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[/] [openrisc/] [trunk/] [bootloaders/] [orpmon/] [reset.S] - Blame information for rev 666

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#include "spr-defs.h"
#include "board.h"
 
#define TRAP_ON_ERROR 0
#define LOOP_ON_ERROR 0
#define EXIT_NOP_ON_ERROR 1
#define PRINT_AND_RESET_ON_ERROR 1
 
        .extern int_main
        .extern int_error
        .extern _bstart
        .extern _bend
 
        .section .stack, "aw", @nobits
.space  STACK_SIZE
_stack:
 
 
        .section .vectors, "ax"
 
        .org 0x100
_reset:
        l.movhi r0, 0
        /* Clear status register, set supervisor mode */
        l.ori r1, r0, SPR_SR_SM
        l.mtspr r0, r1, SPR_SR
        /* Clear timer  */
        l.mtspr r0, r0, SPR_TTMR
        /* Jump to start routine */
        l.movhi r3,hi(_start)
        l.ori   r3,r3,lo(_start)
        l.jr    r3
        l.nop
 
        .org (0x200 - 0x100 + _reset)
 
_buserr:
.if TRAP_ON_ERROR
        /* Just trap */
        l.trap 0
.endif
.if EXIT_NOP_ON_ERROR
        l.nop 0x1
.endif
.if LOOP_ON_ERROR
        l.j 0
        l.nop
.endif
.if PRINT_AND_RESET_ON_ERROR
        l.mfspr r4, r0, SPR_EPCR_BASE
        l.j     _int_error /* This will reset */
        l.ori   r3, r0, 0x2
.endif
        .org (0x500 - 0x100 + _reset)
 
_tickint:
#define TIMER_RELOAD_VALUE (SPR_TTMR_IE | SPR_TTMR_RT | ((IN_CLK/TICKS_PER_SEC) & SPR_TTMR_PERIOD))
        /* Simply load timer_ticks variable and increment */
        .extern _timer_ticks
        l.addi  r1, r1, -136 /* 128 + what we need (8),avoid area used by gcc*/
        l.sw    0(r1), r25
        l.sw    4(r1), r26
        l.movhi r25, hi(timestamp)
        l.ori   r25, r25, lo(timestamp)
        l.lwz   r26, 0(r25)                     /* Load variable addr.*/
        l.addi  r26, r26, 1                     /* Increment variable */
        l.sw    0(r25), r26                     /* Store variable */
        l.movhi r25, hi(TIMER_RELOAD_VALUE)     /* Load timer value */
        l.ori   r25, r25, lo(TIMER_RELOAD_VALUE)
        l.mtspr r0, r25, SPR_TTMR               /* Reset timer */
        l.lwz   r25, 0(r1)
        l.lwz   r26, 4(r1)
        l.addi  r1, r1, 136
        l.rfe
 
        .org (0x600 - 0x100 + _reset)
 
_alignerr:
.if TRAP_ON_ERROR
        /* Just trap */
        l.trap 0
.endif
.if EXIT_NOP_ON_ERROR
        l.nop 0x1
.endif
.if LOOP_ON_ERROR
        l.j 0
        l.nop
.endif
.if PRINT_AND_RESET_ON_ERROR
        l.mfspr r4, r0, SPR_EPCR_BASE
        l.j _int_error /* This will reset */
        l.ori r3, r0, 0x6
.endif
 
        .org (0x700 - 0x100 + _reset)
 
_illinsn:
.if TRAP_ON_ERROR
        /* Just trap */
        l.trap 0
.endif
.if EXIT_NOP_ON_ERROR
        l.nop 0x1
.endif
.if LOOP_ON_ERROR
        l.j 0
        l.nop
.endif
.if PRINT_AND_RESET_ON_ERROR
        l.mfspr r4, r0, SPR_EPCR_BASE
        l.j _int_error /* This will reset */
        l.ori r3, r0, 0x7
.endif
        .org (0x800 - 0x100 + _reset)
 
_userint:
        l.addi  r1,r1,-256  /*(128 + 128) */
        l.sw    0x0(r1),r2
        l.addi  r2, r1, 256
        l.sw    0x4(r1), r3
        l.movhi r3,hi(_int_wrapper)
        l.ori   r3,r3,lo(_int_wrapper)
        l.jr    r3
        l.nop
 
        .section .text
_start:
 
        /* Instruction cache enable */
        /* Check if IC present and skip enabling otherwise */
        l.mfspr r24,r0,SPR_UPR
        l.andi  r26,r24,SPR_UPR_ICP
        l.sfeq  r26,r0
        l.bf    .L8
        l.nop
 
        /* Disable IC */
        l.mfspr r6,r0,SPR_SR
        l.addi  r5,r0,-1
        l.xori  r5,r5,SPR_SR_ICE
        l.and   r5,r6,r5
        l.mtspr r0,r5,SPR_SR
 
        /* Establish cache block size
        If BS=0, 16;
        If BS=1, 32;
        r14 contain block size
        */
        l.mfspr r24,r0,SPR_ICCFGR
        l.andi  r26,r24,SPR_ICCFGR_CBS
        l.srli  r28,r26,7
        l.ori   r30,r0,16
        l.sll   r14,r30,r28
 
        /* Establish number of cache sets
        r16 contains number of cache sets
        r28 contains log(# of cache sets)
        */
        l.andi  r26,r24,SPR_ICCFGR_NCS
        l.srli  r28,r26,3
        l.ori   r30,r0,1
        l.sll   r16,r30,r28
 
        /* Invalidate IC */
        l.addi  r6,r0,0
        l.sll   r5,r14,r28
 
.L7:
        l.mtspr r0,r6,SPR_ICBIR
        l.sfne  r6,r5
        l.bf    .L7
        l.add   r6,r6,r14
 
        /* Enable IC */
        l.mfspr r6,r0,SPR_SR
        l.ori   r6,r6,SPR_SR_ICE
        l.mtspr r0,r6,SPR_SR
        l.nop
        l.nop
        l.nop
        l.nop
        l.nop
        l.nop
        l.nop
        l.nop
 
.L8:
        /* Data cache enable */
        /* Check if DC present and skip enabling otherwise */
        l.mfspr r24,r0,SPR_UPR
        l.andi  r26,r24,SPR_UPR_DCP
        l.sfeq  r26,r0
        l.bf    .L10
        l.nop
        /* Disable DC */
        l.mfspr r6,r0,SPR_SR
        l.addi  r5,r0,-1
        l.xori  r5,r5,SPR_SR_DCE
        l.and   r5,r6,r5
        l.mtspr r0,r5,SPR_SR
        /* Establish cache block size
           If BS=0, 16;
           If BS=1, 32;
           r14 contain block size
        */
        l.mfspr r24,r0,SPR_DCCFGR
        l.andi  r26,r24,SPR_DCCFGR_CBS
        l.srli  r28,r26,7
        l.ori   r30,r0,16
        l.sll   r14,r30,r28
        /* Establish number of cache sets
           r16 contains number of cache sets
           r28 contains log(# of cache sets)
        */
        l.andi  r26,r24,SPR_DCCFGR_NCS
        l.srli  r28,r26,3
        l.ori   r30,r0,1
        l.sll   r16,r30,r28
        /* Invalidate DC */
        l.addi  r6,r0,0
        l.sll   r5,r14,r28
.L9:
        l.mtspr r0,r6,SPR_DCBIR
        l.sfne  r6,r5
        l.bf    .L9
        l.add   r6,r6,r14
        /* Enable DC */
        l.mfspr r6,r0,SPR_SR
        l.ori   r6,r6,SPR_SR_DCE
        l.mtspr r0,r6,SPR_SR
 
.L10:
        /* Set up stack */
        l.movhi r1,hi(_stack-4)
        l.ori   r1,r1,lo(_stack-4)
        l.addi  r2,r0,-3
        l.and   r1,r1,r2
        l.or    r2,r1,r1
 
        /* Clear BSS */
        l.movhi r3, hi(_bstart)
        l.ori   r3, r3, lo(_bstart)
        l.movhi r4, hi(_bend)
        l.ori   r4, r4, lo(_bend)
.L11:
        l.sw    0(r3),r0
        l.sfgtu r3, r4
        l.bnf   .L11
        l.addi  r3, r3, 4
 
 
        l.movhi r3,hi(main)
        l.ori   r3,r3,lo(main)
        l.jr    r3
        l.nop
 
_int_wrapper:
 
        l.sw    0x8(r1), r4
        l.sw    0xc(r1), r5
        l.sw    0x10(r1), r6
        l.sw    0x14(r1), r7
        l.sw    0x18(r1), r8
        l.sw    0x1c(r1), r9
        l.sw    0x20(r1), r10
        l.sw    0x24(r1), r11
        l.sw    0x28(r1), r12
        l.sw    0x2c(r1), r13
        l.sw    0x30(r1), r14
        l.sw    0x34(r1), r15
        l.sw    0x38(r1), r16
        l.sw    0x3c(r1), r17
        l.sw    0x40(r1), r18
        l.sw    0x44(r1), r19
        l.sw    0x48(r1), r20
        l.sw    0x4c(r1), r21
        l.sw    0x50(r1), r22
        l.sw    0x54(r1), r23
        l.sw    0x58(r1), r24
        l.sw    0x5c(r1), r25
        l.sw    0x60(r1), r26
        l.sw    0x64(r1), r27
        l.sw    0x68(r1), r28
        l.sw    0x6c(r1), r29
        l.sw    0x70(r1), r30
        l.sw    0x74(r1), r31
 
        l.movhi r3,hi(int_main)
        l.ori   r3,r3,lo(int_main)
        l.jalr  r3
        l.nop
 
        l.lwz   r3,0x4(r1)
        l.lwz   r4,0x8(r1)
        l.lwz   r5,0xc(r1)
        l.lwz   r6,0x10(r1)
        l.lwz   r7,0x14(r1)
        l.lwz   r8,0x18(r1)
        l.lwz   r9,0x1c(r1)
        l.lwz   r10,0x20(r1)
        l.lwz   r11,0x24(r1)
        l.lwz   r12,0x28(r1)
        l.lwz   r13,0x2c(r1)
        l.lwz   r14,0x30(r1)
        l.lwz   r15,0x34(r1)
        l.lwz   r16,0x38(r1)
        l.lwz   r17,0x3c(r1)
        l.lwz   r18,0x40(r1)
        l.lwz   r19,0x44(r1)
        l.lwz   r20,0x48(r1)
        l.lwz   r21,0x4c(r1)
        l.lwz   r22,0x50(r1)
        l.lwz   r23,0x54(r1)
        l.lwz   r24,0x58(r1)
        l.lwz   r25,0x5c(r1)
        l.lwz   r26,0x60(r1)
        l.lwz   r27,0x64(r1)
        l.lwz   r28,0x68(r1)
        l.lwz   r29,0x6c(r1)
        l.lwz   r30,0x70(r1)
        l.lwz   r31,0x74(r1)
 
        l.lwz   r2, 0x0(r1)
        l.addi  r1,r1,256
        l.rfe
        l.nop
 
 
        /* Jump to error function. Clobber r2 */
_int_error:
        l.movhi r2,hi(int_error)
        l.ori   r2,r2,lo(int_error)
        l.jr  r2
        l.nop

Line No.	Rev	Author	Line
1	246	julius	`#include "spr-defs.h"`
2	2	marcus.erl	`#include "board.h"`
3
4	419	julius	`#define TRAP_ON_ERROR 0`
5			`#define LOOP_ON_ERROR 0`
6			`#define EXIT_NOP_ON_ERROR 1`
7			`#define PRINT_AND_RESET_ON_ERROR 1`
8
9	375	julius	`.extern int_main`
10	406	julius	`.extern int_error`
11	463	julius	`.extern _bstart`
12			`.extern _bend`
13	2	marcus.erl
14			`.section .stack, "aw", @nobits`
15			`.space STACK_SIZE`
16			`_stack:`
17
18
19			`.section .vectors, "ax"`
20
21	467	julius	`.org 0x100`
22	2	marcus.erl	`_reset:`
23	246	julius	`l.movhi r0, 0`
24			`/* Clear status register, set supervisor mode */`
25			`l.ori r1, r0, SPR_SR_SM`
26			`l.mtspr r0, r1, SPR_SR`
27			`/* Clear timer */`
28			`l.mtspr r0, r0, SPR_TTMR`
29			`/* Jump to start routine */`
30	2	marcus.erl	`l.movhi r3,hi(_start)`
31			`l.ori r3,r3,lo(_start)`
32			`l.jr r3`
33			`l.nop`
34
35	140	julius	`.org (0x200 - 0x100 + _reset)`
36	463	julius
37	140	julius	`_buserr:`
38	419	julius	`.if TRAP_ON_ERROR`
39	246	julius	`/* Just trap */`
40	140	julius	`l.trap 0`
41	246	julius	`.endif`
42	419	julius	`.if EXIT_NOP_ON_ERROR`
43	246	julius	`l.nop 0x1`
44	419	julius	`.endif`
45			`.if LOOP_ON_ERROR`
46	140	julius	`l.j 0`
47			`l.nop`
48	406	julius	`.endif`
49	419	julius	`.if PRINT_AND_RESET_ON_ERROR`
50			`l.mfspr r4, r0, SPR_EPCR_BASE`
51			`l.j _int_error /* This will reset */`
52			`l.ori r3, r0, 0x2`
53			`.endif`
54	2	marcus.erl	`.org (0x500 - 0x100 + _reset)`
55	463	julius
56	355	julius	`_tickint:`
57			`#define TIMER_RELOAD_VALUE (SPR_TTMR_IE \| SPR_TTMR_RT \| ((IN_CLK/TICKS_PER_SEC) & SPR_TTMR_PERIOD))`
58			`/* Simply load timer_ticks variable and increment */`
59			`.extern _timer_ticks`
60	419	julius	`l.addi r1, r1, -136 /* 128 + what we need (8),avoid area used by gcc*/`
61	355	julius	`l.sw 0(r1), r25`
62			`l.sw 4(r1), r26`
63	375	julius	`l.movhi r25, hi(timestamp)`
64			`l.ori r25, r25, lo(timestamp)`
65	355	julius	`l.lwz r26, 0(r25) /* Load variable addr.*/`
66			`l.addi r26, r26, 1 /* Increment variable */`
67			`l.sw 0(r25), r26 /* Store variable */`
68			`l.movhi r25, hi(TIMER_RELOAD_VALUE) /* Load timer value */`
69			`l.ori r25, r25, lo(TIMER_RELOAD_VALUE)`
70			`l.mtspr r0, r25, SPR_TTMR /* Reset timer */`
71			`l.lwz r25, 0(r1)`
72			`l.lwz r26, 4(r1)`
73	419	julius	`l.addi r1, r1, 136`
74	355	julius	`l.rfe`
75	375	julius
76	2	marcus.erl	`.org (0x600 - 0x100 + _reset)`
77	463	julius
78	140	julius	`_alignerr:`
79	419	julius	`.if TRAP_ON_ERROR`
80			`/* Just trap */`
81	140	julius	`l.trap 0`
82	246	julius	`.endif`
83	419	julius	`.if EXIT_NOP_ON_ERROR`
84	246	julius	`l.nop 0x1`
85	419	julius	`.endif`
86			`.if LOOP_ON_ERROR`
87	140	julius	`l.j 0`
88			`l.nop`
89	406	julius	`.endif`
90	419	julius	`.if PRINT_AND_RESET_ON_ERROR`
91			`l.mfspr r4, r0, SPR_EPCR_BASE`
92			`l.j _int_error /* This will reset */`
93	406	julius	`l.ori r3, r0, 0x6`
94	419	julius	`.endif`
95	140	julius
96			`.org (0x700 - 0x100 + _reset)`
97	463	julius
98	246	julius	`_illinsn:`
99	419	julius	`.if TRAP_ON_ERROR`
100			`/* Just trap */`
101	140	julius	`l.trap 0`
102	246	julius	`.endif`
103	419	julius	`.if EXIT_NOP_ON_ERROR`
104	246	julius	`l.nop 0x1`
105	419	julius	`.endif`
106			`.if LOOP_ON_ERROR`
107	140	julius	`l.j 0`
108			`l.nop`
109	406	julius	`.endif`
110	419	julius	`.if PRINT_AND_RESET_ON_ERROR`
111			`l.mfspr r4, r0, SPR_EPCR_BASE`
112			`l.j _int_error /* This will reset */`
113	406	julius	`l.ori r3, r0, 0x7`
114	419	julius	`.endif`
115	2	marcus.erl	`.org (0x800 - 0x100 + _reset)`
116	463	julius
117	140	julius	`_userint:`
118	419	julius	`l.addi r1,r1,-256 /(128 + 128) /`
119	246	julius	`l.sw 0x0(r1),r2`
120	419	julius	`l.addi r2, r1, 256`
121	246	julius	`l.sw 0x4(r1), r3`
122			`l.movhi r3,hi(_int_wrapper)`
123			`l.ori r3,r3,lo(_int_wrapper)`
124			`l.jr r3`
125	2	marcus.erl	`l.nop`
126
127			`.section .text`
128			`_start:`
129
130	246	julius	`/* Instruction cache enable */`
131			`/* Check if IC present and skip enabling otherwise */`
132			`l.mfspr r24,r0,SPR_UPR`
133			`l.andi r26,r24,SPR_UPR_ICP`
134			`l.sfeq r26,r0`
135			`l.bf .L8`
136			`l.nop`
137
138			`/* Disable IC */`
139			`l.mfspr r6,r0,SPR_SR`
140			`l.addi r5,r0,-1`
141			`l.xori r5,r5,SPR_SR_ICE`
142			`l.and r5,r6,r5`
143			`l.mtspr r0,r5,SPR_SR`
144
145			`/* Establish cache block size`
146			`If BS=0, 16;`
147			`If BS=1, 32;`
148			`r14 contain block size`
149			`*/`
150			`l.mfspr r24,r0,SPR_ICCFGR`
151			`l.andi r26,r24,SPR_ICCFGR_CBS`
152			`l.srli r28,r26,7`
153			`l.ori r30,r0,16`
154			`l.sll r14,r30,r28`
155
156			`/* Establish number of cache sets`
157			`r16 contains number of cache sets`
158			`r28 contains log(# of cache sets)`
159			`*/`
160			`l.andi r26,r24,SPR_ICCFGR_NCS`
161			`l.srli r28,r26,3`
162			`l.ori r30,r0,1`
163			`l.sll r16,r30,r28`
164
165			`/* Invalidate IC */`
166			`l.addi r6,r0,0`
167			`l.sll r5,r14,r28`
168
169			`.L7:`
170			`l.mtspr r0,r6,SPR_ICBIR`
171			`l.sfne r6,r5`
172			`l.bf .L7`
173			`l.add r6,r6,r14`
174
175			`/* Enable IC */`
176			`l.mfspr r6,r0,SPR_SR`
177			`l.ori r6,r6,SPR_SR_ICE`
178			`l.mtspr r0,r6,SPR_SR`
179			`l.nop`
180			`l.nop`
181			`l.nop`
182			`l.nop`
183			`l.nop`
184			`l.nop`
185			`l.nop`
186			`l.nop`
187
188			`.L8:`
189			`/* Data cache enable */`
190			`/* Check if DC present and skip enabling otherwise */`
191			`l.mfspr r24,r0,SPR_UPR`
192			`l.andi r26,r24,SPR_UPR_DCP`
193			`l.sfeq r26,r0`
194			`l.bf .L10`
195	2	marcus.erl	`l.nop`
196	246	julius	`/* Disable DC */`
197			`l.mfspr r6,r0,SPR_SR`
198			`l.addi r5,r0,-1`
199			`l.xori r5,r5,SPR_SR_DCE`
200			`l.and r5,r6,r5`
201			`l.mtspr r0,r5,SPR_SR`
202			`/* Establish cache block size`
203			`If BS=0, 16;`
204			`If BS=1, 32;`
205			`r14 contain block size`
206			`*/`
207			`l.mfspr r24,r0,SPR_DCCFGR`
208			`l.andi r26,r24,SPR_DCCFGR_CBS`
209			`l.srli r28,r26,7`
210			`l.ori r30,r0,16`
211			`l.sll r14,r30,r28`
212			`/* Establish number of cache sets`
213			`r16 contains number of cache sets`
214			`r28 contains log(# of cache sets)`
215			`*/`
216			`l.andi r26,r24,SPR_DCCFGR_NCS`
217			`l.srli r28,r26,3`
218			`l.ori r30,r0,1`
219			`l.sll r16,r30,r28`
220			`/* Invalidate DC */`
221			`l.addi r6,r0,0`
222			`l.sll r5,r14,r28`
223			`.L9:`
224			`l.mtspr r0,r6,SPR_DCBIR`
225			`l.sfne r6,r5`
226			`l.bf .L9`
227			`l.add r6,r6,r14`
228			`/* Enable DC */`
229			`l.mfspr r6,r0,SPR_SR`
230			`l.ori r6,r6,SPR_SR_DCE`
231			`l.mtspr r0,r6,SPR_SR`
232	2	marcus.erl
233	246	julius	`.L10:`
234			`/* Set up stack */`
235	2	marcus.erl	`l.movhi r1,hi(_stack-4)`
236			`l.ori r1,r1,lo(_stack-4)`
237			`l.addi r2,r0,-3`
238			`l.and r1,r1,r2`
239	467	julius	`l.or r2,r1,r1`
240	463	julius
241			`/* Clear BSS */`
242			`l.movhi r3, hi(_bstart)`
243			`l.ori r3, r3, lo(_bstart)`
244			`l.movhi r4, hi(_bend)`
245			`l.ori r4, r4, lo(_bend)`
246			`.L11:`
247			`l.sw 0(r3),r0`
248			`l.sfgtu r3, r4`
249			`l.bnf .L11`
250			`l.addi r3, r3, 4`
251
252	140	julius
253	375	julius	`l.movhi r3,hi(main)`
254			`l.ori r3,r3,lo(main)`
255	246	julius	`l.jr r3`
256			`l.nop`
257	140	julius
258	2	marcus.erl	`_int_wrapper:`
259
260	246	julius	`l.sw 0x8(r1), r4`
261			`l.sw 0xc(r1), r5`
262			`l.sw 0x10(r1), r6`
263			`l.sw 0x14(r1), r7`
264			`l.sw 0x18(r1), r8`
265			`l.sw 0x1c(r1), r9`
266			`l.sw 0x20(r1), r10`
267			`l.sw 0x24(r1), r11`
268			`l.sw 0x28(r1), r12`
269			`l.sw 0x2c(r1), r13`
270			`l.sw 0x30(r1), r14`
271			`l.sw 0x34(r1), r15`
272			`l.sw 0x38(r1), r16`
273			`l.sw 0x3c(r1), r17`
274			`l.sw 0x40(r1), r18`
275			`l.sw 0x44(r1), r19`
276			`l.sw 0x48(r1), r20`
277			`l.sw 0x4c(r1), r21`
278			`l.sw 0x50(r1), r22`
279			`l.sw 0x54(r1), r23`
280			`l.sw 0x58(r1), r24`
281			`l.sw 0x5c(r1), r25`
282			`l.sw 0x60(r1), r26`
283			`l.sw 0x64(r1), r27`
284			`l.sw 0x68(r1), r28`
285			`l.sw 0x6c(r1), r29`
286			`l.sw 0x70(r1), r30`
287			`l.sw 0x74(r1), r31`
288
289	375	julius	`l.movhi r3,hi(int_main)`
290			`l.ori r3,r3,lo(int_main)`
291	2	marcus.erl	`l.jalr r3`
292			`l.nop`
293
294	246	julius	`l.lwz r3,0x4(r1)`
295	2	marcus.erl	`l.lwz r4,0x8(r1)`
296			`l.lwz r5,0xc(r1)`
297			`l.lwz r6,0x10(r1)`
298			`l.lwz r7,0x14(r1)`
299			`l.lwz r8,0x18(r1)`
300			`l.lwz r9,0x1c(r1)`
301			`l.lwz r10,0x20(r1)`
302			`l.lwz r11,0x24(r1)`
303			`l.lwz r12,0x28(r1)`
304			`l.lwz r13,0x2c(r1)`
305			`l.lwz r14,0x30(r1)`
306			`l.lwz r15,0x34(r1)`
307			`l.lwz r16,0x38(r1)`
308			`l.lwz r17,0x3c(r1)`
309			`l.lwz r18,0x40(r1)`
310			`l.lwz r19,0x44(r1)`
311			`l.lwz r20,0x48(r1)`
312			`l.lwz r21,0x4c(r1)`
313			`l.lwz r22,0x50(r1)`
314			`l.lwz r23,0x54(r1)`
315			`l.lwz r24,0x58(r1)`
316			`l.lwz r25,0x5c(r1)`
317			`l.lwz r26,0x60(r1)`
318			`l.lwz r27,0x64(r1)`
319			`l.lwz r28,0x68(r1)`
320			`l.lwz r29,0x6c(r1)`
321			`l.lwz r30,0x70(r1)`
322	246	julius	`l.lwz r31,0x74(r1)`
323	2	marcus.erl
324	246	julius	`l.lwz r2, 0x0(r1)`
325	419	julius	`l.addi r1,r1,256`
326	2	marcus.erl	`l.rfe`
327			`l.nop`
328	246	julius
329	2	marcus.erl
330	406	julius	`/* Jump to error function. Clobber r2 */`
331			`_int_error:`
332			`l.movhi r2,hi(int_error)`
333			`l.ori r2,r2,lo(int_error)`
334			`l.jr r2`
335			`l.nop`

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