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Advances towards the Master System actually receiving interrupts.
This commit is contained in:
Thomas Harte
parent
38a1fde3bf
commit
9683c8f664
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@ -130,6 +130,7 @@ static Media GetMediaAndPlatforms(const std::string &file_name, TargetPlatform::
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result.cartridges,
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Cartridge::BinaryDump,
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TargetPlatform::AcornElectron | TargetPlatform::ColecoVision | TargetPlatform::MSX) // ROM
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Format("sg", result.cartridges, Cartridge::BinaryDump, TargetPlatform::Sega) // SG
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Format("sms", result.cartridges, Cartridge::BinaryDump, TargetPlatform::Sega) // SMS
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Format("ssd", result.disks, Disk::DiskImageHolder<Storage::Disk::SSD>, TargetPlatform::Acorn) // SSD
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Format("tap", result.tapes, Tape::CommodoreTAP, TargetPlatform::Commodore) // TAP (Commodore)
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@ -84,6 +84,7 @@ enum ScreenMode {
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}
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Base::Base(Personality p) :
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personality_(p),
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// 342 internal cycles are 228/227.5ths of a line, so 341.25 cycles should be a whole
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// line. Therefore multiply everything by four, but set line length to 1365 rather than 342*4 = 1368.
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crt_(new Outputs::CRT::CRT(1365, 4, Outputs::CRT::DisplayType::NTSC60, 4)) {
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@ -662,8 +663,19 @@ void TMS9918::set_register(int address, uint8_t value) {
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write_phase_ = false;
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if(value & 0x80) {
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switch(personality_) {
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default:
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value &= 7;
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break;
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case TI::TMS::SMSVDP:
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value &= 0x7f;
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break;
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}
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// printf("%02x to %d\n", low_write_, value);
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// This is a write to a register.
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switch(value & 7) {
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switch(value) {
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case 0:
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next_screen_mode_ = (next_screen_mode_ & 6) | ((low_write_ & 2) >> 1);
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break;
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@ -30,6 +30,7 @@ class Base {
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protected:
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Base(Personality p);
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Personality personality_;
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std::unique_ptr<Outputs::CRT::CRT> crt_;
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std::vector<uint8_t> ram_;
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@ -93,7 +94,7 @@ class Base {
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uint8_t image[2];
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int shift_position = 0;
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} active_sprites[4];
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} active_sprites[8];
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int active_sprite_slot = 0;
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} sprite_sets_[2];
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int active_sprite_set_ = 0;
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@ -104,111 +105,121 @@ class Base {
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inline void test_sprite(int sprite_number, int screen_row);
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inline void get_sprite_contents(int start, int cycles, int screen_row);
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// Contains tables describing the memory access patterns and, implicitly,
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// the timing of video generation.
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enum Operation {
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HSyncOn,
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HSyncOff,
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ColourBurstOn,
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ColourBurstOff,
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/*
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#define slot(n) \
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if(use_end && end+1 == n) return;\
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case n
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/// A memory access slot that is available for an external read or write.
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External,
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template<bool use_end> void fetch_sms(int start, int end) {
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#define sprite_render_block(location, sprite) \
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slot(location): \
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sprite_sets_[active_sprite_set_].info[0] =
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switch(start) {
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default:
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// slot(1):
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/// A refresh cycle; neither used for video fetching nor available for external use.
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Refresh,
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return;
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}
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}
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/*!
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Column N Name Table Read
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[= 1 slot]
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*/
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NameTableRead,
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#undef slot
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*/
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/*!
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Column N Pattern Table Read
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[= 1 slot]
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*/
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PatternTableRead,
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/*!
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Y0, X0, N0, C0, Pattern 0 (1), Pattern 0 (2),
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Y1, X1, N1, C1, Pattern 1 (1), Pattern 1 (2),
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Y2, X2
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[= 14 slots]
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*/
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TMSSpriteFetch1,
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/*!
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N2, C2, Pattern 2 (1), Pattern 2 (2),
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Y3, X3, N3, C3, Pattern 3 (1), Pattern 3 (2),
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[= 10 slots]
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*/
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TMSSpriteFetch2,
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/*!
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Sprite N fetch, Sprite N+1 fetch [...]
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*/
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TMSSpriteYFetch,
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/*!
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Colour N, Pattern N,
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Name N+1,
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Sprite N,
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Colour N+1, Pattern N+1,
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Name N+2,
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Sprite N+1,
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Colour N+2, Pattern N+2,
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Name N+3,
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Sprite N+2,
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Colour N+3, Pattern N+3,
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Name N+4,
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[= 15 slots]
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*/
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TMSBackgroundRenderBlock,
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/*!
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Pattern N,
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Name N+1
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*/
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TMSPatternNameFetch,
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/*!
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Sprite N X/Name Read
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Sprite N+1 X/Name Read
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Sprite N Tile read (1st word)
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Sprite N Tile read (2nd word)
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Sprite N+1 Tile Read (1st word)
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Sprite N+1 Tile Read (2nd word)
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[= 6 slots]
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*/
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SMSSpriteRenderBlock,
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/*!
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Column N Tile Read (1st word)
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Column N Tile Read (2nd word)
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Column N+1 Name Table Read
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Sprite (16+N*1.5) Y Read (Reads Y of 2 sprites)
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Column N+1 Tile Read (1st word)
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Column N+1 Tile Read (2nd word)
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Column N+2 Name Table Read
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Sprite (16+N*1.5+2) Y Read (Reads Y of 2 sprites)
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Column N+2 Tile Read (1st word)
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Column N+2 Tile Read (2nd word)
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Column N+3 Name Table Read
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Sprite (16+N*1.5+4) Y Read (Reads Y of 2 sprites)
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Column N+3 Tile Read (1st word)
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Column N+3 Tile Read (2nd word)
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[= 14 slots]
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*/
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SMSBackgroundRenderBlock,
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};
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struct Period {
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Operation operation;
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int duration;
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};
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// // Contains tables describing the memory access patterns and, implicitly,
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// // the timing of video generation.
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// enum Operation {
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// HSyncOn,
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// HSyncOff,
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// ColourBurstOn,
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// ColourBurstOff,
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//
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// /// A memory access slot that is available for an external read or write.
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// External,
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//
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// /// A refresh cycle; neither used for video fetching nor available for external use.
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// Refresh,
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//
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// /// A slot that reads the next sprite location for
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// ReadSpriteY,
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//
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// /*!
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// Column N Name Table Read
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// [= 1 slot]
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// */
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// NameTableRead,
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//
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// /*!
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// Column N Pattern Table Read
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// [= 1 slot]
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// */
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// PatternTableRead,
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//
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// /*!
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// Y0, X0, N0, C0, Pattern 0 (1), Pattern 0 (2),
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// Y1, X1, N1, C1, Pattern 1 (1), Pattern 1 (2),
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// Y2, X2
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// [= 14 slots]
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// */
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// TMSSpriteFetch1,
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//
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// /*!
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// N2, C2, Pattern 2 (1), Pattern 2 (2),
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// Y3, X3, N3, C3, Pattern 3 (1), Pattern 3 (2),
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// [= 10 slots]
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// */
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// TMSSpriteFetch2,
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//
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// /*!
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// Sprite N fetch, Sprite N+1 fetch [...]
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// */
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// TMSSpriteYFetch,
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//
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// /*!
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// Colour N, Pattern N,
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// Name N+1,
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// [= 3 slots]
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// */
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// TMSBackgroundRenderBlock,
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//
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// /*!
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// Colour N, Pattern N,
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// */
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// TMSColourPatternFetch,
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//
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// /*!
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// Sprite N X/Name Read
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// Sprite N+1 X/Name Read
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// Sprite N Tile read (1st word)
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// Sprite N Tile read (2nd word)
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// Sprite N+1 Tile Read (1st word)
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// Sprite N+1 Tile Read (2nd word)
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// [= 6 slots]
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// */
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// SMSSpriteRenderBlock,
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//
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// /*!
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// Column N Tile Read (1st word)
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// Column N Tile Read (2nd word)
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// Column N+1 Name Table Read
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// Sprite (16+N*1.5) Y Read (Reads Y of 2 sprites)
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// Column N+1 Tile Read (1st word)
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// Column N+1 Tile Read (2nd word)
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// Column N+2 Name Table Read
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// Sprite (16+N*1.5+2) Y Read (Reads Y of 2 sprites)
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// Column N+2 Tile Read (1st word)
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// Column N+2 Tile Read (2nd word)
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// Column N+3 Name Table Read
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// Sprite (16+N*1.5+4) Y Read (Reads Y of 2 sprites)
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// Column N+3 Tile Read (1st word)
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// Column N+3 Tile Read (2nd word)
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// [= 14 slots]
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// */
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// SMSBackgroundRenderBlock,
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// };
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// struct Period {
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// Operation operation;
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// int duration;
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// };
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};
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}
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@ -453,6 +453,28 @@
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<key>LSHandlerRank</key>
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<string>Owner</string>
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</dict>
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<dict>
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<key>CFBundleTypeExtensions</key>
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<array>
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<string>sg</string>
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</array>
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<key>CFBundleTypeOSTypes</key>
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<array>
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<string>????</string>
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</array>
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<key>CFBundleTypeIconFile</key>
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<string>cartridge.png</string>
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<key>CFBundleTypeName</key>
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<string>SG1000 Cartridge</string>
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<key>CFBundleTypeRole</key>
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<string>Viewer</string>
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<key>LSTypeIsPackage</key>
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<false/>
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<key>NSDocumentClass</key>
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<string>$(PRODUCT_MODULE_NAME).MachineDocument</string>
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<key>LSHandlerRank</key>
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<string>Owner</string>
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</dict>
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<dict>
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<key>CFBundleTypeExtensions</key>
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<array>
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