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/****************************************
 SuperH (SH-2) C compiler Startup Routine
 ----------------------------------------
     Rev1. March 21, 2003 by Thorn Aitch
 ****************************************/
 
/********************
 Section: .text (ROM)
 ********************/
    .section  .text
 
/************
 Vector Table
 ************/
_vector_top:
    .long     _start       ! #000
    .long     _stack+0x200 ! #001
    .long     _start       ! #002
    .long     _stack+0x200 ! #003
    .long     _gnrl_ilgl   ! #004
    .long     _unexpected  ! #005
    .long     _slot_ilgl   ! #006
    .long     _unexpected  ! #007
    .long     _unexpected  ! #008
    .long     _cpuerr      ! #009
    .long     _dmaerr      ! #010
    .long     _nmi         ! #011
    .long     _unexpected  ! #012
    .long     _unexpected  ! #013
    .long     _unexpected  ! #014
    .long     _unexpected  ! #015
    .long     _unexpected  ! #016
    .long     _unexpected  ! #017
    .long     _unexpected  ! #018
    .long     _unexpected  ! #019
    .long     _unexpected  ! #020
    .long     _unexpected  ! #021
    .long     _unexpected  ! #022
    .long     _unexpected  ! #023
    .long     _unexpected  ! #024
    .long     _unexpected  ! #025
    .long     _unexpected  ! #026
    .long     _unexpected  ! #027
    .long     _unexpected  ! #028
    .long     _unexpected  ! #029
    .long     _unexpected  ! #030
    .long     _unexpected  ! #031
    .long     _trap        ! #032
    .long     _trap        ! #033
    .long     _trap        ! #034
    .long     _trap        ! #035
    .long     _trap        ! #036
    .long     _trap        ! #037
    .long     _trap        ! #038
    .long     _trap        ! #039
    .long     _trap        ! #040
    .long     _trap        ! #041
    .long     _trap        ! #042
    .long     _trap        ! #043
    .long     _trap        ! #044
    .long     _trap        ! #045
    .long     _trap        ! #046
    .long     _trap        ! #047
    .long     _trap        ! #048
    .long     _trap        ! #049
    .long     _trap        ! #050
    .long     _trap        ! #051
    .long     _trap        ! #052
    .long     _trap        ! #053
    .long     _trap        ! #054
    .long     _trap        ! #055
    .long     _trap        ! #056
    .long     _trap        ! #057
    .long     _trap        ! #058
    .long     _trap        ! #059
    .long     _trap        ! #060
    .long     _trap        ! #061
    .long     _trap        ! #062
    .long     _trap        ! #063
    .long     _irq0        ! #064
    .long     _irq1        ! #065
    .long     _irq2        ! #066
    .long     _irq3        ! #067
    .long     _irq4        ! #068
    .long     _irq5        ! #069
    .long     _irq6        ! #070
    .long     _irq7        ! #071
 
/***************
 General Illegal
 Slot Illegal
 ***************/
_gnrl_ilgl:
_slot_ilgl:
    mov.l    _pillegal, r0
    jsr      @r0
    nop
_restart:
    mov.l    _pvector_top, r1
    mov.l    @r1, r0
    jmp      @r0
    mov.l    @(4, r1), r15
 
/*****************
 CPU Address Error
 DMA Address Error
 Unexpected Vector
 *****************/
_cpuerr:
_dmaerr:
_unexpected:
    mov.l    _perror, r0
    jsr      @r0
    nop
    bra      _restart
    nop
 
/****************************
 NMI (Non Maskable Interrupt)
 ****************************/
_nmi:
    stc.l   gbr, @-r15
    stc.l   vbr, @-r15
    sts.l   mach, @-r15
    sts.l   macl, @-r15
    sts.l   pr, @-r15
    mov.l   r14, @-r15
    mov.l   r13, @-r15
    mov.l   r12, @-r15
    mov.l   r11, @-r15
    mov.l   r10, @-r15
    mov.l   r9, @-r15
    mov.l   r8, @-r15
    mov.l   r7, @-r15
    mov.l   r6, @-r15
    mov.l   r5, @-r15
    mov.l   r4, @-r15
    mov.l   r3, @-r15
    mov.l   r2, @-r15
    mov.l   r1, @-r15
    mov.l   r0, @-r15
    mov.l    _pnmi_handler, r0
    jsr      @r0
    nop
    mov.l   @r15+, r0
    mov.l   @r15+, r1
    mov.l   @r15+, r2
    mov.l   @r15+, r3
    mov.l   @r15+, r4
    mov.l   @r15+, r5
    mov.l   @r15+, r6
    mov.l   @r15+, r7
    mov.l   @r15+, r8
    mov.l   @r15+, r9
    mov.l   @r15+, r10
    mov.l   @r15+, r11
    mov.l   @r15+, r12
    mov.l   @r15+, r13
    mov.l   @r15+, r14
    lds.l   @r15+, pr
    lds.l   @r15+, macl
    lds.l   @r15+, mach
    ldc.l   @r15+, vbr
    ldc.l   @r15+, gbr
    rte
    nop
 
/***********************
 IRQ (Interrupt Request)
 ***********************/
_irq0:
_irq1:
_irq2:
_irq3:
_irq4:
_irq5:
_irq6:
_irq7:
    stc.l   gbr, @-r15
    stc.l   vbr, @-r15
    sts.l   mach, @-r15
    sts.l   macl, @-r15
    sts.l   pr, @-r15
    mov.l   r14, @-r15
    mov.l   r13, @-r15
    mov.l   r12, @-r15
    mov.l   r11, @-r15
    mov.l   r10, @-r15
    mov.l   r9, @-r15
    mov.l   r8, @-r15
    mov.l   r7, @-r15
    mov.l   r6, @-r15
    mov.l   r5, @-r15
    mov.l   r4, @-r15
    mov.l   r3, @-r15
    mov.l   r2, @-r15
    mov.l   r1, @-r15
    mov.l   r0, @-r15
    mov.l    _pirq_handler, r0
    jsr      @r0
    nop
    mov.l   @r15+, r0
    mov.l   @r15+, r1
    mov.l   @r15+, r2
    mov.l   @r15+, r3
    mov.l   @r15+, r4
    mov.l   @r15+, r5
    mov.l   @r15+, r6
    mov.l   @r15+, r7
    mov.l   @r15+, r8
    mov.l   @r15+, r9
    mov.l   @r15+, r10
    mov.l   @r15+, r11
    mov.l   @r15+, r12
    mov.l   @r15+, r13
    mov.l   @r15+, r14
    lds.l   @r15+, pr
    lds.l   @r15+, macl
    lds.l   @r15+, mach
    ldc.l   @r15+, vbr
    ldc.l   @r15+, gbr
    rte
    nop
 
/************
 TRAP Handler
 ************/
_trap:
    stc.l   gbr, @-r15
    stc.l   vbr, @-r15
    sts.l   mach, @-r15
    sts.l   macl, @-r15
    sts.l   pr, @-r15
    mov.l   r14, @-r15
    mov.l   r13, @-r15
    mov.l   r12, @-r15
    mov.l   r11, @-r15
    mov.l   r10, @-r15
    mov.l   r9, @-r15
    mov.l   r8, @-r15
    mov.l   r7, @-r15
    mov.l   r6, @-r15
    mov.l   r5, @-r15
    mov.l   r4, @-r15
    mov.l   r3, @-r15
    mov.l   r2, @-r15
    mov.l   r1, @-r15
    mov.l   r0, @-r15
    mov.l    _ptrap_handler, r0
    jsr      @r0
    nop
    mov.l   @r15+, r0
    mov.l   @r15+, r1
    mov.l   @r15+, r2
    mov.l   @r15+, r3
    mov.l   @r15+, r4
    mov.l   @r15+, r5
    mov.l   @r15+, r6
    mov.l   @r15+, r7
    mov.l   @r15+, r8
    mov.l   @r15+, r9
    mov.l   @r15+, r10
    mov.l   @r15+, r11
    mov.l   @r15+, r12
    mov.l   @r15+, r13
    mov.l   @r15+, r14
    lds.l   @r15+, pr
    lds.l   @r15+, macl
    lds.l   @r15+, mach
    ldc.l   @r15+, vbr
    ldc.l   @r15+, gbr
    rte
    nop
 
/************
 Main Routine
 ************/
    .org     _vector_top + 0x400
_start:
    mov.l    _pvector_top, r8
    ldc      r8, vbr
    mov      #0x00, r8
    ldc      r8, sr
    mov.l    _pmain_sh, r8
    jsr      @r8
    mov      #0, r14
 
_endless:
    bra      _endless
    nop
 
    .align   4
_pmain_sh :     .long _main_sh
_pvector_top:   .long _vector_top
_pillegal:      .long _illegal
_perror:        .long _error
_pnmi_handler:  .long _nmi_handler
_pirq_handler:  .long _irq_handler
_ptrap_handler: .long _trap_handler
 
/**********************
 Section: .rodata (ROM)
 **********************/
    .section .rodata
    .align 4
 
/********************
 Section: .data (RAM)
 ********************/
    .section .data
    .align 4
 
/*******************
 Section: .bss (RAM)
 *******************/
    .section .bss
    .align 4
 
/*********************
 Section: .stack (RAM)
 *********************/
    .section .stack
    .align   4
_stack:
        .end
 

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Subversion Repositories Aquarius

[/] [Aquarius/] [trunk/] [application/] [shc_clock/] [startup/] [crt0.S] - Blame information for rev 12

Line No.	Rev	Author	Line
1	2	thorn_aitc	`/****************************************`
2			`SuperH (SH-2) C compiler Startup Routine`
3			`----------------------------------------`
4			`Rev1. March 21, 2003 by Thorn Aitch`
5			`****************************************/`
6
7			`/********************`
8			`Section: .text (ROM)`
9			`********************/`
10			`.section .text`
11
12			`/************`
13			`Vector Table`
14			`************/`
15			`_vector_top:`
16			`.long _start ! #000`
17			`.long _stack+0x200 ! #001`
18			`.long _start ! #002`
19			`.long _stack+0x200 ! #003`
20			`.long _gnrl_ilgl ! #004`
21			`.long _unexpected ! #005`
22			`.long _slot_ilgl ! #006`
23			`.long _unexpected ! #007`
24			`.long _unexpected ! #008`
25			`.long _cpuerr ! #009`
26			`.long _dmaerr ! #010`
27			`.long _nmi ! #011`
28			`.long _unexpected ! #012`
29			`.long _unexpected ! #013`
30			`.long _unexpected ! #014`
31			`.long _unexpected ! #015`
32			`.long _unexpected ! #016`
33			`.long _unexpected ! #017`
34			`.long _unexpected ! #018`
35			`.long _unexpected ! #019`
36			`.long _unexpected ! #020`
37			`.long _unexpected ! #021`
38			`.long _unexpected ! #022`
39			`.long _unexpected ! #023`
40			`.long _unexpected ! #024`
41			`.long _unexpected ! #025`
42			`.long _unexpected ! #026`
43			`.long _unexpected ! #027`
44			`.long _unexpected ! #028`
45			`.long _unexpected ! #029`
46			`.long _unexpected ! #030`
47			`.long _unexpected ! #031`
48			`.long _trap ! #032`
49			`.long _trap ! #033`
50			`.long _trap ! #034`
51			`.long _trap ! #035`
52			`.long _trap ! #036`
53			`.long _trap ! #037`
54			`.long _trap ! #038`
55			`.long _trap ! #039`
56			`.long _trap ! #040`
57			`.long _trap ! #041`
58			`.long _trap ! #042`
59			`.long _trap ! #043`
60			`.long _trap ! #044`
61			`.long _trap ! #045`
62			`.long _trap ! #046`
63			`.long _trap ! #047`
64			`.long _trap ! #048`
65			`.long _trap ! #049`
66			`.long _trap ! #050`
67			`.long _trap ! #051`
68			`.long _trap ! #052`
69			`.long _trap ! #053`
70			`.long _trap ! #054`
71			`.long _trap ! #055`
72			`.long _trap ! #056`
73			`.long _trap ! #057`
74			`.long _trap ! #058`
75			`.long _trap ! #059`
76			`.long _trap ! #060`
77			`.long _trap ! #061`
78			`.long _trap ! #062`
79			`.long _trap ! #063`
80			`.long _irq0 ! #064`
81			`.long _irq1 ! #065`
82			`.long _irq2 ! #066`
83			`.long _irq3 ! #067`
84			`.long _irq4 ! #068`
85			`.long _irq5 ! #069`
86			`.long _irq6 ! #070`
87			`.long _irq7 ! #071`
88
89			`/***************`
90			`General Illegal`
91			`Slot Illegal`
92			`***************/`
93			`_gnrl_ilgl:`
94			`_slot_ilgl:`
95			`mov.l _pillegal, r0`
96			`jsr @r0`
97			`nop`
98			`_restart:`
99			`mov.l _pvector_top, r1`
100			`mov.l @r1, r0`
101			`jmp @r0`
102			`mov.l @(4, r1), r15`
103
104			`/*****************`
105			`CPU Address Error`
106			`DMA Address Error`
107			`Unexpected Vector`
108			`*****************/`
109			`_cpuerr:`
110			`_dmaerr:`
111			`_unexpected:`
112			`mov.l _perror, r0`
113			`jsr @r0`
114			`nop`
115			`bra _restart`
116			`nop`
117
118			`/****************************`
119			`NMI (Non Maskable Interrupt)`
120			`****************************/`
121			`_nmi:`
122			`stc.l gbr, @-r15`
123			`stc.l vbr, @-r15`
124			`sts.l mach, @-r15`
125			`sts.l macl, @-r15`
126			`sts.l pr, @-r15`
127			`mov.l r14, @-r15`
128			`mov.l r13, @-r15`
129			`mov.l r12, @-r15`
130			`mov.l r11, @-r15`
131			`mov.l r10, @-r15`
132			`mov.l r9, @-r15`
133			`mov.l r8, @-r15`
134			`mov.l r7, @-r15`
135			`mov.l r6, @-r15`
136			`mov.l r5, @-r15`
137			`mov.l r4, @-r15`
138			`mov.l r3, @-r15`
139			`mov.l r2, @-r15`
140			`mov.l r1, @-r15`
141			`mov.l r0, @-r15`
142			`mov.l _pnmi_handler, r0`
143			`jsr @r0`
144			`nop`
145			`mov.l @r15+, r0`
146			`mov.l @r15+, r1`
147			`mov.l @r15+, r2`
148			`mov.l @r15+, r3`
149			`mov.l @r15+, r4`
150			`mov.l @r15+, r5`
151			`mov.l @r15+, r6`
152			`mov.l @r15+, r7`
153			`mov.l @r15+, r8`
154			`mov.l @r15+, r9`
155			`mov.l @r15+, r10`
156			`mov.l @r15+, r11`
157			`mov.l @r15+, r12`
158			`mov.l @r15+, r13`
159			`mov.l @r15+, r14`
160			`lds.l @r15+, pr`
161			`lds.l @r15+, macl`
162			`lds.l @r15+, mach`
163			`ldc.l @r15+, vbr`
164			`ldc.l @r15+, gbr`
165			`rte`
166			`nop`
167
168			`/***********************`
169			`IRQ (Interrupt Request)`
170			`***********************/`
171			`_irq0:`
172			`_irq1:`
173			`_irq2:`
174			`_irq3:`
175			`_irq4:`
176			`_irq5:`
177			`_irq6:`
178			`_irq7:`
179			`stc.l gbr, @-r15`
180			`stc.l vbr, @-r15`
181			`sts.l mach, @-r15`
182			`sts.l macl, @-r15`
183			`sts.l pr, @-r15`
184			`mov.l r14, @-r15`
185			`mov.l r13, @-r15`
186			`mov.l r12, @-r15`
187			`mov.l r11, @-r15`
188			`mov.l r10, @-r15`
189			`mov.l r9, @-r15`
190			`mov.l r8, @-r15`
191			`mov.l r7, @-r15`
192			`mov.l r6, @-r15`
193			`mov.l r5, @-r15`
194			`mov.l r4, @-r15`
195			`mov.l r3, @-r15`
196			`mov.l r2, @-r15`
197			`mov.l r1, @-r15`
198			`mov.l r0, @-r15`
199			`mov.l _pirq_handler, r0`
200			`jsr @r0`
201			`nop`
202			`mov.l @r15+, r0`
203			`mov.l @r15+, r1`
204			`mov.l @r15+, r2`
205			`mov.l @r15+, r3`
206			`mov.l @r15+, r4`
207			`mov.l @r15+, r5`
208			`mov.l @r15+, r6`
209			`mov.l @r15+, r7`
210			`mov.l @r15+, r8`
211			`mov.l @r15+, r9`
212			`mov.l @r15+, r10`
213			`mov.l @r15+, r11`
214			`mov.l @r15+, r12`
215			`mov.l @r15+, r13`
216			`mov.l @r15+, r14`
217			`lds.l @r15+, pr`
218			`lds.l @r15+, macl`
219			`lds.l @r15+, mach`
220			`ldc.l @r15+, vbr`
221			`ldc.l @r15+, gbr`
222			`rte`
223			`nop`
224
225			`/************`
226			`TRAP Handler`
227			`************/`
228			`_trap:`
229			`stc.l gbr, @-r15`
230			`stc.l vbr, @-r15`
231			`sts.l mach, @-r15`
232			`sts.l macl, @-r15`
233			`sts.l pr, @-r15`
234			`mov.l r14, @-r15`
235			`mov.l r13, @-r15`
236			`mov.l r12, @-r15`
237			`mov.l r11, @-r15`
238			`mov.l r10, @-r15`
239			`mov.l r9, @-r15`
240			`mov.l r8, @-r15`
241			`mov.l r7, @-r15`
242			`mov.l r6, @-r15`
243			`mov.l r5, @-r15`
244			`mov.l r4, @-r15`
245			`mov.l r3, @-r15`
246			`mov.l r2, @-r15`
247			`mov.l r1, @-r15`
248			`mov.l r0, @-r15`
249			`mov.l _ptrap_handler, r0`
250			`jsr @r0`
251			`nop`
252			`mov.l @r15+, r0`
253			`mov.l @r15+, r1`
254			`mov.l @r15+, r2`
255			`mov.l @r15+, r3`
256			`mov.l @r15+, r4`
257			`mov.l @r15+, r5`
258			`mov.l @r15+, r6`
259			`mov.l @r15+, r7`
260			`mov.l @r15+, r8`
261			`mov.l @r15+, r9`
262			`mov.l @r15+, r10`
263			`mov.l @r15+, r11`
264			`mov.l @r15+, r12`
265			`mov.l @r15+, r13`
266			`mov.l @r15+, r14`
267			`lds.l @r15+, pr`
268			`lds.l @r15+, macl`
269			`lds.l @r15+, mach`
270			`ldc.l @r15+, vbr`
271			`ldc.l @r15+, gbr`
272			`rte`
273			`nop`
274
275			`/************`
276			`Main Routine`
277			`************/`
278			`.org _vector_top + 0x400`
279			`_start:`
280			`mov.l _pvector_top, r8`
281			`ldc r8, vbr`
282			`mov #0x00, r8`
283			`ldc r8, sr`
284			`mov.l _pmain_sh, r8`
285			`jsr @r8`
286			`mov #0, r14`
287
288			`_endless:`
289			`bra _endless`
290			`nop`
291
292			`.align 4`
293			`_pmain_sh : .long _main_sh`
294			`_pvector_top: .long _vector_top`
295			`_pillegal: .long _illegal`
296			`_perror: .long _error`
297			`_pnmi_handler: .long _nmi_handler`
298			`_pirq_handler: .long _irq_handler`
299			`_ptrap_handler: .long _trap_handler`
300
301			`/**********************`
302			`Section: .rodata (ROM)`
303			`**********************/`
304			`.section .rodata`
305			`.align 4`
306
307			`/********************`
308			`Section: .data (RAM)`
309			`********************/`
310			`.section .data`
311			`.align 4`
312
313			`/*******************`
314			`Section: .bss (RAM)`
315			`*******************/`
316			`.section .bss`
317			`.align 4`
318
319			`/*********************`
320			`Section: .stack (RAM)`
321			`*********************/`
322			`.section .stack`
323			`.align 4`
324			`_stack:`
325			`.end`
326