begriffs open source - cmsis-freertos/blob - Demo/RL78_multiple

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55 ;

56 ; This file defines the RegTest tasks as described at the top of main.c

57 ;

59 ;------------------------------------------------------------------------------

62 ; Functions implemented in this file

63 ;------------------------------------------------------------------------------

65 PUBLIC vRegTest1Task

66 PUBLIC vRegTest2Task

68 ; Functions and variables used by this file

69 ;------------------------------------------------------------------------------

70 EXTERN vRegTestError

71 EXTERN usRegTest1LoopCounter

72 EXTERN usRegTest2LoopCounter

74 ;------------------------------------------------------------------------------

75 ; Fill all the registers with known values, then check that the registers

76 ; contain the expected value. An incorrect value being indicative of an

77 ; error in the context switch mechanism.

78 ;

79 ; Input: NONE

80 ;

81 ; Call: Created as a task.

82 ;

83 ; Output: NONE

84 ;

85 ;------------------------------------------------------------------------------

86 RSEG CODE:CODE

87 vRegTest1Task:

89 ; First fill the registers.

90 MOVW AX, #0x1122

91 MOVW BC, #0x3344

92 MOVW DE, #0x5566

93 MOVW HL, #0x7788

94 MOV CS, #0x01

96 #if __DATA_MODEL__ == __DATA_MODEL_FAR__

98 ; ES is not saved or restored when using the near memory model so only

99 ; test it when using the far model.

100 MOV ES, #0x02

101

102 #endif

103

104 loop1:

105

106 ; Continuously check that the register values remain at their expected

107 ; values. The BRK is to test the yield. This task runs at low priority

108 ; so will also regularly get preempted.

109 BRK

110

111 ; Compare with the expected value.

112 CMPW AX, #0x1122

113 SKZ

114

115 ; Jump over the branch to vRegTestError() if the register contained the

116 ; expected value - otherwise flag an error by executing vRegTestError().

117 BR vRegTestError

118

119 ; Repeat for all the registers.

120 MOVW AX, BC

121 CMPW AX, #0x3344

122 SKZ

123 BR vRegTestError

124 MOVW AX, DE

125 CMPW AX, #0x5566

126 SKZ

127 BR vRegTestError

128 MOVW AX, HL

129 CMPW AX, #0x7788

130 SKZ

131 BR vRegTestError

132 MOV A, CS

133 CMP A, #0x01

134 SKZ

135 BR vRegTestError

136

137 #if __DATA_MODEL__ == __DATA_MODEL_FAR__

138

139 ; ES is not saved or restored when using the near memory model so only

140 ; test it when using the far model.

141 MOV A, ES

142 CMP A, #0x02

143 SKZ

144 BR vRegTestError

145

146 #endif

147

148 ; Indicate that this task is still cycling.

149 INCW usRegTest1LoopCounter

150

151 MOVW AX, #0x1122

152 BR loop1

153

154

155 ;------------------------------------------------------------------------------

156 ; Fill all the registers with known values, then check that the registers

157 ; contain the expected value. An incorrect value being indicative of an

158 ; error in the context switch mechanism.

159 ;

160 ; Input: NONE

161 ;

162 ; Call: Created as a task.

163 ;

164 ; Output: NONE

165 ;

166 ;------------------------------------------------------------------------------

167 RSEG CODE:CODE

168 vRegTest2Task:

169

170 MOVW AX, #0x99aa

171 MOVW BC, #0xbbcc

172 MOVW DE, #0xddee

173 MOVW HL, #0xff12

174 MOV CS, #0x03

175

176 #if __DATA_MODEL__ == __DATA_MODEL_FAR__

177

178 MOV ES, #0x04

179

180 #endif

181

182 loop2:

183 CMPW AX, #0x99aa

184 SKZ

185 BR vRegTestError

186 MOVW AX, BC

187 CMPW AX, #0xbbcc

188 SKZ

189 BR vRegTestError

190 MOVW AX, DE

191 CMPW AX, #0xddee

192 SKZ

193 BR vRegTestError

194 MOVW AX, HL

195 CMPW AX, #0xff12

196 SKZ

197 BR vRegTestError

198 MOV A, CS

199 CMP A, #0x03

200 SKZ

201 BR vRegTestError

202

203 #if __DATA_MODEL__ == __DATA_MODEL_FAR__

204

205 MOV A, ES

206 CMP A, #0x04

207 SKZ

208 BR vRegTestError

209

210 #endif

211

212 ; Indicate that this task is still cycling.

213 INCW usRegTest2LoopCounter

214

215 MOVW AX, #0x99aa

216 BR loop2

217

218

219 END