mirror of
https://github.com/zoriya/ComSquare.git
synced 2026-06-07 19:50:48 +00:00
moving PPU Registers into separate file and some name cleanup
This commit is contained in:
Clément Le Bihan
+8
-8
@@ -571,14 +571,14 @@ namespace ComSquare::PPU
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// the starting palette index isn't implemented
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switch (this->_registers._bgmode.bgMode) {
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case 0:
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this->addToMainSubScreen<0, 15>(this->_backgrounds[BgName::bg4NoPriority]);
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this->addToMainSubScreen<10, 16>(this->_backgrounds[BgName::bg3NoPriority]);
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this->addToMainSubScreen<0, 15>(this->_backgrounds[BgName::Background4]);
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this->addToMainSubScreen<10, 16>(this->_backgrounds[BgName::Background3]);
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//sprites priority 0
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// this->addToMainSubScreen(this->_backgrounds[BgName::bg4Priority]);
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// this->addToMainSubScreen(this->_backgrounds[BgName::bg3Priority]);
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//sprites priority 1
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this->addToMainSubScreen<20, 35>(this->_backgrounds[BgName::bg2NoPriority]);
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this->addToMainSubScreen<30, 36>(this->_backgrounds[BgName::bg1NoPriority]);
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this->addToMainSubScreen<20, 35>(this->_backgrounds[BgName::Background2]);
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this->addToMainSubScreen<30, 36>(this->_backgrounds[BgName::Background1]);
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//sprites priority 2
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// this->addToMainSubScreen(this->_backgrounds[BgName::bg2Priority]);
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// this->addToMainSubScreen(this->_backgrounds[BgName::bg1Priority]);
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@@ -586,15 +586,15 @@ namespace ComSquare::PPU
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break;
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case 1:
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if (!this->_registers._bgmode.mode1Bg3PriorityBit)
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this->addToMainSubScreen<0, 5>(this->_backgrounds[BgName::bg3NoPriority]);
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this->addToMainSubScreen<0, 5>(this->_backgrounds[BgName::Background3]);
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else
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this->addToMainSubScreen<0, 30>(this->_backgrounds[BgName::bg3NoPriority]);
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this->addToMainSubScreen<0, 30>(this->_backgrounds[BgName::Background3]);
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//sprites priority 0
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// if (!this->_registers._bgmode.mode1Bg3PriorityBit)
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// this->addToMainSubScreen(this->_backgrounds[BgName::bg3Priority]);
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//sprites priority 1
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this->addToMainSubScreen<10, 25>(this->_backgrounds[BgName::bg2NoPriority]);
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this->addToMainSubScreen<20, 26>(this->_backgrounds[BgName::bg1NoPriority]);
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this->addToMainSubScreen<10, 25>(this->_backgrounds[BgName::Background2]);
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this->addToMainSubScreen<20, 26>(this->_backgrounds[BgName::Background1]);
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//sprites priority 2
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// this->addToMainSubScreen(this->_backgrounds[BgName::bg2Priority]);
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// this->addToMainSubScreen(this->_backgrounds[BgName::bg1Priority]);
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+6
-515
@@ -12,7 +12,8 @@
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#include "Models/Vector2.hpp"
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#include <algorithm>
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#include "Background.hpp"
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#include "PPUUtils.hpp"
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#include "PPU/PPUUtils.hpp"
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#include "PPU/PPURegisters.hpp"
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#ifdef DEBUGGER_ENABLED
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#include "Debugger/TileViewer/RAMTileRenderer.hpp"
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@@ -35,520 +36,10 @@ namespace ComSquare::PPU
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class Background;
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//! @brief Enum to access more easily the ppu background array
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enum BgName {
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bg1NoPriority = 0,
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bg2NoPriority = 1,
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bg3NoPriority = 2,
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bg4NoPriority = 3
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};
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enum PpuRegisters {
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//! @brief INIDISP Register (F-blank and Brightness)
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inidisp = 0x00,
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//! @brief OBSEL Register (Object Size and Character Address)
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obsel = 0x01,
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//! @brief OAMADDL (OAM Address low byte)
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oamaddl = 0x02,
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//! @brief OAMADDH (OAM Address high bit and Obj Priority)
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oamaddh = 0x03,
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//! @brief OAMDATA (Data for OAM write)
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oamdata = 0x04,
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//! @brief BGMODE (BG Mode and Character Size)
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bgmode = 0x05,
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//! @brief MOSAIC (Screen Pixelation)
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mosaic = 0x06,
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//! @brief BG1SC (BG1 Tilemap Address and Size)
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bg1sc = 0x07,
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//! @brief BG2SC (BG2 Tilemap Address and Size)
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bg2sc = 0x08,
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//! @brief BG3SC (BG3 Tilemap Address and Size)
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bg3sc = 0x09,
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//! @brief BG4SC (BG4 Tilemap Address and Size)
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bg4sc = 0x0A,
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//! @brief BG12NBA (BG1 and 2 Chr Address)
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bg12nba = 0x0B,
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//! @brief BG34NBA (BG3 and 4 Chr Address)
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bg34nba = 0x0C,
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//! @brief BG1HOFS (BG1 Horizontal Scroll)
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//! @brief M7HOFS (Mode 7 BG Horizontal Scroll)
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//! @info When bg mode is 7 the register is used as M7HOFS
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bg1hofs = 0x0D,
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//! @brief BG1VOFS (BG1 Vertical Scroll)
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//! @brief M7VOFS (Mode 7 BG Vertical Scroll)
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//! @info When bg mode is 7 the register is used as M7VOFS
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bg1vofs = 0x0E,
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//! @brief BG2HOFS (BG2 Horizontal Scroll)
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bg2hofs = 0x0F,
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//! @brief BG2VOFS (BG2 Vertical Scroll)
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bg2vofs = 0x10,
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//! @brief BG3HOFS (BG3 Horizontal Scroll)
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bg3hofs = 0x11,
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//! @brief BG3VOFS (BG3 Vertical Scroll)
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bg3vofs = 0x12,
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//! @brief BG4HOFS (BG4 Horizontal Scroll)
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bg4hofs = 0x13,
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//! @brief BG4VOFS (BG4 Vertical Scroll)
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bg4vofs = 0x14,
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//! @brief VMAIN (Video Port Control)
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vmain = 0x15,
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//! @brief VMADDL (VRAM Address low byte)
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vmaddl = 0x16,
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//! @brief VMADDH (VRAM Address high byte)
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vmaddh = 0x17,
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//! @brief VMDATAL (VRAM Data Write low byte)
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vmdatal = 0x18,
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//! @brief VMDATAH (VRAM Data Write high byte)
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vmdatah = 0x19,
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//! @brief M7SEL (Mode 7 Settings)
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m7sel = 0x1A,
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//! @brief M7A (Mode 7 Matrix A) also used with $2134/6
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m7a = 0x1B,
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//! @brief M7B (Mode 7 Matrix B) also used with $2134/6
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m7b = 0x1C,
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//! @brief M7C (Mode 7 Matrix C)
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m7c = 0x1D,
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//! @brief M7D (Mode 7 Matrix D)
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m7d = 0x1E,
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//! @brief M7X (Mode 7 Center X)
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m7x = 0x1F,
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//! @brief M7Y (Mode 7 Center Y)
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m7y = 0x20,
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//! @brief CGADD (CGRAM Address)
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cgadd = 0x21,
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//! @brief CGDATA (CGRAM Data write)
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cgdata = 0x22,
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//! @brief W12SEL (Window Mask Settings for BG1 and BG2)
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w12sel = 0x23,
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//! @brief W34SEL (Window Mask Settings for BG3 and BG4)
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w34sel = 0x24,
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//! @brief WOBJSEL (Window Mask Settings for OBJ and Color Window)
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wobjsel = 0x25,
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//! @brief WH0 (Window 1 Left Position)
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wh0 = 0x26,
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//! @brief WH1 (Window 1 Right Position)
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wh1 = 0x27,
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//! @brief WH2 (Window 2 Left Position)
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wh2 = 0x28,
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//! @brief WH3 (Window 2 Right Position)
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wh3 = 0x29,
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//! @brief WBGLOG (Window mask logic for BGs)
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wbjlog = 0x2A,
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//! @brief WOBJLOG (Window mask logic for OBJs and Color Window)
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wobjlog = 0x2B,
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//! @brief TM (Main Screen Designation)
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tm = 0x2C,
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//! @brief TS (Subscreen Designation)
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ts = 0x2D,
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//! @brief TMW (Window Mask Designation for the Main Screen)
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tmw = 0x2E,
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//! @brief TSW (Window Mask Designation for the Subscreen)
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tsw = 0x2F,
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//! @brief CGWSEL (Color Addition Select)
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cgwsel = 0x30,
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//! @brief CGADSUB (Color math designation)
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cgadsub = 0x31,
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//! @brief COLDATA (Fixed Color Data)
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coldata = 0x32,
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//! @brief SETINI (Screen Mode/Video Select)
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setini = 0x33,
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//! @brief MPYL (Multiplication Result low byte)
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mpyl = 0x34,
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//! @brief MPYM (Multiplication Result middle byte)
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mpym = 0x35,
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//! @brief MPYH (Multiplication Result high byte)
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mpyh = 0x36,
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//! @brief SLHV (Software Latch for H/V Counter)
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slhv = 0x37,
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//! @brief OAMDATAREAD (Data for OAM read)
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oamdataread = 0x38,
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//! @brief VMDATALREAD (VRAM Data Read low byte)
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vmdatalread = 0x39,
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//! @brief VMDATAHREAD (VRAM Data Read high byte)
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vmdatahread = 0x3A,
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//! @brief CGDATAREAD (CGRAM Data read)
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cgdataread = 0x3B,
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//! @brief OPHCT (Horizontal Scanline Location)
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ophct = 0x3C,
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//! @brief OPVCT (Vertical Scanline Location)
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opvct = 0x3D,
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//! @brief STAT77 (PPU Status Flag and Version)
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stat77 = 0x3E,
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//! @brief STAT78 (PPU Status Flag and Version)
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stat78 = 0x3F
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};
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struct Registers {
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//! @brief INIDISP Register (F-blank and Brightness)
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union {
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struct {
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//! @brief Store the brightness value (F = max, 0 = off)
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uint8_t brightness: 4;
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uint8_t _: 3;
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//! @brief Store the FBlank status
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uint8_t fblank: 1;
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};
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uint8_t raw = 0;
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} _inidisp;
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//! @brief OBSEL Register (Object Size and Character Address)
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union {
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struct {
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//! @brief Stores the location of the first sprite table
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uint8_t nameBaseSelect: 3;
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//! @brief Stores the offset of the second sprite table
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uint8_t nameSelect: 2;
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//! @brief Stores the resolution preset of the sprites
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uint8_t objectSize: 3;
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};
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uint8_t raw = 0;
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} _obsel;
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//! @brief OAMADD Register (OAM Address and Obj Priority)
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union {
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struct {
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//! @brief Stores the address to write with OAMDATA register
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uint16_t oamAddress: 9;
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uint16_t _: 6;
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//! @brief When Obj Priority activation bit is set, an Obj other than Sprite 0 may be given priority
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uint16_t objPriorityActivationBit: 1;
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};
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struct {
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//! @brief Stores the data written on the OAMADDL register
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uint16_t oamaddl: 8;
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//! @brief Stores the data written on the OAMADDH register
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uint16_t oamaddh: 8;
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};
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uint16_t raw = 0;
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} _oamadd;
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//! @brief OAMDATA Register (Data for OAM write)
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uint8_t _oamdata = 0;
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//! @brief BGMODE Register (OAM Address and Obj Priority)
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union {
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struct {
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//! @brief Stores the current BG Mode (0 - 7)
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uint8_t bgMode: 3;
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//! @brief When Mode 1 BG3 priority bit is set the BG3 is draw
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uint8_t mode1Bg3PriorityBit: 1;
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//! @brief When The bit is set character size will 16x16 otherwise it is 8x8
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uint8_t characterSizeBg1: 1;
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//! @brief When The bit is set character size will 16x16 otherwise it is 8x8
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uint8_t characterSizeBg2: 1;
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//! @brief When The bit is set character size will 16x16 otherwise it is 8x8
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uint8_t characterSizeBg3: 1;
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//! @brief When The bit is set character size will 16x16 otherwise it is 8x8
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uint8_t characterSizeBg4: 1;
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};
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uint8_t raw = 0;
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} _bgmode;
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//! @brief MOSAIC Register (Screen Pixelation)
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union {
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struct {
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//! @brief Apply mosaic to the BG1
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uint8_t affectBg1: 1;
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//! @brief Apply mosaic to the BG2
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uint8_t affectBg2: 1;
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//! @brief Apply mosaic to the BG3
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uint8_t affectBg3: 1;
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//! @brief Apply mosaic to the BG4
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uint8_t affectBg4: 1;
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//! @brief Stores the pixel size (0 = 1x1, F = 16x16)
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uint8_t pixelSize: 4;
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};
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uint8_t raw = 0;
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} _mosaic;
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//! @brief BGSC Registers (BG Tilemap Address and Size)
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union {
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struct {
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//! @brief When tilemap horizontal mirroring bit is set the tilemap is mirrored horizontally
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uint8_t tilemapHorizontalMirroring: 1;
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//! @brief When tilemap vertically mirroring bit is set the tilemap is mirrored vertically
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uint8_t tilemapVerticalMirroring: 1;
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//! @brief Address of the tilemap Address (0, 0)
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uint8_t tilemapAddress: 6;
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};
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uint8_t raw = 0;
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} _bgsc[4];
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//! @brief BGNBA Registers (BG1/2/3/4 Chr Address)
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union {
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struct {
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//! @brief The address let us know where to search for BG1/3 characters
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uint8_t baseAddressBg1a3: 4;
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//! @brief The address let us know where to search for BG2/4 characters
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uint8_t baseAddressBg2a4: 4;
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};
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uint8_t raw = 0;
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} _bgnba[2];
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//! @brief BGXXOFS Register (BG1/2/3/4 Horizontal and Vertical Scrolls)
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union {
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struct {
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uint16_t offsetBg: 10;
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uint16_t _ : 6;
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};
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uint16_t raw = 0;
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} _bgofs[8];
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//! @brief M7HOFS Register (Mode 7 BG Horizontal Scroll)
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//! @brief M7VOFS Register (Mode 7 BG Vertical Scroll)
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union {
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struct {
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uint16_t offsetBg : 13;
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uint16_t _ : 3;
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};
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uint16_t raw = 0;
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} _m7ofs[2];
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//! @brief VMAIN Register (Video Port Control)
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union {
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struct {
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uint8_t incrementAmount: 2;
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uint8_t addressRemapping: 2;
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uint8_t _ : 3;
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uint8_t incrementMode: 1;
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};
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uint8_t raw = 0;
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} _vmain;
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//! @brief Store the real value of the increment Amount (1, 32, 128) instead of 0,1 or 2
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uint8_t _incrementAmount = 1;
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//! @brief VMADD Register (VRAM Address)
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union {
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struct {
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uint16_t vmaddl: 8;
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uint16_t vmaddh: 8;
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};
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uint16_t vmadd = 0;
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} _vmadd;
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//! @brief VMDATA Register (VRAM Data Write)
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union {
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struct {
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uint16_t vmdatal: 8;
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uint16_t vmdatah: 8;
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};
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uint16_t vmdata = 0;
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} _vmdata;
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//! @brief TODO M7SEL Register (Mode 7 Settings)
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union {
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struct {
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uint8_t horizontalMirroring: 1;
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uint8_t verticalMirroring: 1;
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uint8_t _: 4;
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uint8_t emptySpaceFill: 1;
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uint8_t playingFieldSize: 1;
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};
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uint8_t raw = 0;
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} _m7sel;
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//! @brief M7A M7B M7C M7C registers, M7A and M7B are also used with ($2134/6) (multiplactions registers)
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union {
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struct {
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uint16_t m7l: 8;
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uint16_t m7h: 8;
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};
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uint16_t m7 = 0;
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} _m7[4];
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// <to work>
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//! @brief M7X Register (Mode 7 Center X)
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union { // Not sure if it is done correctly
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struct {
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uint16_t _: 3;
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uint16_t value: 13;
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};
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uint16_t raw = 0;
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} _m7x;
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//! @brief M7Y Register (Mode 7 Center Y)
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union { // Not sure if it is done correctly
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struct {
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uint16_t _: 3;
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uint16_t value: 13;
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};
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uint16_t raw = 0;
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} _m7y;
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//! @brief CGADD Register (CGRAM Address)
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uint8_t _cgadd = 0;
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//! @brief CGDATA Register (CGRAM Data write)
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union {
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struct {
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uint16_t red: 5;
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uint16_t green: 5;
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uint16_t blue: 5;
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uint16_t _: 1;
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};
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struct {
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uint16_t cgdatal: 8;
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uint16_t cgdatah: 8;
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};
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uint16_t raw = 0;
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} _cgdata;
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//! @brief This bool is used for writing either the low byte of the data (first call) or the high byte of the data (second call)
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//! @info This bool is set to True when writing to $2121 (CGADD)
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bool _isLowByte = false;
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//! @brief W12SEL - W34SEL Registers (Window Mask Settings for BGs) and WOBJSEL Register (Window Mask Settings for OBJ and Color Window)
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union {
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struct {
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uint8_t enableWindow2ForBg2Bg4Color: 1;
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uint8_t window2InversionForBg2Bg4Color: 1;
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uint8_t enableWindow1ForBg2Bg4Color: 1;
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uint8_t window1InversionForBg2Bg4Color: 1;
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uint8_t enableWindow2ForBg1Bg3Obj: 1;
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uint8_t window2InversionForBg1Bg3Obj: 1;
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uint8_t enableWindow1ForBg1Bg3Obj: 1;
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uint8_t window1InversionForBg1Bg3Obj: 1;
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};
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uint8_t raw = 0;
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} _wsel[3];
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//! @brief WH0 Register (Window 1 Left Position)
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//! @brief WH1 Register (Window 1 Right Position)
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//! @brief WH2 Register (Window 2 Left Position)
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||||
//! @brief WH3 Register (Window 2 Right Position)
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||||
uint8_t _wh[4] = {0};
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||||
//! @brief WBGLOG Register (Window mask logic for BGs)
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||||
union {
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||||
struct {
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||||
uint8_t maskLogicBg4: 2;
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||||
uint8_t maskLogicBg3: 2;
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||||
uint8_t maskLogicBg2: 2;
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uint8_t maskLogicBg1: 2;
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||||
};
|
||||
uint8_t raw = 0;
|
||||
} _wbglog;
|
||||
//! @brief WOBJLOG Register (Window mask logic for OBJs and Color Window)
|
||||
union {
|
||||
struct {
|
||||
uint8_t maskLogicObj: 2;
|
||||
uint8_t maskLogicColor: 2;
|
||||
uint8_t _: 4;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _wobjlog;
|
||||
//! @brief TM - TS Registers (Main & Sub Screen Designation)
|
||||
union {
|
||||
struct {
|
||||
uint8_t enableWindowDisplayBg1: 1;
|
||||
uint8_t enableWindowDisplayBg2: 1;
|
||||
uint8_t enableWindowDisplayBg3: 1;
|
||||
uint8_t enableWindowDisplayBg4: 1;
|
||||
uint8_t enableWindowDisplayObj: 1;
|
||||
uint8_t _: 3;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _t[2];
|
||||
//! @brief TMW - TSW Registers (Window Mask Designation for the Main/Sub Screen)
|
||||
union {
|
||||
struct {
|
||||
uint8_t enableWindowMaskingBg1: 1;
|
||||
uint8_t enableWindowMaskingBg2: 1;
|
||||
uint8_t enableWindowMaskingBg3: 1;
|
||||
uint8_t enableWindowMaskingBg4: 1;
|
||||
uint8_t enableWindowMaskingObj: 1;
|
||||
uint8_t _: 3;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _tw[2];
|
||||
//! @brief CGWSEL Register (Color Addition Select)
|
||||
union {
|
||||
struct {
|
||||
uint8_t directColorMode: 1;
|
||||
uint8_t addSubscreen: 1;
|
||||
uint8_t _: 2;
|
||||
uint8_t preventColorMath: 2;
|
||||
uint8_t clipColorToBlackBeforeMath: 2;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _cgwsel;
|
||||
//! @brief CGADSUB Register (Color Math designation)
|
||||
union {
|
||||
struct {
|
||||
uint8_t enableColorMathBg1: 1;
|
||||
uint8_t enableColorMathBg2: 1;
|
||||
uint8_t enableColorMathBg3: 1;
|
||||
uint8_t enableColorMathBg4: 1;
|
||||
uint8_t enableColorMathObj: 1;
|
||||
uint8_t enableColorMathBackdrop: 1;
|
||||
uint8_t halfColorMath: 1;
|
||||
uint8_t addSubtractSelect: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _cgadsub;
|
||||
//! @brief COLDATA Register (Fixed Color Data)
|
||||
union {
|
||||
struct {
|
||||
uint8_t colorIntensity: 5;
|
||||
uint8_t red: 1;
|
||||
uint8_t green: 1;
|
||||
uint8_t blue: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _coldata;
|
||||
//! @brief SETINI Register (Screen Mode/Video Select)
|
||||
union {
|
||||
struct {
|
||||
uint8_t screenInterlace: 1;
|
||||
uint8_t objInterlace: 1;
|
||||
uint8_t overscanMode: 1;
|
||||
uint8_t enablePseudoHiresMode: 1;
|
||||
uint8_t _: 2;
|
||||
uint8_t mode7ExtBg: 1;
|
||||
uint8_t externalSync: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _setini;
|
||||
|
||||
// <READ registers>
|
||||
|
||||
//! @brief MPYL - MPYM - MPYH Registers (Multiplication Result)
|
||||
union {
|
||||
struct {
|
||||
uint32_t mpyl: 8;
|
||||
uint32_t mpym: 8;
|
||||
uint32_t mpyh: 8;
|
||||
uint32_t _: 8;
|
||||
};
|
||||
uint32_t mpy = 0;
|
||||
} _mpy;
|
||||
//! @brief SLHV - Software Latch for H/V Counter
|
||||
uint8_t _slhv = 0;
|
||||
//! @brief OAMDATAREAD - Data for OAM read
|
||||
uint8_t _oamdataread = 0;
|
||||
//! @brief VMDATALREAD/VMDATAHREAD - VRAM Data Read low/high byte
|
||||
union {
|
||||
struct {
|
||||
uint16_t vmDataLRead: 8;
|
||||
uint16_t vmDataHRead: 8;
|
||||
};
|
||||
uint16_t raw = 0;
|
||||
} _vmdataread;
|
||||
//! @brief CGRAM Data read
|
||||
union {
|
||||
struct {
|
||||
uint16_t cgDataLRead: 8;
|
||||
uint16_t cgDataHRead: 8;
|
||||
};
|
||||
uint16_t raw = 0;
|
||||
} _cgdataread;
|
||||
//! @brief OPHCT/OPVCT - Horizontal/Vertical Scanline Location
|
||||
union {
|
||||
struct {
|
||||
uint16_t opct: 9;
|
||||
uint16_t _: 7;
|
||||
};
|
||||
uint16_t raw = 0;
|
||||
} _opct;
|
||||
//! @brief STAT77 - PPU Status Flag and Version
|
||||
union {
|
||||
struct {
|
||||
uint8_t chipVersionNumber: 4;
|
||||
uint8_t _: 1;
|
||||
uint8_t modeSelect: 1;
|
||||
uint8_t rangeOverFlag: 1;
|
||||
uint8_t timeOverFlag: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _stat77;
|
||||
//! @brief STAT78 - PPU Status Flag and Version
|
||||
union {
|
||||
struct {
|
||||
uint8_t chipVersionNumber: 4;
|
||||
uint8_t mode: 1;
|
||||
uint8_t _: 1;
|
||||
uint8_t externalLatchFlag: 1;
|
||||
uint8_t interlaceField: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _stat78;
|
||||
Background1 = 0,
|
||||
Background2,
|
||||
Background3,
|
||||
Background4
|
||||
};
|
||||
|
||||
//! @brief The class containing all the registers of the PPU
|
||||
|
||||
@@ -0,0 +1,519 @@
|
||||
//
|
||||
// Created by cbihan on 13/07/2021.
|
||||
//
|
||||
|
||||
#pragma once
|
||||
|
||||
|
||||
namespace ComSquare::PPU
|
||||
{
|
||||
enum PpuRegisters {
|
||||
//! @brief INIDISP Register (F-blank and Brightness)
|
||||
inidisp = 0x00,
|
||||
//! @brief OBSEL Register (Object Size and Character Address)
|
||||
obsel = 0x01,
|
||||
//! @brief OAMADDL (OAM Address low byte)
|
||||
oamaddl = 0x02,
|
||||
//! @brief OAMADDH (OAM Address high bit and Obj Priority)
|
||||
oamaddh = 0x03,
|
||||
//! @brief OAMDATA (Data for OAM write)
|
||||
oamdata = 0x04,
|
||||
//! @brief BGMODE (BG Mode and Character Size)
|
||||
bgmode = 0x05,
|
||||
//! @brief MOSAIC (Screen Pixelation)
|
||||
mosaic = 0x06,
|
||||
//! @brief BG1SC (BG1 Tilemap Address and Size)
|
||||
bg1sc = 0x07,
|
||||
//! @brief BG2SC (BG2 Tilemap Address and Size)
|
||||
bg2sc = 0x08,
|
||||
//! @brief BG3SC (BG3 Tilemap Address and Size)
|
||||
bg3sc = 0x09,
|
||||
//! @brief BG4SC (BG4 Tilemap Address and Size)
|
||||
bg4sc = 0x0A,
|
||||
//! @brief BG12NBA (BG1 and 2 Chr Address)
|
||||
bg12nba = 0x0B,
|
||||
//! @brief BG34NBA (BG3 and 4 Chr Address)
|
||||
bg34nba = 0x0C,
|
||||
//! @brief BG1HOFS (BG1 Horizontal Scroll)
|
||||
//! @brief M7HOFS (Mode 7 BG Horizontal Scroll)
|
||||
//! @info When bg mode is 7 the register is used as M7HOFS
|
||||
bg1hofs = 0x0D,
|
||||
//! @brief BG1VOFS (BG1 Vertical Scroll)
|
||||
//! @brief M7VOFS (Mode 7 BG Vertical Scroll)
|
||||
//! @info When bg mode is 7 the register is used as M7VOFS
|
||||
bg1vofs = 0x0E,
|
||||
//! @brief BG2HOFS (BG2 Horizontal Scroll)
|
||||
bg2hofs = 0x0F,
|
||||
//! @brief BG2VOFS (BG2 Vertical Scroll)
|
||||
bg2vofs = 0x10,
|
||||
//! @brief BG3HOFS (BG3 Horizontal Scroll)
|
||||
bg3hofs = 0x11,
|
||||
//! @brief BG3VOFS (BG3 Vertical Scroll)
|
||||
bg3vofs = 0x12,
|
||||
//! @brief BG4HOFS (BG4 Horizontal Scroll)
|
||||
bg4hofs = 0x13,
|
||||
//! @brief BG4VOFS (BG4 Vertical Scroll)
|
||||
bg4vofs = 0x14,
|
||||
//! @brief VMAIN (Video Port Control)
|
||||
vmain = 0x15,
|
||||
//! @brief VMADDL (VRAM Address low byte)
|
||||
vmaddl = 0x16,
|
||||
//! @brief VMADDH (VRAM Address high byte)
|
||||
vmaddh = 0x17,
|
||||
//! @brief VMDATAL (VRAM Data Write low byte)
|
||||
vmdatal = 0x18,
|
||||
//! @brief VMDATAH (VRAM Data Write high byte)
|
||||
vmdatah = 0x19,
|
||||
//! @brief M7SEL (Mode 7 Settings)
|
||||
m7sel = 0x1A,
|
||||
//! @brief M7A (Mode 7 Matrix A) also used with $2134/6
|
||||
m7a = 0x1B,
|
||||
//! @brief M7B (Mode 7 Matrix B) also used with $2134/6
|
||||
m7b = 0x1C,
|
||||
//! @brief M7C (Mode 7 Matrix C)
|
||||
m7c = 0x1D,
|
||||
//! @brief M7D (Mode 7 Matrix D)
|
||||
m7d = 0x1E,
|
||||
//! @brief M7X (Mode 7 Center X)
|
||||
m7x = 0x1F,
|
||||
//! @brief M7Y (Mode 7 Center Y)
|
||||
m7y = 0x20,
|
||||
//! @brief CGADD (CGRAM Address)
|
||||
cgadd = 0x21,
|
||||
//! @brief CGDATA (CGRAM Data write)
|
||||
cgdata = 0x22,
|
||||
//! @brief W12SEL (Window Mask Settings for BG1 and BG2)
|
||||
w12sel = 0x23,
|
||||
//! @brief W34SEL (Window Mask Settings for BG3 and BG4)
|
||||
w34sel = 0x24,
|
||||
//! @brief WOBJSEL (Window Mask Settings for OBJ and Color Window)
|
||||
wobjsel = 0x25,
|
||||
//! @brief WH0 (Window 1 Left Position)
|
||||
wh0 = 0x26,
|
||||
//! @brief WH1 (Window 1 Right Position)
|
||||
wh1 = 0x27,
|
||||
//! @brief WH2 (Window 2 Left Position)
|
||||
wh2 = 0x28,
|
||||
//! @brief WH3 (Window 2 Right Position)
|
||||
wh3 = 0x29,
|
||||
//! @brief WBGLOG (Window mask logic for BGs)
|
||||
wbjlog = 0x2A,
|
||||
//! @brief WOBJLOG (Window mask logic for OBJs and Color Window)
|
||||
wobjlog = 0x2B,
|
||||
//! @brief TM (Main Screen Designation)
|
||||
tm = 0x2C,
|
||||
//! @brief TS (Subscreen Designation)
|
||||
ts = 0x2D,
|
||||
//! @brief TMW (Window Mask Designation for the Main Screen)
|
||||
tmw = 0x2E,
|
||||
//! @brief TSW (Window Mask Designation for the Subscreen)
|
||||
tsw = 0x2F,
|
||||
//! @brief CGWSEL (Color Addition Select)
|
||||
cgwsel = 0x30,
|
||||
//! @brief CGADSUB (Color math designation)
|
||||
cgadsub = 0x31,
|
||||
//! @brief COLDATA (Fixed Color Data)
|
||||
coldata = 0x32,
|
||||
//! @brief SETINI (Screen Mode/Video Select)
|
||||
setini = 0x33,
|
||||
//! @brief MPYL (Multiplication Result low byte)
|
||||
mpyl = 0x34,
|
||||
//! @brief MPYM (Multiplication Result middle byte)
|
||||
mpym = 0x35,
|
||||
//! @brief MPYH (Multiplication Result high byte)
|
||||
mpyh = 0x36,
|
||||
//! @brief SLHV (Software Latch for H/V Counter)
|
||||
slhv = 0x37,
|
||||
//! @brief OAMDATAREAD (Data for OAM read)
|
||||
oamdataread = 0x38,
|
||||
//! @brief VMDATALREAD (VRAM Data Read low byte)
|
||||
vmdatalread = 0x39,
|
||||
//! @brief VMDATAHREAD (VRAM Data Read high byte)
|
||||
vmdatahread = 0x3A,
|
||||
//! @brief CGDATAREAD (CGRAM Data read)
|
||||
cgdataread = 0x3B,
|
||||
//! @brief OPHCT (Horizontal Scanline Location)
|
||||
ophct = 0x3C,
|
||||
//! @brief OPVCT (Vertical Scanline Location)
|
||||
opvct = 0x3D,
|
||||
//! @brief STAT77 (PPU Status Flag and Version)
|
||||
stat77 = 0x3E,
|
||||
//! @brief STAT78 (PPU Status Flag and Version)
|
||||
stat78 = 0x3F
|
||||
};
|
||||
|
||||
struct Registers {
|
||||
//! @brief INIDISP Register (F-blank and Brightness)
|
||||
union {
|
||||
struct {
|
||||
//! @brief Store the brightness value (F = max, 0 = off)
|
||||
uint8_t brightness: 4;
|
||||
uint8_t _: 3;
|
||||
//! @brief Store the FBlank status
|
||||
uint8_t fblank: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _inidisp;
|
||||
//! @brief OBSEL Register (Object Size and Character Address)
|
||||
union {
|
||||
struct {
|
||||
//! @brief Stores the location of the first sprite table
|
||||
uint8_t nameBaseSelect: 3;
|
||||
//! @brief Stores the offset of the second sprite table
|
||||
uint8_t nameSelect: 2;
|
||||
//! @brief Stores the resolution preset of the sprites
|
||||
uint8_t objectSize: 3;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _obsel;
|
||||
//! @brief OAMADD Register (OAM Address and Obj Priority)
|
||||
union {
|
||||
struct {
|
||||
//! @brief Stores the address to write with OAMDATA register
|
||||
uint16_t oamAddress: 9;
|
||||
uint16_t _: 6;
|
||||
//! @brief When Obj Priority activation bit is set, an Obj other than Sprite 0 may be given priority
|
||||
uint16_t objPriorityActivationBit: 1;
|
||||
};
|
||||
struct {
|
||||
//! @brief Stores the data written on the OAMADDL register
|
||||
uint16_t oamaddl: 8;
|
||||
//! @brief Stores the data written on the OAMADDH register
|
||||
uint16_t oamaddh: 8;
|
||||
};
|
||||
uint16_t raw = 0;
|
||||
} _oamadd;
|
||||
//! @brief OAMDATA Register (Data for OAM write)
|
||||
uint8_t _oamdata = 0;
|
||||
//! @brief BGMODE Register (OAM Address and Obj Priority)
|
||||
union {
|
||||
struct {
|
||||
//! @brief Stores the current BG Mode (0 - 7)
|
||||
uint8_t bgMode: 3;
|
||||
//! @brief When Mode 1 BG3 priority bit is set the BG3 is draw
|
||||
uint8_t mode1Bg3PriorityBit: 1;
|
||||
//! @brief When The bit is set character size will 16x16 otherwise it is 8x8
|
||||
uint8_t characterSizeBg1: 1;
|
||||
//! @brief When The bit is set character size will 16x16 otherwise it is 8x8
|
||||
uint8_t characterSizeBg2: 1;
|
||||
//! @brief When The bit is set character size will 16x16 otherwise it is 8x8
|
||||
uint8_t characterSizeBg3: 1;
|
||||
//! @brief When The bit is set character size will 16x16 otherwise it is 8x8
|
||||
uint8_t characterSizeBg4: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _bgmode;
|
||||
//! @brief MOSAIC Register (Screen Pixelation)
|
||||
union {
|
||||
struct {
|
||||
//! @brief Apply mosaic to the BG1
|
||||
uint8_t affectBg1: 1;
|
||||
//! @brief Apply mosaic to the BG2
|
||||
uint8_t affectBg2: 1;
|
||||
//! @brief Apply mosaic to the BG3
|
||||
uint8_t affectBg3: 1;
|
||||
//! @brief Apply mosaic to the BG4
|
||||
uint8_t affectBg4: 1;
|
||||
//! @brief Stores the pixel size (0 = 1x1, F = 16x16)
|
||||
uint8_t pixelSize: 4;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _mosaic;
|
||||
//! @brief BGSC Registers (BG Tilemap Address and Size)
|
||||
union {
|
||||
struct {
|
||||
//! @brief When tilemap horizontal mirroring bit is set the tilemap is mirrored horizontally
|
||||
uint8_t tilemapHorizontalMirroring: 1;
|
||||
//! @brief When tilemap vertically mirroring bit is set the tilemap is mirrored vertically
|
||||
uint8_t tilemapVerticalMirroring: 1;
|
||||
//! @brief Address of the tilemap Address (0, 0)
|
||||
uint8_t tilemapAddress: 6;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _bgsc[4];
|
||||
//! @brief BGNBA Registers (BG1/2/3/4 Chr Address)
|
||||
union {
|
||||
struct {
|
||||
//! @brief The address let us know where to search for BG1/3 characters
|
||||
uint8_t baseAddressBg1a3: 4;
|
||||
//! @brief The address let us know where to search for BG2/4 characters
|
||||
uint8_t baseAddressBg2a4: 4;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _bgnba[2];
|
||||
//! @brief BGXXOFS Register (BG1/2/3/4 Horizontal and Vertical Scrolls)
|
||||
union {
|
||||
struct {
|
||||
uint16_t offsetBg: 10;
|
||||
uint16_t _ : 6;
|
||||
};
|
||||
uint16_t raw = 0;
|
||||
} _bgofs[8];
|
||||
//! @brief M7HOFS Register (Mode 7 BG Horizontal Scroll)
|
||||
//! @brief M7VOFS Register (Mode 7 BG Vertical Scroll)
|
||||
union {
|
||||
struct {
|
||||
uint16_t offsetBg : 13;
|
||||
uint16_t _ : 3;
|
||||
};
|
||||
uint16_t raw = 0;
|
||||
} _m7ofs[2];
|
||||
//! @brief VMAIN Register (Video Port Control)
|
||||
union {
|
||||
struct {
|
||||
uint8_t incrementAmount: 2;
|
||||
uint8_t addressRemapping: 2;
|
||||
uint8_t _ : 3;
|
||||
uint8_t incrementMode: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _vmain;
|
||||
//! @brief Store the real value of the increment Amount (1, 32, 128) instead of 0,1 or 2
|
||||
uint8_t _incrementAmount = 1;
|
||||
//! @brief VMADD Register (VRAM Address)
|
||||
union {
|
||||
struct {
|
||||
uint16_t vmaddl: 8;
|
||||
uint16_t vmaddh: 8;
|
||||
};
|
||||
uint16_t vmadd = 0;
|
||||
} _vmadd;
|
||||
//! @brief VMDATA Register (VRAM Data Write)
|
||||
union {
|
||||
struct {
|
||||
uint16_t vmdatal: 8;
|
||||
uint16_t vmdatah: 8;
|
||||
};
|
||||
uint16_t vmdata = 0;
|
||||
} _vmdata;
|
||||
//! @brief TODO M7SEL Register (Mode 7 Settings)
|
||||
union {
|
||||
struct {
|
||||
uint8_t horizontalMirroring: 1;
|
||||
uint8_t verticalMirroring: 1;
|
||||
uint8_t _: 4;
|
||||
uint8_t emptySpaceFill: 1;
|
||||
uint8_t playingFieldSize: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _m7sel;
|
||||
//! @brief M7A M7B M7C M7C registers, M7A and M7B are also used with ($2134/6) (multiplactions registers)
|
||||
union {
|
||||
struct {
|
||||
uint16_t m7l: 8;
|
||||
uint16_t m7h: 8;
|
||||
};
|
||||
uint16_t m7 = 0;
|
||||
} _m7[4];
|
||||
// <to work>
|
||||
|
||||
//! @brief M7X Register (Mode 7 Center X)
|
||||
union { // Not sure if it is done correctly
|
||||
struct {
|
||||
uint16_t _: 3;
|
||||
uint16_t value: 13;
|
||||
};
|
||||
uint16_t raw = 0;
|
||||
} _m7x;
|
||||
//! @brief M7Y Register (Mode 7 Center Y)
|
||||
union { // Not sure if it is done correctly
|
||||
struct {
|
||||
uint16_t _: 3;
|
||||
uint16_t value: 13;
|
||||
};
|
||||
uint16_t raw = 0;
|
||||
} _m7y;
|
||||
//! @brief CGADD Register (CGRAM Address)
|
||||
uint8_t _cgadd = 0;
|
||||
//! @brief CGDATA Register (CGRAM Data write)
|
||||
union {
|
||||
struct {
|
||||
uint16_t red: 5;
|
||||
uint16_t green: 5;
|
||||
uint16_t blue: 5;
|
||||
uint16_t _: 1;
|
||||
};
|
||||
struct {
|
||||
uint16_t cgdatal: 8;
|
||||
uint16_t cgdatah: 8;
|
||||
};
|
||||
uint16_t raw = 0;
|
||||
} _cgdata;
|
||||
//! @brief This bool is used for writing either the low byte of the data (first call) or the high byte of the data (second call)
|
||||
//! @info This bool is set to True when writing to $2121 (CGADD)
|
||||
bool _isLowByte = false;
|
||||
//! @brief W12SEL - W34SEL Registers (Window Mask Settings for BGs) and WOBJSEL Register (Window Mask Settings for OBJ and Color Window)
|
||||
union {
|
||||
struct {
|
||||
uint8_t enableWindow2ForBg2Bg4Color: 1;
|
||||
uint8_t window2InversionForBg2Bg4Color: 1;
|
||||
uint8_t enableWindow1ForBg2Bg4Color: 1;
|
||||
uint8_t window1InversionForBg2Bg4Color: 1;
|
||||
uint8_t enableWindow2ForBg1Bg3Obj: 1;
|
||||
uint8_t window2InversionForBg1Bg3Obj: 1;
|
||||
uint8_t enableWindow1ForBg1Bg3Obj: 1;
|
||||
uint8_t window1InversionForBg1Bg3Obj: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _wsel[3];
|
||||
//! @brief WH0 Register (Window 1 Left Position)
|
||||
//! @brief WH1 Register (Window 1 Right Position)
|
||||
//! @brief WH2 Register (Window 2 Left Position)
|
||||
//! @brief WH3 Register (Window 2 Right Position)
|
||||
uint8_t _wh[4] = {0};
|
||||
//! @brief WBGLOG Register (Window mask logic for BGs)
|
||||
union {
|
||||
struct {
|
||||
uint8_t maskLogicBg4: 2;
|
||||
uint8_t maskLogicBg3: 2;
|
||||
uint8_t maskLogicBg2: 2;
|
||||
uint8_t maskLogicBg1: 2;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _wbglog;
|
||||
//! @brief WOBJLOG Register (Window mask logic for OBJs and Color Window)
|
||||
union {
|
||||
struct {
|
||||
uint8_t maskLogicObj: 2;
|
||||
uint8_t maskLogicColor: 2;
|
||||
uint8_t _: 4;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _wobjlog;
|
||||
//! @brief TM - TS Registers (Main & Sub Screen Designation)
|
||||
union {
|
||||
struct {
|
||||
uint8_t enableWindowDisplayBg1: 1;
|
||||
uint8_t enableWindowDisplayBg2: 1;
|
||||
uint8_t enableWindowDisplayBg3: 1;
|
||||
uint8_t enableWindowDisplayBg4: 1;
|
||||
uint8_t enableWindowDisplayObj: 1;
|
||||
uint8_t _: 3;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _t[2];
|
||||
//! @brief TMW - TSW Registers (Window Mask Designation for the Main/Sub Screen)
|
||||
union {
|
||||
struct {
|
||||
uint8_t enableWindowMaskingBg1: 1;
|
||||
uint8_t enableWindowMaskingBg2: 1;
|
||||
uint8_t enableWindowMaskingBg3: 1;
|
||||
uint8_t enableWindowMaskingBg4: 1;
|
||||
uint8_t enableWindowMaskingObj: 1;
|
||||
uint8_t _: 3;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _tw[2];
|
||||
//! @brief CGWSEL Register (Color Addition Select)
|
||||
union {
|
||||
struct {
|
||||
uint8_t directColorMode: 1;
|
||||
uint8_t addSubscreen: 1;
|
||||
uint8_t _: 2;
|
||||
uint8_t preventColorMath: 2;
|
||||
uint8_t clipColorToBlackBeforeMath: 2;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _cgwsel;
|
||||
//! @brief CGADSUB Register (Color Math designation)
|
||||
union {
|
||||
struct {
|
||||
uint8_t enableColorMathBg1: 1;
|
||||
uint8_t enableColorMathBg2: 1;
|
||||
uint8_t enableColorMathBg3: 1;
|
||||
uint8_t enableColorMathBg4: 1;
|
||||
uint8_t enableColorMathObj: 1;
|
||||
uint8_t enableColorMathBackdrop: 1;
|
||||
uint8_t halfColorMath: 1;
|
||||
uint8_t addSubtractSelect: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _cgadsub;
|
||||
//! @brief COLDATA Register (Fixed Color Data)
|
||||
union {
|
||||
struct {
|
||||
uint8_t colorIntensity: 5;
|
||||
uint8_t red: 1;
|
||||
uint8_t green: 1;
|
||||
uint8_t blue: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _coldata;
|
||||
//! @brief SETINI Register (Screen Mode/Video Select)
|
||||
union {
|
||||
struct {
|
||||
uint8_t screenInterlace: 1;
|
||||
uint8_t objInterlace: 1;
|
||||
uint8_t overscanMode: 1;
|
||||
uint8_t enablePseudoHiresMode: 1;
|
||||
uint8_t _: 2;
|
||||
uint8_t mode7ExtBg: 1;
|
||||
uint8_t externalSync: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _setini;
|
||||
|
||||
// <READ registers>
|
||||
|
||||
//! @brief MPYL - MPYM - MPYH Registers (Multiplication Result)
|
||||
union {
|
||||
struct {
|
||||
uint32_t mpyl: 8;
|
||||
uint32_t mpym: 8;
|
||||
uint32_t mpyh: 8;
|
||||
uint32_t _: 8;
|
||||
};
|
||||
uint32_t mpy = 0;
|
||||
} _mpy;
|
||||
//! @brief SLHV - Software Latch for H/V Counter
|
||||
uint8_t _slhv = 0;
|
||||
//! @brief OAMDATAREAD - Data for OAM read
|
||||
uint8_t _oamdataread = 0;
|
||||
//! @brief VMDATALREAD/VMDATAHREAD - VRAM Data Read low/high byte
|
||||
union {
|
||||
struct {
|
||||
uint16_t vmDataLRead: 8;
|
||||
uint16_t vmDataHRead: 8;
|
||||
};
|
||||
uint16_t raw = 0;
|
||||
} _vmdataread;
|
||||
//! @brief CGRAM Data read
|
||||
union {
|
||||
struct {
|
||||
uint16_t cgDataLRead: 8;
|
||||
uint16_t cgDataHRead: 8;
|
||||
};
|
||||
uint16_t raw = 0;
|
||||
} _cgdataread;
|
||||
//! @brief OPHCT/OPVCT - Horizontal/Vertical Scanline Location
|
||||
union {
|
||||
struct {
|
||||
uint16_t opct: 9;
|
||||
uint16_t _: 7;
|
||||
};
|
||||
uint16_t raw = 0;
|
||||
} _opct;
|
||||
//! @brief STAT77 - PPU Status Flag and Version
|
||||
union {
|
||||
struct {
|
||||
uint8_t chipVersionNumber: 4;
|
||||
uint8_t _: 1;
|
||||
uint8_t modeSelect: 1;
|
||||
uint8_t rangeOverFlag: 1;
|
||||
uint8_t timeOverFlag: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _stat77;
|
||||
//! @brief STAT78 - PPU Status Flag and Version
|
||||
union {
|
||||
struct {
|
||||
uint8_t chipVersionNumber: 4;
|
||||
uint8_t mode: 1;
|
||||
uint8_t _: 1;
|
||||
uint8_t externalLatchFlag: 1;
|
||||
uint8_t interlaceField: 1;
|
||||
};
|
||||
uint8_t raw = 0;
|
||||
} _stat78;
|
||||
};
|
||||
}
|
||||
Reference in New Issue
Block a user