Implement VGA simulation

1 files changed, 0 insertions, 55 deletions

diff --git a/tb/mem.cpp b/tb/mem.cpp
deleted file mode 100644
index 6eeb7df..0000000
--- a/tb/mem.cpp
+++ /dev/null
@@ -1,55 +0,0 @@
-#include <cassert>
-#include <cstdint>
-#include <memory>
-
-#include "mem.hpp"
-
-namespace taller::avalon
-{
-	mem::mem(std::uint32_t base, std::uint32_t size)
-	: base(base), mask(~(size - 1)),
-	  block(std::make_unique<std::uint32_t[]>(size >> 2))
-	{
-		assert(!(size & 0b11) && !((size - 1) & size));
-	}
-
-	bool mem::read(std::uint32_t addr, std::uint32_t &data)
-	{
-		data = block[addr];
-		return ready();
-	}
-
-	bool mem::write(std::uint32_t addr, std::uint32_t data, unsigned byte_enable)
-	{
-		std::uint32_t bytes = 0;
-
-		if(byte_enable & 0b1000)
-		{
-			bytes |= 0xff << 24;
-		}
-
-		if(byte_enable & 0b0100)
-		{
-			bytes |= 0xff << 16;
-		}
-
-		if(byte_enable & 0b0010)
-		{
-			bytes |= 0xff << 8;
-		}
-
-		if(byte_enable & 0b0001)
-		{
-			bytes |= 0xff;
-		}
-
-		block[addr] = (data & bytes) | (block[addr] & ~bytes);
-		return ready();
-	}
-
-	bool mem::ready() noexcept
-	{
-		count = count > 0 ? count - 1 : 2;
-		return count == 0;
-	}
-}