checkpoint

1 files changed, 28 insertions, 0 deletions

diff --git a/src/sim86/libs/reference_decoder/sim86_memory.h b/src/sim86/libs/reference_decoder/sim86_memory.h
new file mode 100644
index 0000000..4e790dc
--- /dev/null
+++ b/src/sim86/libs/reference_decoder/sim86_memory.h
@@ -0,0 +1,28 @@
+/* ========================================================================
+
+   (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
+   
+   ======================================================================== */
+
+struct segmented_access
+{
+    u8 *Memory;
+    u32 Mask;
+    u16 SegmentBase;
+    u16 SegmentOffset;
+};
+
+static u32 GetHighestAddress(segmented_access SegMem);
+static u32 GetAbsoluteAddressOf(segmented_access SegMem, u16 Offset = 0);
+static segmented_access MoveBaseBy(segmented_access Access, s32 Offset);
+
+static u8 *AccessMemory(segmented_access SegMem, u16 Offset = 0);
+
+static b32 IsValid(segmented_access SegMem);
+static segmented_access FixedMemoryPow2(u32 SizePow2, u8 *Memory);