From dafc6784df0004f3fe302fd1d43ba3eaaf41ee2d Mon Sep 17 00:00:00 2001 From: Tim Vaughan Date: Wed, 1 Jun 2016 18:00:33 +1200 Subject: [PATCH] A bit of abstraction. --- src/forth.jl | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/src/forth.jl b/src/forth.jl index 8cc7547..da7321b 100644 --- a/src/forth.jl +++ b/src/forth.jl @@ -109,21 +109,27 @@ F_IMMED = 32 F_HIDDEN = 64 NFA_MARK = 128 +function dictWrite(ints::Array{Int64,1}) + mem[mem[H]:(mem[H]+length(ints)-1)] = ints + mem[H] += length(ints) +end +dictWrite(int::Int64) = dictWrite([int]) +dictWriteString(string::ASCIIString) = dictWrite([Int64(c) for c in string]) + function createHeader(name::AbstractString, flags::Int64) mem[mem[H]] = mem[mem[CURRENT]] mem[mem[CURRENT]] = mem[H] mem[H] += 1 - mem[mem[H]] = length(name) | flags | NFA_MARK; mem[H] += 1 - putString(name, mem[H]); mem[H] += length(name) + dictWrite(length(name) | flags | NFA_MARK) + dictWriteString(name) end function defPrimWord(name::AbstractString, f::Function; flags::Int64=0) createHeader(name, flags) codeWordAddr = mem[H] - mem[codeWordAddr] = defPrim(f, name=name) - mem[H] += 1 + dictWrite(defPrim(f, name=name)) return codeWordAddr end @@ -132,13 +138,9 @@ function defWord(name::AbstractString, wordAddrs::Array{Int64,1}; flags::Int64=0 createHeader(name, flags) addr = mem[H] - mem[mem[H]] = DOCOL - mem[H] += 1 + dictWrite(DOCOL) - for wordAddr in wordAddrs - mem[mem[H]] = wordAddr - mem[H] += 1 - end + dictWrite(wordAddrs) return addr end @@ -159,8 +161,8 @@ function defNewVar(name::AbstractString, initial::Array{Int64,1}; flags::Int64=0 codeWordAddr = mem[H] varAddr = mem[H] + 1 - mem[mem[H]] = DOVAR; mem[H] += 1 - mem[mem[H]:(mem[H]+length(initial)-1)] = initial; mem[H] += length(initial) + dictWrite(DOVAR) + dictWrite(initial) return varAddr, codeWordAddr end @@ -173,8 +175,8 @@ function defConst(name::AbstractString, val::Int64; flags::Int64=0) codeWordAddr = mem[H] - mem[mem[H]] = DOCON; mem[H] += 1 - mem[mem[H]] = val; mem[H] += 1 + dictWrite(DOCON) + dictWrite(val) return codeWordAddr end -- 2.20.1