Gadzira yako wega chirongwa chemutauro (I)

Mushure mekunyora chinyorwa chekutanga pa maitiro ekugadzira yako yega yekushandisa systemMumwe munhu akandiudza kana ndichigona kuita chinyorwa pa maitiro ekugadzira mutauro wechirongwa. Pakutanga handina kunyatsoteerera, asi ikozvino uye nedzimwe nzira ndakadzidza zvakawanda nezve kugadzirwa kwemitauro yekuronga. Saka ngatiitei mutauro wekutanga wepurogiramu, inokwenenzverwa zviri nyore mune mamwe mapurogiramu uye inoshanda nemuchina chaiwo watichagadzirawo. Nhasi tinofanirwa kugadzira muchina wakasarudzika chaiwo.

Iwe unogona kunge uri kushamisika: «Mushini chaiwo? "Asi hazvina kunyanya kuoma uye zvinoita kuti mapurogiramu adzokere shure?" Mukupesana, muchina wakareruka chaiwo uri nyore kwazvo uye unomhanyisa. Ndasarudza ngura semutauro wemuchina chaiwo. Asi chii icho ngura?

ngura kuisa mukati Linux Nenzira yakapusa. Zvisinei, hapana chikamu chepamutemo. Vashandisi ve Ubuntu unogona kuwedzera izvi zviviri PPA: ppa: hansjorg / ngura  y ppa: cmrx64 / nhumbi, vashandisi ve Arch Unogona kushandisa AUR (cargo-git ndiyo package inoisa zvese). Vamwe vese vanogona kushandisa:

curl -s https://static.rust-lang.org/rustup.sh | sudo sh

Mushini chaiwo unoshanda sei?

Kana iwe uchiziva mashandiro anoita nyika inosanganisa yakafanana chaizvo, neiyo stack kana iyo stack. Kana zvisiri, ndinokutsanangurira. Ngatifungei kodhi inotevera:

Dhinda 2 + 3

Iyo komputa hainzwisise zvinoreva 2 + 3, uye haina kuziva marongero aunofanirwa kutevedzera. Makomputa anoshanda nemabhatiri kana matura mune iyo data yakaunganidzwa uye ichienderera ichibviswa. Iyo kodhi mumuchina wedu chaiwo inofanira kutarisa chimwe chinhu seichi:

PUSH 2 PUSH 3 Wedzera Wedzera

Chaizvoizvo isu taizoisa iwo maviri pane stack kumusoro, iwo matatu futi. ADD yaizodhonza (i.e. bvisa kubva mudura uye uwane kukosha kwayo) zvinhu zviviri zvekupedzisira pane stack uye wedzera mhedzisiro kumusoro kwesaki. PRINT yaizotora chinhu chekupedzisira pane stack uye yochishandisa kuchiratidza kwatiri. Zvino ngatiitei izvo mukati ngura.

Isu tinofanirwa kutanga tatsanangura mutauro weiyo byte code, tinogona kushandisa iripo iripo senge iri mu Java kana the CLR ye .NET / Mono, asi isu tichagadzira imwe yakakosha.

https://gist.github.com/a01de8904fd39a442c20

Isu tinoshandisa hexadecimal notation pamirairo yega yega. Pamusoro takaisa # [kutora (KubvaPrimitive)], chinoshamisa che ngura uye zvichatibatsira gare gare kuti tikwanise kuenzanisa enumeration nema byte zvakananga.

Iye zvino isu tinofanirwa kuita basa rinoitisa yega yeaya mirairo. Kune izvi isu tinofanirwa kuverenga byte uye tichiienzanisa nemirairo yatinayo mukuverenga. Kana iwe ukawana chero zviripo, iwe unofanirwa kuita chako chiito.

https://gist.github.com/8950ce212a2de2f397f9

Isu tinoita izvozvo kuverenga yega yega yega uye kuzviita:

https://gist.github.com/12e24a1f0dd65e4cd65d

Sezvauri kuona, isu tinosiyanisa kana isu takapihwa iyo PUSH yekuraira (yedu INTEGER rairo) zvisati zvaitika, iyo inotevera byte ichaendeswa zvachose kudura. Ikoko tiri kushandisa mabasa maviri andisina kukudzidzisa, kuzvida.pop () y kuzvida.push (), izvo zviri pachena kuti zviri kutarisira kubata stack.

https://gist.github.com/54147f853a8a2b8c01d9

Izvo hazvina kuomarara, asi iyo pop basa ine kukanganisa kwekuona nzira. Muchokwadi, mu ngura, kana tikabvisa iwo maitirwo zvaizotipa kukanganisa kwekusanganisa. Iye zvino isu tinongofanirwa kudaidza muchirongwa perin (yedu chaiyo muchina) uye ita bytecode.

https://gist.github.com/99b1ab461318b3a644d0

Iyo bytecode inogona kuverengerwa kubva kufaira, asi pano kuitira nyore ndakaichengeta musiyano. Kana tikazviita, zvinotipa mhedzisiro inotarisirwa:

Perin v0.1 Perin VM inoita FlopFlip bytecode Kutanga PerinVM semuenzaniso PerinVM v0.1.0 Yakazara kukosha 5

Yese kodhi inowanikwa pa GitHub pasi pe Apache License 2.0: https://github.com/AdrianArroyoCalle/perin. Kuunganidza ivo vanofanirwa kuve nazvo kago yakaiswa uye isa:

kuchaja kuvaka && ./target/main

Muchitsauko chinotevera tichaona zvakawanda nezvemutauro wedu wepurogiramu.