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CVJMEFSTDPOUPLZP
ϑΝϛίϯΤϛϡϨʔλ
ͷΓํ
!CPLVXFC
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!CPLVXFC
IUUQCMPHCPLVXFCNF
w ΈࠐΈϋʔυιϑτΣΞΤϯδχΞ
w 8FCϑϩϯτΤϯυΤϯδχΞ
w ࢁ͔Β߱Γ͖ͯ·ͨ͠
CPLVXFC
ࣗݾհ
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͍͞͠ΐʹ
!3VTU8FC"TTFNCMZ XJUIFNTDSJQUFO
Ͱ
ϑΝϛίϯΤϛϡϨʔλΛ࣮ͯ͠Έͨ͠Λ͢ΔηογϣϯͰ͢
!3VTU8FC"TTFNCMZͷجૅৄࡉʹ͋·Γ৮Ε·ͤΜ
!ϑΝϛίϯͷϋʔυΣΞ੍ɺͦͷΤϛϡϨʔγϣϯํ๏
Λॏతʹ͓͢ΔͭΓͰ͢
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2ϑΝϛίϯͷ࣮ػͰ
༡Μͩ͜ͱ͋Δਓ"
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%&.0
IUUQTHJUIVCDPNCPLVXFCSVTUZOFT
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$16 31" 3*$0)
CJU.)[
116 ϐΫνϟʔϓϩηοαϢχοτ31$
30. ࠷େϓϩάϥϜ30.,J#ΩϟϥΫλ30.,J#
83". ϫʔΩϯά3".,J#
73". ϏσΦ3".,J#
࠷େൃ৭ ৭
ը໘ղ૾ ºϐΫηϧ
αϯυ ۣܗɺࡾ֯ɺϊΠζɺ%1$.
ίϯτϩʔϥ ˢɺˣɺˡɺˠɺ"ɺ#ɺ45"35ɺ4&-&$5
ϑΝϛίϯͷεϖοΫ
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$16
31"
116
31$
73".
,J#
83".
,J#
#6'
Χηοτ
.)[
.)[
/.*
CJU116CVT
CJU$16CVT
"16
ϑΝϛίϯ
σΟεϓϨΠ
αϯυ
ίϯτϩʔϥ
ϑΝϛίϯͷϒϩοΫਤ
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ΤϛϡϨʔλΛ࡞Δʹ
͜ΕΒͷσόΠεΛҰͭҰͭ
࣮͍ͯ͘͠ඞཁ͕͋Δ
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·ͣϑΝϛίϯͷΧηοτ
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2த͕Ͳ͏ͳͬͯΔ͔
ͬͯ·͔͢ʁ
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ϓϩάϥϜ30.
"த͜͏ͳ͍ͬͯΔ
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"த͜͏ͳ͍ͬͯΔ
ΩϟϥΫλʔ30.
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ຊମͱͷଓίωΫλ
"த͜͏ͳ͍ͬͯΔ
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-------
GND -- |01 31| -- +5V
CPU A11 -> |02 32| <- M2
CPU A10 -> |03 33| <- CPU A12
CPU A9 -> |04 34| <- CPU A13
CPU A8 -> |05 35| <- CPU A14
CPU A7 -> |06 36| <> CPU D7
CPU A6 -> |07 37| <> CPU D6
CPU A5 -> |08 38| <> CPU D5
CPU A4 -> |09 39| <> CPU D4
CPU A3 -> |10 40| <> CPU D3
CPU A2 -> |11 41| <> CPU D2
CPU A1 -> |12 42| <> CPU D1
CPU A0 -> |13 43| <> CPU D0
CPU R/W -> |14 44| <- /ROMSEL (/A15 + /M2)
/IRQ <- |15 45| <- Audio from 2A03
GND -- |16 46| -> Audio to RF
PPU /RD -> |17 47| <- PPU /WR
CIRAM A10 <- |18 48| -> CIRAM /CE
PPU A6 -> |19 49| <- PPU /A13
PPU A5 -> |20 50| <- PPU A7
PPU A4 -> |21 51| <- PPU A8
PPU A3 -> |22 52| <- PPU A9
PPU A2 -> |23 53| <- PPU A10
PPU A1 -> |24 54| <- PPU A11
PPU A0 -> |25 55| <- PPU A12
PPU D0 <> |26 56| <- PPU A13
PPU D1 <> |27 57| <> PPU D7
PPU D2 <> |28 58| <> PPU D6
PPU D3 <> |29 59| <> PPU D5
+5V -- |30 60| <> PPU D4
-------
ΧηοτͷίωΫλϐϯྻΛݟΔͱ
$16116ͷCJUόε৴߸͕ͦΕͧΕଓ͞Ε͍ͯΔ
Χηοτͷϐϯྻ
$16ͷόε৴߸
116ͷόε৴߸
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ΩϟϥΫλʔ
30.
116 $16
ϑΝϛίϯຊମ
ϓϩάϥϜ
30.
Χηοτ
$16όεΛհͯ͠
Ϧʔυ͞ΕΔ
116όεΛհͯ͠
Ϧʔυ͞ΕΔ
Χηοτͱຊମͱͷόεଓ
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ϓϩάϥϜ30.ͱ
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ήʔϜϓϩάϥϜ͕֨ೲ͞Εͨ30.
$16ϓϩάϥϜ30.͔Β໋ྩϑΣονͯ͠ϓϩάϥϜ
Λ࣮ߦ͢Δ
void main()
{
char i;
*(char*)0x2000 = 0x00;
*(char*)0x2001 = 0x00;
͜Μͳͷ͕
"'''"ʜ
͜Μͳײ͡Ͱ٧·ͬͯΔ
ϓϩάϥϜ30.ͱ
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ΩϟϥΫλʔ30.ͱ
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ºͷήʔϜը૾͕֨ೲ͞Εͨ30.ʢ࠷େ,J#ʣ
എܠͱΩϟϥΫλʔͦΕͧΕͷσʔλ͕٧·ͬͯΔ
116͕ΩϟϥΫλʔ30.͔Βը૾σʔλΛಡΜͰ
ը໘্ʹஔ͢Δ
ΩϟϥΫλʔ30.ͱ
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ՄࢹԽͯ͠ΈΔͱ
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ҎԼઌఔͷσϞʮGBMMJOHʯͷΩϟϥΫλʔ30.ͷத
ΩϟϥΫλʔ30.ͱ
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̔#ZUFº#ZUFͰºαΠζͷը૾͕දݱ͞ΕΔ
ҎԼ30.ͷεϓϥΠτΠϯσοΫε͕ϋʔτϚʔΫͩͬͨ߹ͷྫ
"EESFTTT %BUB
Y Y
Y Y'
Y Y''
Y Y''
Y Y''
Y Y&
Y Y$
Y Y
"EESFTTT %BUB
Y Y
Y Y'
Y" Y#'
Y# Y#'
Y$ Y''
Y% Y&
Y& Y$
Y' Y
ΩϟϥΫλʔ30.ͷσʔλ
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ΤϛϡϨʔλͰ͜ΕΒͷใΛ
Ͳ͏औΓѻ͍͍͔͑
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J/&4ϑΥʔϚοτ
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$POTUBOU&" /&4GPMMPXFECZ.4%04FOEPGpMF
4J[FPG13(30.JO,#VOJUT
4J[FPG$)330.JO,#VOJUT 7BMVFNFBOTUIFCPBSEVTFT$)33".
'MBHT
'MBHT
4J[FPG13(3".JO,#VOJUT 7BMVFJOGFST,#GPSDPNQBUJCJMJUZTFF13(3".DJSDVJU
'MBHT
'MBHT VOPGpDJBM
;FSPpMMFE
#ZUF ,J#ZUF#MPDLTJ[F
J/&4
IFBEFS
J/&4
IFBEFS ϓϩάϥϜ30.
ϓϩάϥϜ30. ΩϟϥΫλʔ30.
,J#ZUF#MPDLTJ[F
J/&4IFBEFS
֦ுྖҬ
J/&4ϑΥʔϚοτͷத
#ZIFBEFSͷ#ZUFʹ
֤30.ͷϒϩοΫαΠζ͕
֨ೲ͞Ε͍ͯΔ
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·ͣOFTΛಡΜͰղੳͯ͠
֤30.ΛΓग़ͯ͠Δඞཁ͕͋Δ
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XBTN͔ΒOFTϑΝΠϧΛಡΉͷେม
ࠓճ+BWB4DSJQUଆͰOFTϑΝΠϧΛ
GFUDIͯ͠3VTU XBTN
ଆʹҾ͖͢͜ͱʹͨ͠
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const run = Module.cwrap("run", null, ["number", "number"]);
const res = await fetch("./PATH_TO_NES_FILE.nes");
const arrayBuf = await res.arrayBuffer();
const nes = new Uint8Array(arrayBuf);
const size = nes.byteLength;
const ptr = Module._malloc(size);
const buf = new Uint8Array(Module.HEAPU8.buffer, ptr, size);
buf.set(nes);
run(size, buf.byteOffset);
+BWB4DSJQUଆͷॳظԽॲཧ
3VTUଆͷؔΛ+4
͔ΒݺΔΑ͏ʹ ͜ΕҾ
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const run = Module.cwrap("run", null, ["number", "number"]);
const res = await fetch("./PATH_TO_NES_FILE.nes");
const arrayBuf = await res.arrayBuffer();
const nes = new Uint8Array(arrayBuf);
const size = nes.byteLength;
const ptr = Module._malloc(size);
const buf = new Uint8Array(Module.HEAPU8.buffer, ptr, size);
buf.set(nes);
run(size, buf.byteOffset);
+BWB4DSJQUଆͷॳظԽॲཧ
OFTϑΝΠϧΛϑΣον
ͯ͠"SSBZ#VGGFSʹม
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const run = Module.cwrap("run", null, ["number", "number"]);
const res = await fetch("./PATH_TO_NES_FILE.nes");
const arrayBuf = await res.arrayBuffer();
const nes = new Uint8Array(arrayBuf);
const size = nes.byteLength;
const ptr = Module._malloc(size);
const buf = new Uint8Array(Module.HEAPU8.buffer, ptr, size);
buf.set(nes);
run(size, buf.byteOffset);
+BWB4DSJQUଆͷॳظԽॲཧ
OFTϑΝΠϧͷྖҬΛ
NBMMPDͰ֬อ
ʢFNTDSJQUFOΛ༻ͨ͠߹
.PEVMFʹੜ͑ͯΔʣ
+4ଆ͔ΒXBTNଆͷϝϞϦ"SSBZ#VGGFS
ʹݟ͑ΔͷͰCZUF0GGTFUΛJ/&4σʔλͷઌ಄
ʢ͢ͳΘͪϙΠϯλʣͱͯ͠αΠζͱҰॹʹڭ͑
ͯΔ
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#[no_mangle]
pub fn run(len: usize, ptr: *mut u8) {
let buf: &mut [u8] = unsafe { std::slice::from_raw_parts_mut(ptr, len + 1) };
let cassette = parse(buf);
let prom = Rom::new(cassette.program_rom);
let crom = Rom::new(cassette.character_rom);
// ... লུ ….
}
pub fn parse(buf: &mut [u8]) -> Cassette {
let program_rom_pages = buf[4] as usize;
let character_rom_pages = buf[5] as usize;
let character_rom_start = NES_HEADER_SIZE + program_rom_pages * PROGRAM_ROM_SIZE;
let character_rom_end = character_rom_start + character_rom_pages * CHARACTER_ROM_SIZE;
Cassette {
program_rom: buf[NES_HEADER_SIZE..character_rom_start].to_vec(),
character_ram: buf[character_rom_start..character_rom_end].to_vec(),
}
}
3VTU XBTN
ଆͷॳظԽॲཧ
+4ଆ͔ΒJ/&4σʔλͷ
αΠζͱϙΠϯλΛΒ͏
QBSTF֤ͯ͠30.Λ
ޙड़͢Δ$16͕ϓϩάϥϜ30.
ͷ༰Λ࣮ߦ͢ΕήʔϜ͕։࢝͢Δʣ
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#[no_mangle]
pub fn run(len: usize, ptr: *mut u8) {
let buf: &mut [u8] = unsafe { std::slice::from_raw_parts_mut(ptr, len + 1) };
let cassette = parse(buf);
let prom = Rom::new(cassette.program_rom);
let crom = Rom::new(cassette.character_rom);
// ... লུ ….
}
pub fn parse(buf: &mut [u8]) -> Cassette {
let program_rom_pages = buf[4] as usize;
let character_rom_pages = buf[5] as usize;
let character_rom_start = NES_HEADER_SIZE + program_rom_pages * PROGRAM_ROM_SIZE;
let character_rom_end = character_rom_start + character_rom_pages * CHARACTER_ROM_SIZE;
Cassette {
program_rom: buf[NES_HEADER_SIZE..character_rom_start].to_vec(),
character_ram: buf[character_rom_start..character_rom_end].to_vec(),
}
}
3VTU XBTN
ଆͷॳظԽॲཧ
J/&4ϔομͷใ͔Β
֤30.ΛΓग़͢
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build:
mkdir -p wasm
rm -rf target/wasm32-unknown-emscripten/release/deps/*.wasm
rm -rf target/wasm32-unknown-emscripten/release/rustynes.js
cargo rustc --release \
--target=wasm32-unknown-emscripten -- \
-C opt-level=3 \
-C link-args="-O3 -s -s EXPORTED_FUNCTIONS=['_run'] -s EXTRA_EXPORTED_RUNTIME_METHODS=['cwrap']" \
--verbose
cp target/wasm32-unknown-emscripten/release/rustynes.js wasm/rustynes.js
cp target/wasm32-unknown-emscripten/release/deps/*.wasm wasm/rustynes.wasm
wasm-gc wasm/rustynes.wasm wasm/rustynes.wasm
ϏϧυίϚϯυ
+4ଆʹFYQPSU͢ΔؔΛ
ࢦఆͯ͠Δඞཁ͕͋Δ
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ϝϞϦʢ3".30.ʣ
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pub struct Ram {
pub field: Vec,
}
impl Ram {
pub fn new(buf: Vec) -> Ram {
Ram { field: buf }
}
pub fn read(&self, addr: u16) -> u8 {
self.field[addr as usize]
}
pub fn write(&mut self, addr: u16, data: u8) {
self.field[addr as usize] = data;
}
}
3".ͷ࣮
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$16͕ϝϞϦʹͲͷΑ͏ʹ
ΞΫηε͢Δ͔ͬͯ·͔͢ʁ
ׂ
Ѫ
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ͲͷΑ͏ʹϝϞϦʹ
ΞΫηε͢Δͷ͔ݟͯΈΔ
ׂ
Ѫ
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ΞυϨε
νοϓηϨΫτ
Ϧʔυ
σʔλ
Y%&"%
Y#&
43".ͷY%&"%൪ʹϦʔυΞΫηεΛߦ͍Y#&͕ಡΈग़͞ΕΔྫ
43".ͷϦʔυλΠϛϯάྫ
όεʹଞʹ༷ʑͳσόΠε͕ଓ͞ΕΔ
Մೳੑ͕͋ΔͷͰͲͷσόΠε͕༗ޮ͔ࣔ͢৴߸
νοϓηϨΫτɺΞυϨεɺϦʔυ৴߸ͳͲ
Ϧʔυʹඞཁͳ৴߸͕ଗ͏ͱ3".͔Βσʔλ
ׂ
Ѫ
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ΞυϨε
νοϓηϨΫτ
Ϧʔυ
σʔλ
Y%&"%
Y#&
43".ͷY%&"%൪ʹϦʔυΞΫηεΛߦ͍Y#&͕ಡΈग़͞ΕΔྫ
43".ͷϦʔυλΠϛϯάྫ
͜ͷλΠϛϯάͰY#&Λϥον͢Δ
σʔλϦʔυ৴߸ͷ্ཱ͕ͪΓͦͷޙͷ
$16ΫϩοΫͷ্ཱ͕ͪΓͰऔΓࠐ·ΕΔͷ͕ଟ͍
σόΠεʹϓϦϯτ͞Ε͍ͯΔࣈ͍͍ͩͨ͜͜ͷࣈ
ʢDZDMF
खݩͷ30.ͳͷͰ
DZDMFOTҎ্ʹͯ͠Ͷͱ͍͏ҙຯ
ׂ
Ѫ
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͢ͳΘͪɺ͜ΕΒͷ৴߸ΛλΠϛϯάΛकΓͭͭ
༩͑ͯΕΧηοτͷ30.͔Βσʔλ͕ಡΊΔ
ׂ
Ѫ
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$16
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w "QQMF**1$Τϯδϯʹ࠾༻͞Εͨϕʔε
w ಈ࡞ΫϩοΫ.)[
w .04͔ΒෆཁͳػೳΛͬͯ"16ͱ%"$Λ࣮ͨ͠
3JDPIͷΧελϜ
ϑΝϛίϯͷ$16
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$16ͷϨδελҰཡ
໊শ αΠζ ৄࡉ
" CJU ΞΩϡϜϨʔλ
9 CJU ΠϯσοΫεϨδελ
: CJU ΠϯσοΫεϨδελ
4 CJU ελοΫϙΠϯλ
1 CJU εςʔλεϨδελ
1$ CJU ϓϩάϥϜΧϯλ
ελοΫϙΠϯλϏοτͷΞυϨεۭؒΛࢦ͢ඞཁ͕͋Δ͕
্ҐCJUYʹݻఆ͞Ε͍ͯΔ
ʢ83".ͷ͏ͪYʙY''ׂ͕ΓͯΒΕΔʣ
͢ͳΘͪɺελοΫϙΠϯλϨδελ͕Y"ͷ߹ɺ
ελοΫϙΠϯλY"ʹͳΔ
ԋࢉ"ϨδελͰߦΘΕɺ9
:ϨδελΠϯσοΫεʹ༻͞ΕΔ
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εςʔλεϨδελ
CJU ໊শ ৄࡉ ༰
CJU / ωΨςΟϒ ԋࢉ݁ՌͷCJU͕ͷ࣌ʹηοτ
CJU 7 Φʔόʔϑϩʔ 1ԋࢉ݁Ռ͕ΦʔόʔϑϩʔΛىͨ࣌͜͠ʹηο
τ
CJU 3 ༧ࡁΈ ৗʹηοτ͞Ε͍ͯΔ
CJU # ϒϨʔΫϞʔυ #3,ൃੜ࣌ʹηοτɺ*32ൃੜ࣌ʹΫϦΞ
CJU % σγϚϧϞʔυ σϑΥϧτɺ#$%Ϟʔυ ະ࣮
CJU * *32ېࢭ *32ڐՄɺ*32ېࢭ
CJU ; θϩ ԋࢉ݁Ռ͕ͷ࣌ʹηοτ
CJU $ ΩϟϦʔ ΩϟϦʔൃੜ࣌ʹηοτ
εςʔλεϨδελͷৄࡉ
CJUৗʹͰɺCJU/&4Ͱະ࣮
*32ׂΓࠐΈɺ#3,ιϑτΤΞׂΓࠐΈ
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struct Status {
negative: bool,
overflow: bool,
reserved: bool,
break_mode: bool,
decimal_mode: bool,
interrupt: bool,
zero: bool,
carry: bool,
}
#[allow(non_snake_case)]
pub struct Registers {
A: u8,
X: u8,
Y: u8,
SP: u8,
PC: u16,
P: Status,
}
$16ͷϨδελͷ࣮
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ΞυϨε αΠζ ༻్
YʙY'' Y 83".
YʙY''' 83".ͷϛϥʔ
YʙY Y 116Ϩδελ
YʙY''' 116Ϩδελͷϛϥʔ
YʙY' Y "16*0ɺίϯτϩʔϥɺ%."
YʙY''' Y'& ֦ு30.
YʙY''' Y ֦ு3".
YʙY#''' Y ϓϩάϥϜ30.
Y$ʙY'''' Y ϓϩάϥϜ30.
$16ͷϝϞϦϚοϓ
Χηοτͷ
ϓϩάϥϜ30.
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impl<'a> CpuBus for Bus<'a> {
fn read_word(&mut self, addr: u16) -> u16 {
// …লུ…
}
fn read(&mut self, addr: u16) -> u8 {
match addr {
0x0000...0x07FF => self.work_ram.read(addr),
0x0800...0x1FFF => self.work_ram.read(addr - 0x0800),
0x2000...0x3FFF => self.ppu.read(addr - 0x2000),
0x4016 => self.keypad.read(),
0x4017 => unimplemented!(), // 2player controller
0x4000...0x401F => self.apu.read(addr - 0x4000),
0x6000...0x7FFF => unimplemented!(), // battery back up ram
0x8000...0xBFFF => self.program_rom.read(addr - 0x8000),
0xC000...0xFFFF if self.program_rom.size() <= 0x4000 => self.program_rom.read(addr - 0xC000)
0xC000...0xFFFF => self.program_rom.read(addr - 0x8000),
_ => panic!("[READ] There is an illegal address. (0x{:x}) access detected.", addr),
}
}
fn write(&mut self, addr: u16, data: u8) {
// …লུ…
}
}
$16$QV#VTϞδϡʔϧΛհ֤ͯ͠σόΠεʹΞΫηε͢ΔΑ͏ʹ
$16όεͷ࣮
ϝϞϦϚοϓΛө
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$16Ͳͷ൪͔Β
ͲͷλΠϛϯάͰىಈ͢Δ͔
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ׂΓࠐΈ
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ׂΓࠐΈ͕ൃੜ͢Δͱ$16ݱࡏͷ
ίϯςΩετΛελοΫʹୀආ͠
ࢦఆΞυϨεʢׂΓࠐΈϕΫλςʔϒϧʣ
ʹ֨ೲ͞Εͨ൪ΑΓ࣮ߦ։࢝ʢ࠶։ʣ͢Δ
ͷׂΓࠐΈ
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ͨͱ͑ɺϦηοτʢϑΝϛίϯͷ࢛֯ͷϘλϯͰ͢ͶʣׂΓࠐΈͷҰछͰ
Ϧηοτ͕ൃੜͨ͠߹Y'''$ɺY'''%͔ΒCJUͷΞυϨεΛϦʔυ͠
1$ʢϓϩάϥϜΧϯλʣʹηοτ͠ɺηοτ͞ΕͨΞυϨε͔Β࣮ߦ͠·͢
ׂΓࠐΈ ԼҐόΠτ ্ҐόΠτ ֓ཁ
/.* Y'''" Y'''#
ϊϯϚεΧϥϒϧׂΓࠐΈͱݴͬͯ$16ଆͰϚεΫͰ͖ͳ
ׂ͍ΓࠐΈͰ͢ɻ116ͷׂΓࠐΈग़ྗ৴߸͕ଓ͞Ε͍ͯ·
͢
3&4&5 Y'''$ Y'''% ϦηοτϘλϯԡԼ࣌ిݯೖ࣌ʹ͔͔ΔׂΓࠐΈͰ͢
*32ɺ#3, Y'''& Y''''
#3,ιϑτΣΞׂΓࠐΈͰ#3,໋ྩΛ࣮ߦͨ͠ͱ͖ʹൃ
ੜ͠·͢ɻ*32"16Χηοτʹଓ͞Ε͍ͯ·͢
ͷ߹ҎԼͷΑ͏ͳׂΓࠐΈཁҼ͕༻ҙ͞Ε͍ͯ·͢
ͷׂΓࠐΈ
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ϦηοτׂΓࠐΈͷ߹
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pub fn reset(registers: &mut T,
bus: &mut U) {
let pc = bus.read_word(0xFFFC);
registers.set_PC(pc);
}
جຊతʹϓϩάϥϜ30.Yʹஔ͞Ε͍ͯΔͷͰ
Y'''$͔ΒYɺY'''%͔ΒY͕Ϧʔυ͞ΕΔέʔε͕ଟ͍
ͦ͏͢Δͱ࣍αΠΫϧϓϩάϥϜ30.ͷઌ಄Ͱ͋ΔY͔Β࣮ߦ͞ΕΔ
ϦηοτׂΓࠐΈͷ࣮
Y'''$Λ্ҐόΠτ
Y'''%ΛԼҐόΠτ
ͱͨ͠CJUΛϦʔυ
Ϧʔυ͞ΕͨCJUͷΞυϨεΛ
1$ʢϓϩάϥϜΧϯλʣʹηοτ
࣍αΠΫϧηοτͨ͠ΞυϨε͔Β࣮ߦ͞ΕΔ
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/.*ͷ߹
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pub fn process_nmi(registers: &mut T, bus: &mut U) {
registers.set_break(false);
push((registers.get_PC() >> 8) as u8, registers, bus);
push(registers.get_PC() as u8, registers, bus);
push_status(registers, bus);
registers.set_interrupt(true);
let next = bus.read_word(0xFFFA);
registers.set_PC(next);
}
/.*ͷ࣮
1$ͷ্ҐCJUɺ1$ͷԼҐCJU
ͷॱʹελοΫʹ164)
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pub fn process_nmi(registers: &mut T, bus: &mut U) {
registers.set_break(false);
push((registers.get_PC() >> 8) as u8, registers, bus);
push(registers.get_PC() as u8, registers, bus);
push_status(registers, bus);
registers.set_interrupt(true);
let next = bus.read_word(0xFFFA);
registers.set_PC(next);
}
/.*ͷ࣮
εςʔλεϨδελΛ
ελοΫʹ164)
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pub fn process_nmi(registers: &mut T, bus: &mut U) {
registers.set_break(false);
push((registers.get_PC() >> 8) as u8, registers, bus);
push(registers.get_PC() as u8, registers, bus);
push_status(registers, bus);
registers.set_interrupt(true);
let next = bus.read_word(0xFFFA);
registers.set_PC(next);
}
/.*ͷ࣮
Y'''"
Y'''#͔ΒΞυϨεΛ
Ϧʔυ͠1$ʹηοτ
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ྫ͑/.*લͷ1$͕YɺεςʔλεϨδελ͕Y""
ελοΫϙΠϯλ͕Y''ͩͱ͢Δͱ/.*ޙͷελοΫҎԼͷΠϝʔδ
Y''
Y'&'
Y'&&
Y'&%
Y'&
ελοΫϙΠϯλ
ʜ
Y
Y
Y""
1$ͷ্ҐΞυϨε
1$ͷԼҐΞυϨε
εςʔλεϨδελ
࣍ճͷ164)͜͜ʹੵ·ΕΔ
/.*ͷ࣮ߦޙͷελοΫΠϝʔδ
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ͷ໋ྩ
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Ͱ"%$ Ճࢉ
46# ݮࢉ
ͳͲͷԋࢉͱ
ԋࢉͷద༻ઌద༻ݩʢϨδελϝϞϦʣΛܾఆ͢Δ
ΞυϨογϯάϞʔυ͕CJUͰදݱ͞Ε͍ͯΔ
ͷ໋ྩ
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ͨͱ͑
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Y"-%"ͱ͍͏Ϩδελ"ʹΛϩʔυ͢Δϩʔυ໋ྩͱ
*NNFEJBUFͱ͍͏ଈΛऔΓѻ͏ΞυϨογϯάϞʔυ
Y"-%"ͱ͍͏Ϩδελ"ʹΛϩʔυ͢Δϩʔυ໋ྩͱ
[FSPQBHFͱ͍͏্ҐCJU͕YͰ͋Δ൪Λૢ࡞͢ΔΞυϨογϯάϞʔυ
ಉ͡-%"໋ྩͰΦϖϥϯυΛଈͱͯ͠ѻͬͨΓ্ҐYͷΞυϨεΛѻͬͨΓ
ΞυϨγϯάϞʔυຖͷόϦΤʔγϣϯ͕͋Δ
ԋࢉͷछྨºΞυϨογϯάϞʔυͰ໋ྩཏͰ͖ͦ͏
-%"໋ྩ
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ུশ ໊લ ֓ཁ
JNQM *NQMJFE ϨδελΛૢ࡞͢Δ
" "DDVNVMBUPS "ϨδελΛૢ࡞͢Δ
*NNFEJBUF Φϖίʔυ͕֨ೲ͞Ε͍ͯͨ࣍ͷ൪ʹ֨ೲ͞Ε͍ͯΔΛσʔλͱͯ͠ѻ͏
[QH ;FSPQBHF
YΛ্ҐΞυϨεɺ1$ʢΦϖίʔυͷ࣍ͷ൪ʣʹ֨ೲ͞ΕͨΛԼҐΞυϨεͱͨ͠൪Λԋ
ࢉରͱ͢Δ
[QH
9
[QH
:
;FSPQBHF
JOEFYFE
YΛ্ҐΞυϨεɺ1$ʢΦϖίʔυͷ࣍ͷ൪ʣʹ֨ೲ͞Εͨʹ9Ϩδελ·ͨ:Ϩδελ
ΛՃࢉͨ͠ΛԼҐΞυϨεͱͨ͠൪Λԋࢉରͱ͢Δ
BCT "CTPMVUF
1$ʢΦϖίʔυͷ࣍ͷ൪ʣʹ֨ೲ͞ΕͨΛԼҐΞυϨεɺ1$ʢΦϖίʔυͷ࣍ͷ࣍ͷ൪ʣʹ
֨ೲ͞ΕͨΛ্ҐΞυϨεͱͨ͠൪Λԋࢉରͱ͢Δ
BCT
9
BCT
:
"CTPMVUF
JOEFYFE
"CTPMVUF"EESFTTJOHͰಘΒΕΔʹ9Ϩδελ·ͨ:ϨδελΛՃࢉͨ͠൪Λԋࢉରͱ͢Δ
SFM 3FMBUJWF 1$ʢΦϖίʔυͷ࣍ͷ൪ʣʹ֨ೲ͞Εͨͱͦͷ࣍ͷ൪ΛՃࢉͨ͠൪Λԋࢉରͱ͢Δ
9
*OE
*OEFYFE
*OEJSFDU
YΛ্ҐΞυϨεɺ1$ʢΦϖίʔυͷ࣍ͷ൪ʣʹ֨ೲ͞ΕͨΛԼҐΞυϨεͱͨ͠൪ʹϨ
δελ9ͷΛՃࢉɺͦͷ൪ͷΛԼҐΞυϨεɺͦͷ࣍ͷ൪ͷΛ্ҐΞυϨεͱͨ͠൪Λ
ԋࢉରͱ͢Δ
*OE
:
*OEJSFDU
JOEFYFE
YΛ্ҐΞυϨεɺ1$ʢΦϖίʔυͷ࣍ͷ൪ʣʹ֨ೲ͞ΕͨΛԼҐΞυϨεͱͨ͠൪ͷ
ΛԼҐΞυϨεɺͦͷ࣍ͷ൪ͷΛ্ҐΞυϨεͱͨ͠൪ʹϨδελ:ΛՃࢉͨ͠൪Λԋࢉର
ͱ͢Δ
*OE
"CTPMVUF
JOEFYFE
"CTPMVUF"EESFTTJOHͰಘΒΕΔ൪ʹ֨ೲ͞Ε͍ͯΔΛԼҐΞυϨεɺͦͷ࣍ͷ൪ʹ֨ೲ͞
Ε͍ͯΔΛ্ҐΞυϨεͱͨ͠൪Λԋࢉରͱ͢Δ
ΞυϨογϯάϞʔυ
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໋ྩද
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ଟ͍
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໋͍͔ͭ͘ྩΛϐοΫΞοϓ
ͯ͠આ໌͠·͢
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-%"JNN
ଈΛ"Ϩδελʹϩʔυ͢Δ
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Yʹͱ͍͏໋ྩ͕֨ೲ͞Ε͍ͯΔ߹
ϝϞϦͱ࣮ߦखॱҎԼͷΑ͏ʹͳΔʢ1$Yͱ͢Δʣ
-%"
ʢY"ʣ
Y
Y"
Y
ʜ
Y
-%""
$161$ ͢ͳΘͪY
͔Β໋ྩΛϑΣον͠1$Λ
ϑΣον݁ՌY"͔Β-%"JNNͰ͋Δͱผ͞ΕΔ
$16Y͔ΒΦϖϥϯυY"ΛϑΣον͠1$Λ
Ϩδελ"ʹY"Λ֨ೲ͠ɺ࣍ͷ໋ྩ
-%"JNN
࣍ͷ໋ྩ
͜ͷΛ"Ϩδελ
ʹϩʔυ͢Δ
1$
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pub fn lda_imm(operand: Word, registers: &mut T) {
registers
.set_A(operand as Data)
.update_negative_by(operand as Data)
.update_zero_by(operand as Data);
}
#[test]
fn test_lda_immediate() {
let mut reg = Registers::new();
lda_imm(0xA5, &mut reg);
assert_eq!(reg.get_A(), 0xA5);
}
ଈΛ"Ϩδελʹϩʔυ͢Δ
-%"JNN
"ϨδελʹΦϖϥϯυ
ʹηοτ
ηοτ͞ΕͨʹରԠ͢Δ
εςʔλεϑϥάΛηοτ
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-%"[QH
্ҐΛYԼҐΛΦϖϥϯυͱͨ͠ΞυϨεʹ
֨ೲ͞Ε͍ͯΔΛ"Ϩδελʹϩʔυ͢Δ
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Yʹͱ͍͏໋ྩ͕֨ೲɺYʹ
Y"͕֨ೲ͞Ε͍ͯΔ߹ϝϞϦͱ࣮ߦखॱҎԼͷΑ͏ʹͳΔ
ʢ1$Yͱ͢Δʣ
-%"
ʢY"ʣ
Y
Y
Y
ʜ
Y
-%"
$161$ ͢ͳΘͪY
͔Β໋ྩΛϑΣον͠1$Λ
ϑΣον݁ՌY"͔Β-%"[QHͰ͋Δͱผ͞ΕΔ
$16Y͔ΒΦϖϥϯυYΛϑΣον͠1$Λ
$16Y͔ΒY"ΛϦʔυ
Ϩδελ"ʹY"Λ֨ೲ͠ɺ࣍ͷ໋ྩ
Y"
Y
ʜ
Y
ʜ
Y
ᶃY൪ͷ༰ΛϦʔυ
ᶄY"Λ"Ϩδελʹηοτ
-%"[QH
࣍ͷ໋ྩ
1$
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pub fn lda(operand: Word, registers: &mut T, bus: &mut U) {
let computed = bus.read(operand);
registers
.set_A(computed)
.update_negative_by(computed)
.update_zero_by(computed);
}
#[test]
fn test_lda() {
let mut reg = Registers::new();
let mut bus = MockBus::new();
bus.mem[0xAA] = 0xA5;
lda(0xAA, &mut reg, &mut bus);
assert_eq!(reg.get_A(), 0xA5);
}
-%"[QH
্ҐΛYԼҐΛΦϖϥϯυͱͨ͠ΞυϨεʹ
֨ೲ͞Ε͍ͯΔΛ"Ϩδελʹϩʔυ͢Δϩʔυ͢Δ
ΦϖϥϯυͷΞυϨεͱͯ͠Ϧʔυ
Ϧʔυ͞ΕͨΛ"Ϩδελʹηοτ
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͜͜·Ͱͷ$16ͷಈ࡞Λ·ͱΊΔͱ
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Ϧηοτ
ແ͠
ແ͠
༗Γ
༗Γ
ׂΓࠐΈ
༗ແ
Φϖϥϯυ
༗ແ
Ϩδελͷ
ঢ়ଶΛୀආ
1$͔Β໋ྩ
ΛϑΣον 1$
1$͔ΒΦϖϥϯυΛ
ϑΣον 1$
໋ྩΛ࣮ߦ
ׂΓࠐΈϕΫλ
ͷΛ1$
ʹηοτ
$16ͷಈ࡞Πϝʔδ
Y'''$'''%ʹ
֨ೲ͞Εͨ൪͔Β։࢝
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pub fn run(
registers: &mut T,
bus: &mut U,
nmi: &mut bool,
) -> Data {
if *nmi {
process_nmi(registers, bus);
*nmi = false;
}
let code = fetch(registers, bus);
let ref map = opecode::MAP;
let code = &*map.get(&code).unwrap();
let operand = fetch_operand(&code, registers, bus);
match code.name {
Instruction::LDA if code.mode == Addressing::Immediate => lda_imm(operand, registers),
Instruction::LDA => lda(operand, registers, bus),
// …লུ…
}
code.cycle
}
$16ͷ࣮
ׂΓࠐΈͷνΣοΫ
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pub fn run(
registers: &mut T,
bus: &mut U,
nmi: &mut bool,
) -> Data {
if *nmi {
process_nmi(registers, bus);
*nmi = false;
}
let code = fetch(registers, bus);
let ref map = opecode::MAP;
let code = &*map.get(&code).unwrap();
let operand = fetch_operand(&code, registers, bus);
match code.name {
Instruction::LDA if code.mode == Addressing::Immediate => lda_imm(operand, registers),
Instruction::LDA => lda(operand, registers, bus),
// …লུ…
}
code.cycle
}
$16ͷ࣮
1$͔Β໋ྩΛϑΣον
σίʔυ
ࣙॻ͔Β໋ྩͷछผɾΞυϨογϯά
ϞʔυɺαΠΫϧͳͲΛҾ͍ͯ͘Δ
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$16ͷ࣮
let mut m = HashMap::new();
m.insert(0xA9, Opecode { name: Instruction::LDA, mode: Addressing::Immediate, cycle: cycles[0xA9] });
m.insert(0xA5, Opecode { name: Instruction::LDA, mode: Addressing::ZeroPage, cycle: cycles[0xA5] });
m.insert(0xB5, Opecode { name: Instruction::LDA, mode: Addressing::ZeroPageX, cycle: cycles[0xB5] });
m.insert(0xAD, Opecode { name: Instruction::LDA, mode: Addressing::Absolute, cycle: cycles[0xAD] });
m.insert(0xBD, Opecode { name: Instruction::LDA, mode: Addressing::AbsoluteX, cycle: cycles[0xBD] });
m.insert(0xB9, Opecode { name: Instruction::LDA, mode: Addressing::AbsoluteY, cycle: cycles[0xB9] });
m.insert(0xA2, Opecode { name: Instruction::LDX, mode: Addressing::Immediate, cycle: cycles[0xA2] });
m.insert(0xA6, Opecode { name: Instruction::LDX, mode: Addressing::ZeroPage, cycle: cycles[0xA6] });
// …লུ…
ΞυϨογϯάϞʔυαΠΫϧ
Λผ
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pub fn run(
registers: &mut T,
bus: &mut U,
nmi: &mut bool,
) -> Data {
if *nmi {
process_nmi(registers, bus);
*nmi = false;
}
let code = fetch(registers, bus);
let ref map = opecode::MAP;
let code = &*map.get(&code).unwrap();
let operand = fetch_operand(&code, registers, bus);
match code.name {
Instruction::LDA if code.mode == Addressing::Immediate => lda_imm(operand, registers),
Instruction::LDA => lda(operand, registers, bus),
// …লུ…
}
code.cycle
}
$16ͷ࣮
1$͔ΒΦϖϥϯυΛϑΣον
αΠΫϧΛฦ͢
-%"JNNҎ֎ͷ-%"໋ྩ
-%"JNN໋ྩ
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͋ͱ໋֤ͭͭ͜͜ྩΛ࣮$
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ͪͳΈʹޮͷ͍͍ςετํ๏
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ςετ30.Λ༻͢Δ
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OFTUFTUOFT
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116
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w ϐΫνϟʔϓϩηογϯάϢχοτͷུ
w 73".ͳͲͷ༰ΛͱʹεϓϥΠτͱόοΫάϥϯυ
ͷϨΠϠʔΛ߹ͯ͠ग़ྗ͢Δ
w $16ͷഒͷΫϩοΫͰಈ࡞
w ͍Θݪ࢝తͳ(16ͱ͍͍͍͔ͬͯ
116ͱ
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116ͷϝϞϦϚοϓ
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ΞυϨε αΠζ ֓ཁ
YʙY''' Y ύλʔϯςʔϒϧ
YʙY''' Y ύλʔϯςʔϒϧ
YʙY#' Y$ ωʔϜςʔϒϧ
Y$ʙY'' Y ଐੑςʔϒϧ
YʙY#' Y$ ωʔϜςʔϒϧ
Y$ʙY'' Y ଐੑςʔϒϧ
YʙY##' Y$ ωʔϜςʔϒϧ
Y#$ʙY#'' Y ଐੑςʔϒϧ
Y$ʙY'#' Y$ ωʔϜςʔϒϧ
Y'$ʙY''' Y ଐੑςʔϒϧ
YʙY&'' YY&''ͷϛϥʔ
Y'ʙY'' Y όοΫάϥϯυύϨοτςʔϒϧ
Y'ʙY'' Y εϓϥΠτύϨοτςʔϒϧ
Y'ʙY''' Y'Y''ͷϛϥʔ
116ͷϝϞϦϚοϓ
Χηοτͷ
ΩϟϥΫλʔ30.
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Α͘Θ͔Βͳ͍ςʔϒϧ
͕͍ͬͺ͍
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ϝϞϦϚοϓͷ֤߲ʹ͍ͭͯ
આ໌͍ͯ͘͠
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ωʔϜςʔϒϧ
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73".ྖҬஔ͞ΕΔɺը໘ʹରͯ͠ͲͷΑ͏ʹ
എܠλΠϧΛෑ͖٧ΊΔ͔ΛܾΊΔςʔϒϧ
ը໘ղ૾YϐΫηϧͳͷͰYϐΫηϧͷλΠϧ͕
Yʢ͢ͳΘͪຕʣͰෑ͖٧ΊΒΕΔ͜ͱʹͳΔ
ͳͷͰ
֤ωʔϜςʔϒϧͷαΠζ
Y$#ZUF
ωʔϜςʔϒϧͱ
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ͨͱ͑ҎԼͷը໘ͷ߹Y$ͷՕॴʹ)͕දࣔ͞͞ΕͯΔ
͢ͳΘͪɺɹɹʹ)Λද͢εϓϥΠτ൪߸Λॻ͖ࠐΊ͜ͷҐஔʹɹ͕දࣔ͞ΕΔ
ωʔϜςʔϒϧ
ͷઌ಄
λΠϧ
λΠϧ
ωʔϜςʔϒϧ
ͷ$൪ʹ૬
Y$൪ )
ωʔϜςʔϒϧ
ͷऴ
ωʔϜςʔϒϧͱ
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)FMMP
8PSMEͷαϯϓϧ30.ͷΩϟϥΫλʔ30.ͷ༰ҎԼͷΑ͏ʹͳ͍ͬͯΔ
)ͷΠϯσοΫεͳͷͰ
ɺɹɹʹ)Λද͢ΛϥΠτ͢ΕΑ͍
Y$൪
ωʔϜςʔϒϧͱ
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ଐੑςʔϒϧ
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എܠʹͲͷύϨοτΛద༻͢Δ͔Λܾఆ͢Δςʔϒϧ
ҙͱͯ͠ύϨοτYϐΫηϧͷϒϩοΫ୯Ґ
͢ͳΘͪʢYλΠϧʣʹύϨοτʢ̐৭ʣద༻͞ΕΔ
ϒϩοΫʹ͖ͭCJUͷใΛ͓࣋ͬͯΓɺը໘YͳͷͰ
YϒϩοΫϒϩοΫɺϒϩοΫʹ͖ͭCJU
ͳͷͰόΠτͷྖҬΛ༻͢Δ
ଐੑςʔϒϧͱ
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ྫ͑ଐੑςʔϒϧͷઌ಄൪Ͱ͋ΔY$൪͕Y&Ͱ͋Ε
@@@CͳͷͰҎԼͷΑ͏ʹϒϩοΫʹద༻͞ΕΔύϨοτ͕ܾఆ͢Δ
ԾʹҎԼͷύϨοτ͕ઃఆ͞Ε͍ͯͨͱ͢Δͱ
λΠϧ ϒϩοΫ
λΠϧ ϒϩοΫ
͜ͷϒϩοΫ Y
ͳͷͰ͕
༻Ͱ͖Δ
ύϨοτ
͜ͷϒϩοΫ
͜ͷϒϩοΫ
͜ͷϒϩοΫ
ଐੑςʔϒϧͱ
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ύϨοτςʔϒϧ
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എܠ༻ʹ৭ͷύϨοτ͕ͭʢY'ʙY''ʣ
εϓϥΠτ༻ʹ̐৭ͷύϨοτ͕ͭʢY'ʙY''ʣ
༻ҙ͞Ε͍ͯΔ
ͨͩ͠ɺ֤എܠ༻ύϨοτͷઌ಄ͷ৭എܠ৭
֤εϓϥΠτ༻ύϨοτͷઌ಄ͷ৭ಁ໌ͱͯ͠ѻΘΕΔ
ಉ࣌ʹ༻Ͱ͖Δ৭എܠ༻࠷େ৭
εϓϥΠτ༻࠷େ৭ಉ࣌ʹ༻Ͱ͖Δ
ύϨοτςʔϒϧͱ
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ͨͱ͑εύʔϚϦΦϒϥβʔεͷΦʔϓχϯάը໘ҎԼͷΑ͏ͳ
ύϨοτ͕ઃఆ͞Ε͍ͯΔ
ύϨοτY' ύϨοτY' ύϨοτY' ύϨοτY'$
ύϨοτY' ύϨοτY' ύϨοτY' ύϨοτY'$
എܠ༻ύϨοτʢഎܠ৭৭৭YύϨοτͰ৭ʣ
εϓϥΠτ༻ύϨοτʢ৭ಁ໌৭ͳͷͰ৭YύϨοτͰ৭ʣ
֤ςʔϒϧͷઌ಄
ಁ໌৭ͱͯ͠
ѻΘΕΔ
ಁ໌৭ ಁ໌৭ ಁ໌৭
֤ςʔϒϧͷઌ಄
എܠ৭
എܠ৭ എܠ৭ എܠ৭
ϚϦΦӈଆͷ৭Ͱදݱ͞Ε͍ͯΔ
ύϨοτςʔϒϧͱ
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ͱ৭ͱͷରԠʁ
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IUUQTXJLJOFTEFWDPNXJOEFYQIQ116@QBMFUUFTΑΓ
ϑΝϛίϯͷ৭116͕/54$৴߸Λੜ͢Δ্ؔ3(#Ͱͳ͘
ًʢϧϛφϯεʣͱ৭ʢΫϩϚʣͰදݱ͞ΕΔ
ͨͱ͑εʔύʔϚϦΦϒϥβʔεͷۭͷ৭YҎԼͷΑ͏ͳҙຯΛͭ
Y
@C
ৗʹ ً ৭
ύϨοτͷ৭
ً
৭
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116ͷϨδελΛோΊΔ
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ΞυϨε ֓ཁ
Y
Y
CJU આ໌
7#MBOL࣌ʹׂΓࠐΈΛग़ྗ
ৗʹ̍
εϓϥΠταΠζYY
എܠ༻ύλʔϯςʔϒϧΞυϨεYY
εϓϥΠτύλʔϯςʔϒϧΞυϨεYY
116ΞυϨεΠϯΫϦϝϯτ
ωʔϜςʔϒϧࢦఆ
CJU આ໌
എܠ৭CࠇCC੨C
εϓϥΠτΠωʔϒϧσΟηʔϒϧΠωʔϒϧ
എܠΠωʔϒϧσΟηʔϒϧΠωʔϒϧ
εϓϥΠτͷը໘ࠨϐΫηϧඳըඳը͠ͳ͍ඳը͢Δ
എܠͷը໘ࠨϐΫηϧඳըඳը͠ͳ͍ඳը͢Δ
σΟεϓϨΠλΠϓΧϥʔϞϊΫϩ
116ͷϨδελ 8SJUF
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ΞυϨε ֓ཁ
Y
εϓϥΠτϝϞϦΞυϨε
YΛܦ༝ͯ͠εϓϥΠτϝϞϦॻ͖ࠐΉϏοτΞυϨεΛࢦఆ
Y
εϓϥΠτϝϞϦσʔλ
YʹΑͬͯࢦఆ͞ΕͨεϓϥΠτϝϞϦΞυϨεσʔλΛॻ͖ࠐΉɻ
ॻ͖ࠐΉʹεϓϥΠτϝϞϦΞυϨεΠϯΫϦϝϯτ
͞ΕΔɻ
Y
എܠεΫϩʔϧΦϑηοτ
ճϥΠτΛߦ͏͜ͱͰ9ɺ:ͷॱʹεΫϩʔϧ͕ઃఆ͞ΕΔ
Y
116"%%3 116ϝϞϦΞυϨε
YΛܦ༝ͯ͠116ϝϞϦॻ͖ࠐΉϏοτΞυϨεΛࢦఆ͢Δɻ্ҐϏοτɺԼҐϏοτͷॱ
ʹॻ͖ࠐΉɻ
Y
116%"5" 116ϝϞϦσʔλ
YʹΑͬͯࢦఆ͞Εͨ116ϝϞϦΞυϨεσʔλΛॻ͖ࠐΉɻॻ͖ࠐΉʹϝϞϦΞυϨεΠ
ϯΫϦϝϯτ YͷϏοτʹΑͬͯɺ
͢Δɻ
116ͷϨδελ 8SJUF
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ΞυϨε ֓ཁ
Y
Y
εϓϥΠτϝϞϦσʔλ
YʹΑͬͯࢦఆ͞ΕͨεϓϥΠτϝϞϦΞυϨεσʔλΛϦʔυ͢Δ
Ϧʔυ͢ΔʹεϓϥΠτϝϞϦΞυϨεΠϯΫϦϝϯτ
͞ΕΔɻ
Y
116ϝϞϦσʔλ
YʹΑͬͯࢦఆ͞Εͨ116ϝϞϦΞυϨεͷσʔλΛϦʔυ͢Δ
Ϧʔυ͢ΔʹϝϞϦΞυϨεΠϯΫϦϝϯτ YͷϏοτʹΑͬͯɺ
͢Δɻ
CJU આ໌
7CMBOL࣌ʹ
εϓϥΠτώοτ࣌ʹ
εΩϟϯϥΠϯεϓϥΠτɹݸҎԼݸҎ্
3FTFSWFE
116ͷϨδελ 3FBE
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͔͜͜ΒॏཁͳͷΛൈ͖ग़ͯ͠
આ໌͍͖ͯ͠·͢
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தͰॏཁͳͷ
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116"%%3116%"5"Ϩδελ
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116ͷϝϞϦۭؒʢ73".ͳͲʣʹ$16͔ΒಡΈॻ͖͢ΔͨΊͷϨδελ
$16
116
116"%%3
116%"5"
73".
ΩϟϥΫλʔ30.
73".ΩϟϥΫλʔ30.116όεʹଓ͞Ε͓ͯΓ
$16͔ΒΞΫηεͰ͖ͳ͍
ͦͷͨΊ116"%%3116%"5"Λհͯ͠ಡΈॻ͖͢Δ
$16όε 116όε
116"%%3116%"5"Ϩδελ
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Ͳ͏ͬͯ͏͔
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116ͷϝϞϦۭؒʢ73".ͳͲʣʹ$16͔ΒಡΈॻ͖͢ΔͨΊͷϨδελ
116"%%3 Y
ʹ̎ճॻ͖ࠐΈ͜ͱͰ116ϝϞϦۭؒΛࢦఆ
ྫ͑Y'
YΛ116"%%3ʹॻ͖ࠐΉ͜ͱͰ
116ΞυϨε͕Y'ʹηοτ͞ΕΔ
116%"5" Y
ʹϦʔυϥΠτ͢Δ͜ͱͰ116"%%3
Ͱࢦఆͨ͠116ϝϞϦۭؒΛಡΈॻ͖͢Δ͜ͱ͕Ͱ͖Δ
ʢಡΈॻ͖Λ͢Δͱ116"%%3ࣗಈతʹ ·ͨ
ΠϯΫϦϝϯτ͞ΕΔʣ
116"%%3116%"5"Ϩδελ
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͜͜·Ͱͷ͔͠Β͢Δͱ
73".ͷ༰Λىʹ
Ճ͍͚ͯ͠
ϐΫηϧσʔλΛੜͰ͖ͦ͏
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ωʔϜςʔϒϧ͔ΒͲͷഎܠεϓϥΠτ͕ஔ͞Ε͍ͯΔ͔Ϧʔυ͢Δ
Ϧʔυ͞ΕͨεϓϥΠτ൪߸ΛݩʹΧηοτ͔Βը૾σʔλΛಡΜͰ͘Δ
ଐੑςʔϒϧ͔ΒഎܠεϓϥΠτʹద༻͞ΕΔύϨοτ൪߸ΛಡΜͰ͘Δ
ύϨοτςʔϒϧ͔ΒύϨοτͷ৭ΛಡΜͰ͘Δ
എܠεϓϥΠτͷCJUใΛݩʹύϨοτ͔Βண৭͢Δ
͜ͷखॱͰωʔϜςʔϒϧ͔Β
YQYͷϐΫηϧσʔλ͕ͭ͘ΕΔͣ
116ඳըखॱΠϝʔδ
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͏ͪΐͬͱ۩ମతͳྫ
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)FMMP
8PSMEͷ)ΛωʔϜςʔϒϧ͔ΒϐΫηϧσʔλʹͯ͠ΈΔྫ
ωʔϜςʔϒϧͷΛϦʔυ͠εϓϥΠτ൪߸ΛಘΔ
εϓϥΠτΩϟϥΫλʔ30.ʹ#ZUFͣͭฒΜͰ͍ΔͷͰ
YYY͔Β#ZUFϦʔυ͠εϓϥΠτΛΈཱͯΔ
Y$൪
Y
֘ͷ࠲ඪଐੑςʔϒϧͷΞυϨεY%"ʹ֘͢ΔͨΊ
73".ͷ͔ΒΞτϦϏϡʔτ͕Ϧʔυ͞ΕΔ
Y%"൪ Y
116ඳըखॱΠϝʔδ
͜ΜͳεϓϥΠτ
σʔλ͕ಘΒΕΔ
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Ϧʔυ͞ΕͨΞτϦϏϡʔτ͔Β֘ϙδγϣϯͷύϨοτ൪߸Λ
औΓग़͢ͱʹͳΔͷͰύϨοτ͕ద༻͞ΕΔ͜ͱ͕Θ͔Δ
ύϨοτ͢ͳΘͪ73".ͷ#ZUFಡΉͱ
͕ϦʔυͰ͖Δɻ͜ΕΛΧϥʔίʔυදʹద༻͢Δͱ࣍ͷ৭Ͱ͋Δ͜ͱ͕Θ͔Δ
ͨΊ3(#ʹม֤͠ϐΫηϧʹύϨοτΛద༻ͯ͠Δͱ
ύϨοτ̌
✨
C
Y'd Y'
Y
Y
Y
116ඳըखॱΠϝʔδ
)FMMP
8PSMEͷ)ΛωʔϜςʔϒϧ͔ΒϐΫηϧσʔλʹͯ͠ΈΔྫ
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impl Tile {
pub fn new(
vram: &Ram,
cram: &Ram,
palette: &P,
position: &SpritePosition,
config: &SpriteConfig,
) -> Self {
let block_id = get_block_id(position);
let sprite_id = get_sprite_id(&vram, position, config);
let attr = get_attribute(&vram, position, config);
let palette_id = (attr >> (block_id * 2)) & 0x03;
let sprite = build(&cram, sprite_id, config.offset_addr_by_background_table);
Tile { sprite, palette: palette.get(palette_id, PaletteType::Background) }
}
}
pub fn build(cram: &Ram, sprite_id: u8, offset: u16) -> Sprite {
let mut sprite: Sprite = (0..8).into_iter().map(|_| vec![0; 8]).collect();
for i in 0..16 {
for j in 0..8 {
let addr = (sprite_id as u16) * 16 + i + offset;
let ram = cram.read(addr);
if ram & (0x80 >> j) as u8 != 0 {
sprite[(i % 8) as usize][j] += (0x01 << (i / 8)) as u8;
}
}
}
sprite
}
116ඳըखॱΠϝʔδ
࠲ඪ͔ΒϒϩοΫ൪߸
Λࢉग़
࠲ඪͱωʔϜςʔϒϧ͔Β
εϓϥΠτ൪߸Λࢉग़
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impl Tile {
pub fn new(
vram: &Ram,
cram: &Ram,
palette: &P,
position: &SpritePosition,
config: &SpriteConfig,
) -> Self {
let block_id = get_block_id(position);
let sprite_id = get_sprite_id(&vram, position, config);
let attr = get_attribute(&vram, position, config);
let palette_id = (attr >> (block_id * 2)) & 0x03;
let sprite = build(&cram, sprite_id, config.offset_addr_by_background_table);
Tile { sprite, palette: palette.get(palette_id, PaletteType::Background) }
}
}
pub fn build(cram: &Ram, sprite_id: u8, offset: u16) -> Sprite {
let mut sprite: Sprite = (0..8).into_iter().map(|_| vec![0; 8]).collect();
for i in 0..16 {
for j in 0..8 {
let addr = (sprite_id as u16) * 16 + i + offset;
let ram = cram.read(addr);
if ram & (0x80 >> j) as u8 != 0 {
sprite[(i % 8) as usize][j] += (0x01 << (i / 8)) as u8;
}
}
}
sprite
}
116ඳըखॱΠϝʔδ
࠲ඪͱଐੑςʔϒϧ͔Β
ΞτϦϏϡʔτΛࢉग़
ΞτϦϏϡʔτͱϒϩοΫ൪߸͔Β
ύϨοτ൪߸Λࢉग़
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impl Tile {
pub fn new(
vram: &Ram,
cram: &Ram,
palette: &P,
position: &SpritePosition,
config: &SpriteConfig,
) -> Self {
let block_id = get_block_id(position);
let sprite_id = get_sprite_id(&vram, position, config);
let attr = get_attribute(&vram, position, config);
let palette_id = (attr >> (block_id * 2)) & 0x03;
let sprite = build(&cram, sprite_id, config.offset_addr_by_background_table);
Tile { sprite, palette: palette.get(palette_id, PaletteType::Background) }
}
}
pub fn build(cram: &Ram, sprite_id: u8, offset: u16) -> Sprite {
let mut sprite: Sprite = (0..8).into_iter().map(|_| vec![0; 8]).collect();
for i in 0..16 {
for j in 0..8 {
let addr = (sprite_id as u16) * 16 + i + offset;
let ram = cram.read(addr);
if ram & (0x80 >> j) as u8 != 0 {
sprite[(i % 8) as usize][j] += (0x01 << (i / 8)) as u8;
}
}
}
sprite
}
116ඳըखॱΠϝʔδ
εϓϥΠτ൪߸͔Β
YͷϐΫηϧσʔλΛ
࡞
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fn render_tile(&mut self, bg: &BackgroundCtx, x: usize, y: usize) {
let offset_x = (bg.scroll_x % 8) as i32;
let offset_y = (bg.scroll_y % 8) as i32;
for i in 0..8 {
for j in 0..8 {
let x = (x + j) as i32 - offset_x;
let y = (y + i) as i32 - offset_y;
if x >= 0 as i32 && 0xFF >= x && y >= 0 as i32 && y < 224 {
let color_id = bg.tile.palette[bg.tile.sprite[i][j] as usize];
let color = COLORS[color_id as usize];
let index = ((x + (y * 0x100)) * 4) as usize;
self.buf[index] = color.0;
self.buf[index + 1] = color.1;
self.buf[index + 2] = color.2;
if x < 8 {
self.buf[index + 3] = 0;
}
}
}
}
}
pub static COLORS: &'static [(u8, u8, u8)] = &[
(0x80, 0x80, 0x80), (0x00, 0x3D, 0xA6), (0x00, 0x12, 0xB0), (0x44, 0x00, 0x96), …লུ…
];
116ඳըखॱΠϝʔδ
ًɺ৭ͷσʔλΛ
3(#ʹม͢Δςʔϒϧ
εϓϥΠτɺύϨοτ
͔Β3(#"ͷϐΫηϧσʔλ
ʹม
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ϐΫηϧσʔλಘΒΕ͕ͨ
Ͳ͏ͬͯϒϥβʹදࣔ͢Δ͔
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$BOWBT
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const canvas = document.querySelector("canvas");
const ctx = canvas.getContext("2d");
Module.NES = { ctx, canvas, image: ctx.createImageData(256, 240) };
mergeInto(LibraryManager.library, {
canvas_render: function (ptr, len) {
Module.NES.buf = new Uint8Array(Module.HEAPU8.buffer, ptr, len);
Module.NES.image.data.set(Module.NES.buf);
Module.NES.ctx.putImageData(Module.NES.image, 0, 0);
},
})
+BWB4DSJQUଆͷॲཧ
FNTDSJQUFOΛ༻͍ͯ͠Δ߹
NFSHF*OUPΛ༻ͯ͠+4ؔΛ
3VTUଆʹެ։Ͱ͖Δ
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const canvas = document.querySelector("canvas");
const ctx = canvas.getContext("2d");
Module.NES = { ctx, canvas, image: ctx.createImageData(256, 240) };
mergeInto(LibraryManager.library, {
canvas_render: function (ptr, len) {
Module.NES.buf = new Uint8Array(Module.HEAPU8.buffer, ptr, len);
Module.NES.image.data.set(Module.NES.buf);
Module.NES.ctx.putImageData(Module.NES.image, 0, 0);
},
})
+BWB4DSJQUଆͷॲཧ
3VTUଆ͔ΒϐΫηϧσʔλͷ
ϙΠϯλͱ͞ΛΒͬͯ
*NBHF%BUBʹηοτ
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extern "C" {
fn canvas_render(ptr: *const u8, len: usize);
}
impl Renderer {
pub fn render(
&mut self,
background: &BackgroundField,
sprites: &SpritesWithCtx) {
// …লུ…
unsafe {
canvas_render(self.buf.as_ptr(), self.buf.len());
}
}
3VTU XBTN
ଆͷॲཧ
͜Μͳ;͏ʹݺΔ όοϑΝͷϙΠϯλͱ͞Λ
ڭ͑ͯ͋͛Δ
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͜ΕͰ73".ͷ༰Λ
$BOWBTʹॻ͖ग़ͤͦ͏
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͋ͱ$16ͱͷಉظͳͲ
λΠϛϯάपΓ
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ͦͷલʹ116ͷϝϞϦۭؒͷ
ҙΛ͝հ
ׂ
Ѫ
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116%"5"͔Β116ͷϝϞϦۭؒͷσʔλΛ$16͔ΒϦʔυͰ͖Δ͕
116෦ʹϦʔυόοϑΝ͕ೖ͍ͬͯͯ116͔Βͷσʔλग़ྗ̍αΠΫϧΕΔ
ͨͿΜҟͳΔΫϩοΫͷόε
Λ·͙ͨͨΊ'*'0ΛೖΕͯಉظΛͱͬͯΔ
ͨͩ͠ɺεϓϥΠτ3".ɺύϨοτςʔϒϧআ͘
ʢ͍͜͠ʜʣ
͜ΕʢଟʣεϓϥΠτ3".ɺύϨοτςʔϒϧ116ͷ෦ʹߏ͞Ε͍ͯͯ
όεΛ·͍ͨͰ͍ͳ͍ʢ$16όε݁ʣ͡Όͳ͍͔ͱਪଌ
ΤϛϡϨʔλ࡞ऀ͜ΕΛݟམͱ͢ͱপʹ·Δ
116ͷϝϞϦۭؒҙ
ׂ
Ѫ
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116ͷඳըλΠϛϯά
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MJOFQJYFM
جຊతʹ116DZDMFͰQJYFMͣͭඳը
ࠨ͔Βը໘ͷӈʹ
QJYFMͣͭඳը͍ͯ͘͠
EJTQMBZ
116ͷඳըλΠϛϯά
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MJOFQJYFM
࣍ͷϥΠϯͷඳը४උΛؚΊΔͱMJOF͋ͨΓαΠΫϧඞཁ
࣍ͷϥΠϯͷ४උ
ը໘ӈ·Ͱ౸ୡͨ͠Β
࣍ͷϥΠϯͷࠨʹΔ
ʢIWMBOL
EJTQMBZ
116ͷඳըλΠϛϯά
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MJOFQJYFM
ը໘ͷӈԼʹ౸ୡ MJOF
ͨ͠Βը໘ͷඳը͕ྃ
EJTQMBZ MJOF
116ඳըλΠϛϯά
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MJOFQJYFM
EJTQMBZ
࣍ͷඳըͷͨΊʹઌ಄Δ
͜ͷͨΊͷظؒΛͱݴ͍
MJOFͷ࣌ؒΛཁ͢Δ
Ұը໘ͷߋ৽ʹ
Y
αΠΫϧ
ඞཁͱͳΔ
͢ͳΘͪ
7CMBOL
ը໘ͷӈԼʹ౸ୡ MJOF
ͨ͠Βը໘ͷඳը͕ྃ
116ඳըλΠϛϯά
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MJOFQJYFM
͜ͷαΠΫϧΛඵؒʹճ '14
܁Γฦ͢͜ͱͰ
Ωϟϥഎܠ͕ͳΊΒ͔ʹಈ͖ήʔϜͱཱͯ͢͠Δ
EJTQMBZ MJOF
116ඳըλΠϛϯά
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116ͷσʔλߋ৽ͷ੍
ΤϛϡϨʔλ࡞ऀʹ
͋·Γؔͳ͍͔
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EJTQMBZ
ඳըதʹ73".Λॻ͖͑Δͱը໘͕ΈͩΕͯ͠·͏
ඳըத
116ͷσʔλߋ৽ͷ੍
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ඳըΛߦ͍ͬͯͳ͍7CMBOLதʹ73".Λॻ͖͑Δ
$16116εςʔλεϨδελ·ͨ/.*ʹͯ
7MBOLͰ͋Δ͜ͱΛΔ͜ͱ͕Ͱ͖Δ
EJTQMBZ
7CMBOLத
116ͷσʔλߋ৽ͷ੍
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pub fn run(&mut self, cycle: usize, nmi: &mut bool, mmc: &Mmc) -> bool {
let cycle = self.cycle + cycle;
if cycle < 341 {
self.cycle = cycle;
return false;
}
if self.line == 0 {
self.background.clear();
}
self.cycle = cycle - 341;
self.line = self.line + 1;
if self.line <= 240 && self.line % 8 == 0 {
self.background.build_line(
&self.ctx.vram,
&self.ctx.cram,
&self.ctx.palette,
(tile_x, tile_y),
);
}
// …লུ…
}
116ͷ࣮
116αΠΫϧΛՃࢉ͍͖ͯ͠
MJOF͔ྃͨ͠Λఆ
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pub fn run(&mut self, cycle: usize, nmi: &mut bool, mmc: &Mmc) -> bool {
let cycle = self.cycle + cycle;
if cycle < 341 {
self.cycle = cycle;
return false;
}
if self.line == 0 {
self.background.clear();
}
self.cycle = cycle - 341;
self.line = self.line + 1;
if self.line <= 240 && self.line % 8 == 0 {
self.background.build_line(
&self.ctx.vram,
&self.ctx.cram,
&self.ctx.palette,
(tile_x, tile_y),
);
}
// …লུ…
}
116ͷ࣮
ඳը۠ؒͰ͋Ε
ϥΠϯຖʹഎܠΛ
Έཱ͍ͯͯ͘
MJOFd
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pub fn run(&mut self, cycle: usize, nmi: &mut bool, mmc: &Mmc) -> bool {
//…লུ…
if self.line == 241 {
self.registers.set_vblank();
if self.registers.is_irq_enable() {
*nmi = true;
}
}
if self.line >= 262 {
self.registers.clear_vblank();
self.line = 0;
self.sprites = build_sprites(
&self.ctx.cram,
&self.ctx.sprite_ram,
&self.ctx.palette,
);
return true;
}
false
}
116ͷ࣮
ׂΓࠐΈ༗ޮͰ͋ΕWCMBOL
࣌ʹ/.*ΛΞΫςΟϒʹઃఆ
7#MBOLϑϥάΛηοτ
MJOF
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pub fn run(&mut self, cycle: usize, nmi: &mut bool, mmc: &Mmc) -> bool {
//…লུ…
if self.line == 241 {
self.registers.set_vblank();
if self.registers.is_irq_enable() {
*nmi = true;
}
}
if self.line >= 262 {
self.registers.clear_vblank();
self.line = 0;
self.sprites = build_sprites(
&self.ctx.cram,
&self.ctx.sprite_ram,
&self.ctx.palette,
);
return true;
}
false
}
116ͷ࣮
ϥΠϯͰҰը໘ͷ
ඳը͕
MJOF
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͋ͱ$16ͱ116ɺඳըͷಉظΛ
ͲͷΑ͏ʹͱΔ͔
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ٯࢉͯ͘͠ͱྑͦ͞͏
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ϑΝϛίϯ'14ɺ͢ͳΘͪNTຖʹ116͕ߋ৽ͨ͠
ը໘σʔλΛ࡞Ͱ͖Εྑ͍
લड़ͨ͠Α͏ʹը໘ͷߋ৽
116αΠΫϧ
ͳͷͰ
NTຖʹ116͕ը໘ੜ͢Δ·Ͱ
YαΠΫϧ
$16Λ࣮ߦͯ͠ΕΑ͍
116ͷαΠΫϧ$16ͷഒʢഒͷΫϩοΫ͕ೖྗʣ
$16ͱ116ͷಉظ
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࣌ؒ
NT NT
ը໘ͷσʔλ͕
Ͱ͖Δ·Ͱ
$16116Λ࣮ߦ
ը໘ͷσʔλ͕
Ͱ͖Δ·Ͱ
$16116Λ࣮ߦ
ը໘ͷσʔλ͕
Ͱ͖Δ·Ͱ
$16116Λ࣮ߦ
ඳը ඳը ඳը
͜ΜͳΠϝʔδͰ࣮ߦ͍ͨ͠
NT
$16ͱ116ͷಉظ
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SFRVFTU"OJNBUJPO'SBNFΛ͍͍ͨ
'14Ͱಈ࡞͢ΔΑ͏ʹ͍͍ײ͡ʹ͕Μͬͯ͘ΕΔͭ
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void emscripten_set_main_loop(
em_callback_func func,
int fps,
int simulate_infinite_loop)
FNTDSJQUFOΛ༻͍ͯ͠Δ߹͍͕ͭ͑͜Δ
ୈೋҾʹΛηοτ͢ΔͱΛ
ͬͯ͘ΕΔ
SFRVFTU"OJNBUJPO'SBNF
FNTDSJQUFO@TFU@NBJO@MPPQ
ୈࡾҾΛηοτ͢ΔͱແݶϧʔϓΛ
γϛϡϨʔτ
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MFUNBJO@MPPQcc\
nes::run(&mut ctx);
};
externs::set_main_loop_callback(main_loop);
pub fn run(ctx: &mut Context) {
loop {
// …লུ…
let cycle: u16 = cpu::run(&mut ctx.cpu_registers, &mut cpu_bus, &mut ctx.nmi) as u16
let is_ready = ctx.ppu.run((cycle * 3) as usize, &mut ctx.nmi, &ctx.mmc);
if is_ready {
if ctx.ppu.background.0.len() != 0 {
ctx.renderer.render(&ctx.ppu.background.0, &ctx.ppu.sprites);
}
break;
}
}
}
ϝΠϯϧʔϓͷ࣮
NTपظͰOFTSVOΛ࣮ߦ
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MFUNBJO@MPPQcc\
nes::run(&mut ctx);
};
externs::set_main_loop_callback(main_loop);
pub fn run(ctx: &mut Context) {
loop {
// …লུ…
let cycle: u16 = cpu::run(&mut ctx.cpu_registers, &mut cpu_bus, &mut ctx.nmi) as u16
let is_ready = ctx.ppu.run((cycle * 3) as usize, &mut ctx.nmi, &ctx.mmc);
if is_ready {
if ctx.ppu.background.0.len() != 0 {
ctx.renderer.render(&ctx.ppu.background.0, &ctx.ppu.sprites);
}
break;
}
}
}
ϝΠϯϧʔϓͷ࣮
ߋ৽ͨ͠ը໘ͷϐΫηϧσʔλͷ४උ͕
Ͱ͖Δ·Ͱ$16ͱ116Λ࣮ߦ͢Δ
$16ͷ࣮ߦαΠΫϧͷഒͷαΠΫϧΛ
͢ʢ116αΠΫϧͷมʣOΛ࣮ߦ
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MFUNBJO@MPPQcc\
nes::run(&mut ctx);
};
externs::set_main_loop_callback(main_loop);
pub fn run(ctx: &mut Context) {
loop {
// …লུ…
let cycle: u16 = cpu::run(&mut ctx.cpu_registers, &mut cpu_bus, &mut ctx.nmi) as u16
let is_ready = ctx.ppu.run((cycle * 3) as usize, &mut ctx.nmi, &ctx.mmc);
if is_ready {
if ctx.ppu.background.0.len() != 0 {
ctx.renderer.render(&ctx.ppu.background.0, &ctx.ppu.sprites);
}
break;
}
}
}
ϝΠϯϧʔϓͷ࣮
Ұը໘४උ͕Ͱ͖ͨΒϨϯμϦϯά
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͜͜·Ͱ͕࣮Ͱ͖Ε
)FMMP
8PSME͕ඳըͰ͖ͦ͏
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)&--0
803-%ͷαϯϓϧίʔυ
ΛݟͯΈΔ
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IUUQIQWFDUPSDPKQBVUIPST7"OFTTBNQMFIUNMΑΓ
)&--0
803-%
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)FMMP
8PSME
char NesMain()
{
const char palettes[] = {
0x0f, 0x00, 0x10, 0x20,
0x0f, 0x06, 0x16, 0x26,
0x0f, 0x08, 0x18, 0x28,
0x0f, 0x0a, 0x1a, 0x2a
};
const char string[] = "HELLO, WORLD!";
char i;
*(char*)0x2000 = 0x00;
*(char*)0x2001 = 0x00;
*(char*)0x2006 = 0x3f;
*(char*)0x2006 = 0x00;
for (i = 0; i < 0x10; i ++)
*(char*)0x2007 = palettes[i];
*(char*)0x2006 = 0x21;
*(char*)0x2006 = 0xc9;
for (i = 0; i < 13; i ++)
*(char*)0x2007 = string[i];
*(char*)0x2000 = 0x08;
*(char*)0x2001 = 0x1e;
while (1);
return 0;
}
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char NesMain()
{
const char palettes[] = {
0x0f, 0x00, 0x10, 0x20,
0x0f, 0x06, 0x16, 0x26,
0x0f, 0x08, 0x18, 0x28,
0x0f, 0x0a, 0x1a, 0x2a
};
const char string[] = "HELLO, WORLD!";
എܠύϨοτσʔλ
৭Λࢦఆ
ॻ͖ࠐΉจࣈྻ
)FMMP
8PSME
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*(char*)0x2000 = 0x00;
*(char*)0x2001 = 0x00;
*(char*)0x2006 = 0x3f;
*(char*)0x2006 = 0x00;
for (i = 0; i < 0x10; i ++)
*(char*)0x2007 = palettes[i];
ඳըׂΓࠐΈΛېࢭ
Y'
YΛYʹॻ͖ࠐΉ
͜ͱͰ116ΞυϨεY'Λࢦఆ
ͭ·ΓഎܠύϨοτςʔϒϧྖҬ
YʹσʔλΛॻ͖͜ΜͰ͍͘͜ͱͰ
ઌʹࢦఆͨ͠Y'͔ΒॱʹQBMFUUTͷσʔλΛసૹ͍ͯ͘͠
116ΞυϨεσʔλ͕ॻ͖ࠐ·ΕΔͨͼʹ116ଆͰࣗಈΠϯΫϦϝϯτ͞ΕΔ
͜ΕͰύϨοτσʔλͷసૹ0,
)FMMP
8PSME
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*(char*)0x2006 = 0x21;
*(char*)0x2006 = 0xc9;
for (i = 0; i < 13; i ++)
*(char*)0x2007 = string[i];
*(char*)0x2000 = 0x08;
*(char*)0x2001 = 0x1e;
while (1);
return 0;
}
Y
Y$ΛYʹॻ͖ࠐΉ
͜ͱͰ116ΞυϨεY$Λࢦఆ
Yʹॻ͖ࠐΉ͜ͱͰ
Y$ʙʹA)&--0
803-%A
Λసૹ
ඳը։࢝
͜ͷαϯϓϧҰը໘Λඳըͨ͠Β
ߋ৽͞Εͳ͍ͷͰແݶϧʔϓ
)FMMP
8PSME
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)FMMP
8PSME
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͜͜·ͰͰΑ͏͘
)&--0
803-%
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ଞͷ30.Λಈ͔͢ʹ·ͩ·ͩ
ػೳΛ࣮͠ͳͯ͘ͳΒͳ͍
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εΫϩʔϧ
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0x2000ʙ0x23BF 0x03C0 ωʔϜςʔϒϧ0
0x23C0ʙ0x23FF 0x0040 ଐੑςʔϒϧ0
0x2400ʙ0x27BF 0x03C0 ωʔϜςʔϒϧ1
0x27C0ʙ0x27FF 0x0040 ଐੑςʔϒϧ1
0x2800ʙ0x2BBF 0x03C0 ωʔϜςʔϒϧ2
0x2BC0ʙ0x2BFF 0x0040 ଐੑςʔϒϧ2
0x2C00ʙ0x2FBF 0x03C0 ωʔϜςʔϒϧ3
0x2FC0ʙ0x2FFF 0x0040 ଐੑςʔϒϧ3
116ͷϝϞϦϚοϓΛݟ͢ͱҎԼͷΑ͏ʹωʔϜςʔϒϧͱ
ଐੑςʔϒϧͷηοτΛͭʢ͢ͳΘͪը໘ʣ࣋ͯΔΑ͏ʹͳ͍ͬͯΔ
116ͷϝϞϦϚοϓ ࠶
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ը໘ͷςʔϒϧҎԼͷΑ͏ͳஔʹͳ͍ͬͯΔ
ωʔϜଐੑςʔϒϧ
YdY''
ωʔϜଐੑςʔϒϧ
YdY''
ωʔϜଐੑςʔϒϧ
YdY#''
ωʔϜଐੑςʔϒϧ
Y$dY'''
116ͷωʔϜଐੑςʔϒϧͷஔ
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ԣεΫϩʔϧήʔϜͷྫ
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ҎԼͷΑ͏ʹTDSPMM@YΛࢦఆ͢Δ͜ͱͰσΟεϓϨΠʹΓग़͢ྖҬΛมߋͰ͖Δ
ωʔϜ
ଐੑςʔϒϧ
YdY''
ωʔϜ
ଐੑςʔϒϧ
YdY''
σΟεϓϨΠʹҎԼͷ෦͕Γग़͞Εͯ
දࣔ͞ΕΔ
TDSPMM@Y
εΫϩʔϧͱදࣔྖҬͷؔ
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εΫϩʔϧؔ͢ΔϨδελͭ
ׂ
Ѫ
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ΞυϨε ֓ཁ
Y
എܠεΫϩʔϧΦϑηοτ
ճϥΠτΛߦ͏͜ͱͰ9ɺ:ͷॱʹεΫϩʔϧ͕ઃఆ͞ΕΔ
1164$30--Ϩδελ
αΠζ͕CJUͳͷͰd·ͰͷεΫϩʔϧ͕ઃఆͰ͖Δ
͜ͷͻͱͭͷϨδελͰYํɺZํ྆ํઃఆͰ͖ΔΑ͏ʹͳ͍ͬͯΔ
࠷ॳͷॻ͖ࠐΈ͕Yํɺೋճͷॻ͖ࠐΈ͕ZํͱͳΔ
QYͣͭεΫϩʔϧ͍ͨ͠߹͜ͷϨδελΛ੍ޚ͢Δ
͔͠͠ɺ͜ͷϨδελ͚ͩͰQYҎ্ͷεΫϩʔϧෆՄ
ׂ
Ѫ
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116$53-Ϩδελ
ΞυϨε ֓ཁ
Y
CJU આ໌
ʜ ʜলུʜ
ωʔϜςʔϒϧࢦఆ
116$53-Ϩδελ Y
ͷCJUωʔϜςʔϒϧΛࢦఆ͢Δ͜ͱ͕Ͱ͖Δ
ωʔϜ
ଐੑςʔϒϧ
ωʔϜ
ଐੑςʔϒϧ
ωʔϜ
ଐੑςʔϒϧ
ωʔϜ
ଐੑςʔϒϧ
ྫ͑ωʔϜςʔϒϧࢦఆ͕CͰ͋Ε͜ͷςʔϒϧ͕ࢦఆ͞Εͨ͜ͱʹͳΓ
YํʹQYεΫϩʔϧ͕Φϑηοτͨ͜͠ͱͱಉͱͳΔ
ઌͷ1164$30--ͱ߹ΘͤΕ
QYҎ্ͷεΫϩʔϧ͕Մೳ
ׂ
Ѫ
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͜ΕΒΛ͏ͱ໘ന͍දݱ͕Մೳʹ
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ϥελεΫϩʔϧ
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ඳըͷ్தͰεΫϩʔϧΛௐ͢Δ͜ͱͰը໘ͷ్த͔ΒεΫϩʔϧ͕Մೳ
εΫϩʔϧΛม͑Δ͜ͱͰͦΕͧΕҧͬͨͰεΫϩʔϧͤ͞Δ͜ͱՄೳ
ϥελεΫϩʔϧ
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εϓϥΠτ
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͜͜·Ͱઆ໌ͨ͠ͷഎܠͰ͕͢ɺΩϟϥΫλʔΛಈ͔͢ʹ
εϓϥΠτͱͯ͠ඳը͢Δඞཁ͕͋Δ
എܠ εϓϥΠτ
എܠYͷλΠϧΛYݸ
ը໘ʹෑ͖٧ΊͯεΫϩʔϧͰ
ಈ͔͢͜ͱ͕Ͱ͖Δ
εϓϥΠτͰ͋ΕYZࣗ༝ʹઃఆՄೳ
8PYJBOHOJÁPOJÁP.PKPO5XJOT
εϓϥΠτ
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εϓϥΠτͷσʔλͲ͜ʹॻ͔͘
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116εϓϥΠτ༻ͷྖҬεϓϥΠτ3".Λ͍࣋ͬͯΔ
116ͷϝϞϦϚοϓʹදݱ͞Ε͍ͯͳ͍͓ͦ͠Β͘116෦ͷྖҬʁ
ΞυϨε ֓ཁ
Y
εϓϥΠτϝϞϦΞυϨε
YΛܦ༝ͯ͠εϓϥΠτϝϞϦϦʔυϥΠτ͢ΔϏοτΞυϨεΛࢦఆ
Y
εϓϥΠτϝϞϦσʔλ
YʹΑͬͯࢦఆ͞ΕͨεϓϥΠτϝϞϦΞυϨεʹ͍ͨͯ͠ϦʔυϥΠτΛߦ͏
ΞΫηε͢ΔͨͼʹʹεϓϥΠτϝϞϦΞυϨεΠϯΫϦϝϯτ
͞ΕΔɻ
ΞΫηεํ๏116"%%3116%"5" YY
ͱ΄΅ಉ͡
ҟͳΔεϓϥΠτ3".ͷۭؒCJUͰදݱͰ͖ΔͷͰ
ΞυϨεΛઃఆ͢ΔͨΊʹ̎ճॻ͖ࠐΉඞཁͳ͍
#ZUF
εϓϥΠτ3".
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εϓϥΠτͭʹରͯ͠ҎԼͷ#ZUFͷઃఆΛ͍࣋ͬͯΔ
#ZUF ֓ཁ
:࠲ඪ
εϓϥΠτΠϯσοΫε
ΩϟϥΫλʔ30.ͷεϓϥΠτͷԿ൪ͷεϓϥΠτΛద༻͢Δ͔Λࢦఆ͢Δ
9࠲ඪ
CJU આ໌
ਨํసస͠ͳ͍స͢Δ
ਫฏํసస͠ͳ͍స͢Δ
දࣔ༏ઌॱҐεϓϥΠτΛ༏ઌഎܠΛ༏ઌ
༧
ύϨοτ൪߸CύϨοτCύϨοτ
CύϨοτCύϨοτ
εϓϥΠτ3".#ZUFͳͷͰηοτͰ͖Δ
࠷େεϓϥΠτ
εϓϥΠτ3".
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εϓϥΠτʹؔ͢ΔϢχʔΫͳ༷
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εϓϥΠτώοτ
ʢ௨শʰരʱʣ
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ΞυϨε ֓ཁ
Y
CJU આ໌
7CMBOL࣌ʹ
εϓϥΠτώοτ࣌ʹ
εΩϟϯϥΠϯεϓϥΠτɹݸҎԼݸҎ্
3FTFSWFE
εϓϥΠτ̌ώοτ
εϓϥΠτ3".ͷઌ಄ʹઃఆ͞ΕͨεϓϥΠτ͕
ϥΠϯόοϑΝʹల։͞ΕΔͱ116Ϩδελ Y
ͷʮεϓϥΠτ̌ώοτʯϑϥάཱ͕ͭVOΛ࣮ߦ
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༻్ʁ
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࣮͜͜ʹಁ໌ͳ̌ര͕ஔ͞Ε͍ͯΔ
8PYJBOHOJÁPOJÁP.PKPO5XJOT
εϓϥΠτ̌ώοτ
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ʮεϓϥΠτ̌ώοτʯϑϥάΛݕग़͔ͯ͠Β
εΫϩʔϧॲཧΛ։࢝͢Δ͜ͱʹΑΓ
ݻఆϔομΛ࣮ݱ͍ͯ͠Δ
ج४ͱͳΔεϓϥΠτʢ̌രʣ
͜͜ʹઃஔͯ͋͠Δ
8PYJBOHOJÁPOJÁP.PKPO5XJOT
εϓϥΠτ̌ώοτ
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εϓϥΠτͷ੍
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࣮εϓϥΠτಉҰϥΠϯ্ʹͭ·Ͱ͔͠ஔͰ͖ͳ͍
116ϥΠϯόοϑΝΛ͓࣋ͬͯΓ
ϥΠϯຖʹεϓϥΠτͱഎܠͷ߹Λߦ͍ඳը͍ͯ͠Δ
͜ͷॲཧίετ͕ߴ͘࠷େͭ·Ͱ͔͠߹Ͱ͖ͳ͍Β͍͠
࣌ͷϝϞϦͱίετͷ͔ؔΒ
ϑϨʔϜόοϑΝʹͰ͖ͳ͔ͬͨΜͩͱਪଌ
ΞυϨε ֓ཁ
Y
CJU આ໌
ʜ ʜ
εΩϟϯϥΠϯεϓϥΠτɹݸҎԼݸҎ্
ʜ ʜ
͜Ε্ه੍Λݕग़͢ΔͨΊͷػߏ
͕ͩɺόάͬͯΔͱͷӟ͋Γ
Ͳͷఔ༻͞Ε͍ͯͨͷ͔ෆ໌
εϓϥΠτͷ੍
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ൃੜ͢Δͱରࡦʢະݕূʣ
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࠶ݱڥ͕ͳ͍ͷͰະݕূͰ͕͢ʜ
υϥΰϯΫΤετͰ֗ͷதͰ̐ਓͷύʔςΟͱଜਓ͕
ԣҰઢʹฒͿͱϥΠϯ্ͷεϓϥΠτ͕ͱͳΓ
ύʔςΟϝϯόʔ͘͠ଜਓ͕ফ͑Δ
ͦͷͨΊɺιϑτΣΞͰਓΛߴʹදࣔඇදࣔΛ܁Γฦ͢͜ͱͰ
Ωϟϥ͕໓ͯ͠͠·͏ͷͷಉ࣌ʹදࣔ͢Δ͜ͱΛՄೳʹͨ͠
ͱ͍͏͕͋͠ΔΒ͍͠ʢཁݕূʣ
ΩϟϥεϓϥΠτͳͷͰ
ਓͳΒͿͱεϓϥΠτʹ
ͳͬͯ͠·͏
ଜਓ
ਓύʔςΟ
ൃੜ͢Δͱରࡦʢະݕূʣ
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Ͱɺ͓ΕͰ͔͍ͬϘεΈͨ͜ͱ͕͋Δͧʂ
ͱ͍͏ํ͍Δ͔
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IUUQTXXXZPVUVCFDPNXBUDI W1(1EP1T3ΑΓ
εϓϥΠτͰͳ͘
എܠͰඳը
͜ΕεϓϥΠτͰͳ͘എܠͰϘεΛදݱͯ͠ΔͬΆ͍
εϓϥΠτͰ͋Εෳࡶͳഎܠͷ্ʹ
߹ʢॏͳΓ͕දݱʣ͞Εͯදࣔ͞ΕΔ͕
എܠͰఢΛදݱͯ͠͠·͏ͱॏͶΔ͜ͱ͕Ͱ͖ͳ͍
ͳͷͰɺഎܠਅͬࠇʹͯ͠ΔͱࢥΘΕΔ
௨ৗഎܠͱͯ͠ඳը͢ΔͰ͋Ζ͏
ΛεϓϥΠτͱͯ͠ඳը
͔ͭӈ͔ΒࠨҠಈͤ͞Δ͜ͱ
ʹΑΓυϥΰϯ͕ͬͯ͘ΔΑ͏ʹ
දݱ
υϥΰϯͷ্ԼҠಈ
എܠεΫϩʔϧͰ࣮ݱ
͜͏͍͏ͭ
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εϓϥΠτͷసૹύϑΥʔϚϯε
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ͨͱ͑εϓϥΠτ3".#ZUFΛదͳͰຒΊΔ
؆୯ͳॲཧΛߟ͑ͯΈΔ
ldy $FF # 2cycle
copysprites:
sty $2004 # 4cycle
dey # 2cycle
bne copysprites # 2cycle
YDZDMF
dΛεϓϥΠτ3".
ʹॻ͖ࠐΉ
εϓϥΠτͷసૹύϑΥʔϚϯε
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εϓϥΠτഎܠಉ༷7CMBOLͷظؒʹసૹ͢Δඞཁ͕͋Δ
7CMBOLͷظؒ$16ͷαΠΫϧʹࢉ͢Δͱ
Y$ZDMF
116DMPDLMJOF
7CMBOLظؒʹ૬͢ΔMJOF
116ΫϩοΫ
$16ΫϩοΫͷഒͳͷͰ
ઌͷࢼࢉͰ$ZDMFͳͷͰʜ
͘͢͝୯७ͳॲཧͰ΄ͱΜͲͷ7CMBOLظؒΛઐ༗ͯ͠͠·͏ʜ
εϓϥΠτͷసૹύϑΥʔϚϯε
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ղܾࡦʜ
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%."
%JSFDUNFNPSZBDDFTT
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௨ৗ$16͕ϩʔυ໋ྩετΞ໋ྩΛ༻ͯ͠ϝϞϦؒͷ
σʔλసૹΛߦ͏ͱ͜ΖΛɺ$16Λհͣ͞σʔλసૹ
ͯ͘͠ΕΔपลػೳʢϖϦϑΣϥϧʣ
ΈࠐΈͳͲεϖοΫͳ$16Ͱ͍ํ͕·Ε
ύϑΥʔϚϯεΛҾ্͖͛ΒΕΔʢ͔͠Εͳ͍ʣॏ
ཁͳػߏ
%."ͱ
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͜Ε·Ͱʹ͕ࣗݟͨͷ
εΩϟφϝϞϦͷసૹϝϞϦϓϦϯλ
&UFISOFUίϯτϩʔϥϝϞϦͷసૹͳͲ
ͨͱ͑%."͕ͳ͍ͱҎԼͷΑ͏ͳखॱʹͳͬͨΓ͢Δ
$16
εΩϟφ
όε
3".
ᶃεΩϟφ͔ΒϦʔυ
ᶄ3".ϥΠτ
%."ͱ
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εΩϟφϝϞϦͷసૹྫ
%."͕͋ΕҎԼͷΑ͏ʹҰؾʹసૹͰ͖ͨΓ͢Δ
ʢ߹͕͋Δʣ
$16
εΩϟφ
όε
3".
ᶃεΩϟφ͔Β3".
సૹ
%."ͱ
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/&4ͷ߹Y൪ʹΛॻ͖ࠐΉ͜ͱͰ%."͕ىಈ͠
ॻ͖ࠐΜͩΛ্ҐΞυϨεɺYΛԼҐΞυϨεͱͨ͠ΞυϨ
εΛىʹ#ZUFΛεϓϥΠτ3".ʹసૹ͢Δ
͏ͪΐ͍۩ମతʹ͍͏ͱ
ྫ͑YʹYΛॻ͖ࠐΜͩ߹
Y͔ΒY''·Ͱͷ#ZUF͕
εϓϥΠτ3".ʹసૹ͞ΕΔ
సૹ$16αΠΫϧͰྃ͢ΔͷͰ
$16Ͱ#ZUFసૹ͢ΔΑΓߴʹసૹͰ͖Δ
ʢόε͕ઐ༗͞ΕΔͷͰ$16ͦͷؒఀࢭ͢Δʣ
%."
/&4ͷ%."͔ͳΓػೳ
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ίϯτϩʔϥ
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/&4ͷ߹Y൪ʹίϯτϩʔϥ͕ஔ͞Ε͍ͯΔ
Y൪ʹY
YΛॱʹॻ͖ࠐΉͱͦͷॠؒͷίϯτϩʔϥ
ͷ֤εΠονͷঢ়ଶ͕ϥον͞ΕY൪ΛϦʔυ͢Δ͜ͱͰ
ॱ࣍εΠονঢ়ଶΛಡΉ͜ͱ͕Ͱ͖Δ
ॳճϦʔυ࣌"Ϙλϯͷঢ়ଶɺ࣍ͷϦʔυͰ#Ϙλϯͷঢ়ଶʜ
ͱ͍ͬͨΑ͏ʹॱ࣍औಘ͢ΔͨΊશϘλϯͷঢ়ଶΛΔʹ
߹ܭճͷϦʔυ͕ඞཁ
Ϧʔυ ରԠϘλϯ
"
#
4&-&$5
45"35
্
Լ
ࠨ
ӈ
ίϯτϩʔϥ
̎1Y
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ϒϥβͰͷΤϛϡϨʔγϣϯ
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const convertKeyCode = keyCode => {
switch (keyCode) {
case 88:
return 0x01; // X A
case 90:
return 0x02; // Z B
case 65:
return 0x04; // A SELECT
case 83:
return 0x08; // S START
case 38:
return 0x10; // ↑ ↑
case 40:
return 0x20; // ↓ ↓
case 37:
return 0x40; // ← ←
case 39:
return 0x80; // → →
}
};
document.addEventListener("keydown", e => {
buf[size - 1] |= convertKeyCode(e.keyCode);
});
document.addEventListener("keyup", e => {
buf[size - 1] &= ~convertKeyCode(e.keyCode);
});
+BWB4DSJQUଆͷॲཧ
LFZEPXOVQΠϕϯτΛ
MJTUFO
OFTϑΝΠϧͷதΛͨ͢Ίͷ
όοϑΝͷඌʹΩʔೖྗΛ
௨͢ΔͨΊͷྖҬ#ZUF֬
อͦ͜͠ʹঢ়ଶΛॻ͖ࠐΉ
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let main_loop = || {
let key_state = buf[len - 1];
keypad.update(key_state);
// …লུ…
};
impl Keypad {
pub fn new() -> Self {
// …লུ…
}
pub fn update(&mut self, data: Data) {
self.buffer = data;
}
pub fn write(&mut self, data: Data) {
// …লུ…
}
pub fn read(&mut self) -> u8 {
let v = (0x01 << self.addr) as u8;
let ret = ((self.register & v) >> self.addr) as u8;
self.addr += 1;
ret
}
}
3VTU XBTN
ଆͷॲཧ
ϝΠϯϧʔϓͰ+4͔Βड͚औͬͨ
Ωʔͷঢ়ଶΛө
Y͕Πʔυ͞ΕΔͨͼ
"
#
4&-&$5ʜͷॱʹ
Λฦ͢Α͏ʹ͓ͯ͘͠
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"16 αϯυ
ׂ
Ѫ
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ϑΝϛίϯͷ߹"16 ΦʔσΟΦϓϩηογϯάϢχο
τʣͱ%"$ σΟδλϧΞφϩάίϯόʔλ
͕$16ʹ
Έࠐ·Ε͍ͯΔ
"16 αϯυ
νϟωϧۣܗ͕νϟωϧɺࡾ֯νϟωϧɺϊ
Πζνϟωɺ%1$.νϟωϧͷνϟωϧ͕༻Ͱ
͖ήʔϜͷԻ͜ͷνϟωϧͷΈ߹ΘͤʹΑΓදݱ͞
ΕΔ
ׂ
Ѫ
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IUUQTDPEFQFOJPHSFHIQFOYR8XR[
Πϝʔδ͜ͷDPEFQFO͕Θ͔Γ͍͢
"16 αϯυ
ׂ
Ѫ
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ϨδελΛோΊΔ
ׂ
Ѫ
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ΞυϨε 38 ༻్
Y 8 ۣܗ$)੍ޚϨδελ
Y 8 ۣܗ$)੍ޚϨδελ
Y 8 ۣܗ$)पϨδελ
Y 8 ۣܗ$)पϨδελ
Y 8 ۣܗ$)੍ޚϨδελ
Y 8 ۣܗ$)੍ޚϨδελ
Y 8 ۣܗ$)पϨδελ
Y 8 ۣܗ$)पϨδελ
Y 8 ࡾ੍֯ޚϨδελ
Y" 8 ࡾ֯पϨδελ
Y# 8 ࡾ֯पϨδελ
"16ͷϨδελҰཡ
ׂ
Ѫ
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ΞυϨε 38 ༻్
Y$ 8 ϊΠζ੍ޚϨδελ
Y& 8 ϊΠζཚϨδελ
Y' 8 ϊΠζ࣌ؒϨδελ
Y 8 %1$.੍ޚϨδελ
Y 8 %1$.੍ޚϨδελ
Y 8 %1$.੍ޚϨδελ
Y 8 %1$.੍ޚϨδελ
Y 38 Իνϟωϧ੍ޚϨδελ
Y 38 ϑϨʔϜΧϯλ
"16ͷϨδελҰཡ
ׂ
Ѫ
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ۣܗΛΈ͍ͯ͘
ׂ
Ѫ
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Τϯϕϩʔϓ
δΣωϨʔλ
εΠʔϓ λΠϚʔ
γʔέϯα
͞Χϯλ
ۣܗͷߏ
ׂ
Ѫ
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ΞυϨε ֓ཁ
Y
CJU આ໌
σϡʔςΟൺCC
CC
࠶ੜ࣌ؒΧϯλΠωʔϒϧ
ΤϯϕϩʔϓσΟηʔϒϧ
ϘϦϡʔϜ·ͨΤϯϕϩʔϓσΟόΠμ
σϡʔςΟൺ
ݮਰͷͳͲΛ੍ޚ
ۣܗϨδελ
ׂ
Ѫ
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ΞυϨε ֓ཁ
Y
CJU આ໌
εΠʔϓΠωʔϒϧ
पมԽ
पͷมԽํԼ্߱ঢ
पมߋྔͷ߹มԽͳ͠
पͷ૿ݮΛ੍ޚ
ۣܗϨδελ
ׂ
Ѫ
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ΞυϨε ֓ཁ
Y
Y
CJU આ໌
ύϧελΠϚʔԼҐCJU
CJU આ໌
ΩʔΦϑΧϯλ
ύϧελΠϚʔ্ҐCJU
पͱ࠶ੜ࣌ؒΛ੍ޚ
ۣܗϨδελ
ׂ
Ѫ
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Ͳ͏ͬͯΤϛϡϨʔτ͢Δ͔
ׂ
Ѫ
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8FC"VEJP
ׂ
Ѫ
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class Oscillator {
constructor(type) {
const AudioContext = window.AudioContext || window.webkitAudioContext
this.context = new AudioContext();
this.oscillator = this.createOscillator({ kind: type });
// …লུ…
}
createOscillator(options = {}) {
const oscillator = this.context.createOscillator();
// …লུ…
return oscillator;
}
setPulseWidth(pulseWidth) {
this.oscillator.setPeriodicWave(this.waves[`${pulseWidth}`]);
}
setFrequency(frequency) {
this.oscillator.frequency.value = frequency;
}
changeFrequency(frequency) {
this.oscillator.frequency.setValueAtTime(frequency, this.context.currentTime)
}
}
+BWB4DSJQUଆͷॲཧ
TFU1FSJPEJD8BWFͰ
ΧελϜܗΛ࡞Ͱ͖Δ
ׂ
Ѫ
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mergeInto(LibraryManager.library, {
start_oscillator: function (index) {
Module.NES.oscs[index].start();
},
set_oscillator_frequency: function (index, freq) {
Module.NES.oscs[index].setFrequency(freq);
},
change_oscillator_frequency: function (index, freq) {
Module.NES.oscs[index].changeFrequency(freq);
},
set_oscillator_volume: function (index, volume) {
Module.NES.oscs[index].setVolume(volume);
},
set_oscillator_pulse_width: function (index, width) {
Module.NES.oscs[index].setPulseWidth(width);
},
}
3VTU XBTN
ଆͷϒϦοδ
࠶ͼNFSHF*OUPͰ
3VTUଆެ։
ׂ
Ѫ
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͋ͱ)[)[ͷपظͱ
$16͔ΒͷΞΫηελΠϛϯά
पϘϦϡʔϜͷมಈ͕ൃੜ͢Δ
ͷͰͦͷλΠϛϯάͰݺΜͰΕ͍͍
ׂ
Ѫ
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pub fn update_counters(&mut self) {
// …লུ…
self.sweep_unit_counter += 1;
self.change_frequency();
}
pub fn update_envelope(&mut self) {
// …লུ…
unsafe {
set_oscillator_volume(self.index, self.get_volume());
};
}
fn change_frequency(&self) {
unsafe {
change_oscillator_frequency(self.index, self.frequency);
}
}
3VTU XBTN
ଆͷॲཧ
ׂ
Ѫ
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͜͜·ͰͰϑΝϛίϯຊମͷ
ϋʔυΣΞҰ௨Γ࣮Ͱ͖ͨͣ
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2͜ΕͰશͯͷ30.͕ಈ࡞͢Δ͔
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"͠ͳ͍
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..$
NFNPSZNBOBHFNFOUDPOUSPMMFS
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Χηοτʹ..$ͱݺΕΔ
ϝϞϦཧ༻ͷిࢠճ࿏Λ͍࣋ͬͯΔ
Χηοτ͕͋Δ
͜ͷػߏʹΑΓϓϩάϥϜ30.࠷େLJ#
ΩϟϥΫλʔ30.LJ#ͷ੍ݶ͑ΒΕΔ
..$
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..$ʹΑΔϝϞϦͷϚοϐϯάใ
Λ.BQQFSͱݺͿ
..$
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.BQQFSͷҰ෦ ·ͩ΄͔ʹ͋Δ
.BQQFS
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.BQQFS
࣮͍͕ͭ͜..$
ҎԼ.BQQFSͷج൘
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.BQQFS
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ຊདྷϥΠτͰ͖ͳ͍Ydͷۭؒ
ʹόϯΫ൪߸Λॻ͖ࠐΉ͜ͱͰ࠷େ,J#
·Ͱ30.Λ༻͢Δ͜ͱ͕Ͱ͖Δ
.BQQFS
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ͲΜͳճ࿏ʹͳͬͯΔ͔
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$)3
30.
$/
)$
""
""
%%
8&
)$ͰσʔλΛϥον͠
ΞυϨεʹม
ΩϟϥΫλʔ30.
όΠφϦΧϯλ
.BQQFSͷճ࿏
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impl Mmc {
pub fn new(mapper: u8, bank: u8) -> Self {
Mmc { bank, mapper }
}
pub fn set_bank(&mut self, bank: u8) {
self.bank = bank;
}
pub fn create_chram_addr(&self, addr: u16) -> u16 {
addr + (self.bank as u16) * 0x2000
}
}
.BQQFSͷ࣮
όϯΫͷઃఆ͔Β
ΩϟϥΫλʔ30.ͷΞυϨε
Λܭࢉͯ͠ฦ͢
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ରԠ30.Λ૿͢ʹ
֤ͭͭ͜͜.BQQFSͷରԠ͕ඞཁ
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͜ΕΛཏ͢Δͱͯ͢ͷ
30.͕ಈ࡞͢Δͣ
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ύϑΥʔϚϯε
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DISPNF
8FC"TTFNCMZWT+BWB4DSJQU
DISPNFDBOBSZ
pSFGPY
CJU
pSFGPYEFWFMPQFSFEJUJPO
C CJU
TBGBSJ
NT NT NT NT
NT NT
NT NT
NT
NT
UJNF
TNBMMFSJTCFUUFS
8FC"TTFNCMZ CPLVXFCSVTUZOFT
+BWB4DSJQU CPLVXFCqPXOFT
8FC"VEJP$BOWBTΛσΟηʔϒϧʹͨ͠ঢ়ଶͰ
ϝΠϯϧʔϓͷॲཧ࣌ؒճͷฏۉΛൺֱ
.BD#PPL"JS JODI
&BSMZ
()[*OUFM$PSFJ(#.)[%%3
HJLPOFT
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͍͞͝ʹ
!ϑΝϛίϯΤϛϡϨʔλҰਓͰ࣮͢ΔͷʹखࠒͳαΠζ
!$16%."ɺׂΓࠐΈͳͲͷಈ࡞ΛֶΔ
!ઌਓͷۤ࿑ͷยྡྷΛຯΘ͑Δ
!ࣗ99ݴޠͰͬͯΈΔ͔ʂͱࢥͬͯΒ͑ͨΒخ͍͠Ͱ͢
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͋Γ͕ͱ͏͍͟͝·ͨ͠✨