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-rw-r--r--src/video_core/regs.h62
1 files changed, 20 insertions, 42 deletions
diff --git a/src/video_core/regs.h b/src/video_core/regs.h
index f25edde27..e38ab4333 100644
--- a/src/video_core/regs.h
+++ b/src/video_core/regs.h
@@ -45,46 +45,31 @@ namespace Pica {
#endif // _MSC_VER
struct Regs {
- INSERT_PADDING_WORDS(0x10);
- u32 trigger_irq;
- INSERT_PADDING_WORDS(0x2f);
- RasterizerRegs rasterizer;
- TexturingRegs texturing;
- FramebufferRegs framebuffer;
- LightingRegs lighting;
- PipelineRegs pipeline;
- ShaderRegs gs;
- ShaderRegs vs;
- INSERT_PADDING_WORDS(0x20);
+ static constexpr size_t NUM_REGS = 0x300;
+
+ union {
+ struct {
+ INSERT_PADDING_WORDS(0x10);
+ u32 trigger_irq;
+ INSERT_PADDING_WORDS(0x2f);
+ RasterizerRegs rasterizer;
+ TexturingRegs texturing;
+ FramebufferRegs framebuffer;
+ LightingRegs lighting;
+ PipelineRegs pipeline;
+ ShaderRegs gs;
+ ShaderRegs vs;
+ INSERT_PADDING_WORDS(0x20);
+ };
+ std::array<u32, NUM_REGS> reg_array;
+ };
// Map register indices to names readable by humans
- // Used for debugging purposes, so performance is not an issue here
static std::string GetCommandName(int index);
-
- static constexpr size_t NumIds() {
- return sizeof(Regs) / sizeof(u32);
- }
-
- const u32& operator[](int index) const {
- const u32* content = reinterpret_cast<const u32*>(this);
- return content[index];
- }
-
- u32& operator[](int index) {
- u32* content = reinterpret_cast<u32*>(this);
- return content[index];
- }
-
-private:
- /*
- * Most physical addresses which Pica registers refer to are 8-byte aligned.
- * This function should be used to get the address from a raw register value.
- */
- static inline u32 DecodeAddressRegister(u32 register_value) {
- return register_value * 8;
- }
};
+static_assert(sizeof(Regs) == Regs::NUM_REGS * sizeof(u32), "Regs struct has wrong size");
+
// TODO: MSVC does not support using offsetof() on non-static data members even though this
// is technically allowed since C++11. This macro should be enabled once MSVC adds
// support for that.
@@ -154,11 +139,4 @@ ASSERT_REG_POSITION(vs, 0x2b0);
#undef ASSERT_REG_POSITION
#endif // !defined(_MSC_VER)
-// The total number of registers is chosen arbitrarily, but let's make sure it's not some odd value
-// anyway.
-static_assert(sizeof(Regs) <= 0x300 * sizeof(u32),
- "Register set structure larger than it should be");
-static_assert(sizeof(Regs) >= 0x300 * sizeof(u32),
- "Register set structure smaller than it should be");
-
} // namespace Pica