[ceph.git] / ceph / src / boost / libs / context / src / asm / ontop_ppc32_sysv_macho_gas.S

/*
            Copyright Oliver Kowalke 2009.
   Distributed under the Boost Software License, Version 1.0.
      (See accompanying file LICENSE_1_0.txt or copy at
          http://www.boost.org/LICENSE_1_0.txt)
*/

/******************************************************
 *                                                     *
 *  -------------------------------------------------  *
 *  |  0  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |  *
 *  -------------------------------------------------  *
 *  |  0  |  4  |  8  |  12 |  16 |  20 |  24 |  28 |  *
 *  -------------------------------------------------  *
 *  |    F14    |    F15    |    F16    |    F17    |  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  8  |  9  |  10 |  11 |  12 |  13 |  14 |  15 |  *
 *  -------------------------------------------------  *
 *  |  32 |  36 |  40 |  44 |  48 |  52 |  56 |  60 |  *
 *  -------------------------------------------------  *
 *  |    F18    |    F19    |    F20    |    F21    |  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  16 |  17 |  18 |  19 |  20 |  21 |  22 |  23 |  *
 *  -------------------------------------------------  *
 *  |  64 |  68 |  72 |  76 |  80 |  84 |  88 |  92 |  *
 *  -------------------------------------------------  *
 *  |    F22    |    F23    |    F24    |    F25    |  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  24 |  25 |  26 |  27 |  28 |  29 |  30 |  31 |  *
 *  -------------------------------------------------  *
 *  |  96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 |  *
 *  -------------------------------------------------  *
 *  |    F26    |    F27    |    F28    |    F29    |  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  32 |  33 |  34 |  35 |  36 |  37 |  38 |  39 |  *
 *  -------------------------------------------------  *
 *  | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 |  *
 *  -------------------------------------------------  *
 *  |    F30    |    F31    |   fpscr   | R13 | R14 |  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  40 |  41 |  42 |  43 |  44 |  45 |  46 |  47 |  *
 *  -------------------------------------------------  *
 *  | 160 | 164 | 168 | 172 | 176 | 180 | 184 | 188 |  *
 *  -------------------------------------------------  *
 *  | R15 | R16 | R17 | R18 | R19 | R20 | R21 | R22 |  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  48 |  49 |  50 |  51 |  52 |  53 |  54 |  55 |  *
 *  -------------------------------------------------  *
 *  | 192 | 196 | 200 | 204 | 208 | 212 | 216 | 220 |  *
 *  -------------------------------------------------  *
 *  | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  56 |  57 |  58 |  59 |  60 |  61 |  62 |  63 |  *
 *  -------------------------------------------------  *
 *  | 224 | 228 | 232 | 236 | 240 | 244 | 248 | 252 |  *
 *  -------------------------------------------------  *
 *  | R31 |hiddn|  CR |  LR |  PC |bchai|linkr| FCTX|  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  64 |                                         |  *
 *  -------------------------------------------------  *
 *  | 256 |                                         |  *
 *  -------------------------------------------------  *
 *  | DATA|                                         |  * 
 *  -------------------------------------------------  *
 *                                                     *
 *******************************************************/

.text
.globl _ontop_fcontext
.align 2
_ontop_fcontext:
    # reserve space on stack
    subi  r1, r1, 244

    stfd  f14, 0(r1)  # save F14
    stfd  f15, 8(r1)  # save F15
    stfd  f16, 16(r1)  # save F16
    stfd  f17, 24(r1)  # save F17
    stfd  f18, 32(r1)  # save F18
    stfd  f19, 40(r1)  # save F19
    stfd  f20, 48(r1)  # save F20
    stfd  f21, 56(r1)  # save F21
    stfd  f22, 64(r1)  # save F22
    stfd  f23, 72(r1)  # save F23
    stfd  f24, 80(r1)  # save F24
    stfd  f25, 88(r1)  # save F25
    stfd  f26, 96(r1)  # save F26
    stfd  f27, 104(r1)  # save F27
    stfd  f28, 112(r1)  # save F28
    stfd  f29, 120(r1)  # save F29
    stfd  f30, 128(r1)  # save F30
    stfd  f31, 136(r1)  # save F31
    mffs  f0  # load FPSCR
    stfd  f0, 144(r1)  # save FPSCR

    stw  r13, 152(r1)  # save R13
    stw  r14, 156(r1)  # save R14
    stw  r15, 160(r1)  # save R15
    stw  r16, 164(r1)  # save R16
    stw  r17, 168(r1)  # save R17
    stw  r18, 172(r1)  # save R18
    stw  r19, 176(r1)  # save R19
    stw  r20, 180(r1)  # save R20
    stw  r21, 184(r1)  # save R21
    stw  r22, 188(r1)  # save R22
    stw  r23, 192(r1)  # save R23
    stw  r24, 196(r1)  # save R24
    stw  r25, 200(r1)  # save R25
    stw  r26, 204(r1)  # save R26
    stw  r27, 208(r1)  # save R27
    stw  r28, 212(r1)  # save R28
    stw  r29, 216(r1)  # save R29
    stw  r30, 220(r1)  # save R30
    stw  r31, 224(r1)  # save R31
    stw  r3,  228(r1)  # save hidden

    # save CR
    mfcr  r0
    stw   r0, 232(r1)
    # save LR
    mflr  r0
    stw   r0, 236(r1)
    # save LR as PC
    stw   r0, 240(r1)

    # store RSP (pointing to context-data) in R7
    mr  r7, r1

    # restore RSP (pointing to context-data) from R4
    mr  r1, r4

    lfd  f14, 0(r1)  # restore F14
    lfd  f15, 8(r1)  # restore F15
    lfd  f16, 16(r1)  # restore F16
    lfd  f17, 24(r1)  # restore F17
    lfd  f18, 32(r1)  # restore F18
    lfd  f19, 40(r1)  # restore F19
    lfd  f20, 48(r1)  # restore F20
    lfd  f21, 56(r1)  # restore F21
    lfd  f22, 64(r1)  # restore F22
    lfd  f23, 72(r1)  # restore F23
    lfd  f24, 80(r1)  # restore F24
    lfd  f25, 88(r1)  # restore F25
    lfd  f26, 96(r1)  # restore F26
    lfd  f27, 104(r1)  # restore F27
    lfd  f28, 112(r1)  # restore F28
    lfd  f29, 120(r1)  # restore F29
    lfd  f30, 128(r1)  # restore F30
    lfd  f31, 136(r1)  # restore F31
    lfd  f0,  144(r1)  # load FPSCR
    mtfsf  0xff, f0  # restore FPSCR

    lwz  r13, 152(r1)  # restore R13
    lwz  r14, 156(r1)  # restore R14
    lwz  r15, 160(r1)  # restore R15
    lwz  r16, 164(r1)  # restore R16
    lwz  r17, 168(r1)  # restore R17
    lwz  r18, 172(r1)  # restore R18
    lwz  r19, 176(r1)  # restore R19
    lwz  r20, 180(r1)  # restore R20
    lwz  r21, 184(r1)  # restore R21
    lwz  r22, 188(r1)  # restore R22
    lwz  r23, 192(r1)  # restore R23
    lwz  r24, 196(r1)  # restore R24
    lwz  r25, 200(r1)  # restore R25
    lwz  r26, 204(r1)  # restore R26
    lwz  r27, 208(r1)  # restore R27
    lwz  r28, 212(r1)  # restore R28
    lwz  r29, 216(r1)  # restore R29
    lwz  r30, 220(r1)  # restore R30
    lwz  r31, 224(r1)  # restore R31
    lwz  r4,  228(r1)  # restore hidden

    # restore CR
    lwz   r0, 232(r1)
    mtcr  r0
    # restore LR
    lwz   r0, 236(r1)
    mtlr  r0
    # ignore PC

    # adjust stack
    addi  r1, r1, 244

    # return transfer_t 
    stw  r7, 0(r4)
    stw  r5, 4(r4)

    # restore CTR
    mtctr r6

    # jump to ontop-function
    bctr
Commit	Line	Data
7c673cae FG	1	/*
	2	Copyright Oliver Kowalke 2009.
	3	Distributed under the Boost Software License, Version 1.0.
	4	(See accompanying file LICENSE_1_0.txt or copy at
	5	http://www.boost.org/LICENSE_1_0.txt)
	6	*/
	7
b32b8144	8	/******************************************************
7c673cae FG	9	* *
	10	* ------------------------------------------------- *
	11	* \| 0 \| 1 \| 2 \| 3 \| 4 \| 5 \| 6 \| 7 \| *
	12	* ------------------------------------------------- *
	13	* \| 0 \| 4 \| 8 \| 12 \| 16 \| 20 \| 24 \| 28 \| *
	14	* ------------------------------------------------- *
b32b8144	15	* \| F14 \| F15 \| F16 \| F17 \| *
7c673cae FG	16	* ------------------------------------------------- *
	17	* ------------------------------------------------- *
	18	* \| 8 \| 9 \| 10 \| 11 \| 12 \| 13 \| 14 \| 15 \| *
	19	* ------------------------------------------------- *
	20	* \| 32 \| 36 \| 40 \| 44 \| 48 \| 52 \| 56 \| 60 \| *
	21	* ------------------------------------------------- *
b32b8144	22	* \| F18 \| F19 \| F20 \| F21 \| *
7c673cae FG	23	* ------------------------------------------------- *
	24	* ------------------------------------------------- *
	25	* \| 16 \| 17 \| 18 \| 19 \| 20 \| 21 \| 22 \| 23 \| *
	26	* ------------------------------------------------- *
	27	* \| 64 \| 68 \| 72 \| 76 \| 80 \| 84 \| 88 \| 92 \| *
	28	* ------------------------------------------------- *
b32b8144	29	* \| F22 \| F23 \| F24 \| F25 \| *
7c673cae FG	30	* ------------------------------------------------- *
	31	* ------------------------------------------------- *
	32	* \| 24 \| 25 \| 26 \| 27 \| 28 \| 29 \| 30 \| 31 \| *
	33	* ------------------------------------------------- *
	34	* \| 96 \| 100 \| 104 \| 108 \| 112 \| 116 \| 120 \| 124 \| *
	35	* ------------------------------------------------- *
b32b8144 FG	36	* \| F26 \| F27 \| F28 \| F29 \| *
	37	* ------------------------------------------------- *
	38	* ------------------------------------------------- *
	39	* \| 32 \| 33 \| 34 \| 35 \| 36 \| 37 \| 38 \| 39 \| *
	40	* ------------------------------------------------- *
	41	* \| 128 \| 132 \| 136 \| 140 \| 144 \| 148 \| 152 \| 156 \| *
	42	* ------------------------------------------------- *
	43	* \| F30 \| F31 \| fpscr \| R13 \| R14 \| *
	44	* ------------------------------------------------- *
	45	* ------------------------------------------------- *
	46	* \| 40 \| 41 \| 42 \| 43 \| 44 \| 45 \| 46 \| 47 \| *
	47	* ------------------------------------------------- *
	48	* \| 160 \| 164 \| 168 \| 172 \| 176 \| 180 \| 184 \| 188 \| *
	49	* ------------------------------------------------- *
	50	* \| R15 \| R16 \| R17 \| R18 \| R19 \| R20 \| R21 \| R22 \| *
	51	* ------------------------------------------------- *
	52	* ------------------------------------------------- *
	53	* \| 48 \| 49 \| 50 \| 51 \| 52 \| 53 \| 54 \| 55 \| *
	54	* ------------------------------------------------- *
	55	* \| 192 \| 196 \| 200 \| 204 \| 208 \| 212 \| 216 \| 220 \| *
	56	* ------------------------------------------------- *
	57	* \| R23 \| R24 \| R25 \| R26 \| R27 \| R28 \| R29 \| R30 \| *
	58	* ------------------------------------------------- *
	59	* ------------------------------------------------- *
	60	* \| 56 \| 57 \| 58 \| 59 \| 60 \| 61 \| 62 \| 63 \| *
	61	* ------------------------------------------------- *
	62	* \| 224 \| 228 \| 232 \| 236 \| 240 \| 244 \| 248 \| 252 \| *
	63	* ------------------------------------------------- *
	64	* \| R31 \|hiddn\| CR \| LR \| PC \|bchai\|linkr\| FCTX\| *
	65	* ------------------------------------------------- *
	66	* ------------------------------------------------- *
	67	* \| 64 \| \| *
	68	* ------------------------------------------------- *
	69	* \| 256 \| \| *
	70	* ------------------------------------------------- *
	71	* \| DATA\| \| *
7c673cae FG	72	* ------------------------------------------------- *
	73	* *
	74	*******************************************************/
	75
	76	.text
	77	.globl _ontop_fcontext
	78	.align 2
	79	_ontop_fcontext:
	80	# reserve space on stack
b32b8144	81	subi r1, r1, 244
7c673cae	82
b32b8144 FG	83	stfd f14, 0(r1) # save F14
	84	stfd f15, 8(r1) # save F15
	85	stfd f16, 16(r1) # save F16
	86	stfd f17, 24(r1) # save F17
	87	stfd f18, 32(r1) # save F18
	88	stfd f19, 40(r1) # save F19
	89	stfd f20, 48(r1) # save F20
	90	stfd f21, 56(r1) # save F21
	91	stfd f22, 64(r1) # save F22
	92	stfd f23, 72(r1) # save F23
	93	stfd f24, 80(r1) # save F24
	94	stfd f25, 88(r1) # save F25
	95	stfd f26, 96(r1) # save F26
	96	stfd f27, 104(r1) # save F27
	97	stfd f28, 112(r1) # save F28
	98	stfd f29, 120(r1) # save F29
	99	stfd f30, 128(r1) # save F30
	100	stfd f31, 136(r1) # save F31
	101	mffs f0 # load FPSCR
	102	stfd f0, 144(r1) # save FPSCR
	103
	104	stw r13, 152(r1) # save R13
	105	stw r14, 156(r1) # save R14
	106	stw r15, 160(r1) # save R15
	107	stw r16, 164(r1) # save R16
	108	stw r17, 168(r1) # save R17
	109	stw r18, 172(r1) # save R18
	110	stw r19, 176(r1) # save R19
	111	stw r20, 180(r1) # save R20
	112	stw r21, 184(r1) # save R21
	113	stw r22, 188(r1) # save R22
	114	stw r23, 192(r1) # save R23
	115	stw r24, 196(r1) # save R24
	116	stw r25, 200(r1) # save R25
	117	stw r26, 204(r1) # save R26
	118	stw r27, 208(r1) # save R27
	119	stw r28, 212(r1) # save R28
	120	stw r29, 216(r1) # save R29
	121	stw r30, 220(r1) # save R30
	122	stw r31, 224(r1) # save R31
	123	stw r3, 228(r1) # save hidden
7c673cae FG	124
	125	# save CR
	126	mfcr r0
b32b8144	127	stw r0, 232(r1)
7c673cae FG	128	# save LR
7c673cae FG	129	mflr r0
b32b8144	130	stw r0, 236(r1)
7c673cae	131	# save LR as PC
b32b8144	132	stw r0, 240(r1)
7c673cae FG	133
	134	# store RSP (pointing to context-data) in R7
	135	mr r7, r1
	136
	137	# restore RSP (pointing to context-data) from R4
	138	mr r1, r4
	139
b32b8144 FG	140	lfd f14, 0(r1) # restore F14
	141	lfd f15, 8(r1) # restore F15
	142	lfd f16, 16(r1) # restore F16
	143	lfd f17, 24(r1) # restore F17
	144	lfd f18, 32(r1) # restore F18
	145	lfd f19, 40(r1) # restore F19
	146	lfd f20, 48(r1) # restore F20
	147	lfd f21, 56(r1) # restore F21
	148	lfd f22, 64(r1) # restore F22
	149	lfd f23, 72(r1) # restore F23
	150	lfd f24, 80(r1) # restore F24
	151	lfd f25, 88(r1) # restore F25
	152	lfd f26, 96(r1) # restore F26
	153	lfd f27, 104(r1) # restore F27
	154	lfd f28, 112(r1) # restore F28
	155	lfd f29, 120(r1) # restore F29
	156	lfd f30, 128(r1) # restore F30
	157	lfd f31, 136(r1) # restore F31
	158	lfd f0, 144(r1) # load FPSCR
	159	mtfsf 0xff, f0 # restore FPSCR
	160
	161	lwz r13, 152(r1) # restore R13
	162	lwz r14, 156(r1) # restore R14
	163	lwz r15, 160(r1) # restore R15
	164	lwz r16, 164(r1) # restore R16
	165	lwz r17, 168(r1) # restore R17
	166	lwz r18, 172(r1) # restore R18
	167	lwz r19, 176(r1) # restore R19
	168	lwz r20, 180(r1) # restore R20
	169	lwz r21, 184(r1) # restore R21
	170	lwz r22, 188(r1) # restore R22
	171	lwz r23, 192(r1) # restore R23
	172	lwz r24, 196(r1) # restore R24
	173	lwz r25, 200(r1) # restore R25
	174	lwz r26, 204(r1) # restore R26
	175	lwz r27, 208(r1) # restore R27
	176	lwz r28, 212(r1) # restore R28
	177	lwz r29, 216(r1) # restore R29
	178	lwz r30, 220(r1) # restore R30
	179	lwz r31, 224(r1) # restore R31
	180	lwz r4, 228(r1) # restore hidden
7c673cae FG	181
7c673cae FG	182	# restore CR
b32b8144	183	lwz r0, 232(r1)
7c673cae FG	184	mtcr r0
7c673cae FG	185	# restore LR
b32b8144	186	lwz r0, 236(r1)
7c673cae FG	187	mtlr r0
	188	# ignore PC
	189
	190	# adjust stack
b32b8144	191	addi r1, r1, 244
7c673cae FG	192
	193	# return transfer_t
	194	stw r7, 0(r4)
	195	stw r5, 4(r4)
	196
	197	# restore CTR
	198	mtctr r6
	199
	200	# jump to ontop-function
	201	bctr