mirror of
https://github.com/TwilitRealm/dusklight
synced 2026-05-26 15:24:30 -04:00
PJB3005
29 lines
694 B
C++
29 lines
694 B
C++
#include "dusk/offset_ptr.h"
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#include "JSystem/JUtility/JUTAssert.h"
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#if TARGET_PC
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bool OffsetPtr::isRelocated() {
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return value & 0x8000'0000;
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}
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bool OffsetPtr::setBase(void* base) {
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JUT_ASSERT(__LINE__, value != 0);
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if (isRelocated()) {
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// Already relocated, don't touch it again!
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return false;
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}
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ptrdiff_t diff = (u8*)this - (u8*)base;
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ptrdiff_t newDiff = value - diff;
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// Check that it's in range given that we use the 31st bit as a flag.
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if (newDiff < -0x4000'0000 || newDiff > 0x7FFF'FFFF) {
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OSPanic(__FILE__, __LINE__, "Not enough space in StageOffsetPtr!");
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}
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value = newDiff | 0x8000'0000;
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return true;
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}
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#endif
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