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Finished Virtual Memory Manager!!! Paging etc. now works perfectly*

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*i have no idea if it works right, but it doesn't seem to be broken
This commit is contained in:
Tom-on
2024-05-23 20:53:15 +02:00
parent 2072c8fe53
commit e728571393
8 changed files with 414 additions and 178 deletions
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include/memory/physical.h
+13 -7
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@@ -47,14 +47,20 @@ int32_t findFreeBlocks(uint32_t blockCount) {
uint32_t block = 1 << j;
if (!(memoryMap[i] & block)) {
uint32_t startBlock = i * 32 + block;
uint32_t freeBlocks = 0;
// uint32_t startBlock = i * 32 + block;
// uint32_t freeBlocks = 0;
for (uint32_t count = 0; count <= blockCount; count++) {
if (!testBlock(startBlock + count)) {
freeBlocks++;
for (uint32_t count = i, freeBlocks = 0; count < blockCount; count++) {
if (j + count > 31 && i + 1 <= maxBlocks / 32) {
if (!(memoryMap[i+1] & (1 << (j + count)))) {
freeBlocks++;
}
} else {
if (!(memoryMap[i] & (1 << (j + count)))) {
freeBlocks++;
}
}
if (freeBlocks == blockCount) {
return i * 32 + j;
}
@@ -67,7 +73,7 @@ int32_t findFreeBlocks(uint32_t blockCount) {
return -1; // No free memory found :/
}
void setupMemoryManager(uint32_t startAddress, uint32_t size) {
void setupPhysicalMemoryManager(uint32_t startAddress, uint32_t size) {
memoryMap = (uint32_t*)startAddress;
maxBlocks = size / BLOCK_SIZE;
usedBlocks = maxBlocks;