A Ruby implementation of the programming language ModanShogi.
execute a program: ./bin/shogimodan example.hello.modan
convert the program to LLVM assembly: ./bin/shogimodan example.hello.modan -l
execute a program through LLVM (super fast!): ./bin/shogimodan example.hello.modan -l | llvm-as | lli
ModanShogi is a so-called esoteric programming language.
This is a Hello World program written in ModanShogi:
▲９八銀 △９二玉 ▲６四歩 △６六銀 ▲６一歩 △同 玉 ▲６七歩 △６一玉
▲６八玉 △６三歩 ▲６九玉 △７七銀 ▲７五金 △７一玉 ▲４八銀 △４二玉
▲９六と △９八歩 ▲同 玉 △６七玉 ▲９五金 △９一玉 ▲６三金 △同 玉
▲６八金 △６二玉 ▲４一歩 △４三玉 ▲５五歩 △５三玉
[PLAYER][COL][ROW][PIECE] or labels (*1, *2, ...)
PLAYER: "▲" or "△"
COL: one of "１", "２", "３", "４", "５", "６", "７", "８", "９"
ROW: one of "一", "二", "三", "四", "五", "六", "七", "八", "九"
(exception: if COL and ROW are just same as the ones of the previous command, COL may be "同" and ROW may be " " (full-width space).)
PIECE: one of "と", "歩", "金", "銀", "桂", "香", "龍", "馬", "玉", "王", "飛", "角"
labels: specifies the place to jump by :jump_if, :jump_ifp
The ModanShogi VM has nine registers, R1 to R9, and a stack. The registers are initialized with numbers 1 to 9.
PIECE means the type of the command.
"と" => :mov X Y (register X = register Y)
"歩" => :add X Y (register X += register Y)
"金" => :sub X Y (register X -= register Y)
"銀" => :mul X Y (register X *= register Y)
"桂" => :div X Y (register X /= register Y; result is Float)
"香" => :mod X Y (register X %= register Y)
"龍" => :push X, (push the value of register X to the stack)
"馬" => :pop X, (pops from the stack and stores to register X)
"玉" => :putc X, (print the character whose charcode is
the value of register X)
"王" => :putn X, (print the value of the register X)
"飛" => :jump_if X Y, (if the value of the register X is not 0,
jump to the label whose number is
the value of the register Y)
"角" => :jump_ifp X Y, (if the value of the register X >= 0,
jump to the label whose number is
the value of the register Y)
COL and ROW are arguments of the command. They denotes a number from 1 to 9.
PLAYER is just ignored.