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45 lines
873 B
C
45 lines
873 B
C
3 years ago
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#include "kernel.h"
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#include "ecall.h"
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#include "sched.h"
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#include "mutex.h"
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void thread_1();
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extern ProcessControlBlock processes[PROCESS_COUNT];
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extern void init()
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{
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// set up processes
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processes[0].pid = 1;
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processes[0].pc = (int) thread_1;
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processes[0].regs[2] = 128;
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processes[0].status = PROC_RDY;
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processes[0].requested_lock = 0;
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processes[1].pid = 2;
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processes[1].pc = (int) thread_1;
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processes[1].regs[2] = 256;
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processes[1].status = PROC_RDY;
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processes[1].requested_lock = 0;
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scheduler_run_next();
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}
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void thread_1() {
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int a = 0; // a4
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int b = 0; // a5
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while (true) {
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a++;
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if (a > 1000000) {
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__asm__ __volatile__ (
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"ebreak"
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);
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b++;
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a = 0;
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}
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if (b > 1000000) {
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b = 0;
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}
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}
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}
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