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Implement GPUSTAT and update IOPort design

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Jaby
2022-09-07 21:45:28 +02:00
parent a2532b03fc
commit d9da876bab
7 changed files with 168 additions and 72 deletions
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66
include/PSX/System/IOPorts/GPU_IO.hpp
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@@ -4,9 +4,71 @@
namespace GPU {
namespace Port {
struct __no_align Command : public ComplexBitMap<uint32_t> {
enum struct SemiTransparency {
B_Half_add_F_Half = 0,
B_add_F = 1,
B_sub_F = 2,
B_add_F_Quarter = 3,
};
enum struct TexturePageColor {
_4bit = 0,
_8bit = 1,
_15bit = 2,
};
enum struct HorizontalResolution {
_256 = 0,
_320 = 1,
_512 = 2,
_640 = 3,
};
enum struct VerticalResolution {
_240 = 0,
_480 = 1
};
enum struct DMADirection {
Off = 0,
Unknown = 1,
CPU2GPU = 2,
GPU2CPU = 3,
};
struct __no_align Command : public ComplexBitMap<uint32_t> {
};
struct __no_align GPUStatusRegister : public ComplexBitMap<uint32_t> {
static constexpr auto DrawingOddLinesInterlaced = Bit<uint32_t>(31);
static constexpr auto DMADirectionValue = BitRange<DMADirection>::from_to(29, 30);
static constexpr auto DMAReady = Bit<uint32_t>(28);
static constexpr auto VRAMtoCPUtransferReay = Bit<uint32_t>(27);
static constexpr auto GP0ReadyForCMD = Bit<uint32_t>(26);
static constexpr auto FifoNotFull = Bit<uint32_t>(25); // Only for Fifo
static constexpr auto InterruptRequest = Bit<uint32_t>(24);
static constexpr auto DisplayDisabled = Bit<uint32_t>(23);
static constexpr auto VerticalInterlaceOn = Bit<uint32_t>(22);
static constexpr auto DisplayAreaColorDepth24bit = Bit<uint32_t>(21);
static constexpr auto VideoModePal = Bit<uint32_t>(20);
static constexpr auto VerticalResolutionValue = BitRange<VerticalResolution>::from_to(19, 19);
static constexpr auto HorizontalResolutionValue = BitRange<HorizontalResolution>::from_to(17, 18);
static constexpr auto HorizontalResolution368 = Bit<uint32_t>(16);
static constexpr auto TexturesDisabled = Bit<uint32_t>(15);
static constexpr auto NotDrawingMaskedPixels = Bit<uint32_t>(12);
static constexpr auto MaskBitSetDuringDrawEnabled = Bit<uint32_t>(11);
static constexpr auto DrawingToDisplayAreadAllowed = Bit<uint32_t>(10);
static constexpr auto DitherEnabled = Bit<uint32_t>(9);
static constexpr auto TexturePageColorValue = BitRange<TexturePageColor>::from_to(7, 8);
static constexpr auto SemiTransparencyValue = BitRange<SemiTransparency>::from_to(5, 6);
static constexpr auto TexturePageY = BitRange<uint32_t>::from_to(4, 4); // N*256
static constexpr auto TexturePageX = BitRange<uint32_t>::from_to(0, 3); // N*64
static constexpr auto VerticalResolution480 = Bit<uint32_t>(19);
static constexpr auto TexturePageY256 = Bit<uint32_t>(4);
};
__declare_io_port_global_const(GPUStatusRegister, GPUSTAT, 0x1F801814);
}
}