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1 /*\r
2         FreeRTOS.org V5.3.1 - Copyright (C) 2003-2009 Richard Barry.\r
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50 */\r
51 \r
52 #ifndef PORTASM_H\r
53 #define PORTASM_H\r
54 \r
55 portSAVE_CONTEXT macro\r
56 \r
57                 IMPORT pxCurrentTCB\r
58                 IMPORT usCriticalNesting\r
59 \r
60                 /* Save the remaining registers. */\r
61                 push    r4\r
62                 push    r5\r
63                 push    r6\r
64                 push    r7\r
65                 push    r8\r
66                 push    r9\r
67                 push    r10\r
68                 push    r11\r
69                 push    r12\r
70                 push    r13\r
71                 push    r14\r
72                 push    r15\r
73                 mov.w   &usCriticalNesting, r14\r
74                 push    r14\r
75                 mov.w   &pxCurrentTCB, r12\r
76                 mov.w   r1, 0(r12)\r
77                 endm\r
78 /*-----------------------------------------------------------*/\r
79                 \r
80 portRESTORE_CONTEXT macro\r
81                 mov.w   &pxCurrentTCB, r12\r
82                 mov.w   @r12, r1\r
83                 pop             r15\r
84                 mov.w   r15, &usCriticalNesting\r
85                 pop             r15\r
86                 pop             r14\r
87                 pop             r13\r
88                 pop             r12\r
89                 pop             r11\r
90                 pop             r10\r
91                 pop             r9\r
92                 pop             r8\r
93                 pop             r7\r
94                 pop             r6\r
95                 pop             r5\r
96                 pop             r4\r
97 \r
98                 /* The last thing on the stack will be the status register.\r
99         Ensure the power down bits are clear ready for the next\r
100         time this power down register is popped from the stack. */\r
101                 bic.w   #0xf0,0(SP)\r
102 \r
103                 reti\r
104                 endm\r
105 /*-----------------------------------------------------------*/\r
106 \r
107 #endif\r
108 \r