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#include "port_spr_defs.h"
 
        .file           "portasm.S"
        .section        .text
 
.macro portSAVE_REGISTER
        l.addi  r1, r1, -116
        l.sw    0x00(r1), r3
        l.sw    0x04(r1), r4
        l.sw    0x08(r1), r5
        l.sw    0x0c(r1), r6
        l.sw    0x10(r1), r7
        l.sw    0x14(r1), r8
        l.sw    0x18(r1), r9
        l.sw    0x1c(r1), r10
        l.sw    0x20(r1), r11
        l.sw    0x24(r1), r12
        l.sw    0x28(r1), r13
        l.sw    0x2c(r1), r14
        l.sw    0x30(r1), r15
        l.sw    0x34(r1), r16
        l.sw    0x38(r1), r17
        l.sw    0x3c(r1), r18
        l.sw    0x40(r1), r19
        l.sw    0x44(r1), r20
        l.sw    0x48(r1), r21
        l.sw    0x4c(r1), r22
        l.sw    0x50(r1), r23
        l.sw    0x54(r1), r24
        l.sw    0x58(r1), r25
        l.sw    0x5c(r1), r26
        l.sw    0x60(r1), r27
        l.sw    0x64(r1), r28
        l.sw    0x68(r1), r29
        l.sw    0x6c(r1), r30
        l.sw    0x70(r1), r31
.endm
 
 
.macro portRESTORE_REGISTER
        l.lwz   r3 , 0x00(r1)
        l.lwz   r4 , 0x04(r1)
        l.lwz   r5 , 0x08(r1)
        l.lwz   r6 , 0x0c(r1)
        l.lwz   r7 , 0x10(r1)
        l.lwz   r8 , 0x14(r1)
        l.lwz   r9 , 0x18(r1)
        l.lwz   r10, 0x1c(r1)
        l.lwz   r11, 0x20(r1)
        l.lwz   r12, 0x24(r1)
        l.lwz   r13, 0x28(r1)
        l.lwz   r14, 0x2c(r1)
        l.lwz   r15, 0x30(r1)
        l.lwz   r16, 0x34(r1)
        l.lwz   r17, 0x38(r1)
        l.lwz   r18, 0x3c(r1)
        l.lwz   r19, 0x40(r1)
        l.lwz   r20, 0x44(r1)
        l.lwz   r21, 0x48(r1)
        l.lwz   r22, 0x4c(r1)
        l.lwz   r23, 0x50(r1)
        l.lwz   r24, 0x54(r1)
        l.lwz   r25, 0x58(r1)
        l.lwz   r26, 0x5c(r1)
        l.lwz   r27, 0x60(r1)
        l.lwz   r28, 0x64(r1)
        l.lwz   r29, 0x68(r1)
        l.lwz   r30, 0x6c(r1)
        l.lwz   r31, 0x70(r1)
        l.addi  r1, r1, 116
.endm
 
 
.macro portSAVE_CONTEXT
        .global pxCurrentTCB
        # make rooms in stack
        l.addi  r1, r1, -132
        # early save r3-r5, these are clobber register
        l.sw    0x08(r1), r3
        l.sw    0x0C(r1), r4
        l.sw    0x10(r1), r5
        # save SPR_ESR_BASE(0), SPR_EPCR_BASE(0)
        l.mfspr r3, r0, SPR_ESR_BASE
        l.mfspr r4, r0, SPR_EPCR_BASE
        l.sw    0x78(r1), r3
        l.sw    0x7C(r1), r4
        l.sw    0x00(r1), r9
        # Save Context
        l.sw    0x04(r1), r2
        l.sw    0x14(r1), r6
        l.sw    0x18(r1), r7
        l.sw    0x1C(r1), r8
        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
        # Save the top of stack in TCB
        l.movhi r3, hi(pxCurrentTCB)
        l.ori   r3, r3, lo(pxCurrentTCB)
        l.lwz   r3, 0x0(r3)
        l.sw    0x0(r3), r1
        # restore clobber register
        l.lwz   r3, 0x08(r1)
        l.lwz   r4, 0x0C(r1)
        l.lwz   r5, 0x10(r1)
.endm
 
 
.macro portRESTORE_CONTEXT
        l.movhi r3, hi(pxCurrentTCB)
        l.ori   r3, r3, lo(pxCurrentTCB)
        l.lwz   r3, 0x0(r3)
        l.lwz   r1, 0x0(r3)
        # restore context
        l.lwz   r9, 0x00(r1)
        l.lwz   r2, 0x04(r1)
        l.lwz   r6, 0x14(r1)
        l.lwz   r7, 0x18(r1)
        l.lwz   r8, 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)
        # restore SPR_ESR_BASE(0), SPR_EPCR_BASE(0)
        l.lwz   r3, 0x78(r1)
        l.lwz   r4, 0x7C(r1)
        l.mtspr r0, r3, SPR_ESR_BASE
        l.mtspr r0, r4, SPR_EPCR_BASE
        # restore clobber register
        l.lwz   r3, 0x08(r1)
        l.lwz   r4, 0x0C(r1)
        l.lwz   r5, 0x10(r1)
        l.addi  r1, r1, 132
        l.rfe
        l.nop
.endm
 
 
.text
.global vPortTickHandler
.type   vPortTickHandler, %function
vPortTickHandler:
        portSAVE_CONTEXT
 
        l.mfspr r3, r0, SPR_TTMR
        l.movhi r4, hi(SPR_TTMR_IP)
        l.ori   r4, r4, lo(SPR_TTMR_IP)
        l.xori  r4, r4, 0xffffffff
        l.and   r3, r3, r4                              # clear tick timer interrupt
        l.mtspr r0, r3, SPR_TTMR
 
        l.jal   vTaskIncrementTick
        l.nop
.if configUSE_PREEMPTION == 0
        # do nothing
.else
        l.jal   vTaskSwitchContext
        l.nop
.endif
 
        portRESTORE_CONTEXT
.size   vPortTickHandler, .-vPortTickHandler
 
 
.text
.global vPortSystemCall
.type   vPortSystemCall, %function
vPortSystemCall:
        portSAVE_CONTEXT
 
        l.jal   vTaskSwitchContext
        l.nop
 
        portRESTORE_CONTEXT
.size   vPortSystemCall, .-vPortSystemCall
 
 
.text
.global vPortExtIntHandler
.type   vPortExtIntHandler, %function
vPortExtIntHandler:
        portSAVE_CONTEXT
 
    l.jal       int_main
        l.nop
 
.if configUSE_PREEMPTION == 0
        # do nothing
.else
        l.jal   vTaskSwitchContext
        l.nop
.endif
 
        portRESTORE_CONTEXT
.size   vPortExtIntHandler, .-vPortExtIntHandler
 
 
.text
.global vPortMiscIntHandler
.type   vPortMiscIntHandler, %function
vPortMiscIntHandler:
        portSAVE_CONTEXT
 
    l.jal       misc_int_handler
        l.lwz   r3, -4(r1)
 
.if configUSE_PREEMPTION == 0
        # do nothing
.else
        l.jal   vTaskSwitchContext
        l.nop
.endif
 
        portRESTORE_CONTEXT
.size   vPortMiscIntHandler, .-vPortMiscIntHandler

Line No.	Rev	Author	Line
1	572	jeremybenn	`#include "port_spr_defs.h"`
2
3			`.file "portasm.S"`
4			`.section .text`
5
6	621	filepang	`.macro portSAVE_REGISTER`
7			`l.addi r1, r1, -116`
8			`l.sw 0x00(r1), r3`
9			`l.sw 0x04(r1), r4`
10			`l.sw 0x08(r1), r5`
11			`l.sw 0x0c(r1), r6`
12			`l.sw 0x10(r1), r7`
13			`l.sw 0x14(r1), r8`
14			`l.sw 0x18(r1), r9`
15			`l.sw 0x1c(r1), r10`
16			`l.sw 0x20(r1), r11`
17			`l.sw 0x24(r1), r12`
18			`l.sw 0x28(r1), r13`
19			`l.sw 0x2c(r1), r14`
20			`l.sw 0x30(r1), r15`
21			`l.sw 0x34(r1), r16`
22			`l.sw 0x38(r1), r17`
23			`l.sw 0x3c(r1), r18`
24			`l.sw 0x40(r1), r19`
25			`l.sw 0x44(r1), r20`
26			`l.sw 0x48(r1), r21`
27			`l.sw 0x4c(r1), r22`
28			`l.sw 0x50(r1), r23`
29			`l.sw 0x54(r1), r24`
30			`l.sw 0x58(r1), r25`
31			`l.sw 0x5c(r1), r26`
32			`l.sw 0x60(r1), r27`
33			`l.sw 0x64(r1), r28`
34			`l.sw 0x68(r1), r29`
35			`l.sw 0x6c(r1), r30`
36			`l.sw 0x70(r1), r31`
37			`.endm`
38
39
40			`.macro portRESTORE_REGISTER`
41			`l.lwz r3 , 0x00(r1)`
42			`l.lwz r4 , 0x04(r1)`
43			`l.lwz r5 , 0x08(r1)`
44			`l.lwz r6 , 0x0c(r1)`
45			`l.lwz r7 , 0x10(r1)`
46			`l.lwz r8 , 0x14(r1)`
47			`l.lwz r9 , 0x18(r1)`
48			`l.lwz r10, 0x1c(r1)`
49			`l.lwz r11, 0x20(r1)`
50			`l.lwz r12, 0x24(r1)`
51			`l.lwz r13, 0x28(r1)`
52			`l.lwz r14, 0x2c(r1)`
53			`l.lwz r15, 0x30(r1)`
54			`l.lwz r16, 0x34(r1)`
55			`l.lwz r17, 0x38(r1)`
56			`l.lwz r18, 0x3c(r1)`
57			`l.lwz r19, 0x40(r1)`
58			`l.lwz r20, 0x44(r1)`
59			`l.lwz r21, 0x48(r1)`
60			`l.lwz r22, 0x4c(r1)`
61			`l.lwz r23, 0x50(r1)`
62			`l.lwz r24, 0x54(r1)`
63			`l.lwz r25, 0x58(r1)`
64			`l.lwz r26, 0x5c(r1)`
65			`l.lwz r27, 0x60(r1)`
66			`l.lwz r28, 0x64(r1)`
67			`l.lwz r29, 0x68(r1)`
68			`l.lwz r30, 0x6c(r1)`
69			`l.lwz r31, 0x70(r1)`
70			`l.addi r1, r1, 116`
71			`.endm`
72
73
74			`.macro portSAVE_CONTEXT`
75	572	jeremybenn	`.global pxCurrentTCB`
76			`# make rooms in stack`
77	665	filepang	`l.addi r1, r1, -132`
78	572	jeremybenn	`# early save r3-r5, these are clobber register`
79			`l.sw 0x08(r1), r3`
80			`l.sw 0x0C(r1), r4`
81			`l.sw 0x10(r1), r5`
82			`# save SPR_ESR_BASE(0), SPR_EPCR_BASE(0)`
83	621	filepang	`l.mfspr r3, r0, SPR_ESR_BASE`
84			`l.mfspr r4, r0, SPR_EPCR_BASE`
85	572	jeremybenn	`l.sw 0x78(r1), r3`
86			`l.sw 0x7C(r1), r4`
87			`l.sw 0x00(r1), r9`
88			`# Save Context`
89			`l.sw 0x04(r1), r2`
90			`l.sw 0x14(r1), r6`
91			`l.sw 0x18(r1), r7`
92			`l.sw 0x1C(r1), r8`
93			`l.sw 0x20(r1), r10`
94			`l.sw 0x24(r1), r11`
95			`l.sw 0x28(r1), r12`
96			`l.sw 0x2C(r1), r13`
97			`l.sw 0x30(r1), r14`
98			`l.sw 0x34(r1), r15`
99			`l.sw 0x38(r1), r16`
100			`l.sw 0x3C(r1), r17`
101			`l.sw 0x40(r1), r18`
102			`l.sw 0x44(r1), r19`
103			`l.sw 0x48(r1), r20`
104			`l.sw 0x4C(r1), r21`
105			`l.sw 0x50(r1), r22`
106			`l.sw 0x54(r1), r23`
107			`l.sw 0x58(r1), r24`
108			`l.sw 0x5C(r1), r25`
109			`l.sw 0x60(r1), r26`
110			`l.sw 0x64(r1), r27`
111			`l.sw 0x68(r1), r28`
112			`l.sw 0x6C(r1), r29`
113			`l.sw 0x70(r1), r30`
114			`l.sw 0x74(r1), r31`
115			`# Save the top of stack in TCB`
116			`l.movhi r3, hi(pxCurrentTCB)`
117			`l.ori r3, r3, lo(pxCurrentTCB)`
118			`l.lwz r3, 0x0(r3)`
119			`l.sw 0x0(r3), r1`
120			`# restore clobber register`
121			`l.lwz r3, 0x08(r1)`
122			`l.lwz r4, 0x0C(r1)`
123			`l.lwz r5, 0x10(r1)`
124	621	filepang	`.endm`
125	572	jeremybenn
126	621	filepang
127			`.macro portRESTORE_CONTEXT`
128	572	jeremybenn	`l.movhi r3, hi(pxCurrentTCB)`
129			`l.ori r3, r3, lo(pxCurrentTCB)`
130			`l.lwz r3, 0x0(r3)`
131			`l.lwz r1, 0x0(r3)`
132			`# restore context`
133			`l.lwz r9, 0x00(r1)`
134			`l.lwz r2, 0x04(r1)`
135			`l.lwz r6, 0x14(r1)`
136			`l.lwz r7, 0x18(r1)`
137			`l.lwz r8, 0x1C(r1)`
138			`l.lwz r10, 0x20(r1)`
139			`l.lwz r11, 0x24(r1)`
140			`l.lwz r12, 0x28(r1)`
141			`l.lwz r13, 0x2C(r1)`
142			`l.lwz r14, 0x30(r1)`
143			`l.lwz r15, 0x34(r1)`
144			`l.lwz r16, 0x38(r1)`
145			`l.lwz r17, 0x3C(r1)`
146			`l.lwz r18, 0x40(r1)`
147			`l.lwz r19, 0x44(r1)`
148			`l.lwz r20, 0x48(r1)`
149			`l.lwz r21, 0x4C(r1)`
150			`l.lwz r22, 0x50(r1)`
151			`l.lwz r23, 0x54(r1)`
152			`l.lwz r24, 0x58(r1)`
153			`l.lwz r25, 0x5C(r1)`
154			`l.lwz r26, 0x60(r1)`
155			`l.lwz r27, 0x64(r1)`
156			`l.lwz r28, 0x68(r1)`
157			`l.lwz r29, 0x6C(r1)`
158			`l.lwz r30, 0x70(r1)`
159			`l.lwz r31, 0x74(r1)`
160			`# restore SPR_ESR_BASE(0), SPR_EPCR_BASE(0)`
161			`l.lwz r3, 0x78(r1)`
162			`l.lwz r4, 0x7C(r1)`
163	621	filepang	`l.mtspr r0, r3, SPR_ESR_BASE`
164			`l.mtspr r0, r4, SPR_EPCR_BASE`
165	572	jeremybenn	`# restore clobber register`
166			`l.lwz r3, 0x08(r1)`
167			`l.lwz r4, 0x0C(r1)`
168			`l.lwz r5, 0x10(r1)`
169	665	filepang	`l.addi r1, r1, 132`
170	572	jeremybenn	`l.rfe`
171			`l.nop`
172	621	filepang	`.endm`
173	572	jeremybenn
174
175	621	filepang	`.text`
176			`.global vPortTickHandler`
177			`.type vPortTickHandler, %function`
178			`vPortTickHandler:`
179			`portSAVE_CONTEXT`
180
181			`l.mfspr r3, r0, SPR_TTMR`
182			`l.movhi r4, hi(SPR_TTMR_IP)`
183			`l.ori r4, r4, lo(SPR_TTMR_IP)`
184			`l.xori r4, r4, 0xffffffff`
185			`l.and r3, r3, r4 # clear tick timer interrupt`
186			`l.mtspr r0, r3, SPR_TTMR`
187	572	jeremybenn
188	621	filepang	`l.jal vTaskIncrementTick`
189			`l.nop`
190			`.if configUSE_PREEMPTION == 0`
191			`# do nothing`
192			`.else`
193			`l.jal vTaskSwitchContext`
194			`l.nop`
195			`.endif`
196
197			`portRESTORE_CONTEXT`
198			`.size vPortTickHandler, .-vPortTickHandler`
199
200
201	572	jeremybenn	`.text`
202	621	filepang	`.global vPortSystemCall`
203			`.type vPortSystemCall, %function`
204			`vPortSystemCall:`
205	664	filepang	`portSAVE_CONTEXT`
206	621	filepang
207	664	filepang	`l.jal vTaskSwitchContext`
208	572	jeremybenn	`l.nop`
209	621	filepang
210			`portRESTORE_CONTEXT`
211			`.size vPortSystemCall, .-vPortSystemCall`
212
213
214			`.text`
215			`.global vPortExtIntHandler`
216			`.type vPortExtIntHandler, %function`
217			`vPortExtIntHandler:`
218			`portSAVE_CONTEXT`
219
220			`l.jal int_main`
221			`l.nop`
222
223			`.if configUSE_PREEMPTION == 0`
224			`# do nothing`
225			`.else`
226	572	jeremybenn	`l.jal vTaskSwitchContext`
227			`l.nop`
228	621	filepang	`.endif`
229	572	jeremybenn
230	621	filepang	`portRESTORE_CONTEXT`
231			`.size vPortExtIntHandler, .-vPortExtIntHandler`
232	572	jeremybenn
233	621	filepang
234			`.text`
235			`.global vPortMiscIntHandler`
236			`.type vPortMiscIntHandler, %function`
237			`vPortMiscIntHandler:`
238			`portSAVE_CONTEXT`
239
240			`l.jal misc_int_handler`
241			`l.lwz r3, -4(r1)`
242
243			`.if configUSE_PREEMPTION == 0`
244			`# do nothing`
245			`.else`
246			`l.jal vTaskSwitchContext`
247			`l.nop`
248			`.endif`
249
250			`portRESTORE_CONTEXT`
251			`.size vPortMiscIntHandler, .-vPortMiscIntHandler`

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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Source/] [portable/] [GCC/] [OpenRISC/] [portasm.S] - Blame information for rev 665