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/* Within the test we'll use following global variables:
 
   r16 interrupt counter
   r17 current tick timer comparison counter
   r18 sanity counter
   r19 loop counter
   r20 temp value of SR reg
   r21 temp value of TTMR reg.
   r23 RAM_START
 
   r25-r31 used by int handler
 
   The test do the following:
   We set up the tick timer to trigger once and then we trigger interrupts incrementally
   on every cycle in the specified test program; on interrupt handler we check if data computed
   so far exactly matches precalculated values. If interrupt has returned incorreclty, we can
   detect this using assertion routine at the end.
*/
 
#include "spr_defs.h"
#include "board.h"
 
#define  RAM_START 0x00000000
 
#define MC_CSR          (0x00)
#define MC_POC          (0x04)
#define MC_BA_MASK      (0x08)
#define MC_CSC(i)       (0x10 + (i) * 8)
#define MC_TMS(i)       (0x14 + (i) * 8)
 
.section  .reset, "ax"
 
.org 0x100
 
_reset_vector:
  l.addi  r2,r0,0x0
  l.addi  r3,r0,0x0
  l.addi  r4,r0,0x0
  l.addi  r5,r0,0x0
  l.addi  r6,r0,0x0
  l.addi  r7,r0,0x0
  l.addi  r8,r0,0x0
  l.addi  r9,r0,0x0
  l.addi  r10,r0,0x0
  l.addi  r11,r0,0x0
  l.addi  r12,r0,0x0
  l.addi  r13,r0,0x0
  l.addi  r14,r0,0x0
  l.addi  r15,r0,0x0
  l.addi  r16,r0,0x0
  l.addi  r17,r0,0x0
  l.addi  r18,r0,0x0
  l.addi  r19,r0,0x0
  l.addi  r20,r0,0x0
  l.addi  r21,r0,0x0
  l.addi  r22,r0,0x0
  l.addi  r23,r0,0x0
  l.addi  r24,r0,0x0
  l.addi  r25,r0,0x0
  l.addi  r26,r0,0x0
  l.addi  r27,r0,0x0
  l.addi  r28,r0,0x0
  l.addi  r29,r0,0x0
  l.addi  r30,r0,0x0
  l.addi  r31,r0,0x0
 
  l.movhi r3,hi(start)
  l.ori   r3,r3,lo(start)
  l.jr    r3
  l.nop
start:
  l.jal   _init_mc
  l.nop
 
  /* Setup exception wrapper */
  l.movhi r3,hi(_src_beg)
  l.ori   r3,r3,lo(_src_beg)
  l.movhi r4,hi(_dst_beg)
  l.ori   r4,r4,lo(_dst_beg)
  l.movhi r5,hi(_dst_end)
  l.ori   r5,r5,lo(_dst_end)
  l.sub   r5,r5,r4
  l.sfeqi r5,0
  l.bf    2f
  l.nop
1:
  l.lwz   r6,0(r3)
  l.sw    0(r4),r6
  l.addi  r3,r3,4
  l.addi  r4,r4,4
  l.addi  r5,r5,-4
  l.sfgtsi r5,0
  l.bf          1b
  l.nop
2:
  l.movhi r2,hi(_main)
  l.ori   r2,r2,lo(_main)
  l.jr    r2
  l.nop
 
_init_mc:
 
  l.movhi r3,hi(MC_BASE_ADDR)
  l.ori   r3,r3,lo(MC_BASE_ADDR)
 
  l.addi  r4,r3,MC_CSC(0)
  l.movhi r5,hi(FLASH_BASE_ADDR)
  l.srai  r5,r5,6
  l.ori   r5,r5,0x0025
  l.sw    0(r4),r5
 
  l.addi  r4,r3,MC_TMS(0)
  l.movhi r5,hi(FLASH_TMS_VAL)
  l.ori   r5,r5,lo(FLASH_TMS_VAL)
  l.sw    0(r4),r5
 
  l.addi  r4,r3,MC_BA_MASK
  l.addi  r5,r0,MC_MASK_VAL
  l.sw    0(r4),r5
 
  l.addi  r4,r3,MC_CSR
  l.movhi r5,hi(MC_CSR_VAL)
  l.ori   r5,r5,lo(MC_CSR_VAL)
  l.sw    0(r4),r5
 
  l.addi  r4,r3,MC_TMS(1)
  l.movhi r5,hi(SDRAM_TMS_VAL)
  l.ori   r5,r5,lo(SDRAM_TMS_VAL)
  l.sw    0(r4),r5
 
  l.addi  r4,r3,MC_CSC(1)
  l.movhi r5,hi(SDRAM_BASE_ADDR)
  l.srai  r5,r5,6
  l.ori   r5,r5,0x0411
  l.sw    0(r4),r5
 
  l.jr    r9
  l.nop
 
.section .text
 
#
# Tick timer exception handler
#
 
  l.addi  r31,r3,0
# get interrupted program pc
  l.mfspr r25,r0,SPR_EPCR_BASE
 
# calculate instruction address
  l.movhi r26,hi(_ie_start)
  l.ori   r26,r26,lo(_ie_start)
  l.addi  r3,r25,0    #print insn index
  l.nop   2
  l.sub   r25,r25,r26
  l.addi  r3,r25,0    #print insn index
  l.nop   2
 
  l.addi  r3,r31,0    # restore r3
  l.sfeqi r25, 0x00
  l.bf    _i00
  l.sfeqi r25, 0x04
  l.bf    _i04
  l.sfeqi r25, 0x08
  l.bf    _i08
  l.sfeqi r25, 0x0c
  l.bf    _i0c
  l.sfeqi r25, 0x10
  l.bf    _i10
  l.sfeqi r25, 0x14
  l.bf    _i14
  l.sfeqi r25, 0x18
  l.bf    _i18
  l.sfeqi r25, 0x1c
  l.bf    _i1c
  l.sfeqi r25, 0x20
  l.bf    _i20
  l.sfeqi r25, 0x24
  l.bf    _i24
  l.sfeqi r25, 0x28
  l.bf    _i28
  l.sfeqi r25, 0x2c
  l.bf    _i2c
  l.sfeqi r25, 0x30
  l.bf    _i30
  l.sfeqi r25, 0x34
  l.bf    _i34
  l.sfeqi r25, 0x38
  l.bf    _i38
  l.nop
 
# value not defined
_die:
  l.nop   2             #print r3
 
  l.addi  r3,r0,0xeeee
  l.nop   2
  l.addi  r3,r0,1
  l.nop   1
1:
  l.j     1b
  l.nop
 
 
_main:
        l.nop
  l.addi  r3,r0,SPR_SR_SM
  l.mtspr r0,r3,SPR_SR
        l.nop
 
#
# set tick counter to initial 3 cycles
#
  l.addi r16,r0,0
  l.addi r17,r0,1
  l.addi r18,r0,0
  l.addi r19,r0,0
  l.addi r22,r0,0
 
  l.movhi r23,hi(RAM_START)
  l.ori   r23,r23,lo(RAM_START)
 
# Set r20 to hold enable tick exception
        l.mfspr r20,r0,SPR_SR
        l.ori r20,r20,SPR_SR_SM|SPR_SR_TEE|SPR_SR_F
 
# Set r21 to hold value of TTMR
        l.movhi r5,hi(SPR_TTMR_SR | SPR_TTMR_IE)
        l.add  r21,r5,r17
 
#
# MAIN LOOP
#
_main_loop:
# reinitialize memory and registers
  l.addi  r3,r0,0xaaaa
  l.addi  r9,r0,0xbbbb
  l.sw    0(r23),r3
  l.sw    4(r23),r9
  l.sw    8(r23),r3
 
# Reinitializes tick timer
  l.addi  r17,r17,1
  l.mtspr r0,r0,SPR_TTCR                # set TTCR
  l.mtspr r0,r21,SPR_TTMR               # set TTMR
  l.mtspr r0,r0,SPR_TTCR                # set TTCR
        l.addi  r21,r21,1
 
# Enable exceptions and interrupts
        l.mtspr r0,r20,SPR_SR   # set SR
 
##### TEST CODE #####
_ie_start:
  l.movhi r3,0x1234         #00
  l.sw    0(r23),r3         #04
  l.movhi r3,hi(RAM_START)  #08
  l.lwz   r3,0(r3)          #0c
  l.movhi r3,hi(RAM_START)  #10
  l.addi  r3,r3,4           #14
  l.j     1f                #18
  l.lwz   r3,0(r3)          #1c
  l.addi  r3,r3,1           #20
1:
  l.sfeqi r3,0xdead         #24
  l.jal   2f                #28
  l.addi  r3,r0,0x5678      #2c
 
_return_addr:
2:
  l.bf    _die              #30
  l.sw    8(r23),r3         #34
_ie_end:
  l.nop                     #38
##### END OF TEST CODE #####
 
# do some testing
 
  l.j     _main_loop
  l.nop
 
_i00:
  l.sfeqi r3,0xaaaa
  l.bnf   _die
  l.nop
  l.j     _resume
  l.nop
_i04:
  l.movhi  r26,0x1234
  l.sfeq   r3,r26
  l.bnf   _die
  l.nop
  l.lwz   r26,0(r23)
  l.sfeqi r26,0xaaaa
  l.bnf   _die
  l.nop
  l.j     _resume
  l.nop
_i08:
  l.movhi r26,0x1234
  l.sfeq  r3,r26
  l.bnf   _die
  l.nop
  l.lwz   r27,0(r23)
  l.sfeq  r27,r26
  l.bnf   _die
  l.nop
  l.j     _resume
  l.nop
_i0c:
  l.sfeq  r3,r23
  l.bnf   _die
  l.nop
  l.j     _resume
  l.nop
_i10:
  l.movhi r26,0x1234
  l.sfeq  r26,r3
  l.bnf   _die
  l.nop
  l.j     _resume
  l.nop
_i14:
  l.sfeq  r3,r23
  l.bnf   _die
  l.nop
  l.j     _resume
  l.nop
_i18:
  l.addi  r26,r23,4
  l.sfeq  r3,r26
  l.bnf   _die
  l.nop
  l.j     _resume
  l.nop
_i1c:
  l.j     _die
  l.nop
_i20:
  l.j     _die
  l.nop
_i24:
  l.mfspr r26,r0,SPR_ESR_BASE
  l.addi  r30,r3,0
  l.addi  r3,r26,0
  l.nop   2
  l.addi  r3,r30,0
  l.andi  r26,r26,SPR_SR_F
  l.sfeq  r26,r0
/*  l.bnf   _die */
  l.nop
  l.sfeqi  r3,0xbbbb
  l.bnf   _die
  l.nop
  l.j     _resume
  l.nop
_i28:
  l.mfspr r26,r0,SPR_ESR_BASE
  l.addi  r30,r3,0
  l.addi  r3,r26,0
  l.nop   2
  l.addi  r3,r30,0
  l.andi  r26,r26,SPR_SR_F
  l.sfeq  r26,r0
  l.bnf    _die
  l.nop
  l.sfeqi  r22,1
  l.bf     _resume
  l.addi   r22,r0,1
  l.sfeqi  r9,0xbbbb
  l.bnf   _die
  l.nop
  l.j     _resume
  l.nop
_i2c:
  l.movhi  r26,hi(_return_addr)
  l.ori    r26,r26,lo(_return_addr)
  l.sfeq   r9,r26
  l.bnf   _die
  l.nop
  l.sfeqi  r3,0xbbbb
  l.bnf   _die
  l.nop
  l.j     _resume
  l.nop
_i30:
  l.sfeqi  r3,0x5678
  l.bnf   _die
  l.nop
  l.j     _resume
  l.nop
_i34:
  l.sfeqi  r3,0x5678
  l.bnf   _die
  l.nop
  l.lwz    r26,8(r23)
  l.sfeqi  r26,0xaaaa
  l.bnf   _die
  l.nop
  l.j     _resume
  l.nop
_i38:
  l.lwz    r26,8(r23)
  l.sfeqi  r26,0x5678
  l.bnf   _die
  l.nop
#
# mark finished ok
#
  l.movhi r3,hi(0xdeaddead)
  l.ori   r3,r3,lo(0xdeaddead)
  l.nop   2
  l.addi  r3,r0,0
  l.nop   1
_ok:
  l.j     _ok
  l.nop
 
_resume:
  l.mfspr  r27,r0,SPR_ESR_BASE
  l.addi   r26,r0,SPR_SR_TEE
  l.addi   r28,r0,-1
  l.xor    r26,r26,r28
  l.and    r26,r26,r27
  l.mtspr  r0,r26,SPR_ESR_BASE
 
  l.rfe
  l.addi    r3,r3,5         # should not be executed

Line No.	Rev	Author	Line
1	576	markom	`/* Within the test we'll use following global variables:`
2
3			`r16 interrupt counter`
4			`r17 current tick timer comparison counter`
5			`r18 sanity counter`
6			`r19 loop counter`
7			`r20 temp value of SR reg`
8			`r21 temp value of TTMR reg.`
9			`r23 RAM_START`
10
11			`r25-r31 used by int handler`
12
13			`The test do the following:`
14			`We set up the tick timer to trigger once and then we trigger interrupts incrementally`
15			`on every cycle in the specified test program; on interrupt handler we check if data computed`
16			`so far exactly matches precalculated values. If interrupt has returned incorreclty, we can`
17			`detect this using assertion routine at the end.`
18			`*/`
19
20			`#include "spr_defs.h"`
21	970	simons	`#include "board.h"`
22	576	markom
23	970	simons	`#define RAM_START 0x00000000`
24
25			`#define MC_CSR (0x00)`
26			`#define MC_POC (0x04)`
27			`#define MC_BA_MASK (0x08)`
28			`#define MC_CSC(i) (0x10 + (i) * 8)`
29			`#define MC_TMS(i) (0x14 + (i) * 8)`
30
31			`.section .reset, "ax"`
32
33	576	markom	`.org 0x100`
34	970	simons
35			`_reset_vector:`
36			`l.addi r2,r0,0x0`
37			`l.addi r3,r0,0x0`
38			`l.addi r4,r0,0x0`
39			`l.addi r5,r0,0x0`
40			`l.addi r6,r0,0x0`
41			`l.addi r7,r0,0x0`
42			`l.addi r8,r0,0x0`
43			`l.addi r9,r0,0x0`
44			`l.addi r10,r0,0x0`
45			`l.addi r11,r0,0x0`
46			`l.addi r12,r0,0x0`
47			`l.addi r13,r0,0x0`
48			`l.addi r14,r0,0x0`
49			`l.addi r15,r0,0x0`
50			`l.addi r16,r0,0x0`
51			`l.addi r17,r0,0x0`
52			`l.addi r18,r0,0x0`
53			`l.addi r19,r0,0x0`
54			`l.addi r20,r0,0x0`
55			`l.addi r21,r0,0x0`
56			`l.addi r22,r0,0x0`
57			`l.addi r23,r0,0x0`
58			`l.addi r24,r0,0x0`
59			`l.addi r25,r0,0x0`
60			`l.addi r26,r0,0x0`
61			`l.addi r27,r0,0x0`
62			`l.addi r28,r0,0x0`
63			`l.addi r29,r0,0x0`
64			`l.addi r30,r0,0x0`
65			`l.addi r31,r0,0x0`
66
67			`l.movhi r3,hi(start)`
68			`l.ori r3,r3,lo(start)`
69			`l.jr r3`
70	576	markom	`l.nop`
71	970	simons	`start:`
72			`l.jal _init_mc`
73			`l.nop`
74
75			`/* Setup exception wrapper */`
76			`l.movhi r3,hi(_src_beg)`
77			`l.ori r3,r3,lo(_src_beg)`
78			`l.movhi r4,hi(_dst_beg)`
79			`l.ori r4,r4,lo(_dst_beg)`
80			`l.movhi r5,hi(_dst_end)`
81			`l.ori r5,r5,lo(_dst_end)`
82			`l.sub r5,r5,r4`
83			`l.sfeqi r5,0`
84			`l.bf 2f`
85			`l.nop`
86			`1:`
87			`l.lwz r6,0(r3)`
88			`l.sw 0(r4),r6`
89			`l.addi r3,r3,4`
90			`l.addi r4,r4,4`
91			`l.addi r5,r5,-4`
92			`l.sfgtsi r5,0`
93			`l.bf 1b`
94			`l.nop`
95			`2:`
96			`l.movhi r2,hi(_main)`
97			`l.ori r2,r2,lo(_main)`
98			`l.jr r2`
99			`l.nop`
100
101			`_init_mc:`
102
103			`l.movhi r3,hi(MC_BASE_ADDR)`
104			`l.ori r3,r3,lo(MC_BASE_ADDR)`
105
106			`l.addi r4,r3,MC_CSC(0)`
107			`l.movhi r5,hi(FLASH_BASE_ADDR)`
108			`l.srai r5,r5,6`
109			`l.ori r5,r5,0x0025`
110			`l.sw 0(r4),r5`
111
112			`l.addi r4,r3,MC_TMS(0)`
113			`l.movhi r5,hi(FLASH_TMS_VAL)`
114			`l.ori r5,r5,lo(FLASH_TMS_VAL)`
115			`l.sw 0(r4),r5`
116
117			`l.addi r4,r3,MC_BA_MASK`
118			`l.addi r5,r0,MC_MASK_VAL`
119			`l.sw 0(r4),r5`
120
121			`l.addi r4,r3,MC_CSR`
122			`l.movhi r5,hi(MC_CSR_VAL)`
123			`l.ori r5,r5,lo(MC_CSR_VAL)`
124			`l.sw 0(r4),r5`
125
126			`l.addi r4,r3,MC_TMS(1)`
127			`l.movhi r5,hi(SDRAM_TMS_VAL)`
128			`l.ori r5,r5,lo(SDRAM_TMS_VAL)`
129			`l.sw 0(r4),r5`
130
131			`l.addi r4,r3,MC_CSC(1)`
132			`l.movhi r5,hi(SDRAM_BASE_ADDR)`
133			`l.srai r5,r5,6`
134			`l.ori r5,r5,0x0411`
135			`l.sw 0(r4),r5`
136
137			`l.jr r9`
138			`l.nop`
139
140			`.section .text`
141
142	576	markom	`#`
143	600	simons	`# Tick timer exception handler`
144	576	markom	`#`
145
146			`l.addi r31,r3,0`
147			`# get interrupted program pc`
148			`l.mfspr r25,r0,SPR_EPCR_BASE`
149
150			`# calculate instruction address`
151			`l.movhi r26,hi(_ie_start)`
152			`l.ori r26,r26,lo(_ie_start)`
153			`l.addi r3,r25,0 #print insn index`
154			`l.nop 2`
155			`l.sub r25,r25,r26`
156			`l.addi r3,r25,0 #print insn index`
157			`l.nop 2`
158
159			`l.addi r3,r31,0 # restore r3`
160			`l.sfeqi r25, 0x00`
161			`l.bf _i00`
162			`l.sfeqi r25, 0x04`
163			`l.bf _i04`
164			`l.sfeqi r25, 0x08`
165			`l.bf _i08`
166			`l.sfeqi r25, 0x0c`
167			`l.bf _i0c`
168			`l.sfeqi r25, 0x10`
169			`l.bf _i10`
170			`l.sfeqi r25, 0x14`
171			`l.bf _i14`
172			`l.sfeqi r25, 0x18`
173			`l.bf _i18`
174			`l.sfeqi r25, 0x1c`
175			`l.bf _i1c`
176			`l.sfeqi r25, 0x20`
177			`l.bf _i20`
178			`l.sfeqi r25, 0x24`
179			`l.bf _i24`
180			`l.sfeqi r25, 0x28`
181			`l.bf _i28`
182			`l.sfeqi r25, 0x2c`
183			`l.bf _i2c`
184			`l.sfeqi r25, 0x30`
185			`l.bf _i30`
186			`l.sfeqi r25, 0x34`
187			`l.bf _i34`
188			`l.sfeqi r25, 0x38`
189			`l.bf _i38`
190			`l.nop`
191
192			`# value not defined`
193			`_die:`
194			`l.nop 2 #print r3`
195
196			`l.addi r3,r0,0xeeee`
197			`l.nop 2`
198			`l.addi r3,r0,1`
199			`l.nop 1`
200			`1:`
201			`l.j 1b`
202			`l.nop`
203
204	970	simons
205	576	markom	`_main:`
206			`l.nop`
207	600	simons	`l.addi r3,r0,SPR_SR_SM`
208			`l.mtspr r0,r3,SPR_SR`
209	576	markom	`l.nop`
210
211			`#`
212			`# set tick counter to initial 3 cycles`
213			`#`
214			`l.addi r16,r0,0`
215			`l.addi r17,r0,1`
216			`l.addi r18,r0,0`
217			`l.addi r19,r0,0`
218			`l.addi r22,r0,0`
219
220			`l.movhi r23,hi(RAM_START)`
221			`l.ori r23,r23,lo(RAM_START)`
222
223	600	simons	`# Set r20 to hold enable tick exception`
224	576	markom	`l.mfspr r20,r0,SPR_SR`
225	600	simons	`l.ori r20,r20,SPR_SR_SM\|SPR_SR_TEE\|SPR_SR_F`
226	576	markom
227			`# Set r21 to hold value of TTMR`
228			`l.movhi r5,hi(SPR_TTMR_SR \| SPR_TTMR_IE)`
229			`l.add r21,r5,r17`
230
231			`#`
232			`# MAIN LOOP`
233			`#`
234			`_main_loop:`
235			`# reinitialize memory and registers`
236			`l.addi r3,r0,0xaaaa`
237			`l.addi r9,r0,0xbbbb`
238			`l.sw 0(r23),r3`
239			`l.sw 4(r23),r9`
240			`l.sw 8(r23),r3`
241
242			`# Reinitializes tick timer`
243			`l.addi r17,r17,1`
244			`l.mtspr r0,r0,SPR_TTCR # set TTCR`
245			`l.mtspr r0,r21,SPR_TTMR # set TTMR`
246			`l.mtspr r0,r0,SPR_TTCR # set TTCR`
247			`l.addi r21,r21,1`
248
249			`# Enable exceptions and interrupts`
250			`l.mtspr r0,r20,SPR_SR # set SR`
251
252			`##### TEST CODE #####`
253			`_ie_start:`
254			`l.movhi r3,0x1234 #00`
255			`l.sw 0(r23),r3 #04`
256			`l.movhi r3,hi(RAM_START) #08`
257			`l.lwz r3,0(r3) #0c`
258			`l.movhi r3,hi(RAM_START) #10`
259			`l.addi r3,r3,4 #14`
260			`l.j 1f #18`
261			`l.lwz r3,0(r3) #1c`
262			`l.addi r3,r3,1 #20`
263			`1:`
264			`l.sfeqi r3,0xdead #24`
265			`l.jal 2f #28`
266			`l.addi r3,r0,0x5678 #2c`
267
268			`_return_addr:`
269			`2:`
270			`l.bf _die #30`
271			`l.sw 8(r23),r3 #34`
272			`_ie_end:`
273			`l.nop #38`
274			`##### END OF TEST CODE #####`
275
276			`# do some testing`
277
278			`l.j _main_loop`
279			`l.nop`
280
281			`_i00:`
282			`l.sfeqi r3,0xaaaa`
283			`l.bnf _die`
284			`l.nop`
285			`l.j _resume`
286			`l.nop`
287			`_i04:`
288			`l.movhi r26,0x1234`
289			`l.sfeq r3,r26`
290			`l.bnf _die`
291			`l.nop`
292			`l.lwz r26,0(r23)`
293			`l.sfeqi r26,0xaaaa`
294			`l.bnf _die`
295			`l.nop`
296			`l.j _resume`
297			`l.nop`
298			`_i08:`
299			`l.movhi r26,0x1234`
300			`l.sfeq r3,r26`
301			`l.bnf _die`
302			`l.nop`
303			`l.lwz r27,0(r23)`
304			`l.sfeq r27,r26`
305			`l.bnf _die`
306			`l.nop`
307			`l.j _resume`
308			`l.nop`
309			`_i0c:`
310			`l.sfeq r3,r23`
311			`l.bnf _die`
312			`l.nop`
313			`l.j _resume`
314			`l.nop`
315			`_i10:`
316			`l.movhi r26,0x1234`
317			`l.sfeq r26,r3`
318			`l.bnf _die`
319			`l.nop`
320			`l.j _resume`
321			`l.nop`
322			`_i14:`
323			`l.sfeq r3,r23`
324			`l.bnf _die`
325			`l.nop`
326			`l.j _resume`
327			`l.nop`
328			`_i18:`
329			`l.addi r26,r23,4`
330			`l.sfeq r3,r26`
331			`l.bnf _die`
332			`l.nop`
333			`l.j _resume`
334			`l.nop`
335			`_i1c:`
336			`l.j _die`
337			`l.nop`
338			`_i20:`
339			`l.j _die`
340			`l.nop`
341			`_i24:`
342			`l.mfspr r26,r0,SPR_ESR_BASE`
343			`l.addi r30,r3,0`
344			`l.addi r3,r26,0`
345			`l.nop 2`
346			`l.addi r3,r30,0`
347			`l.andi r26,r26,SPR_SR_F`
348			`l.sfeq r26,r0`
349	970	simons	`/* l.bnf _die */`
350	576	markom	`l.nop`
351			`l.sfeqi r3,0xbbbb`
352			`l.bnf _die`
353			`l.nop`
354			`l.j _resume`
355			`l.nop`
356			`_i28:`
357			`l.mfspr r26,r0,SPR_ESR_BASE`
358			`l.addi r30,r3,0`
359			`l.addi r3,r26,0`
360			`l.nop 2`
361			`l.addi r3,r30,0`
362			`l.andi r26,r26,SPR_SR_F`
363			`l.sfeq r26,r0`
364			`l.bnf _die`
365			`l.nop`
366			`l.sfeqi r22,1`
367			`l.bf _resume`
368			`l.addi r22,r0,1`
369			`l.sfeqi r9,0xbbbb`
370			`l.bnf _die`
371			`l.nop`
372			`l.j _resume`
373			`l.nop`
374			`_i2c:`
375			`l.movhi r26,hi(_return_addr)`
376			`l.ori r26,r26,lo(_return_addr)`
377			`l.sfeq r9,r26`
378			`l.bnf _die`
379			`l.nop`
380			`l.sfeqi r3,0xbbbb`
381			`l.bnf _die`
382			`l.nop`
383			`l.j _resume`
384			`l.nop`
385			`_i30:`
386			`l.sfeqi r3,0x5678`
387			`l.bnf _die`
388			`l.nop`
389			`l.j _resume`
390			`l.nop`
391			`_i34:`
392			`l.sfeqi r3,0x5678`
393			`l.bnf _die`
394			`l.nop`
395			`l.lwz r26,8(r23)`
396			`l.sfeqi r26,0xaaaa`
397			`l.bnf _die`
398			`l.nop`
399			`l.j _resume`
400			`l.nop`
401			`_i38:`
402			`l.lwz r26,8(r23)`
403			`l.sfeqi r26,0x5678`
404			`l.bnf _die`
405			`l.nop`
406			`#`
407			`# mark finished ok`
408			`#`
409			`l.movhi r3,hi(0xdeaddead)`
410			`l.ori r3,r3,lo(0xdeaddead)`
411			`l.nop 2`
412			`l.addi r3,r0,0`
413			`l.nop 1`
414			`_ok:`
415			`l.j _ok`
416			`l.nop`
417
418			`_resume:`
419			`l.mfspr r27,r0,SPR_ESR_BASE`
420	600	simons	`l.addi r26,r0,SPR_SR_TEE`
421	576	markom	`l.addi r28,r0,-1`
422			`l.xor r26,r26,r28`
423			`l.and r26,r26,r27`
424			`l.mtspr r0,r26,SPR_ESR_BASE`
425
426			`l.rfe`
427			`l.addi r3,r3,5 # should not be executed`

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