã¿ï¼gpr0-1,3-12
	83	*ãããç¹æ®ã¬ã¸ã¹ã¿ï¼LR,CTR,XER,SRR0,SRR1
	84	*/
	85	#define NUM_REG 17
	86
	87	/* ã¬ã¸ã¹ã¿ãå¾
	88	é¿ããã®ã«å¿
	89	è¦ãªãã¤ãæ° */
	90	#define GPR0_12_SPRG_AREA_SIZE (NUM_REG*4 + 4)
	91	/* +4ã¯ä¾å¤è¦å çªå·ãä¿åããã¹ãã¼ã¹ */
	92	/* æ³¨æï¼4ãã¤ãå¢çã«ãªã£ã¦ãã */
	93
	94	#define GPR13_31_AREA_SIZE (194) / gpr13-31 */
	95
	96	/*
	97	*ãæ³¨æ
	98	*ãããMPC860ã¯æµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ããªãããããã®é¨åã¯
	99	*ããããã¹ãããã¦ããªã
	100	*/
	101	#ifdef SUPPORT_FLOATING_POINT_REG
	102	/* ãã¼ãã¦ã§ã¢ã§æµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ãå®è£
	103	ããã¦ããå ´å */
	104	#define FPR_AREA_SIZE (328+8) / fpr0-31,FPSCR */
	105	#define FPR0_13_AREA_SIZE (148+8) / fpr0-14,FPSCR */
	106	#define FPR14_31_AREA_SIZE (188) / fpr15-31 */
	107
	108	#else /* SUPPORT_FLOATING_POINT_REG */
	109	/* ãã¼ãã¦ã§ã¢ã§æµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ãå®è£
	110	ããã¦ããªãå ´å */
	111	#define FPR_AREA_SIZE 0 /* fpr0-31,FPSCR */
	112	#define FPR0_13_AREA_SIZE 0 /* fpr0-14,FPSCR */
	113	#define FPR14_31_AREA_SIZE 0 /* fpr15-31 */
	114	#endif /* SUPPORT_FLOATING_POINT_REG */
	115
	116	/*
	117	* å²è¾¼ã¿ãCPUä¾å¤åä»æã®ã¬ã¸ã¹ã¿ã®å¾
	118	é¿
	119	*ããæ³¨æ
	120	*ãããæµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ã®å¾
	121	é¿ã¯ãã£ã¹ãããå¼ã³åºããããã¨ã
	122	*ãããï¼ã¿ã¹ã¯ã¹ã¤ããã®å¯è½æ§ãããã¨ãï¼ã®ã¿è¡ãã
	123	*ãããå²è¾¼ã¿ãã³ãã©ãCPUä¾å¤ãã³ãã©å
	124	ã§æµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ã
	125	*ãããä½¿ç¨ããå ´åã¯ãåãã³ãã©å
	126	ã§æµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ã®å¾
	127	é¿ï¼
	128	*ãããå¾©å
	129	ãè¡ããã¨ã
	130	*ããã
	131	*ãããr4ã®SRR1ã¯CPUä¾å¤çºçæã®CPUããã¯ç¶æ
	132	å¤å¥ã«ãä½¿ç¨ããã
	133	*ããã
	134	*/
	135	#define SAVE_GPR0_12_SPRG \
	136	subi sp, sp, GPR0_12_SPRG_AREA_SIZE; \
	137	stw r0, 0*4(sp); \
	138	stw r3, 1*4(sp); \
	139	stw r4, 2*4(sp); \
	140	stw r5, 3*4(sp); \
	141	stw r6, 4*4(sp); \
	142	stw r7, 5*4(sp); \
	143	stw r8, 6*4(sp); \
	144	stw r9, 7*4(sp); \
	145	stw r10, 8*4(sp); \
	146	stw r11, 9*4(sp); \
	147	stw r12,10*4(sp); \
	148	mfspr r3, SRR0; \
	149	stw r3, 11*4(sp); \
	150	mfspr r4, SRR1; \
	151	stw r4, 12*4(sp); \
	152	mfspr r5, LR; \
	153	stw r5, 13*4(sp); \
	154	mfspr r6, CTR; \
	155	stw r6, 14*4(sp); \
	156	mfcr r7; /* CR */ \
	157	stw r7, 15*4(sp); \
	158	mfspr r8, XER; \
	159	stw r8, 16*4(sp)
	160
	161
	162	/*
	163	* å²è¾¼ã¿ãCPUä¾å¤åä»æã®ã¬ã¸ã¹ã¿ã®å¾©å
	164
	165	* ããï¼gpr0-1,3-12, ç¹æ®ã¬ã¸ã¹ã¿ã®å¾©å
	166	ï¼
	167	*
	168	* ãããã£ã¹ãããå¼ã³åºãããªãå ´å
	169	*/
	170	#define LOAD_R0_12_SPRG \
	171	/* ç¹æ®ã¬ã¸ã¹ã¿ã®å¾©å
	172	*/ \
	173	lwz r3, 11*4(sp); \
	174	mtspr SRR0, r3; \
	175	lwz r4, 12*4(sp); \
	176	mtspr SRR1, r4; \
	177	lwz r5, 13*4(sp); \
	178	mtspr LR, r5; \
	179	lwz r6, 14*4(sp); \
	180	mtspr CTR, r6; \
	181	lwz r7, 15*4(sp); \
	182	mtcr r7; /* CR */ \
	183	lwz r8, 16*4(sp); \
	184	mtspr XER, r8; \
	185	/* æ±ç¨ã¬ã¸ã¹ã¿gpr0-1,3-12ã®å¾©å
	186	*/ \
	187	lwz r0, 0*4(sp); \
	188	lwz r3, 1*4(sp); \
	189	lwz r4, 2*4(sp); \
	190	lwz r5, 3*4(sp); \
	191	lwz r6, 4*4(sp); \
	192	lwz r7, 5*4(sp); \
	193	lwz r8, 6*4(sp); \
	194	lwz r9, 7*4(sp); \
	195	lwz r10, 8*4(sp); \
	196	lwz r11, 9*4(sp); \
	197	lwz r12, 10*4(sp)
	198	/* ãã¯ãå®ç¾©ããã¾ã§ */
	199
	200
	201	/*
	202	* CPUä¾å¤ã®å
	203	¥å£å¦çã®å
	204	ãåä¾å¤ãã¯ã¿ã«é
	205	ç½®ããååé¨å
	206	*
	207	* ããã¯ãå¼æ°
	208	* ããexc_noï¼ä¾å¤çªå·
	209	* ã
	210	* ãã¬ã¸ã¹ã¿å²ãå½ã¦
	211	* ããSPRG2ï¼exc_tableï¼CPUä¾å¤æ¬ä¼¼ãã¯ã¿ãã¼ãã«ã®å
	212	é ã¢ãã¬ã¹ï¼
	213	* ããCTRï¼Cè¨èªã«ã¼ãã³ã®å
	214	é ã¢ãã¬ã¹
	215	* ããr3ï¼CPUä¾å¤ãã³ãã©ã®å¼æ°
	216	* ããr4ï¼SRR1ã®ã³ãã¼
	217	*/
	218	#define MAKE_EXCEPTION_ENTRY(exe_no) \
	219	SAVE_GPR0_12_SPRG; /* ã¹ã¯ã©ããã¬ã¸ã¹ã¿ã®å¾
	220	é¿ */ \
	221	/* ï¼r4ã«SRR1ãã³ãã¼ãããï¼ */ \
	222	mr r3, sp; /* CPUä¾å¤ãã³ãã©ã®å¼æ°è¨å® */ \
	223	/* Cè¨èªã«ã¼ãã³ã®å
	224	é ã¢ãã¬ã¹è¨å® */ \
	225	mfspr r5, SPRG2; /* r5âSPRG2ï¼exc_table */ \
	226	/* æ¬ä¼¼ãã¯ã¿ãã¼ãã«èªã¿åºã */ \
	227	lwz r6, (exe_no<<2)(r5); \
	228	li r7, exe_no; /* ä¾å¤è¦å çªå·ã®ä¿å */ \
	229	stw r7, NUM_REG4(sp) / (cpu_experr()ã§ä½¿ç¨) */
	230
	231	/*
	232	* CPUä¾å¤ã®å
	233	¥å£å¦çã®å
	234	ãåä¾å¤ãã¯ã¿ã«é
	235	ç½®ãããªã
	236	* ååé¨åã¸ã®åå²
	237	*
	238	* ä¾å¤ãã¯ã¿ã®é
	239	ç½®ã«ãã£ã¦ã¯bå½ä»¤ã«ããåå²ï¼åå¾0x07ff,ffffï¼ã§
	240	* å±ããªãå ´åãããããã®å ´åã¯çµ¶å¯¾çªå°ãæå®ãã¦åå²ããã
	241	*/
	242	#ifdef ABSOLUTE_JUMP_EXC_ENTRY
	243	#define JUMP_EXC_ENTRY(label) \
	244	LI32(r8, label); \
	245	mtctr r8; \
	246	bctr
	247
	248	#else /* ABSOLUTE_JUMP_EXE_ENTRY */
	249	#define JUMP_EXC_ENTRY(label) b label
	250	#endif /* ABSOLUTE_JUMP_EXE_ENTRY */
	251
	252	/*
	253	* ä¾å¤ãã¯ã¿ã®å®ç¾©
	254	*/
	255
	256	#ifndef IBM_PPC_EMB_ENV
	257	/*
	258	* ãªãªã¸ãã«ã®PowerPCã¢ã¼ããã¯ãã£ã®å ´å
	259	* ããã¢ããã¼ã©MPCã·ãªã¼ãºãIPM PowerPC6xx/7xxã·ãªã¼ãºã¯
	260	* ãããã¡ãã«è©²å½ããã
	261	*/
	262
	263	/*
	264	* ä¾å¤ãã¯ã¿ãã¼ãã«ã®å
	265	é ã¢ãã¬ã¹
	266	* ãããã·ã³ã¹ãã¼ã¿ã¹ã¬ã¸ã¹ã¿MSRã®IPãããã
	267	* ãããã0ã®ã¨ãï¼0x0000,0000çªå°
	268	* ãããã1ã®ã¨ãï¼0xfff0,0000çªå°
	269	* ãããããã®ãªãã»ããã«ãªã
	270	*/
	271	#define EXCEPTION_VECTOR_BASE 0x100
	272
	273	/*
	274	* ã·ã¹ãã ãªã»ããä¾å¤
	275	*/
	276	.section ".exception_vector","rxai"
	277	.align 2
	278	.org 0x100 - EXCEPTION_VECTOR_BASE
	279
	280	System_reset_exception:
	281	JUMP_EXC_ENTRY(start) /* ã¹ã¿ã¼ãã¢ããã«ã¼ãã³ */
	282
	283	/*
	284	* ãã·ã³ã»ãã§ãã¯ä¾å¤
	285	*/
	286	.org 0x200 - EXCEPTION_VECTOR_BASE
	287
	288	Machine_check_exception:
	289	MAKE_EXCEPTION_ENTRY(EXC_NO_MACHINE_CHECK)
	290	JUMP_EXC_ENTRY(Exception_Entry)
	291
	292	/*
	293	* DSIä¾å¤
	294	* ããã¼ã¿ã»ã¡ã¢ãªã»ã¢ã¯ã»ã¹
	295	* ããã¼ã¿TLBã¨ã©ã¼ï¼ãã¹
	296	*/
	297	.org 0x300 - EXCEPTION_VECTOR_BASE
	298
	299	DSI_exception:
	300	MAKE_EXCEPTION_ENTRY(EXC_NO_DSI)
	301	JUMP_EXC_ENTRY(Exception_Entry)
	302
	303	/*
	304	* ISIä¾å¤
	305	* ãå½ä»¤ãã§ãã
	306	* ãå½ä»¤TLBã¨ã©ã¼ï¼ãã¹
	307	*/
	308	.org 0x400 - EXCEPTION_VECTOR_BASE
	309
	310	ISI_exception:
	311	MAKE_EXCEPTION_ENTRY(EXC_NO_ISI)
	312	JUMP_EXC_ENTRY(Exception_Entry)
	313
	314
	315	/*
	316	* å¤é¨å²è¾¼ã¿
	317	* ããã¹ã¦ã®å¤é¨å²ãè¾¼ã¿ã§åãçªå°ã«åå²ãã
	318	*/
	319	.org 0x500 - EXCEPTION_VECTOR_BASE
	320
	321	External_interrupt:
	322	SAVE_GPR0_12_SPRG /* ã¬ã¸ã¹ã¿ã®å¾
	323	é¿ */
	324	/*
	325	* æ¬å½ã¯ããã§ç¶ãã®å¦çãè¡ããããã0x100ãã¤ãï¼64å½ä»¤ï¼å¾ãã«
	326	* ã¢ã©ã¤ã¡ã³ãä¾å¤ã®å¦çãå
	327	¥ããããç¶ãã¯External_interrupt_1:ã§è¡
	328	* ãã
	329	*/
	330	JUMP_EXC_ENTRY(External_interrupt_1)
	331
	332	/*
	333	* ã¢ã©ã¤ã¡ã³ãä¾å¤
	334	*/
	335	.org 0x600 - EXCEPTION_VECTOR_BASE
	336
	337	Alignment_exception:
	338	MAKE_EXCEPTION_ENTRY(EXC_NO_ALIGNMENT)
	339	JUMP_EXC_ENTRY(Exception_Entry)
	340
	341	/*
	342	* ããã°ã©ã ä¾å¤
	343	* ããFloating point enabled
	344	* ããIllegal instruction
	345	* ããPrivileged instruction
	346	* ããTrap instruction
	347	*/
	348	.org 0x700 - EXCEPTION_VECTOR_BASE
	349
	350	Program_exception:
	351	MAKE_EXCEPTION_ENTRY(EXC_NO_PROGRAM)
	352	JUMP_EXC_ENTRY(Exception_Entry)
	353
	354	/*
	355	* æµ®åå°æ°ç¹ä½¿ç¨ä¸å¯
	356	*/
	357	.org 0x800 - EXCEPTION_VECTOR_BASE
	358
	359	Floating_point_unavailable:
	360	MAKE_EXCEPTION_ENTRY(EXC_NO_FLOATING_POINT_UNAVAILABLE)
	361	JUMP_EXC_ENTRY(Exception_Entry)
	362
	363	/*
	364	* ãã¯ãªã¡ã³ã¿ä¾å¤
	365	*/
	366	.org 0x900 - EXCEPTION_VECTOR_BASE
	367
	368	Decrementer_exception:
	369	MAKE_EXCEPTION_ENTRY(EXC_NO_DECREMENTER)
	370	JUMP_EXC_ENTRY(Exception_Entry)
	371
	372	/*
	373	* ã¤ã³ããªã¡ã³ãã¼ã·ã§ã³åºæã®ä¾å¤0x00a00
	374	*/
	375	#ifdef IMPLEMENT_EXCEPTION_00A00
	376	.org 0xa00 - EXCEPTION_VECTOR_BASE
	377
	378	Implementation_exception_00a00:
	379	MAKE_EXCEPTION_ENTRY(EXC_NO_IMPLEMENT_EXCEPTION_00A00)
	380	JUMP_EXC_ENTRY(Exception_Entry)
	381
	382	#endif /* IMPLEMENT_EXCEPTION_00A00 */
	383
	384
	385	/*
	386	* ã·ã¹ãã ã³ã¼ã«
	387	*/
	388	.org 0xc00 - EXCEPTION_VECTOR_BASE
	389
	390	System_call:
	391	MAKE_EXCEPTION_ENTRY(EXC_NO_SYSTEM_CALL)
	392	JUMP_EXC_ENTRY(Exception_Entry)
	393
	394	/*
	395	* ãã¬ã¼ã¹ï¼ãªãã·ã§ã³ï¼
	396	*/
	397	.org 0xd00 - EXCEPTION_VECTOR_BASE
	398
	399	Trace_exception:
	400	MAKE_EXCEPTION_ENTRY(EXC_NO_TRACE)
	401	JUMP_EXC_ENTRY(Exception_Entry)
	402
	403
	404	/*
	405	* æµ®åå°æ°ç¹è£å©
	406	*/
	407	.org 0xe00 - EXCEPTION_VECTOR_BASE
	408
	409	Floating_point_assist:
	410	MAKE_EXCEPTION_ENTRY(EXC_NO_FLOATING_POINT_ASSIST)
	411	JUMP_EXC_ENTRY(Exception_Entry)
	412
	413	/*
	414	* ã¤ã³ããªã¡ã³ãã¼ã·ã§ã³å°ç¨ã®å¦ç 0x01000-0x2ffff
	415	* ã¤ã³ããªã¡ã³ãã¼ã·ã§ã³åºæã®ä¾å¤ãã¯ã¿ï¼ï¼ã¤ã¨ã¯éããªãï¼ã
	416	* ä»ã®ç¨éã«ä½¿ç¨ããã
	417	*/
	418	#ifdef IMPLEMENT_EXCEPTION_01000_PROC
	419	.org 0x1000 - EXCEPTION_VECTOR_BASE
	420
	421	IMPLEMENT_EXCEPTION_01000_PROC
	422
	423	#endif /* IMPLEMENT_EXCEPTION_01000_PROC */
	424
	425	#else /* IBM_PPC_EMB_ENV */
	426
	427	/*
	428	* The IBM PowerPC Embedded Environmentã®å ´å
	429	* ãIBMç³»PowerPC40xã·ãªã¼ãºå¯¾å¿
	430	*/
	431
	432	/*
	433	* ä¾å¤ãã¯ã¿ãã¼ãã«ã®å
	434	é ã¢ãã¬ã¹
	435	* ã The IBM PowerPC Embedded Environmentã®å ´å
	436	* ãããã»ä¾å¤ãã¯ã¿ã®å
	437	é ã¢ãã¬ã¹ã¯EVPRã¬ã¸ã¹ã¿ã§è¨å®ãã
	438	* ãããã»ãã·ã³ã¹ãã¼ã¿ã¹ã¬ã¸ã¹ã¿MSRã®IPãããããªã
	439	*/
	440	#define EXCEPTION_VECTOR_BASE 0x100
	441
	442	/*
	443	* Critical Interrupt
	444	* ããªãã»ããï¼0x100
	445	* ãCritical Interruptã¯ã¤ã³ããªã¡ã³ãã¼ã·ã§ã³ä¾åãªã®ã§
	446	* ãå¦çå
	447	å®¹ã¯ãã¯ãå®ç¾©ãã¦ããã
	448	* ãããã¯ãåï¼CRITICAL_INTERRUPT_EXCEPTION_PROC
	449	* ããã®å¦çå
	450	å®¹ã¯0x100ãã¤ããè¶
	451	ãã¦ã¯ãããªãã
	452	* ãï¼è¶
	453	ããå ´åã¯æ®ãã®é¨åãå¥ã®å ´æã«é
	454	ç½®ãã¦ã
	455	* ããããã«åå²ãããã¨ï¼
	456	*
	457	* ãCritical Interruptã¯ã«ã¼ãã«ç®¡çå¤ã®ä¾å¤ã¨ããã
	458	* ãï¼ãã®å¦çã«ã¼ãã³å
	459	ã§ãµã¼ãã¹ã³ã¼ã«ãä½¿ç¨ããªããï¼
	460	*
	461	*ããä¾å¤ã¯ã©ã¹ï¼Critical
	462	* ãããªã¿ã¼ã³å½ä»¤ã¯rfci(Return From Critical Interrupt)
	463	* ãããç¨ããã
	464	*/
	465	.section ".exception_vector","rxai"
	466	.align 2
	467	.org 0x100 - EXCEPTION_VECTOR_BASE
	468
	469	Critical_Interrupt_exception:
	470	CRITICAL_INTERRUPT_EXCEPTION_PROC
	471	/* æ³¨æï¼ãªã¿ã¼ã³å½ä»¤ã¯rfci(Return From Critical Interrupt) */
	472
	473	/*
	474	* ãã·ã³ã»ãã§ãã¯ä¾å¤
	475	* ããã®å¦çå
	476	å®¹ã¯0x100ãã¤ããè¶
	477	ãã¦ã¯ãããªãã
	478	* ãï¼è¶
	479	ããå ´åã¯æ®ãã®é¨åãå¥ã®å ´æã«é
	480	ç½®ãã¦ã
	481	* ããããã«åå²ãããã¨ï¼
	482	*
	483	* ãã«ã¼ãã«ç®¡çå¤ã®ä¾å¤ã¨ããã
	484	* ãï¼ãã®å¦çã«ã¼ãã³å
	485	ã§ãµã¼ãã¹ã³ã¼ã«ãä½¿ç¨ããªããï¼
	486	*
	487	*ããä¾å¤ã¯ã©ã¹ï¼Critical
	488	* ãããªã¿ã¼ã³å½ä»¤ã¯rfci(Return From Critical Interrupt)
	489	* ãããç¨ããã
	490	*/
	491	.org 0x200 - EXCEPTION_VECTOR_BASE
	492
	493	Machine_check_exception:
	494	MACHINE_CHECK_PROC
	495
	496	/*
	497	* Data storageä¾å¤
	498	* ããã¼ã¿ã»ã¡ã¢ãªã»ã¢ã¯ã»ã¹
	499	*/
	500	.org 0x300 - EXCEPTION_VECTOR_BASE
	501
	502	DSI_exception:
	503	MAKE_EXCEPTION_ENTRY(EXC_NO_DATA_STORAGE)
	504	JUMP_EXC_ENTRY(Exception_Entry)
	505
	506	/*
	507	* Instruction storageä¾å¤
	508	* ãå½ä»¤ãã§ãã
	509	*/
	510	.org 0x400 - EXCEPTION_VECTOR_BASE
	511
	512	ISI_exception:
	513	MAKE_EXCEPTION_ENTRY(EXC_NO_INSTRUCTION_STORAGE)
	514	JUMP_EXC_ENTRY(Exception_Entry)
	515
	516
	517	/*
	518	* å¤é¨å²è¾¼ã¿
	519	* ããã¹ã¦ã®å¤é¨å²ãè¾¼ã¿ã§åãçªå°ã«åå²ãã
	520	*/
	521	.org 0x500 - EXCEPTION_VECTOR_BASE
	522
	523	External_interrupt:
	524	SAVE_GPR0_12_SPRG /* ã¬ã¸ã¹ã¿ã®å¾
	525	é¿ */
	526	/*
	527	* æ¬å½ã¯ããã§ç¶ãã®å¦çãè¡ããããã0x100ãã¤ãï¼64å½ä»¤ï¼å¾ãã«
	528	* ã¢ã©ã¤ã¡ã³ãä¾å¤ã®å¦çãå
	529	¥ããããç¶ãã¯External_interrupt_1:ã§è¡
	530	* ãã
	531	*/
	532	JUMP_EXC_ENTRY(External_interrupt_1)
	533
	534	/*
	535	* ã¢ã©ã¤ã¡ã³ãä¾å¤
	536	*/
	537	.org 0x600 - EXCEPTION_VECTOR_BASE
	538
	539	Alignment_exception:
	540	MAKE_EXCEPTION_ENTRY(EXC_NO_ALIGNMENT)
	541	JUMP_EXC_ENTRY(Exception_Entry)
	542
	543	/*
	544	* ããã°ã©ã ä¾å¤
	545	* ããIllegal instruction
	546	* ããPrivileged instruction
	547	* ããTrap instruction
	548	* ããFloating point enabled
	549	* ããFloating point unimplemented
	550	* ããAuxiliary processor unavailable
	551	* ããAuxiliary processor enabled
	552	*/
	553	.org 0x700 - EXCEPTION_VECTOR_BASE
	554
	555	Program_exception:
	556	MAKE_EXCEPTION_ENTRY(EXC_NO_PROGRAM)
	557	JUMP_EXC_ENTRY(Exception_Entry)
	558
	559	/*
	560	* æµ®åå°æ°ç¹ä½¿ç¨ä¸å¯
	561	*/
	562	#ifdef SUPPORT_IBM_PPC_EMB_APU /* APUãæã¤æ©ç¨®ã¯å©ç¨å¯è½ */
	563	.org 0x800 - EXCEPTION_VECTOR_BASE
	564
	565	Floating_point_unavailable:
	566	MAKE_EXCEPTION_ENTRY(EXC_NO_FLOATING_POINT_UNAVAILABLE)
	567	JUMP_EXC_ENTRY(Exception_Entry)
	568
	569	#endif /* SUPPORT_IBM_PPC_EMB_APU */
	570
	571
	572	/*
	573	* ã·ã¹ãã ã³ã¼ã«
	574	*/
	575	.org 0xc00 - EXCEPTION_VECTOR_BASE
	576
	577	System_call:
	578	MAKE_EXCEPTION_ENTRY(EXC_NO_SYSTEM_CALL)
	579	JUMP_EXC_ENTRY(Exception_Entry)
	580
	581	/*
	582	* ã¤ã³ããªã¡ã³ãã¼ã·ã§ã³å°ç¨ã®å¦çï¼ãªãã»ãã 0xd00-0xff0ï¼
	583	* ã¤ã³ããªã¡ã³ãã¼ã·ã§ã³åºæã®ä¾å¤ãã¯ã¿
	584	*
	585	* ã ãªãã»ããã®æå®æ¹æ³ã«æ³¨æãããã¨ã
	586	* ãå
	587	·ä½çã«ã¯
	588	* .org ãªãã»ãã - EXCEPTION_VECTOR_BASE
	589	* ã ã®ããã«æå®ãããè©³ããã¯ä»ã®ä¾å¤è¦å ã®è©²å½åæãåç
	590	§ã
	591	* ä¾ãã°ãPowerPC405ã§ã¯ãªãã»ãã0xf20ã«
	592	* APU Unavailableä¾å¤ã®å¦çãé
	593	ç½®ãã
	594	*/
	595	#ifdef IMPLEMENT_EXCEPTION_D00_PROC
	596
	597	IMPLEMENT_EXCEPTION_D00_PROC
	598
	599	#endif /* IMPLEMENT_EXCEPTION_D00_PROC */
	600
	601	/*
	602	* Programmable Interval timer
	603	* ã0x10ãã¤ãããé åãå²ãå½ã¦ããã¦ããªãã®ã§æ³¨æ
	604	*/
	605	.org 0x1000 - EXCEPTION_VECTOR_BASE
	606
	607	Programmable_Interval_timer:
	608	PROGRAMMABLE_INTERVAL_TIMER_PROC
	609
	610	/*
	611	* Fixed Interval timer
	612	* ã0x10ãã¤ãããé åãå²ãå½ã¦ããã¦ããªãã®ã§æ³¨æ
	613	*/
	614	.org 0x1010 - EXCEPTION_VECTOR_BASE
	615
	616	Fixed_Interval_timer:
	617	FIXED_INTERVAL_TIMER_PROC
	618
	619	/*
	620	* Watchdog timer
	621	* ããªãã»ããï¼0x1020
	622	*
	623	*ããä¾å¤ã¯ã©ã¹ï¼Critical
	624	* ãããªã¿ã¼ã³å½ä»¤ã¯rfci(Return From Critical Interrupt)
	625	* ãããç¨ããã
	626	*
	627	* ã0x10ãã¤ãããé åãå²ãå½ã¦ããã¦ããªãã®ã§æ³¨æ
	628	* ãã«ã¼ãã«ç®¡çå¤ã®ä¾å¤ã¨ããã
	629	* ãï¼ãã®å¦çã«ã¼ãã³å
	630	ã§ãµã¼ãã¹ã³ã¼ã«ãä½¿ç¨ããªããï¼
	631	*/
	632	.org 0x1020 - EXCEPTION_VECTOR_BASE
	633
	634	Watchdog_timer:
	635	WATCHDOG_TIMER_PROC
	636
	637	/*
	638	* Data TLB miss
	639	* ã0x10ãã¤ãããé åãå²ãå½ã¦ããã¦ããªãã®ã§æ³¨æ
	640	*/
	641	.org 0x1100 - EXCEPTION_VECTOR_BASE
	642
	643	Data_TLB_miss:
	644	DATA_TLB_MISS_PROC
	645
	646	/*
	647	* Instruction TLB miss
	648	* ã0x10ãã¤ãããé åãå²ãå½ã¦ããã¦ããªãã®ã§æ³¨æ
	649	*/
	650	.org 0x1200 - EXCEPTION_VECTOR_BASE
	651
	652	Instruction_TLB_miss:
	653	INSTRUCTION_TLB_MISS_PROC
	654
	655	/*
	656	* Debugä¾å¤
	657	* ããªãã»ããï¼0x2000
	658	*
	659	*ããä¾å¤ã¯ã©ã¹ï¼Critical
	660	* ãããªã¿ã¼ã³å½ä»¤ã¯rfci(Return From Critical Interrupt)
	661	* ãããç¨ããã
	662	* ã
	663	* ãè¦å ã¯ä»¥ä¸ã®7ç¨®é¡
	664	* ããTrap
	665	* ããInstruction address compare
	666	* ããData address compare
	667	* ããInstruction complete
	668	* ããBranch taken
	669	* ããException
	670	* ããUnconditional debug event
	671	* ã
	672	* ãã«ã¼ãã«ç®¡çå¤ã®ä¾å¤ã¨ããã
	673	* ãï¼ãã®å¦çã«ã¼ãã³å
	674	ã§ãµã¼ãã¹ã³ã¼ã«ãä½¿ç¨ããªããï¼
	675	* ã
	676	* ã0x10ãã¤ãããé åãå²ãå½ã¦ããã¦ããªãã®ã§æ³¨æ
	677	*/
	678	.org 0x2000 - EXCEPTION_VECTOR_BASE
	679
	680	Debug_exception:
	681	DEBUG_PROC
	682
	683
	684	/*
	685	* ã¤ã³ããªã¡ã³ãã¼ã·ã§ã³å°ç¨ã®å¦çï¼ãªãã»ãã 0x2010-0x2ff0ï¼
	686	* ã¤ã³ããªã¡ã³ãã¼ã·ã§ã³åºæã®ä¾å¤ãã¯ã¿ï¼ï¼ã¤ã¨ã¯éããªãï¼ã
	687	* ä»ã®ç¨éã«ä½¿ç¨ããã
	688	*
	689	* ã ãªãã»ããã®æå®æ¹æ³ã«æ³¨æãããã¨ã
	690	* ãå
	691	·ä½çã«ã¯
	692	* .org ãªãã»ãã - EXCEPTION_VECTOR_BASE
	693	* ã ã®ããã«æå®ãããè©³ããã¯ä»ã®ä¾å¤è¦å ã®è©²å½åæãåç
	694	§ã
	695	*/
	696	#ifdef IMPLEMENT_EXCEPTION_02010_PROC
	697
	698	IMPLEMENT_EXCEPTION_02010_PROC
	699
	700	#endif /* IMPLEMENT_EXCEPTION_01000 */
	701
	702
	703	/*
	704	* System reset
	705	* ãªã»ãããã¯ã¿ã¯0xffff,fffcçªå°ã«åºå®ããã¦ãã
	706	*/
	707	.section ".system_reset_vector","rxai"
	708	.align 2
	709
	710	/* ãã®è¡ã(0xffff,fffc - 4ãã¤ãÃ4å½ä»¤)çªå°ã«é
	711	ç½®ããã */
	712	jump_to_start:
	713	LI32(r8, start)
	714	mtctr r8
	715	bctrl
	716
	717	/* ãã®è¡ã0xffff,fffcçªå°ã«é
	718	ç½®ããã */
	719	reset_vector:
	720	b jump_to_start
	721	/* ããã«ã¯1å½ä»¤ããå
	722	¥ããªãã®ã§ç¸å¯¾åå²å½ä»¤ãç½®ãã */
	723	/* startã«ã¼ãã³ã¸ã®åå²ã¯ä¸è¨ã®jump_to_startã§è¡ãã */
	724
	725
	726	#endif /* IBM_PPC_EMB_ENV */
	727
	728
	729
	730
	731	/*
	732	* CPUä¾å¤å
	733	¥å£å¦çã«ã¼ãã³ã®ç¶ã
	734	*ããä¾å¤è¦å ã«ããããå
	735	±éã®å¦ç
	736	*ããåä¾å¤ãã¯ã¿ããåæµãã¦ãæ®ãã®å¦çãããã§è¡ãã
	737	*ãããã»ããã»ããµã³ã¢ã®æ±ç¨ã¬ã¸ã¹ã¿ã¨ç¹æ®ã¬ã¸ã¹ã¿ã®å¾
	738	é¿
	739	*ãããã»Cè¨èªã«ã¼ãã³ã®
	740	* ããã»å
	741	é ã¢ãã¬ã¹ã®è¨å®
	742	* ããã»å¼æ°ã®è¨å®
	743	*ãããæ¸ãã ç¶æ
	744	ã§ããã«æ¥ã
	745	*
	746	* ãã¬ã¸ã¹ã¿å²ãå½ã¦ï¼ãã¹ã¦è¨å®æ¸ã¿ã®ç¶æ
	747	ã§ããã«æ¥ãï¼
	748	* ããSPRG0ï¼å²è¾¼ã¿ï¼ä¾å¤ã®ãã¹ãã«ã¦ã³ã¿
	749	* ããSPRG2ï¼exc_tableï¼CPUä¾å¤æ¬ä¼¼ãã¯ã¿ãã¼ãã«ã®å
	750	é ã¢ãã¬ã¹ï¼
	751	* ããr3ï¼CPUä¾å¤ãã³ãã©ã®å¼æ°
	752	* ããr4ï¼SRR1ã®ã³ãã¼
	753	* ããr6ï¼Cè¨èªã«ã¼ãã³ã®å
	754	é ã¢ãã¬ã¹
	755	*
	756	* regflg ããã§ãã¯ããåã«å²ãè¾¼ã¿ãç¦æ¢ããªãã¨ãreqflg ããã§ãã¯
	757	* å¾ã«èµ·åãããå²ãè¾¼ã¿ãã³ãã©å
	758	ã§ãã£ã¹ããããè¦æ±ãããå ´åã«ã
	759	* ãã£ã¹ããããããªãã
	760	*
	761	* ä¾å¤ãã¯ã¿ããtextã»ã¯ã·ã§ã³ã«PCç¸å¯¾åå²ã§å±ããªããªã£ãã¨ãã®ããã
	762	* Exception_Entryãã°ãã¼ãã«å®£è¨ãã¦ããã
	763	*
	764	*/
	765
	766	.text
	767	.align 2
	768	#ifdef ABSOLUTE_JUMP_EXC_ENTRY
	769	.global Exception_Entry
	770	#endif /* ABSOLUTE_JUMP_EXC_ENTRY */
	771
	772	Exception_Entry:
	773	mtctr r6; /* CTRâCè¨èªã«ã¼ãã³ã®å
	774	é ã¢ãã¬ã¹ */
	775	/* å²è¾¼ã¿ãã¹ãã«ã¦ã³ã¿ã®ã¤ã³ã¯ãªã¡ã³ã */
	776	mfspr r8, SPRG0 /* SPRG0:å²è¾¼ã¿ï¼ä¾å¤ãã¹ãã«ã¦ã³ã¿ */
	777	addi r8, r8, 1
	778	mtspr SPRG0, r8
	779
	780	/* CPUä¾å¤çºçæã®ã³ã³ããã¹ãã®å¤å¥ */
	781	cmpwi crf0, r8, 1
	782	bne exception_from_int
	783
	784	/* åæ®µã®CPUä¾å¤ã®å ´å */
	785	exception_from_task:
	786	/*
	787	* ã³ã¼ãªã³ã°ã»ã³ã³ãã³ã·ã§ã³ã«åããã¦ãã¹ã¿ãã¯ãã¤ã³ã¿ã
	788	*ã8ãã¤ããããã¦ããã
	789	*ã
	790	* -8 ----------------------
	791	* \| task sp \|
	792	* -4 ----------------------ã
	793	* \| \|âCè¨èªã«ã¼ãã³ã®å¼ã³åºãã«ãã
	794	* STACKTOPâ ---------------------- æ¸ãè¾¼ã¾ãã
	795	*
	796	*/
	797	LI32(r9, STACKTOP-STACK_MARGIN)
	798	stw sp, 0(r9) /* ã¿ã¹ã¯ã¹ã¿ãã¯ãã¤ã³ã¿ã®ä¿å */
	799	mr sp, r9 /* ã¹ã¿ãã¯åãæ¿ã */
	800
	801
	802	/*
	803	* ãã¯ãå®ç¾©ï¼CPUä¾å¤ãã³ãã©ã®å¼åºã
	804	* ããããããåæ®µã®ä¾å¤ã¨å¤éä¾å¤ã®å
	805	±éå¦ç
	806	*
	807	* å¦çå
	808	å®¹
	809	* ãCè¨èªã«ã¼ãã³å¼ã³åºã
	810	*
	811	* å¼æ°
	812	* ã labelï¼ã©ãã«èå¥ç¨æåå
	813	* ã ããããï¼è¤æ°ç®æã§ãã®ãã¯ããä½¿ç¨ã§ããããã«ããããï¼
	814	*
	815	* åææ¡ä»¶
	816	* ã r3=Cè¨èªã«ã¼ãã³ã®å¼æ°
	817	* ã r4=SRR1
	818	* ã CTR=Cè¨èªã«ã¼ãã³ã®å
	819	é ã¢ãã¬ã¹
	820	* ããã®ç¶æ
	821	ã§ä½¿ç¨ããã
	822	*
	823	* åè
	824	* ãCPUä¾å¤ãã³ãã©ã®èµ·åã«ãããCPUããã¯ç¶æ
	825	ãå¤æ´ãã¦ã¯ãããªã
	826	* ãã¤ã¾ããCPUä¾å¤çºçæã«CPUããã¯ç¶æ
	827	ã§ããã°ãCPUããã¯ç¶æ
	828	ã®
	829	* ãã¾ã¾ãCPUä¾å¤ãã³ãã©ãèµ·åããã
	830	* ãï¼CPUä¾å¤çºçæã«CPUããã¯è§£é¤ç¶æ
	831	ã§ããã°ãCPUããã¯è§£é¤ç¶æ
	832	ã®
	833	* ããã¾ã¾ãCPUä¾å¤ãã³ãã©ãèµ·åãããï¼
	834	* ãã
	835	*/
	836	#define _CALL_EXCEPTION_ROUTINE(label) \
	837	andi. r6, r4, MSR_EE; /* r4ï¼SSR1ã®ã³ãã¼ */ \
	838	/* çµæãã¼ããªãã°ï¼CPUããã¯ç¶æ
	839	ã ã£ããªãï¼ */ \
	840	/* EQãã©ã°ãã»ãããããï¼CPUããã¯è§£é¤ç¶æ
	841	ãªãåå²ï¼ */ \
	842	bne exception_from_cpu_unlock_##label; \
	843	\
	844	/* CPUä¾å¤çºçæã«CPUããã¯ç¶æ
	845	ã ã£ãå ´å */ \
	846	/* CPUããã¯ç¶æ
	847	ã®ã¾ã¾ãCPUä¾å¤ãã³ãã©ãå¼ã³åºã */ \
	848	/* ãCè¨èªã«ã¼ãã³ããã®æ»ãçªå°ãè¨å® */ \
	849	LI32(r7, exit_CALL_EXCEPTION_ROUTINE_##label); \
	850	mtspr LR, r7; \
	851	bctr; /* Cè¨èªã«ã¼ãã³å¼ã³åºã */ \
	852	/* exit_CALL_EXCEPTION_ROUTINE_##labelçªå°ã«æ»ã£ã¦ãã */ \
	853	\
	854	/* CPUä¾å¤çºçæã«CPUããã¯è§£é¤ç¶æ
	855	ã ã£ãå ´å */ \
	856	exception_from_cpu_unlock_##label:; \
	857	mfmsr r10; \
	858	ori r11, r10, MSR_EE; /* EEããããã»ãã */ \
	859	mtmsr r11; /* å²è¾¼ã¿è¨±å¯ */ \
	860	bctrl; /* Cè¨èªã«ã¼ãã³å¼ã³åºã */ \
	861	mfmsr r10; \
	862	xori r11, r10, MSR_EE; /* EEããããã¯ãªã¢ */ \
	863	mtmsr r11; /* å²è¾¼ã¿ç¦æ¢ (a) */ \
	864	exit_CALL_EXCEPTION_ROUTINE_##label: /* ãã¯ãã®åºå£ã©ãã« */
	865
	866
	867	/* ãã¯ãå¼æ°labelãç¢ºå®ã«ãã¯ãå±éããããããã¯ãã2éã«ãã¦ãã */
	868	#define CALL_EXCEPTION_ROUTINE(label) _CALL_EXCEPTION_ROUTINE(label)
	869
	870	/* Cè¨èªã«ã¼ãã³å¼ã³åºã */
	871	CALL_EXCEPTION_ROUTINE(exception_from_task)
	872	/*
	873	* å²è¾¼ã¿ç¦æ¢ã§æ»ã£ã¦ãã
	874	*ããä¾å¤çºçæã«CPUããã¯ãè§£é¤ããã¦ããå ´åã
	875	*ããä¸è¨(a)è¡ã§å²è¾¼ã¿ç¦æ¢ã«ãã¦ãã
	876	*/
	877	li r0, 0
	878	mtspr SPRG0, r0 /* å²è¾¼ã¿ãã¹ãã«ã¦ã³ã¿ãã¯ãªã¢ */
	879	lwz sp, 0(sp) /* ã¹ã¿ãã¯åæ¿ */
	880	lis r3, reqflg@ha
	881	lwz r4, reqflg@l(r3) /* r4=reqflg */
	882	cmpwi crf0, r4, 0 /* reqflgã®ãã§ãã¯ */
	883	beq ret_to_task_exc /* ãã£ã¹ãããè¦æ±ããªãå ´åã¯åå² */
	884	stw r0, reqflg@l(r3) /* reqflgã®ã¯ãªã¢ */
	885	b ret_exc /* åºå£å¦çã¸ã¸ã£ã³ã */
	886
	887	/* å¤éä¾å¤ã®å ´å */
	888	exception_from_int:
	889	/*
	890	* ã³ã¼ãªã³ã°ã»ã³ã³ãã³ã·ã§ã³ã«åããã¦ãã¹ã¿ãã¯ãã¤ã³ã¿ã
	891	*ã8ãã¤ããããã¦ãã
	892	*ã
	893	* -8 ----------------------
	894	* \| \|
	895	* -4 ----------------------ã
	896	* \| \|âCè¨èªã«ã¼ãã³ã®å¼ã³åºãã«ãã
	897	* spâ ---------------------- æ¸ãè¾¼ã¾ãã
	898	*
	899	*/
	900	subi sp, sp, STACK_MARGIN
	901
	902	/* Cè¨èªã«ã¼ãã³å¼ã³åºã */
	903	CALL_EXCEPTION_ROUTINE(exception_from_int)
	904	/*
	905	* å²è¾¼ã¿ç¦æ¢ã§æ»ã£ã¦ãã
	906	*ããä¾å¤çºçæã«CPUããã¯ãè§£é¤ããã¦ããå ´åã
	907	*ããä¸è¨(a)è¡ã§å²è¾¼ã¿ç¦æ¢ã«ãã¦ãã
	908	* ã
	909	* ãåå²å
	910	ret_to_task_excã§ã¯CPUä¾å¤ããã®ãªã¿ã¼ã³å½ä»¤rfiã«ãã
	911	* ãããMSRâSRR1
	912	* ãã¨ãªãã®ã§ãå
	913	ã®ã³ã³ããã¹ãã«æ»ãã¨ãã«ã¯CPUä¾å¤çºç
	914	* ãç´åã®CPUããã¯ï¼ããã¯è§£é¤ç¶æ
	915	ãå¾©å
	916	ããã
	917	*/
	918	/* ã¹ã¿ãã¯ãã¤ã³ã¿ãå
	919	ã«æ»ãï¼ä¸è¨åç
	920	§ï¼ */
	921	addi sp, sp, STACK_MARGIN
	922	mfspr r3, SPRG0 /* SPRG0:å²è¾¼ã¿ï¼ä¾å¤ãã¹ãã«ã¦ã³ã¿ */
	923	subi r3, r3, 1 /* å²è¾¼ã¿ãã¹ãã«ã¦ã³ã¿ã®ãã£ã¯ãªã¡ã³ã */
	924	mtspr SPRG0, r3
	925	b ret_to_task_exc
	926
	927
	928
	929	/*
	930	* å²è¾¼ã¿åºå
	931	¥å£å¦çã«ã¼ãã³ã®ç¶ã
	932	*ããå²è¾¼ã¿ãã¯ã¿ã0x100ãã¤ãï¼64å½ä»¤åï¼ãããªãã®ã§ã
	933	*ããæ®ãã®å¦çãããã§è¡ãã
	934	*ããå²è¾¼ã¿ã³ã³ããã¼ã©ä¾åé¨ãåç´ã§ããã°64å½ä»¤ã«åã¾ã
	935	*ããããç¥ããªãããå¯èªæ§ãèæ
	936	®ãã¦ãããã«è¨è¿°ããã
	937	*ããããã»ããµã³ã¢ã®æ±ç¨ã¬ã¸ã¹ã¿ã¨ç¹æ®ã¬ã¸ã¹ã¿ã®å¾
	938	é¿ã
	939	*ããæ¸ãã ç¶æ
	940	ã§ããã«æ¥ã
	941	*
	942	* ããã¹ã¦ã®å¤é¨å²ãè¾¼ã¿ã§åãçªå°ã«åå²ãã
	943	*
	944	* SPRG0ã¬ã¸ã¹ã¿ãå²è¾¼ã¿ï¼ä¾å¤ã®ãã¹ãã«ã¦ã³ã¿ã¨ãã¦ä½¿ç¨ããã
	945	*
	946	* regflg ããã§ãã¯ããåã«å²ãè¾¼ã¿ãç¦æ¢ããªãã¨ãreqflg ããã§ãã¯
	947	* å¾ã«èµ·åãããå²ãè¾¼ã¿ãã³ãã©å
	948	ã§ãã£ã¹ããããè¦æ±ãããå ´åã«ã
	949	* ãã£ã¹ããããããªãã
	950	*
	951	* ä¾å¤ãã¯ã¿ããtextã»ã¯ã·ã§ã³ã«PCç¸å¯¾åå²ã§å±ããªããªã£ãã¨ãã®ããã
	952	* External_interrupt_1ãã°ãã¼ãã«å®£è¨ãã¦ããã
	953	*
	954	*/
	955
	956	.text
	957	.align 2
	958	#ifdef ABSOLUTE_JUMP_EXC_ENTRY
	959	.global External_interrupt_1
	960	#endif /* ABSOLUTE_JUMP_EXC_ENTRY */
	961
	962	External_interrupt_1:
	963	/* ããã»ããµã³ã¢ã®ã¬ã¸ã¹ã¿ã®å¾
	964	é¿ã¯æ¸ãã§ãã */
	965
	966	PUSH_ICU_IPM /* å²è¾¼ã¿ã³ã³ããã¼ã©ICUã®IPMãå¾
	967	é¿ */
	968	/* IPMã®ãã¼ã¿ãµã¤ãºã®å¦ä½ã«ãããã */
	969	/* ã¹ã¿ãã¯ãã¤ã³ã¿ã¯4ãã¤ãå¢çã */
	970	/* å®ããã¨ */
	971
	972	/* å²è¾¼ã¿ãã¹ãã«ã¦ã³ã¿ã®ã¤ã³ã¯ãªã¡ã³ã */
	973	mfspr r3, SPRG0 /* SPRG0:å²è¾¼ã¿ï¼ä¾å¤ãã¹ãã«ã¦ã³ã¿ */
	974	addi r3, r3, 1
	975	mtspr SPRG0, r3
	976
	977	/* å²è¾¼ã¿å
	978	ã®ã³ã³ããã¹ãã®å¤å¥ */
	979	cmpwi crf0, r3, 1
	980	bne interrupt_from_int
	981
	982	/* åæ®µã®å²è¾¼ã¿ã®å ´å */
	983	interrupt_from_task:
	984	/*
	985	* ã³ã¼ãªã³ã°ã»ã³ã³ãã³ã·ã§ã³ã«åããã¦ãã¹ã¿ãã¯ãã¤ã³ã¿ã
	986	*ã8ãã¤ããããã¦ããã
	987	*ã
	988	* -8 ----------------------
	989	* \| task sp \|
	990	* -4 ----------------------ã
	991	* \| \|âCè¨èªã«ã¼ãã³ã®å¼ã³åºãã«ãã
	992	* STACKTOPâ ---------------------- æ¸ãè¾¼ã¾ãã
	993	*
	994	*/
	995	LI32(r4, STACKTOP-STACK_MARGIN) /* r4=STACKTOP */
	996	stw sp, 0(r4) /* ã¿ã¹ã¯ã¹ã¿ãã¯ãã¤ã³ã¿ã®ä¿å */
	997	mr sp, r4 /* ã¹ã¿ãã¯åãæ¿ã */
	998
	999	/*
	1000	* ICUä¾åã®å²è¾¼ã¿å¦ç
	1001	* ã å¦çå
	1002	å®¹
	1003	* ããã»å²è¾¼ã¿è¦å ã®å¤å¥
	1004	* ããã»å²è¾¼ã¿ãã¹ã¯ã®è¨å®
	1005	* ããã»å²è¾¼ã¿è¨±å¯
	1006	* ããã»Cè¨èªã«ã¼ãã³å¼ã³åºã
	1007	* ããã»å²è¾¼ã¿ç¦æ¢
	1008	* ããã»å²ãè¾¼ã¿è¦æ±ãã©ã°ã®ã¯ãªã¢ï¼å¿
	1009	è¦ã§ããã°ï¼
	1010	*/
	1011	PROC_ICU(FROM_TASK)
	1012	/* å²è¾¼ã¿ç¦æ¢ã§æ»ã£ã¦ãã */
	1013
	1014	li r0, 0
	1015	mtspr SPRG0, r0 /* å²è¾¼ã¿ãã¹ãã«ã¦ã³ã¿ãã¯ãªã¢ */
	1016	lwz sp, 0(sp) /* ã¹ã¿ãã¯åæ¿ */
	1017	POP_ICU_IPM /* å²è¾¼ã¿ã³ã³ããã¼ã©ICUã®IPMãå¾©å¸° */
	1018	/* IPMã®ãã¼ã¿ãµã¤ãºã®å¦ä½ã«ãããã */
	1019	/* ã¹ã¿ãã¯ãã¤ã³ã¿ã¯4ãã¤ãå¢çã */
	1020	/* å®ããã¨ */
	1021	lis r3, reqflg@ha
	1022	lwz r4, reqflg@l(r3) /* r4=reqflg */
	1023	cmpwi crf0, r4, 0 /* reqflgã®ãã§ãã¯ */
	1024	beq ret_to_task_int /* ãã£ã¹ãããè¦æ±ããªãå ´åã¯åå² */
	1025	stw r0, reqflg@l(r3) /* reqflgã®ã¯ãªã¢ */
	1026	b ret_int /* åºå£å¦çã¸ã¸ã£ã³ã */
	1027
	1028
	1029	/* å¤éå²è¾¼ã¿ã®å ´å */
	1030	interrupt_from_int:
	1031	/*
	1032	* ã³ã¼ãªã³ã°ã»ã³ã³ãã³ã·ã§ã³ã«åããã¦ãã¹ã¿ãã¯ãã¤ã³ã¿ã
	1033	*ã8ãã¤ããããã¦ãã
	1034	*ã
	1035	* -8 ----------------------
	1036	* \| \|
	1037	* -4 ----------------------ã
	1038	* \| \|âCè¨èªã«ã¼ãã³ã®å¼ã³åºãã«ãã
	1039	* spâ ---------------------- æ¸ãè¾¼ã¾ãã
	1040	*
	1041	*/
	1042	subi sp, sp, STACK_MARGIN
	1043
	1044	PROC_ICU(FROM_INT) /* ICUä¾åã®å²è¾¼ã¿å¦ç */
	1045	/* å²è¾¼ã¿ç¦æ¢ã§æ»ã£ã¦ãã */
	1046
	1047	/* ã¹ã¿ãã¯ãã¤ã³ã¿ãå
	1048	ã«æ»ãï¼ä¸è¨åç
	1049	§ï¼ */
	1050	addi sp, sp, STACK_MARGIN
	1051	mfspr r3, SPRG0 /* SPRG0:å²è¾¼ã¿ï¼ä¾å¤ãã¹ãã«ã¦ã³ã¿ */
	1052	subi r3, r3, 1 /* å²è¾¼ã¿ãã¹ãã«ã¦ã³ã¿ã®ãã£ã¯ãªã¡ã³ã */
	1053	mtspr SPRG0, r3
	1054	POP_ICU_IPM /* å²è¾¼ã¿ã³ã³ããã¼ã©ICUã®IPMãå¾©å¸° */
	1055	/* IPMã®ãã¼ã¿ãµã¤ãºã®å¦ä½ã«ãããã */
	1056	/* ã¹ã¿ãã¯ãã¤ã³ã¿ã¯4ãã¤ãå¢çã */
	1057	/* å®ããã¨ */
	1058
	1059	/*
	1060	* ãã£ã¹ãããã£ãå¼ã°ãã«åç´ã«å²è¾¼ã¿å
	1061	ï¼ä¾å¤çºçå
	1062	ï¼ã«æ»ãå ´å
	1063	*
	1064	* rfiå½ä»¤ã¯åæå½ä»¤ãªã®ã§ãä¸è¨ã®ã¬ã¸ã¹ã¿ã®å¾©å¸°ã¨spã®å ç®ãçµäºãã¦
	1065	* ããå
	1066	ã®ã³ã³ããã¹ãã«æ»ãã
	1067	* spã®å ç®ã ããå
	1068	ã«æ¸ãã§å²è¾¼ã¿è¨±å¯ã«ãªãå¿é
	1069	ã¯ãªãã
	1070	*
	1071	* CPUä¾å¤ããå¾©å¸°ããå ´å
	1072	* ããCPUä¾å¤ããã®ãªã¿ã¼ã³å½ä»¤rfiã«ãã
	1073	* ãããMSRâSRR1
	1074	* ããã¨ãªãã®ã§ãå
	1075	ã®ã³ã³ããã¹ãã«æ»ãã¨ãã«ã¯CPUä¾å¤çºç
	1076	* ããç´åã®CPUããã¯ï¼ããã¯è§£é¤ç¶æ
	1077	ãå¾©å
	1078	ããã
	1079	*/
	1080	ret_to_task_int:
	1081	ret_to_task_exc:
	1082	LOAD_R0_12_SPRG /* gpr0-1,3-12, ç¹æ®ã¬ã¸ã¹ã¿ã®å¾©å
	1083	*/
	1084	addi sp, sp, GPR0_12_SPRG_AREA_SIZE
	1085	rfi /* å²è¾¼ã¿å
	1086	ã¸å¾©å¸° */
	1087
	1088
	1089
	1090	/* ã¬ã¸ã¹ã¿ãå¾
	1091	é¿ããã®ã«å¿
	1092	è¦ãªãã¤ãæ° */
	1093	/* gpr13-31,LR */
	1094	#define GPR13_31_LR_AREA_SIZE (GPR13_31_AREA_SIZE +4)
	1095
	1096	/*
	1097	* ãã¯ãå®ç¾©ï¼æ±ç¨ã¬ã¸ã¹ã¿gpr13-31ã®å¾
	1098	é¿
	1099	*/
	1100
	1101	#ifdef USE_MULTIPLE_WORD_LOAD_STORE
	1102	/*
	1103	* æ´æ°ãã¼ãï¼ã¹ãã¢ã»ãã«ããã«å½ä»¤
	1104	*ããã¤ã³ããªã¡ã³ãã¼ã·ã§ã³ã«ãã£ã¦ã¯ããã£ã¦é
	1105	ããªã£ã¦
	1106	*ãããã¾ãã®ã§æ³¨æãå¿
	1107	è¦
	1108	*/
	1109
	1110	#if SIL_ENDIAN == SIL_ENDIAN_LITTLE
	1111	ããï¼ããã§ã³ã³ãã¤ã«ã»ã¨ã©ã¼
	1112	ããããªãã«ã»ã¨ã³ãã£ã¢ã³ã»ã¢ã¼ãã«ããã¨ãã«ã¯æ©è½ããªã
	1113	ãããï¼ãã¼ãã¦ã§ã¢ã«ããå¶éäºé
	1114	ï¼
	1115	#endif
	1116
	1117
	1118	#define STORE_R13_31 \
	1119	stmw r13, 0(sp) /* gpr13-31ãå¾
	1120	é¿ */
	1121
	1122	#else /* USE_MULTIPLE_WORD_LOAD_STORE */
	1123	#define STORE_R13_31 \
	1124	stw r13, 0*4(sp); \
	1125	stw r14, 1*4(sp); \
	1126	stw r15, 2*4(sp); \
	1127	stw r16, 3*4(sp); \
	1128	stw r17, 4*4(sp); \
	1129	stw r18, 5*4(sp); \
	1130	stw r19, 6*4(sp); \
	1131	stw r20, 7*4(sp); \
	1132	stw r21, 8*4(sp); \
	1133	stw r22, 9*4(sp); \
	1134	stw r23, 10*4(sp); \
	1135	stw r24, 11*4(sp); \
	1136	stw r25, 12*4(sp); \
	1137	stw r26, 13*4(sp); \
	1138	stw r27, 14*4(sp); \
	1139	stw r28, 15*4(sp); \
	1140	stw r29, 16*4(sp); \
	1141	stw r30, 17*4(sp); \
	1142	stw r31, 18*4(sp)
	1143	#endif /* USE_MULTIPLE_WORD_LOAD_STORE */
	1144
	1145	/* ãã¯ãå®ç¾©ããã¾ã§ */
	1146
	1147
	1148	/*
	1149	* ãã¯ãå®ç¾©ï¼æ±ç¨ã¬ã¸ã¹ã¿gpr13-31ã®å¾©å
	1150
	1151	*/
	1152
	1153	#ifdef USE_MULTIPLE_WORD_LOAD_STORE
	1154	/*
	1155	* æ´æ°ãã¼ãï¼ã¹ãã¢ã»ãã«ããã«å½ä»¤
	1156	*ããã¤ã³ããªã¡ã³ãã¼ã·ã§ã³ã«ãã£ã¦ã¯ããã£ã¦é
	1157	ããªã£ã¦
	1158	*ãããã¾ãã®ã§æ³¨æãå¿
	1159	è¦
	1160	*/
	1161	#define LOAD_R13_31 \
	1162	lmw r13, 0(sp) /* gpr13-31ãå¾©å
	1163	*/
	1164
	1165	#else /* USE_MULTIPLE_WORD_LOAD_STORE */
	1166	#define LOAD_R13_31 \
	1167	lwz r13, 0*4(sp); \
	1168	lwz r14, 1*4(sp); \
	1169	lwz r15, 2*4(sp); \
	1170	lwz r16, 3*4(sp); \
	1171	lwz r17, 4*4(sp); \
	1172	lwz r18, 5*4(sp); \
	1173	lwz r19, 6*4(sp); \
	1174	lwz r20, 7*4(sp); \
	1175	lwz r21, 8*4(sp); \
	1176	lwz r22, 9*4(sp); \
	1177	lwz r23, 10*4(sp); \
	1178	lwz r24, 11*4(sp); \
	1179	lwz r25, 12*4(sp); \
	1180	lwz r26, 13*4(sp); \
	1181	lwz r27, 14*4(sp); \
	1182	lwz r28, 15*4(sp); \
	1183	lwz r29, 16*4(sp); \
	1184	lwz r30, 17*4(sp); \
	1185	lwz r31, 18*4(sp)
	1186	#endif /* USE_MULTIPLE_WORD_LOAD_STORE */
	1187
	1188	/* ãã¯ãå®ç¾©ããã¾ã§ */
	1189
	1190
	1191
	1192
	1193	/*
	1194	* ã¿ã¹ã¯ãã£ã¹ãããã£
	1195	*
	1196	* dispatch ã¯ãSPRG0 = 0,å²è¾¼ã¿ç¦æ¢ç¶æ
	1197	ã§å¼ã³åºããªããã°ãªããªãï¼
	1198	* exit_and_dispatch ãï¼SPRG0 = 0ã»å²è¾¼ã¿ç¦æ¢ç¶æ
	1199	ã§å¼ã³åºãã®ãåå
	1200	* ã§ãããï¼ã«ã¼ãã«èµ·åæã«å¯¾å¿ããããï¼SPRG0 = 1ã§å¼ã³åºããå ´å
	1201	* ã«ãå¯¾å¿ãã¦ããï¼
	1202	*/
	1203
	1204	.global dispatch
	1205	dispatch:
	1206	/* ã¹ã¯ã©ããã¬ã¸ã¹ã¿ã®å¾
	1207	é¿ */
	1208	subi sp, sp, GPR13_31_LR_AREA_SIZE + FPR14_31_AREA_SIZE
	1209	STORE_R13_31 /* gpr13-31ã®å¾
	1210	é¿ */
	1211
	1212	mfspr r7, LR
	1213	stw r7, GPR13_31_LR_AREA_SIZE - 4(sp) /* LRã®å¾
	1214	é¿ */
	1215
	1216	/* æµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ã®å¾
	1217	é¿ */
	1218	#ifdef SUPPORT_FLOATING_POINT_REG
	1219	/* ãã¼ãã¦ã§ã¢ãæµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ãå®è£
	1220	ãã¦ããå ´å */
	1221	/* æªå®æï¼æ¬æ¥ãªã8ãã¤ãã«ã¢ã©ã¤ã¡ã³ããã */
	1222	stfd f14, 0*8+GPR13_31_LR_AREA_SIZE(sp)
	1223	stfd f15, 1*8+GPR13_31_LR_AREA_SIZE(sp)
	1224	stfd f16, 2*8+GPR13_31_LR_AREA_SIZE(sp)
	1225	stfd f17, 3*8+GPR13_31_LR_AREA_SIZE(sp)
	1226	stfd f18, 4*8+GPR13_31_LR_AREA_SIZE(sp)
	1227	stfd f19, 5*8+GPR13_31_LR_AREA_SIZE(sp)
	1228	stfd f20, 6*8+GPR13_31_LR_AREA_SIZE(sp)
	1229	stfd f21, 7*8+GPR13_31_LR_AREA_SIZE(sp)
	1230	stfd f22, 8*8+GPR13_31_LR_AREA_SIZE(sp)
	1231	stfd f23, 9*8+GPR13_31_LR_AREA_SIZE(sp)
	1232	stfd f24, 10*8+GPR13_31_LR_AREA_SIZE(sp)
	1233	stfd f25, 11*8+GPR13_31_LR_AREA_SIZE(sp)
	1234	stfd f26, 12*8+GPR13_31_LR_AREA_SIZE(sp)
	1235	stfd f27, 13*8+GPR13_31_LR_AREA_SIZE(sp)
	1236	stfd f28, 14*8+GPR13_31_LR_AREA_SIZE(sp)
	1237	stfd f29, 15*8+GPR13_31_LR_AREA_SIZE(sp)
	1238	stfd f30, 16*8+GPR13_31_LR_AREA_SIZE(sp)
	1239	stfd f31, 17*8+GPR13_31_LR_AREA_SIZE(sp)
	1240	#endif /* SUPPORT_FLOATING_POINT_REG */
	1241
	1242	lis r3, runtsk@ha
	1243	LI32(r4, dispatch_r)
	1244	lwz r5, runtsk@l(r3) /* r5 = runtsk */
	1245	stw sp, TCB_sp(r5) /* runtsk->sp = sp */
	1246	stw r4, TCB_pc(r5) /* runtsk->pc = dispatch_r */
	1247	b dispatcher
	1248
	1249
	1250	/* ãã£ã¹ãããã£ã®åºå£ */
	1251	/* ã¹ã¿ãã¯ãã¤ã³ã¿ã®å¾©å
	1252	ã¯æ¸ãã§ãã */
	1253	/* ããr10ã«runtskãå
	1254	¥ã£ã¦å¼ã°ãã */
	1255	dispatch_r:
	1256	/* ã¹ã¯ã©ããã¬ã¸ã¹ã¿ã®å¾©å¸° */
	1257
	1258	/* æµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ */
	1259	#ifdef SUPPORT_FLOATING_POINT_REG
	1260	/* ãã¼ãã¦ã§ã¢ãæµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ãå®è£
	1261	ãã¦ããå ´å */
	1262	/* æªå®æï¼æ¬æ¥ãªã8ãã¤ãã«ã¢ã©ã¤ã¡ã³ããã */
	1263	lfd f14, 0*8+GPR13_31_LR_AREA_SIZE(sp)
	1264	lfd f15, 1*8+GPR13_31_LR_AREA_SIZE(sp)
	1265	lfd f16, 2*8+GPR13_31_LR_AREA_SIZE(sp)
	1266	lfd f17, 3*8+GPR13_31_LR_AREA_SIZE(sp)
	1267	lfd f18, 4*8+GPR13_31_LR_AREA_SIZE(sp)
	1268	lfd f19, 5*8+GPR13_31_LR_AREA_SIZE(sp)
	1269	lfd f20, 6*8+GPR13_31_LR_AREA_SIZE(sp)
	1270	lfd f21, 7*8+GPR13_31_LR_AREA_SIZE(sp)
	1271	lfd f22, 8*8+GPR13_31_LR_AREA_SIZE(sp)
	1272	lfd f23, 9*8+GPR13_31_LR_AREA_SIZE(sp)
	1273	lfd f24, 10*8+GPR13_31_LR_AREA_SIZE(sp)
	1274	lfd f25, 11*8+GPR13_31_LR_AREA_SIZE(sp)
	1275	lfd f26, 12*8+GPR13_31_LR_AREA_SIZE(sp)
	1276	lfd f27, 13*8+GPR13_31_LR_AREA_SIZE(sp)
	1277	lfd f28, 14*8+GPR13_31_LR_AREA_SIZE(sp)
	1278	lfd f29, 15*8+GPR13_31_LR_AREA_SIZE(sp)
	1279	lfd f30, 16*8+GPR13_31_LR_AREA_SIZE(sp)
	1280	lfd f31, 17*8+GPR13_31_LR_AREA_SIZE(sp)
	1281	#endif /* SUPPORT_FLOATING_POINT_REG */
	1282
	1283	/* æ±ç¨ã¬ã¸ã¹ã¿ */
	1284	LOAD_R13_31
	1285
	1286	/* LRã®å¾©å
	1287	*/
	1288	lwz r7, GPR13_31_LR_AREA_SIZE - 4(sp)
	1289	mtspr LR, r7
	1290
	1291	addi sp, sp, GPR13_31_LR_AREA_SIZE + FPR14_31_AREA_SIZE
	1292
	1293	/*
	1294	* ã¿ã¹ã¯ä¾å¤å¦çè¦æ±ã®ãã§ãã¯
	1295	* dispatch_rã¯dispatcherããå¼ã³åºãããããï¼
	1296	* runtskã¯r10ã«å
	1297	¥ã£ã¦ããï¼
	1298	*/
	1299	lbz r4, TCB_enatex(r10) /* r10=runtsk */
	1300	/*
	1301	* ãã¹ã¯ãã¼ã¿ã®ãããå¹
	1302	ã¨ã¨ã³ãã£ã¢ã³ã¯makeoffset.cã®
	1303	* BIT_BBããã³BIT_LBã§æå®ãã¦ãã
	1304	*/
	1305	andi. r5, r4, TCB_enatex_mask /* r5 = runtsk->enatex */
	1306	/* çµæãã¼ããªãã°ãEQãã©ã°ãã»ããããã */
	1307
	1308	/* ã¿ã¹ã¯ä¾å¤å¦çç¦æ¢ãªãdispatch()ã®å¼ã³åºãå
	1309	ã«æ»ã */
	1310	beqlr /* ï¼LRã«æ»ãçªå°ãæ ¼ç´ããã¦ããï¼ */
	1311	lwz r6, TCB_texptn(r10) /* r6 = runtsk->texptn */
	1312	cmpwi crf0, r6, 0
	1313	/* ã¿ã¹ã¯ä¾å¤è¦æ±ããªããã° */
	1314	/* dispatch()ã®å¼ã³åºãå
	1315	ã«æ»ã */
	1316	beqlr /* ï¼LRã«æ»ãçªå°ãæ ¼ç´ããã¦ããï¼ */
	1317
	1318	b call_texrtn /* ã¿ã¹ã¯ä¾å¤å¦çã«ã¼ãã³å¼ã³åºã */
	1319	/*
	1320	* call_texrtn()ããããã«ã¯æ»ã£ã¦ããªãã§ãdispatch()ã®
	1321	*ãå¼ã³åºãå
	1322	ï¼=LRã¬ã¸ã¹ã¿ãæãç¤ºãçªå°ï¼ã«ç´æ¥æ»ãã
	1323	*ã
	1324	*ãcall_texrtn()ã®å¼ã³åºãã«ãã(sp+3)ã(ps+7)çªå°ã®å
	1325	å®¹ã
	1326	*ãç ´å£ãããããspã®ä½ç½®ã¯dispatch()ãå¼ã³åºããã¨ãã¨åã
	1327	*ããªã®ã§åé¡ãªã
	1328	*ã
	1329	* spâ ----------------------
	1330	* \| \|
	1331	* +4 ----------------------ã
	1332	* \| \|âcall_texrtn()ã®å¼ã³åºãã«ãã
	1333	* +8 ---------------------- æ¸ãè¾¼ã¾ãã
	1334	*
	1335	*
	1336	*ãæ³¨æ
	1337	ãã*ããã¿ã¹ã¯ä¾å¤å¦çã«ã¼ãã³å
	1338	ã§æµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ãä½¿ç¨ãã
	1339	ãã*ããå ´åã¯ãã¿ã¹ã¯ä¾å¤å¦çã«ã¼ãã³å´ã§æµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ã®
	1340	ãã*ããå¾
	1341	é¿ï¼å¾©å
	1342	ãè¡ããã¨ã
	1343	*/
	1344
	1345
	1346	.global exit_and_dispatch
	1347	exit_and_dispatch:
	1348	li r0, 0
	1349	mtspr SPRG0, r0 /* ãã¹ãã«ã¦ã³ã¿ãã¯ãªã¢ */
	1350
	1351	dispatcher:
	1352	/*
	1353	* ããã«ã¯å²ãè¾¼ã¿ç¦æ¢ã§æ¥ããã¨
	1354	*/
	1355	LOAD_VAL32(r10, schedtsk) /* r10 = schedtsk */
	1356	lis r5, runtsk@ha
	1357	/*
	1358	* ããã§runtskã«schedtskãä»£å
	1359	¥ããã®ã¯ï¼ã¤ã®æå³ãããã
	1360	* ã(1) schedtsk != NULLã®å ´å
	1361	* ããããéå¸¸ã®ã¿ã¹ã¯åãæ¿ããè¡ãã
	1362	* ã(2) schedtsk == NULLã®å ´å
	1363	* ããããruntskã«NULLãä»£å
	1364	¥ãã¦ããã
	1365	* ããããï¼dispatcher_1ä»¥éã®å²è¾¼ã¿å¾
	1366	ã¡ã§å²è¾¼ã¿ãå
	1367	¥ãããã®ä¸ã§
	1368	* ãããããiget_tid()ãã³ã¼ã«ãããã¨ãã«æ£ããTSK_NONEãè¿ããã
	1369	* ãããããã«ã¯ãå®è¡ç¶æ
	1370	ã®ã¿ã¹ã¯ããªãæã«ãruntskãNULLã«ãã¦
	1371	* ãããããããå¿
	1372	è¦ããããï¼
	1373	*/
	1374	stw r10, runtsk@l(r5) /* runtsk=schedtsk(=r10) */
	1375
	1376	cmpwi crf0, r10, 0
	1377	beq dispatcher_1 /* schedtskãç¡ããã°å²è¾¼ã¿å¾
	1378	ã¡ã¸ */
	1379
	1380	lwz r6, TCB_pc(r10) /* å®è¡åéçªå°ãåãåºãã¦ */
	1381	mtctr r6 /* CTR<-å®è¡åéçªå° */
	1382	lwz sp, TCB_sp(r10) /* ã¹ã¿ãã¯ãã¤ã³ã¿ãå¾©å
	1383	*/
	1384	bctr /* ã¸ã£ã³ãï¼ä¸è¨åç
	1385	§ï¼ */
	1386
	1387	/*
	1388	* å®è¡åéçªå°ã¯ä»¥ä¸ã®3éã
	1389	* ããããã®å ´åãr10=runtskã§å¼ã³åºããã¨
	1390	* ããã»ãã£ã¹ãããã£ã®åºå£ãdispatch_r
	1391	* ããã»å²è¾¼ã¿ï¼ä¾å¤ã®åºå£ããret_int_r
	1392	* ããã»ã¿ã¹ã¯èµ·åç´å¾ããããactivate_r
	1393	*/
	1394
	1395
	1396	/*
	1397	*ãå®è¡ãã¹ãã¿ã¹ã¯ãç¾ããã¾ã§å¾
	1398	ã¤å¦ç
	1399	*
	1400	* ããã§éã¿ã¹ã¯ã³ã³ããã¹ãã«åãæããã®ã¯ï¼ããã§çºçããå²è¾¼ã¿
	1401	* å¦çã«ã©ã®ã¹ã¿ãã¯ãä½¿ããã¨ããåé¡ã®è§£æ±ºã¨ï¼å²è¾¼ã¿ãã³ãã©å
	1402	ã§
	1403	* ã®ã¿ã¹ã¯ãã£ã¹ãããã®é²æ¢ã¨ããäºã¤ã®æå³ãããï¼
	1404	*/
	1405	dispatcher_1:
	1406	LI32(sp, STACKTOP) /* ã¹ã¿ãã¯åãæ¿ã */
	1407	li r3, 1
	1408	mtspr SPRG0, r3 /* ãã¹ãã«ã¦ã³ã¿ï¼1 */
	1409
	1410	/* ã«ã¼ãå
	1411	ã§ä½¿ãå®æ°ãç¨æãã¦ãã */
	1412	LI32(r4, reqflg) /* reqflgã®ã¢ãã¬ã¹ */
	1413	li r0, 0
	1414
	1415	dispatcher_2:
	1416	#ifdef SUPPORT_POWER_MANAGEMENT
	1417	/* çé»åã¢ã¼ããããå ´å */
	1418	/*
	1419	* å²è¾¼ã¿è¨±å¯ã¨çé»åã¢ã¼ãã¸ã®ç§»è¡
	1420	* ãã»å²è¾¼ã¿ããæ»ã£ã¦ããå¾ã«å²è¾¼ã¿ç¦æ¢ãè¡ã
	1421	* ãã»r0ãr4ã®å
	1422	å®¹ãç ´å£ãã¦ã¯ãªããªã
	1423	*
	1424	* æ³¨æ
	1425	* ãå²è¾¼ã¿è¨±å¯ãã¨ãçé»åã¢ã¼ãã¸ã®ç§»è¡ããã¢ãããã¯ã«è¡ã
	1426	* ãªãããã»ããµã§ã¯ãå²è¾¼ã¿ã®ã¿ã¤ãã³ã°ã«ãã£ã¦ã¯ãå²è¾¼ã¿è¨±
	1427	* å¯ãã¨ãçé»åã¢ã¼ãã¸ã®ç§»è¡ãã®éã§å²è¾¼ã¿ãåãä»ãã¦ãã¾
	1428	* ããæå³ããªãå½¢ã§çé»åã¢ã¼ãã«ç§»è¡ãã¦ãã¾ãã®ã§æ³¨æã
	1429	* å²è¾¼ã¿ã«ãã£ã¦å®è¡å¯è½ãªã¿ã¹ã¯ãç¾ãã¦ãããã»ããµãã¹ãªã¼
	1430	* ãããã¾ã¾ã§å®è¡ãããªããªããï¼å®éã«ã¯ã¿ã¤ãå²è¾¼ã¿ã«ãã
	1431	* çé»åã¢ã¼ãããå¾©å¸°ããã®ã§ãã¿ã¹ã¯ãå¾
	1432	ããããæéã¯æå¤§
	1433	* ã§ãã¿ã¤ãå²è¾¼ã¿å¨æã§æ¼ããããããï¼
	1434	*/
	1435	SAVE_POWPER
	1436	#else /* SUPPORT_POWER_MANAGEMENT */
	1437	/* çé»åã¢ã¼ãããªãå ´å */
	1438	mfmsr r5
	1439	ori r6, r5, MSR_EE
	1440	mtmsr r6 /* å²è¾¼ã¿è¨±å¯ */
	1441	/* ããã§å²è¾¼ã¿ãå
	1442	¥ã£ã¦ãæ»ã£ã¦ãã */
	1443	mtmsr r5 /* å²è¾¼ã¿ç¦æ¢ */
	1444	#endif /* SUPPORT_POWER_MANAGEMENT */
	1445	lwz r6, 0(r4) /* r6 = reqflg */
	1446	cmpwi crf0, r6, 0
	1447	/* ãã£ã¹ãããè¦æ±ããªããã°ã«ã¼ãã®å
	1448	é ã¸ */
	1449	beq dispatcher_2
	1450	stw r0, 0(r4) /* reqflgãã¯ãªã¢ */
	1451	mtspr SPRG0, r0 /* ãã¹ãã«ã¦ã³ã¿ãã¯ãªã¢ */
	1452	b dispatcher /* å®è¡åéçªå°ãåãåºãå¦çã¸ã¸ã£ã³ã */
	1453
	1454	/*
	1455	*ãå²è¾¼ã¿å¾
	1456	ã¡ã®ç´åã«è¡ã£ãã¹ã¿ãã¯åæ¿ã®æ»ããè¡ã£ã¦ããªããã
	1457	*ããã£ã¹ãããã£ã®åºå£ã§TCBããåãåºããå¤ãã¹ã¿ãã¯ãã¤ã³
	1458	*ãã¿ã«è¨å®ããã®ã§åé¡ãªãã
	1459	*/
	1460
	1461
	1462
	1463	/*
	1464	* å²ãè¾¼ã¿ãã³ãã©/CPUä¾å¤ãã³ãã©åºå£å¦ç
	1465	*
	1466	* æ»ãå
	1467	ãã¿ã¹ã¯ã§reqflgãã»ããããã¦ããå ´åã®ã¿ããã«ããã
	1468	* SPRG0 = 0,å²ãè¾¼ã¿ç¦æ¢ç¶æ
	1469	,ã¹ã¯ã©ããã¬ã¸ã¹ã¿ãä¿åãã
	1470	* ç¶æ
	1471	ã§å¼ã³åºããã¨ã
	1472	*
	1473	* ã¾ããr10ã«runtskã®å¤ãå
	1474	¥ãã¦ããret_int_1ã«ã¸ã£ã³ããããã¨
	1475	*/
	1476
	1477	ret_int:
	1478	ret_exc:
	1479	LOAD_VAL32(r5, enadsp) /* r5 = enadsp */
	1480	LOAD_VAL32(r10, runtsk) /* r10 = runtsk */
	1481	cmpwi crf0, r5, 0
	1482	beq ret_int_1 /* ãã£ã¹ãããç¦æ¢ãªãã¸ã£ã³ã */
	1483
	1484	LOAD_VAL32(r5, schedtsk) /* r5 = schedtsk */
	1485	cmpw crf0, r5, r10
	1486	beq ret_int_1 /* runtsk=schedtskãªãã¸ã£ã³ã */
	1487
	1488
	1489	/* æ®ãã®ã¬ã¸ã¹ã¿ãä¿å */
	1490
	1491	subi sp, sp, GPR13_31_AREA_SIZE + FPR_AREA_SIZE
	1492	/* æ±ç¨ã¬ã¸ã¹ã¿ã®å¾
	1493	é¿ */
	1494	STORE_R13_31 /* gpr13-31ã®å¾
	1495	é¿ */
	1496
	1497	/* æµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ã®å¾
	1498	é¿ */
	1499	#ifdef SUPPORT_FLOATING_POINT_REG
	1500	/* ãã¼ãã¦ã§ã¢ãæµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ãå®è£
	1501	ãã¦ããå ´å */
	1502	/* æªå®æï¼æ¬æ¥ãªã8ãã¤ãã«ã¢ã©ã¤ã¡ã³ããã */
	1503	stfd f0, 0*8+GPR13_31_AREA_SIZE(sp)
	1504	stfd f1, 1*8+GPR13_31_AREA_SIZE(sp)
	1505	stfd f2, 2*8+GPR13_31_AREA_SIZE(sp)
	1506	stfd f3, 3*8+GPR13_31_AREA_SIZE(sp)
	1507	stfd f4, 4*8+GPR13_31_AREA_SIZE(sp)
	1508	stfd f5, 5*8+GPR13_31_AREA_SIZE(sp)
	1509	stfd f6, 6*8+GPR13_31_AREA_SIZE(sp)
	1510	stfd f7, 7*8+GPR13_31_AREA_SIZE(sp)
	1511	stfd f8, 8*8+GPR13_31_AREA_SIZE(sp)
	1512	stfd f9, 9*8+GPR13_31_AREA_SIZE(sp)
	1513	stfd f10, 10*8+GPR13_31_AREA_SIZE(sp)
	1514	stfd f11, 11*8+GPR13_31_AREA_SIZE(sp)
	1515	stfd f12, 12*8+GPR13_31_AREA_SIZE(sp)
	1516	stfd f13, 13*8+GPR13_31_AREA_SIZE(sp)
	1517	stfd f14, 14*8+GPR13_31_AREA_SIZE(sp)
	1518	stfd f15, 15*8+GPR13_31_AREA_SIZE(sp)
	1519	stfd f16, 16*8+GPR13_31_AREA_SIZE(sp)
	1520	stfd f17, 17*8+GPR13_31_AREA_SIZE(sp)
	1521	stfd f18, 18*8+GPR13_31_AREA_SIZE(sp)
	1522	stfd f19, 19*8+GPR13_31_AREA_SIZE(sp)
	1523	stfd f20, 20*8+GPR13_31_AREA_SIZE(sp)
	1524	stfd f21, 21*8+GPR13_31_AREA_SIZE(sp)
	1525	stfd f22, 22*8+GPR13_31_AREA_SIZE(sp)
	1526	stfd f23, 23*8+GPR13_31_AREA_SIZE(sp)
	1527	stfd f24, 24*8+GPR13_31_AREA_SIZE(sp)
	1528	stfd f25, 25*8+GPR13_31_AREA_SIZE(sp)
	1529	stfd f26, 26*8+GPR13_31_AREA_SIZE(sp)
	1530	stfd f27, 27*8+GPR13_31_AREA_SIZE(sp)
	1531	stfd f28, 28*8+GPR13_31_AREA_SIZE(sp)
	1532	stfd f29, 29*8+GPR13_31_AREA_SIZE(sp)
	1533	stfd f30, 30*8+GPR13_31_AREA_SIZE(sp)
	1534	stfd f31, 31*8+GPR13_31_AREA_SIZE(sp)
	1535	/*
	1536	* FPSCRã®å¾
	1537	é¿
	1538	*
	1539	*ããã¹ã¿ãã¯ã8ãã¤ãä½¿ç¨ããã®ã¯ç¡é§ã§ãããã
	1540	*ããstfiwxå½ä»¤ã¯ãªãã·ã§ã³ãªã®ã§é¸æããªãã£ãã
	1541	*ããï¼ã¾ããå¯¾å¿ãããã¼ãå½ä»¤ããªãã®ãåé¡ï¼
	1542	*
	1543	*/
	1544	mffs f0 /* f0ã®ä¸ä½2ãã¤ãâFPSCR */
	1545	/* @(sp+ãªãã»ãã)âf0 */
	1546	stfd f0, GPR13_31_AREA_SIZE+FPR0_13_AREA_SIZE-8(sp)
	1547	#endif /* SUPPORT_FLOATING_POINT_REG */
	1548
	1549	LI32(r5, ret_int_r)
	1550	/* r10 = runtskã§ããã«æ¥ã */
	1551	stw sp, TCB_sp(r10) /* runtsk->sp = sp */
	1552	/* ã¿ã¹ã¯ã¹ã¿ãã¯ãã¤ã³ã¿ã®ä¿å */
	1553	stw r5, TCB_pc(r10) /* runtsk->pc = ret_int_r */
	1554	/* ï¼å®è¡åéçªå°ã®ä¿åï¼ */
	1555
	1556	b dispatcher /* ãã£ã¹ãããã£å¼ã³åºã */
	1557
	1558
	1559	/* å²è¾¼ã¿ï¼ä¾å¤ã®åºå£å¦çã®å¾åé¨å
	1560	* ret_intãã
	1561	* ãã»ç´æ¥ãret_int_1ã«åæµããå ´å
	1562	* ãã»ãã£ã¹ãããã£ãçµç±ãã¦ãã£ã¦æ¥ãå ´å
	1563	* ãã®2éããã
	1564	* ããããã®å ´åãr10ã«runtskãå
	1565	¥ã£ã¦ãã
	1566	*/
	1567	ret_int_r:
	1568
	1569	#ifdef SUPPORT_FLOATING_POINT_REG
	1570	/* ãã¼ãã¦ã§ã¢ãæµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ãå®è£
	1571	ãã¦ããå ´å */
	1572
	1573	/* FPSCRã®å¾©å
	1574	*/
	1575	lfd f0, GPR13_31_AREA_SIZE+FPR0_13_AREA_SIZE-8(sp)
	1576	mtfsf 0xf,f0 /* FPSCRâf0ã®ä¸ä½2ãã¤ã */
	1577
	1578	/* æµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ã®å¾©å
	1579	*/
	1580	lfd f0, 0*8+GPR13_31_AREA_SIZE(sp)
	1581	lfd f1, 1*8+GPR13_31_AREA_SIZE(sp)
	1582	lfd f2, 2*8+GPR13_31_AREA_SIZE(sp)
	1583	lfd f3, 3*8+GPR13_31_AREA_SIZE(sp)
	1584	lfd f4, 4*8+GPR13_31_AREA_SIZE(sp)
	1585	lfd f5, 5*8+GPR13_31_AREA_SIZE(sp)
	1586	lfd f6, 6*8+GPR13_31_AREA_SIZE(sp)
	1587	lfd f7, 7*8+GPR13_31_AREA_SIZE(sp)
	1588	lfd f8, 8*8+GPR13_31_AREA_SIZE(sp)
	1589	lfd f9, 9*8+GPR13_31_AREA_SIZE(sp)
	1590	lfd f10, 10*8+GPR13_31_AREA_SIZE(sp)
	1591	lfd f11, 11*8+GPR13_31_AREA_SIZE(sp)
	1592	lfd f12, 12*8+GPR13_31_AREA_SIZE(sp)
	1593	lfd f13, 13*8+GPR13_31_AREA_SIZE(sp)
	1594	lfd f14, 14*8+GPR13_31_AREA_SIZE(sp)
	1595	lfd f15, 15*8+GPR13_31_AREA_SIZE(sp)
	1596	lfd f16, 16*8+GPR13_31_AREA_SIZE(sp)
	1597	lfd f17, 17*8+GPR13_31_AREA_SIZE(sp)
	1598	lfd f18, 18*8+GPR13_31_AREA_SIZE(sp)
	1599	lfd f19, 19*8+GPR13_31_AREA_SIZE(sp)
	1600	lfd f20, 20*8+GPR13_31_AREA_SIZE(sp)
	1601	lfd f21, 21*8+GPR13_31_AREA_SIZE(sp)
	1602	lfd f22, 22*8+GPR13_31_AREA_SIZE(sp)
	1603	lfd f23, 23*8+GPR13_31_AREA_SIZE(sp)
	1604	lfd f24, 24*8+GPR13_31_AREA_SIZE(sp)
	1605	lfd f25, 25*8+GPR13_31_AREA_SIZE(sp)
	1606	lfd f26, 26*8+GPR13_31_AREA_SIZE(sp)
	1607	lfd f27, 27*8+GPR13_31_AREA_SIZE(sp)
	1608	lfd f28, 28*8+GPR13_31_AREA_SIZE(sp)
	1609	lfd f29, 29*8+GPR13_31_AREA_SIZE(sp)
	1610	lfd f30, 30*8+GPR13_31_AREA_SIZE(sp)
	1611	lfd f31, 31*8+GPR13_31_AREA_SIZE(sp)
	1612	#endif /* SUPPORT_FLOATING_POINT_REG */
	1613
	1614	/* æ±ç¨ã¬ã¸ã¹ã¿ã®å¾©å
	1615	*/
	1616	LOAD_R13_31 /* gpr13-31ã®å¾©å
	1617	*/
	1618	addi sp, sp, GPR13_31_AREA_SIZE + FPR_AREA_SIZE
	1619
	1620	/* ãã£ã¹ãããã£ãçµç±ããªãå ´åã¯ããããåæµ */
	1621	/* ï¼r10ã«runtskãå
	1622	¥ã£ãç¶æ
	1623	ã§ããã«æ¥ãï¼ */
	1624	ret_int_1:
	1625	/* ã¿ã¹ã¯ä¾å¤å¦çè¦æ±ã®ãã§ãã¯ */
	1626	/* r10 = runtsk */
	1627	lbz r4, TCB_enatex(r10)
	1628	/*
	1629	* ãã¹ã¯ãã¼ã¿ã®ãããå¹
	1630	ã¨ã¨ã³ãã£ã¢ã³ã¯makeoffset.cã®
	1631	* BIT_BBããã³BIT_LBã§æå®ãã¦ãã
	1632	*/
	1633	andi. r5, r4, TCB_enatex_mask /* r5 = runtsk->enatex */
	1634	/* çµæãã¼ããªãã°ãEQãã©ã°ãã»ããããã */
	1635	beq ret_int_2 /* ã¿ã¹ã¯ä¾å¤å¦çç¦æ¢ãªãã¸ã£ã³ã */
	1636	lwz r6, TCB_texptn(r10) /* r6 = runtsk->texptn */
	1637	/* ã¿ã¹ã¯ä¾å¤è¦æ±ããªããã°ãªãã¸ã£ã³ã */
	1638	cmpwi crf0, r6, 0
	1639	beq ret_int_2
	1640
	1641	/*
	1642	* ã³ã¼ãªã³ã°ã»ã³ã³ãã³ã·ã§ã³ã«åããã¦ãã¹ã¿ãã¯ãã¤ã³ã¿ã
	1643	*ã8ãã¤ããããã¦ããã
	1644	*ã
	1645	* -8 ----------------------
	1646	* \| \|
	1647	* -4 ----------------------ã
	1648	* \| \|âcall_texrtn()ã®å¼ã³åºãã«ãã
	1649	* spâ ---------------------- æ¸ãè¾¼ã¾ãã
	1650	*
	1651	*/
	1652	subi sp, sp, STACK_MARGIN
	1653
	1654	bl call_texrtn /* ã¿ã¹ã¯ä¾å¤å¦çã«ã¼ãã³å¼ã³åºã */
	1655	/* ã¹ã¿ãã¯ãã¤ã³ã¿ãå
	1656	ã«æ»ãï¼ä¸è¨åç
	1657	§ï¼ */
	1658	addi sp, sp, STACK_MARGIN
	1659	/*
	1660	*ãæ³¨æ
	1661	ãã*ããã¿ã¹ã¯ä¾å¤å¦çã«ã¼ãã³å
	1662	ã§æµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ãä½¿ç¨ãã
	1663	ãã*ããå ´åã¯ãã¿ã¹ã¯ä¾å¤å¦çã«ã¼ãã³å´ã§æµ®åå°æ°ç¹ã¬ã¸ã¹ã¿ã®
	1664	ãã*ããå¾
	1665	é¿ï¼å¾©å
	1666	ãè¡ããã¨ã
	1667	*/
	1668
	1669	ret_int_2:
	1670	/*
	1671	*ãcall_texrtn()ããããã«æ»ã£ã¦æ¥ãã(ä¸è¨addiå½ä»¤ãçµç±ï¼
	1672	*ãï¼call_texrtn()ãå¼ã°ãªãå ´åã¯ç´æ¥ããã«æ¥ãï¼
	1673	*
	1674	ãã*ããçµæçã«ret_to_task_intã¨åãå¦çã«ãªã£ããã
	1675	ãã*ããç¡çã«ã¾ã¨ããã¨å¯èªæ§ãæªããªãã®ã§
	1676	ãã*ããå¥ã
	1677	ã®ã¾ã¾ã«ãã¦ããã
	1678	*/
	1679	LOAD_R0_12_SPRG /* gpr0-1,3-12, ç¹æ®ã¬ã¸ã¹ã¿ã®å¾©å
	1680	*/
	1681	addi sp, sp, GPR0_12_SPRG_AREA_SIZE
	1682	/*
	1683	* rfiå½ä»¤ã¯åæå½ä»¤ãªã®ã§ãä¸è¨ã®ã¬ã¸ã¹ã¿ã®å¾©å¸°ã¨spã®å ç®ãçµäºãã¦
	1684	* ããå
	1685	ã®ã³ã³ããã¹ãã«æ»ãã
	1686	* spã®å ç®ã ããå
	1687	ã«æ¸ãã§å²è¾¼ã¿è¨±å¯ã«ãªãå¿é
	1688	ã¯ãªãã
	1689	*/
	1690	rfi /* å²è¾¼ã¿å
	1691	ã¸å¾©å¸° */
	1692
	1693
	1694
	1695
	1696	/*
	1697	* ã¿ã¹ã¯èµ·åå¦ç
	1698	* ããã£ã¹ãããã£ããå¼ã³åºãããã®ã§ãr10ã«ã¯runtskãå
	1699	¥ã£ã¦ãã
	1700	* ãã¹ã¿ãã¯ãã¤ã³ã¿ãè¨å®æ¸ã¿
	1701	*/
	1702
	1703	.globl activate_r
	1704	activate_r:
	1705	/* r10 = runtsk (ãã£ã¹ãããã£ã§è¨å®) */
	1706	lwz r4, TCB_tinib(r10) /* r4 = runtsk->tinib */
	1707
	1708	/* ã¿ã¹ã¯èµ·åçªå°ã®è¨å® */
	1709	lwz r5, TINIB_task(r4)
	1710	mtctr r5 /* CTR = runtsk->tinib->task */
	1711
	1712	/* ã¿ã¹ã¯ã¸ã®å¼æ°ï¼æ¡å¼µæ
	1713	å ±ï¼ */
	1714	lwz r3, TINIB_exinf(r4) /* r3 = runtsk->tinib->TINIB_exinf */
	1715
	1716	/*
	1717	* LRã¬ã¸ã¹ã¿ã«ext_tskãè¨å®ãããã¨ã«ãããext_tskã
	1718	* å¼ã°ãªãã§ã¿ã¹ã¯ã®é¢æ°ãæããå ´åãext_tskã«åå²ããã
	1719	*/
	1720	LI32(r6, ext_tsk)
	1721	mtspr LR, r6 /* ã¿ã¹ã¯ããã®æ»ãçªå°ãè¨å® */
	1722
	1723	mfmsr r8
	1724	ori r9, r8, MSR_EE
	1725	mtmsr r9 /* å²è¾¼ã¿è¨±å¯ */
	1726
	1727	bctr /* Cè¨èªã«ã¼ãã³å¼ã³åºã */
	1728
	1729
	1730	/*
	1731	* å¾®å°æéå¾
	1732	ã¡
	1733	*ããå¼æ°r3ï¼å¾
	1734	ã¡æéãnsecåä½ã§æå®ãã
	1735	*/
	1736	.globl sil_dly_nse
	1737	sil_dly_nse:
	1738	LI32(r4, SIL_DLY_TIM1)
	1739	sub. r3, r3, r4 /* r3 ããSIL_DLY_TIM1ãå¼ã */
	1740	blelr /* çµæã0ä»¥ä¸ãªããªã¿ã¼ã³ */
	1741
	1742	LI32(r5, SIL_DLY_TIM2)
	1743	sil_dly_nse_1:
	1744	sub. r3, r3, r5 /* r3 ããSIL_DLY_TIM2ãå¼ã */
	1745	bgt sil_dly_nse_1 /* çµæã 0 ããå¤§ãããã°ã«ã¼ã */
	1746	blr
	1747
	1748	/* end of file */

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