diff options
| author | Raymaekers Luca <luca@spacehb.net> | 2025-10-24 12:58:52 +0200 |
|---|---|---|
| committer | Raymaekers Luca <luca@spacehb.net> | 2025-10-24 12:58:52 +0200 |
| commit | 856fd58549e5bf50e800a665f9deb27d967df2fb (patch) | |
| tree | 6950210e5ae3618b501a7045f10f8fc06dd903df /src/code/reference_decoder/sim86_memory.cpp | |
| parent | d8b3ca9d02377cf04a09e0f518a3385b7324bc4d (diff) | |
checkpoint
Diffstat (limited to 'src/code/reference_decoder/sim86_memory.cpp')
| -rw-r--r-- | src/code/reference_decoder/sim86_memory.cpp | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/src/code/reference_decoder/sim86_memory.cpp b/src/code/reference_decoder/sim86_memory.cpp deleted file mode 100644 index 1d58ede..0000000 --- a/src/code/reference_decoder/sim86_memory.cpp +++ /dev/null @@ -1,66 +0,0 @@ -/* ======================================================================== - - (C) Copyright 2023 by Molly Rocket, Inc., All Rights Reserved. - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Please see https://computerenhance.com for more information - - ======================================================================== */ - -static u32 GetHighestAddress(segmented_access SegMem) -{ - u32 Result = SegMem.Mask; - return Result; -} - -static u32 GetAbsoluteAddressOf(u32 Mask, u16 SegmentBase, u16 SegmentOffset, u16 AdditionalOffset) -{ - u32 Result = (((u32)SegmentBase << 4) + (u32)(SegmentOffset + AdditionalOffset)) & Mask; - return Result; -} - -static u32 GetAbsoluteAddressOf(segmented_access SegMem, u16 Offset) -{ - u32 Result = GetAbsoluteAddressOf(SegMem.Mask, SegMem.SegmentBase, SegMem.SegmentOffset, Offset); - return Result; -} - -static segmented_access MoveBaseBy(segmented_access Access, s32 Offset) -{ - Access.SegmentOffset += Offset; - - segmented_access Result = Access; - - Result.SegmentBase += (Result.SegmentOffset >> 4); - Result.SegmentOffset &= 0xf; - - assert(GetAbsoluteAddressOf(Result, 0) == GetAbsoluteAddressOf(Access, 0)); - - return Result; -} - -static u8 *AccessMemory(segmented_access SegMem, u16 Offset) -{ - u32 AbsAddr = GetAbsoluteAddressOf(SegMem, Offset); - u8 *Result = SegMem.Memory + AbsAddr; - return Result; -} - -static b32 IsValid(segmented_access SegMem) -{ - b32 Result = (SegMem.Mask != 0); - return Result; -} - -static segmented_access FixedMemoryPow2(u32 SizePow2, u8 *Memory) -{ - segmented_access Result = {}; - - Result.Memory = Memory; - Result.Mask = (1 << SizePow2) - 1; - - return Result; -} |
