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The following explains the content of the C language startup program (crt0mr.a30).
4. Incorporate a section definition file [14 in Figure 7.11]
5. Incorporate an include file for MR100 [15 in Figure 7.11]
6.
Incorporate a system ROM area definition file [16 in Figure 7.11]
7.
Incorporate a system RAM area definition file [17 in Figure 7.11]
8.
This is the initialization program __SYS_INITIAL that is activated immediately after a reset.
[55 - 207 in Figure 7.11]
♦ Setting the System Stack pointer [56 in Figure 7.11]
♦ Setting the SB,FB register [61 - 65 in Figure 7.11]
♦
Initial set the C language. [72 - 105 in Figure 7.11]
♦
Setting kernel interrupt mask level [111 in Figure 7.11]
♦
Setting the address of interrupt vector table [112 in Figure 7.11]
♦
Set MR100's system clock interrupt [114-122 in Figure 7.11]
♦
Initial set MR100's system timer [124-132 in Figure 7.11]
9. Initial set parameters inherent in the application [140 in Figure 7.11]
10. Initialize the RAM data used by MR100 [141- 197 in Figure 7.11]
11.
Activate the initial startup task. [201-207 in Figure 7.11]
12.
This is a system clock interrupt handler [235-248 in Figure 7.11]