]> git.sur5r.net Git - freertos/blob - Demo/SuperH_SH7216_Renesas/RTOSDemo/webserver/EMAC_ISR.src
Update SuperH port to include WEB server.
[freertos] / Demo / SuperH_SH7216_Renesas / RTOSDemo / webserver / EMAC_ISR.src
1 ;/*\r
2 ;    FreeRTOS V6.0.2 - Copyright (C) 2009 Real Time Engineers Ltd.\r
3 ;\r
4 ;    ***************************************************************************\r
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24 ;\r
25 ;    This file is part of the FreeRTOS distribution.\r
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27 ;    FreeRTOS is free software; you can redistribute it and/or modify it under\r
28 ;    the terms of the GNU General Public License (version 2) as published by the\r
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44 ;    http://www.FreeRTOS.org - Documentation, latest information, license and\r
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47 ;    http://www.SafeRTOS.com - A version that is certified for use in safety\r
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50 ;    http://www.OpenRTOS.com - Commercial support, development, porting,\r
51 ;    licensing and training services.\r
52 ;*/\r
53 \r
54         .import _vEMAC_ISR_Handler\r
55         .import _pxCurrentTCB\r
56         .export _vEMAC_ISR_Wrapper\r
57 \r
58     .section    P\r
59 \r
60         .macro portSAVE_CONTEXT\r
61 \r
62         ; Save r0 to r14 and pr.\r
63         movml.l r15, @-r15\r
64         \r
65         ; Save mac1, mach and gbr\r
66         sts.l   macl, @-r15\r
67         sts.l   mach, @-r15\r
68         stc.l   gbr, @-r15\r
69         \r
70         ; Get the address of pxCurrentTCB\r
71         mov.l   #_pxCurrentTCB, r0\r
72         \r
73         ; Get the address of pxTopOfStack from the TCB.\r
74         mov.l   @r0, r0\r
75         \r
76         ; Save the stack pointer in pxTopOfStack.\r
77         mov.l   r15, @r0\r
78 \r
79         .endm\r
80 \r
81 ;-----------------------------------------------------------\r
82 \r
83         .macro portRESTORE_CONTEXT\r
84 \r
85         ; Get the address of the pxCurrentTCB variable.\r
86         mov.l   #_pxCurrentTCB, r0\r
87 \r
88         ; Get the address of the task stack from pxCurrentTCB.\r
89         mov.l   @r0, r0\r
90 \r
91         ; Get the task stack itself into the stack pointer. \r
92         mov.l   @r0, r15                \r
93 \r
94         ; Restore system registers.\r
95         ldc.l   @r15+, gbr\r
96         lds.l   @r15+, mach\r
97         lds.l   @r15+, macl\r
98 \r
99         ; Restore r0 to r14 and PR\r
100         movml.l @r15+, r15\r
101         \r
102         ; Pop the SR and PC to jump to the start of the task.\r
103         rte\r
104         nop\r
105 \r
106         .endm\r
107 ;-----------------------------------------------------------\r
108         \r
109 _vEMAC_ISR_Wrapper:\r
110 \r
111         portSAVE_CONTEXT\r
112 \r
113         mov.l   #_vEMAC_ISR_Handler, r0\r
114         jsr             @r0\r
115         nop\r
116 \r
117         portRESTORE_CONTEXT\r
118         \r
119 ;-----------------------------------------------------------\r
120 \r
121         \r
122         .end\r
123                 \r