#include "pcb.h"

// static const uint8_t * firstProcessAddress = (uint8_t *) 0x18000000;
// static const long stackSize = 0x4000000; // 2^26
// static const uint8_t * lastProcessAddress = (uint8_t *) 0x10000001; // 2^29 - 1

// int activeProcesses = 0, currentProcess = -1;
// uint64_t priority0[MAX_PROCESSES];
// uint64_t priority1[MAX_PROCESSES];
// uint64_t priority2[MAX_PROCESSES];

// void cleanProcesses() {
//     activeProcesses = 0;
//     currentProcess = -1;
// }

// void newProcess(void (*fn)) {
//     if (firstProcessAddress - activeProcesses * stackSize + stackSize <= lastProcessAddress) return;
//     _initialize_stack_frame(fn, firstProcessAddress - activeProcesses * stackSize);
// }

// void newStack(uint64_t rsp) {
//     priority0[activeProcesses++] = rsp;
// }

// uint64_t preserveStack(uint64_t rsp) {
//     if (currentProcess != -1) {
//         priority0[currentProcess] = rsp;
//     }
//     if (++currentProcess >= activeProcesses) currentProcess = 0;
//     if (activeProcesses == 0) return 0;
//     return priority0[currentProcess];
// }

static uint64_t sampleRSP;

void saveSampleRSP(uint64_t rsp) {
    sampleRSP = rsp;
}

uint64_t getSampleRSP() {
    return sampleRSP;
}