A bunch of stuff

- refactor assembler to be more modular / extensible
- fix a bunch of bugs
- better error reporting
- stop using imgui in favour of lite commands
- in-editor hotswap & eval hotkeys
- machine:write in batches so bytes aren't dropped
- first cut at stack VM primitives
This commit is contained in:
Jeremy Penner 2020-09-20 13:55:06 -04:00
parent 4918867140
commit 1a93fc7e84
8 changed files with 1173 additions and 197 deletions

320
asm.fnl
View file

@ -23,7 +23,7 @@
(local base (bit.bor cc (bit.lshift aaa 5))) (local base (bit.bor cc (bit.lshift aaa 5)))
(fn [mode] (fn [mode]
(local bbb (. modemap mode)) (local bbb (. modemap mode))
(if bbb (bit.bor base (bit.lshift bbb 2)) nil))) (if bbb (bit.bor base (bit.lshift bbb 2)) nil)))
(fn indexed-modes [...] (fn indexed-modes [...]
(let [modemap {}] (let [modemap {}]
@ -49,7 +49,6 @@
(each [opcode aaa (pairs ops)] (each [opcode aaa (pairs ops)]
(tset opcodes opcode (aaabbbcc aaa 1 cc1-modes)) (tset opcodes opcode (aaabbbcc aaa 1 cc1-modes))
(tset opcodes :sta (aaabbbcc 4 1 (without-modes cc1-modes :imm))))) (tset opcodes :sta (aaabbbcc 4 1 (without-modes cc1-modes :imm)))))
; cc=2 ops ; cc=2 ops
(let [cc2-modes (indexed-modes nil :zp :a :abs nil :zp-x nil :abs-x)] (let [cc2-modes (indexed-modes nil :zp :a :abs nil :zp-x nil :abs-x)]
(each [opcode aaa (pairs {:asl 0 :rol 1 :lsr 2 :ror 3})] (each [opcode aaa (pairs {:asl 0 :rol 1 :lsr 2 :ror 3})]
@ -79,172 +78,193 @@
(match op (match op
[_ :a] [:a nil] [_ :a] [:a nil]
([_ imm] ? (= (type imm) "number")) [:imm imm] ([_ imm] ? (= (type imm) "number")) [:imm imm]
([op addr] ? (and (= (type addr) "string") (= (op:sub 1 1) "b"))) [:rel addr] ; branch ([opcode addr] ? (and (= (type addr) "string") (= (opcode:sub 1 1) "b"))) [:rel addr] ; branch
([_ addr] ? (= (type addr) "string")) [:addr addr]
[_ addr :x] [:addr-x addr] [_ addr :x] [:addr-x addr]
[_ addr :y] [:addr-y addr]
[_ [addr] :y] [:zp*-y addr] [_ [addr] :y] [:zp*-y addr]
[_ addr :y] [:addr-y addr]
[_ [addr :x]] [:zp-x* addr] [_ [addr :x]] [:zp-x* addr]
([_ addr] ? (= (type addr) "string")) [:addr addr]
[_ [addr]] [:abs* addr] [_ [addr]] [:abs* addr]
[_] [nil nil] [_] [nil nil]
_ (error (.. "Unrecognized syntax" (fv op))))) _ (error (.. "Unrecognized syntax" (fv op)))))
(fn parse-ops [block ops] ; dat - anything that takes up space in the assembled output (op, dw, db, etc)
(var index 1) ; takes the form [:op args]
(each [_ op (ipairs ops)] ; pdat - a parsed dat; takes the form {:type type :addr addr ...}
(if (= (type op) "string") (local dat-parser {})
(tset block.symbols op index) (fn parse-dats [block dats]
(let [opcode (. op 1)] (var index (+ (length block.pdats) 1))
(if (each [_ dat (ipairs dats)]
(. opcodes opcode) (if (= (type dat) "string")
(let [[mode arg] (parse-mode-arg op)] (tset block.symbols dat index)
(table.insert block.code {: opcode : mode : arg})) (let [opcode (. dat 1)
parser (. dat-parser opcode)
(= opcode :block) pdat
(let [ops (table.clone op)] (if
(table.remove ops 1) parser (parser dat)
(table.insert block.code (parse-ops {: opcode :code [] :symbols {}} ops))) (. opcodes opcode) (dat-parser.op dat)
(error (.. "Unrecognized opcode " (fv opcode))))]
(error (.. "Unrecognized opcode " (fv opcode)))) (table.insert block.pdats pdat)
(set index (+ index 1))))) (set index (+ index 1)))))
block) block)
(fn block [org ...] (parse-ops {:type :code : org :code [] :symbols {}} [...])) (fn dat-parser.op [op]
(fn db [org init] {:type :var : org : init :size 1}) (let [[mode arg] (parse-mode-arg op)]
(fn dw [org init] {:type :var : org : init :size 2}) {:type :op :opcode (. op 1) : mode : arg}))
(fn allot [org size] {:type :var : org : size})
(fn make-env [blocks] (fn dat-parser.block [block]
{: blocks (let [dats (table.clone block)]
:push (fn [self block] (table.remove dats 1)
(make-env (parse-dats {:type :block :pdats [] :symbols {}} dats)))
(-> (stream self.blocks)
(: :concat (one block)) (fn dat-parser.db [db] {:type :var :init (. db 2) :size 1})
(: :tolist)))) (fn dat-parser.dw [dw] {:type :var :init (. dw 2) :size 2})
:lookup (fn dat-parser.bytes [bytes] {:type :raw : bytes})
(fn [self name]
(-> (stream self.blocks) (fn make-env [block parent]
(: :reverse) {:parent parent
(: :map :block block
(fn [block] :is-zp? (fn [self name] (self.parent:is-zp? name))
(let [symbol (. block.symbols name)] :lookup-addr
(match (type symbol)
"number" (. block.code symbol)
"table" symbol
_ nil))))
(: :filter (fn [symbol] symbol))
(: :first)))
:lookup-block
(fn [self name] (fn [self name]
(local ipdat (. self.block.symbols name))
(print "looking up" name "in" self)
(if (if
(-> (stream self.blocks) (and ipdat (> ipdat (length self.block.pdats)))
(: :skip 1) (+ self.block.addr self.block.size)
(: :filter (fn [block] (. block.symbols name)))
(: :next))
(. self.blocks 2)
(. (. self.blocks 1) name)))
:is-zp? (fn [self name] (< (. (self:lookup-block name) :org) 0x100))})
(fn op-stream [env block] ipdat (. self.block.pdats ipdat :addr)
(-> (stream block.code)
(: :map (self.parent:lookup-addr name)))})
(fn [op]
(if (= op.opcode :block)
(: (one op env)
:concat (op-stream (env:push op) op))
(one op env))))
(: :flatten)))
(fn int8-to-bytes [i] (fn int8-to-bytes [i]
(string.char (bit.band i 0xff))) (string.char (bit.band i 0xff)))
(fn int16-to-bytes [i] (fn int16-to-bytes [i]
(string.char (bit.band i 0xff) (bit.band (bit.rshift i 8) 0xff))) (string.char (bit.band i 0xff) (bit.band (bit.rshift i 8) 0xff)))
(fn program [] (local pdat-processor {
{:symbols {} :op {}
:start-symbol :main :var {}
:add (fn [self name elem] (tset self.symbols name elem)) :raw {}
:block (fn [self name org ...] (self:add name (block org ...))) :block {}
:db (fn [self name org init] (self:add name (db org init))) })
:dw (fn [self name org init] (self:add name (dw org init)))
:allot (fn [self name org size] (self:add name (allot org size)))
:op-stream
(fn [self block] (op-stream (make-env [self block]) block))
:patch-addr-modes
(fn [self]
(each [name block (pairs self.symbols)]
(each [op env (: (self:op-stream block) :iter)]
(when (and op.mode (= (op.mode:sub 1 4) :addr))
(let [zp-mode (.. :zp (op.mode:sub 5))
abs-mode (.. :abs (op.mode:sub 5))
is-zp (and ((. opcodes op.opcode) zp-mode) (env:is-zp? op.arg))]
(set op.mode (if is-zp zp-mode abs-mode)))))))
:allocate
(fn [self org size org-addr]
(var addr (. org-addr org))
(when (= nil addr)
(tset org-addr org org)
(set addr org))
(tset org-addr org (+ addr size))
addr)
:allocate-var-block
(fn [self block org-addr]
(set block.addr (self:allocate block.org block.size org-addr)))
:allocate-code-block
(fn [self block org-addr]
(set block.addr (self:allocate block.org 0 org-addr))
(each [op env (: (self:op-stream block) :iter)]
(set op.addr (self:allocate block.org (opsize op) org-addr))))
:allocate-addresses
(fn [self]
(let [org-addr {}]
(each [name block (pairs self.symbols)]
(match block.type
:var (self:allocate-var-block block org-addr)
:code (self:allocate-code-block block org-addr)))))
:generate-var-block
(fn [self block]
(match block.size
1 (int8-to-bytes (or block.init 0))
2 (int16-to-bytes (or block.init 0))
n (string.rep "\0" n)))
:lookup-addr
(fn [self sym env]
(local op (env:lookup sym))
(if op
op.addr
(tonumber sym)))
:generate-op-arg
(fn [self op env]
(if
(= op.mode :imm) (int8-to-bytes op.arg)
(= op.mode :rel)
(int8-to-bytes (- (self:lookup-addr op.arg env) (+ op.addr 2)))
(= (size op.mode) 2) (int8-to-bytes (self:lookup-addr op.arg env))
(= (size op.mode) 3) (int16-to-bytes (self:lookup-addr op.arg env))
""))
:generate-op
(fn [self op env]
(let [bytegen (. opcodes op.opcode)]
(if bytegen
(.. (int8-to-bytes (bytegen op.mode)) (self:generate-op-arg op env))
"")))
:generate-code-block
(fn [self block]
(var bytes "")
(each [op env (: (self:op-stream block) :iter)]
(set bytes (.. bytes (self:generate-op op env))))
(set block.bytes bytes))
:generate-bytes
(fn [self]
(each [name block (pairs self.symbols)]
(match block.type
:var (self:generate-var-block block)
:code (self:generate-code-block block))))
:assemble
(fn [self]
(self:patch-addr-modes)
(self:allocate-addresses)
(self:generate-bytes))})
program (fn pdat-processor.op.patch [op env]
(when (and op.mode (= (op.mode:sub 1 4) :addr))
(let [zp-mode (.. :zp (op.mode:sub 5))
abs-mode (.. :abs (op.mode:sub 5))
is-zp (and ((. opcodes op.opcode) zp-mode) (env:is-zp? op.arg))]
(set op.mode (if is-zp zp-mode abs-mode)))))
(fn pdat-processor.raw.size [raw] (length raw.bytes))
(fn pdat-processor.op.size [op] (size op.mode))
(fn pdat-processor.var.size [d] d.size)
(fn pdat-processor.op.bytes [op env]
(local bytegen (. opcodes op.opcode))
(pp op)
(if bytegen
(let [opbyte (bytegen op.mode)
argbytes
(if
(= op.mode :imm) (int8-to-bytes op.arg)
(= op.mode :rel)
(int8-to-bytes (- (env:lookup-addr op.arg env) (+ op.addr 2)))
(= (size op.mode) 2) (int8-to-bytes (env:lookup-addr op.arg env))
(= (size op.mode) 3) (int16-to-bytes (env:lookup-addr op.arg env))
"")]
(if opbyte
(.. (int8-to-bytes opbyte) argbytes)
(error (.. op.opcode " doesn't support mode " op.mode))))
""))
(fn pdat-processor.var.bytes [d env]
(match d.size
1 (int8-to-bytes (or d.init 0))
2 (int16-to-bytes (or d.init 0))
n (string.rep "\0" n)))
(fn process-pdat [pdat process default ...]
(local processor (. pdat-processor pdat.type process))
(if processor (processor pdat ...) default))
(fn pdat-processor.block.symbols [block]
(lume.keys block.symbols))
(fn pdat-processor.block.patch [block env]
(local block-env (make-env block env))
(each [_ pdat (ipairs block.pdats)]
(process-pdat pdat :patch nil block-env)))
(fn pdat-processor.block.allocate [block addr]
(var size 0)
(set block.addr addr)
(each [_ pdat (ipairs block.pdats)]
(set pdat.addr (+ addr size))
(process-pdat pdat :allocate nil pdat.addr)
(local pdatsize (process-pdat pdat :size pdat.size))
(set pdat.size pdatsize)
(set pdat.addr (+ addr size))
(set size (+ size pdatsize)))
(set block.size size))
(fn pdat-processor.block.generate [block env]
(local block-env (make-env block env))
(var bytes "")
(each [_ pdat (ipairs block.pdats)]
(process-pdat pdat :generate nil block-env)
(local pdatbytes (process-pdat pdat :bytes pdat.bytes block-env))
(set pdat.bytes pdatbytes)
(set bytes (.. bytes pdatbytes)))
(set block.bytes bytes))
(fn program []
{:type :program
:org-to-block {}
:symbol-to-org {}
:start-symbol :main
:org
(fn [self org]
(var block (. self.org-to-block org))
(when (not block)
(set block {:type :block :pdats [] :symbols {}})
(tset self.org-to-block org block))
{: block
:append (fn [self ...] (parse-dats self.block [...]) self)})
:is-zp?
(fn [self name]
(local org (. self.symbol-to-org name))
(if (not= org nil)
(< org 0x100)
(< (tonumber name) 0x100)))
:lookup-addr
(fn [self name]
(print "looking up" name "in" self)
(local org (. self.symbol-to-org name))
(local addr (and org (: (make-env (. self.org-to-block org) self) :lookup-addr name)))
(if (not= addr nil)
addr
(tonumber name)))
:pass
(fn [self passname]
(each [org block (pairs self.org-to-block)]
(: self passname org block)))
:gather-symbols
(fn [self org block]
(each [_ name (ipairs (process-pdat block :symbols []))]
(tset self.symbol-to-org name org)))
:patch (fn [self org block] (process-pdat block :patch nil self))
:allocate (fn [self org block] (process-pdat block :allocate nil org))
:generate (fn [self org block] (process-pdat block :generate nil self))
:assemble
(fn [self]
(self:pass :gather-symbols)
(self:pass :patch)
(self:pass :allocate)
(self:pass :generate))
:upload
(fn [self machine]
(each [org block (pairs self.org-to-block)]
(machine:write org block.bytes)))
})
{: program}

780
lume.lua Normal file
View file

@ -0,0 +1,780 @@
--
-- lume
--
-- Copyright (c) 2020 rxi
--
-- Permission is hereby granted, free of charge, to any person obtaining a copy of
-- this software and associated documentation files (the "Software"), to deal in
-- the Software without restriction, including without limitation the rights to
-- use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-- of the Software, and to permit persons to whom the Software is furnished to do
-- so, subject to the following conditions:
--
-- The above copyright notice and this permission notice shall be included in all
-- copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-- SOFTWARE.
--
local lume = { _version = "2.3.0" }
local pairs, ipairs = pairs, ipairs
local type, assert, unpack = type, assert, unpack or table.unpack
local tostring, tonumber = tostring, tonumber
local math_floor = math.floor
local math_ceil = math.ceil
local math_atan2 = math.atan2 or math.atan
local math_sqrt = math.sqrt
local math_abs = math.abs
local noop = function()
end
local identity = function(x)
return x
end
local patternescape = function(str)
return str:gsub("[%(%)%.%%%+%-%*%?%[%]%^%$]", "%%%1")
end
local absindex = function(len, i)
return i < 0 and (len + i + 1) or i
end
local iscallable = function(x)
if type(x) == "function" then return true end
local mt = getmetatable(x)
return mt and mt.__call ~= nil
end
local getiter = function(x)
if lume.isarray(x) then
return ipairs
elseif type(x) == "table" then
return pairs
end
error("expected table", 3)
end
local iteratee = function(x)
if x == nil then return identity end
if iscallable(x) then return x end
if type(x) == "table" then
return function(z)
for k, v in pairs(x) do
if z[k] ~= v then return false end
end
return true
end
end
return function(z) return z[x] end
end
function lume.clamp(x, min, max)
return x < min and min or (x > max and max or x)
end
function lume.round(x, increment)
if increment then return lume.round(x / increment) * increment end
return x >= 0 and math_floor(x + .5) or math_ceil(x - .5)
end
function lume.sign(x)
return x < 0 and -1 or 1
end
function lume.lerp(a, b, amount)
return a + (b - a) * lume.clamp(amount, 0, 1)
end
function lume.smooth(a, b, amount)
local t = lume.clamp(amount, 0, 1)
local m = t * t * (3 - 2 * t)
return a + (b - a) * m
end
function lume.pingpong(x)
return 1 - math_abs(1 - x % 2)
end
function lume.distance(x1, y1, x2, y2, squared)
local dx = x1 - x2
local dy = y1 - y2
local s = dx * dx + dy * dy
return squared and s or math_sqrt(s)
end
function lume.angle(x1, y1, x2, y2)
return math_atan2(y2 - y1, x2 - x1)
end
function lume.vector(angle, magnitude)
return math.cos(angle) * magnitude, math.sin(angle) * magnitude
end
function lume.random(a, b)
if not a then a, b = 0, 1 end
if not b then b = 0 end
return a + math.random() * (b - a)
end
function lume.randomchoice(t)
return t[math.random(#t)]
end
function lume.weightedchoice(t)
local sum = 0
for _, v in pairs(t) do
assert(v >= 0, "weight value less than zero")
sum = sum + v
end
assert(sum ~= 0, "all weights are zero")
local rnd = lume.random(sum)
for k, v in pairs(t) do
if rnd < v then return k end
rnd = rnd - v
end
end
function lume.isarray(x)
return type(x) == "table" and x[1] ~= nil
end
function lume.push(t, ...)
local n = select("#", ...)
for i = 1, n do
t[#t + 1] = select(i, ...)
end
return ...
end
function lume.remove(t, x)
local iter = getiter(t)
for i, v in iter(t) do
if v == x then
if lume.isarray(t) then
table.remove(t, i)
break
else
t[i] = nil
break
end
end
end
return x
end
function lume.clear(t)
local iter = getiter(t)
for k in iter(t) do
t[k] = nil
end
return t
end
function lume.extend(t, ...)
for i = 1, select("#", ...) do
local x = select(i, ...)
if x then
for k, v in pairs(x) do
t[k] = v
end
end
end
return t
end
function lume.shuffle(t)
local rtn = {}
for i = 1, #t do
local r = math.random(i)
if r ~= i then
rtn[i] = rtn[r]
end
rtn[r] = t[i]
end
return rtn
end
function lume.sort(t, comp)
local rtn = lume.clone(t)
if comp then
if type(comp) == "string" then
table.sort(rtn, function(a, b) return a[comp] < b[comp] end)
else
table.sort(rtn, comp)
end
else
table.sort(rtn)
end
return rtn
end
function lume.array(...)
local t = {}
for x in ... do t[#t + 1] = x end
return t
end
function lume.each(t, fn, ...)
local iter = getiter(t)
if type(fn) == "string" then
for _, v in iter(t) do v[fn](v, ...) end
else
for _, v in iter(t) do fn(v, ...) end
end
return t
end
function lume.map(t, fn)
fn = iteratee(fn)
local iter = getiter(t)
local rtn = {}
for k, v in iter(t) do rtn[k] = fn(v) end
return rtn
end
function lume.all(t, fn)
fn = iteratee(fn)
local iter = getiter(t)
for _, v in iter(t) do
if not fn(v) then return false end
end
return true
end
function lume.any(t, fn)
fn = iteratee(fn)
local iter = getiter(t)
for _, v in iter(t) do
if fn(v) then return true end
end
return false
end
function lume.reduce(t, fn, first)
local started = first ~= nil
local acc = first
local iter = getiter(t)
for _, v in iter(t) do
if started then
acc = fn(acc, v)
else
acc = v
started = true
end
end
assert(started, "reduce of an empty table with no first value")
return acc
end
function lume.unique(t)
local rtn = {}
for k in pairs(lume.invert(t)) do
rtn[#rtn + 1] = k
end
return rtn
end
function lume.filter(t, fn, retainkeys)
fn = iteratee(fn)
local iter = getiter(t)
local rtn = {}
if retainkeys then
for k, v in iter(t) do
if fn(v) then rtn[k] = v end
end
else
for _, v in iter(t) do
if fn(v) then rtn[#rtn + 1] = v end
end
end
return rtn
end
function lume.reject(t, fn, retainkeys)
fn = iteratee(fn)
local iter = getiter(t)
local rtn = {}
if retainkeys then
for k, v in iter(t) do
if not fn(v) then rtn[k] = v end
end
else
for _, v in iter(t) do
if not fn(v) then rtn[#rtn + 1] = v end
end
end
return rtn
end
function lume.merge(...)
local rtn = {}
for i = 1, select("#", ...) do
local t = select(i, ...)
local iter = getiter(t)
for k, v in iter(t) do
rtn[k] = v
end
end
return rtn
end
function lume.concat(...)
local rtn = {}
for i = 1, select("#", ...) do
local t = select(i, ...)
if t ~= nil then
local iter = getiter(t)
for _, v in iter(t) do
rtn[#rtn + 1] = v
end
end
end
return rtn
end
function lume.find(t, value)
local iter = getiter(t)
for k, v in iter(t) do
if v == value then return k end
end
return nil
end
function lume.match(t, fn)
fn = iteratee(fn)
local iter = getiter(t)
for k, v in iter(t) do
if fn(v) then return v, k end
end
return nil
end
function lume.count(t, fn)
local count = 0
local iter = getiter(t)
if fn then
fn = iteratee(fn)
for _, v in iter(t) do
if fn(v) then count = count + 1 end
end
else
if lume.isarray(t) then
return #t
end
for _ in iter(t) do count = count + 1 end
end
return count
end
function lume.slice(t, i, j)
i = i and absindex(#t, i) or 1
j = j and absindex(#t, j) or #t
local rtn = {}
for x = i < 1 and 1 or i, j > #t and #t or j do
rtn[#rtn + 1] = t[x]
end
return rtn
end
function lume.first(t, n)
if not n then return t[1] end
return lume.slice(t, 1, n)
end
function lume.last(t, n)
if not n then return t[#t] end
return lume.slice(t, -n, -1)
end
function lume.invert(t)
local rtn = {}
for k, v in pairs(t) do rtn[v] = k end
return rtn
end
function lume.pick(t, ...)
local rtn = {}
for i = 1, select("#", ...) do
local k = select(i, ...)
rtn[k] = t[k]
end
return rtn
end
function lume.keys(t)
local rtn = {}
local iter = getiter(t)
for k in iter(t) do rtn[#rtn + 1] = k end
return rtn
end
function lume.clone(t)
local rtn = {}
for k, v in pairs(t) do rtn[k] = v end
return rtn
end
function lume.fn(fn, ...)
assert(iscallable(fn), "expected a function as the first argument")
local args = { ... }
return function(...)
local a = lume.concat(args, { ... })
return fn(unpack(a))
end
end
function lume.once(fn, ...)
local f = lume.fn(fn, ...)
local done = false
return function(...)
if done then return end
done = true
return f(...)
end
end
local memoize_fnkey = {}
local memoize_nil = {}
function lume.memoize(fn)
local cache = {}
return function(...)
local c = cache
for i = 1, select("#", ...) do
local a = select(i, ...) or memoize_nil
c[a] = c[a] or {}
c = c[a]
end
c[memoize_fnkey] = c[memoize_fnkey] or {fn(...)}
return unpack(c[memoize_fnkey])
end
end
function lume.combine(...)
local n = select('#', ...)
if n == 0 then return noop end
if n == 1 then
local fn = select(1, ...)
if not fn then return noop end
assert(iscallable(fn), "expected a function or nil")
return fn
end
local funcs = {}
for i = 1, n do
local fn = select(i, ...)
if fn ~= nil then
assert(iscallable(fn), "expected a function or nil")
funcs[#funcs + 1] = fn
end
end
return function(...)
for _, f in ipairs(funcs) do f(...) end
end
end
function lume.call(fn, ...)
if fn then
return fn(...)
end
end
function lume.time(fn, ...)
local start = os.clock()
local rtn = {fn(...)}
return (os.clock() - start), unpack(rtn)
end
local lambda_cache = {}
function lume.lambda(str)
if not lambda_cache[str] then
local args, body = str:match([[^([%w,_ ]-)%->(.-)$]])
assert(args and body, "bad string lambda")
local s = "return function(" .. args .. ")\nreturn " .. body .. "\nend"
lambda_cache[str] = lume.dostring(s)
end
return lambda_cache[str]
end
local serialize
local serialize_map = {
[ "boolean" ] = tostring,
[ "nil" ] = tostring,
[ "string" ] = function(v) return string.format("%q", v) end,
[ "number" ] = function(v)
if v ~= v then return "0/0" -- nan
elseif v == 1 / 0 then return "1/0" -- inf
elseif v == -1 / 0 then return "-1/0" end -- -inf
return tostring(v)
end,
[ "table" ] = function(t, stk)
stk = stk or {}
if stk[t] then error("circular reference") end
local rtn = {}
stk[t] = true
for k, v in pairs(t) do
rtn[#rtn + 1] = "[" .. serialize(k, stk) .. "]=" .. serialize(v, stk)
end
stk[t] = nil
return "{" .. table.concat(rtn, ",") .. "}"
end
}
setmetatable(serialize_map, {
__index = function(_, k) error("unsupported serialize type: " .. k) end
})
serialize = function(x, stk)
return serialize_map[type(x)](x, stk)
end
function lume.serialize(x)
return serialize(x)
end
function lume.deserialize(str)
return lume.dostring("return " .. str)
end
function lume.split(str, sep)
if not sep then
return lume.array(str:gmatch("([%S]+)"))
else
assert(sep ~= "", "empty separator")
local psep = patternescape(sep)
return lume.array((str..sep):gmatch("(.-)("..psep..")"))
end
end
function lume.trim(str, chars)
if not chars then return str:match("^[%s]*(.-)[%s]*$") end
chars = patternescape(chars)
return str:match("^[" .. chars .. "]*(.-)[" .. chars .. "]*$")
end
function lume.wordwrap(str, limit)
limit = limit or 72
local check
if type(limit) == "number" then
check = function(s) return #s >= limit end
else
check = limit
end
local rtn = {}
local line = ""
for word, spaces in str:gmatch("(%S+)(%s*)") do
local s = line .. word
if check(s) then
table.insert(rtn, line .. "\n")
line = word
else
line = s
end
for c in spaces:gmatch(".") do
if c == "\n" then
table.insert(rtn, line .. "\n")
line = ""
else
line = line .. c
end
end
end
table.insert(rtn, line)
return table.concat(rtn)
end
function lume.format(str, vars)
if not vars then return str end
local f = function(x)
return tostring(vars[x] or vars[tonumber(x)] or "{" .. x .. "}")
end
return (str:gsub("{(.-)}", f))
end
function lume.trace(...)
local info = debug.getinfo(2, "Sl")
local t = { info.short_src .. ":" .. info.currentline .. ":" }
for i = 1, select("#", ...) do
local x = select(i, ...)
if type(x) == "number" then
x = string.format("%g", lume.round(x, .01))
end
t[#t + 1] = tostring(x)
end
print(table.concat(t, " "))
end
function lume.dostring(str)
return assert((loadstring or load)(str))()
end
function lume.uuid()
local fn = function(x)
local r = math.random(16) - 1
r = (x == "x") and (r + 1) or (r % 4) + 9
return ("0123456789abcdef"):sub(r, r)
end
return (("xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx"):gsub("[xy]", fn))
end
function lume.hotswap(modname)
local oldglobal = lume.clone(_G)
local updated = {}
local function update(old, new)
if updated[old] then return end
updated[old] = true
local oldmt, newmt = getmetatable(old), getmetatable(new)
if oldmt and newmt then update(oldmt, newmt) end
for k, v in pairs(new) do
if type(v) == "table" then update(old[k], v) else old[k] = v end
end
end
local err = nil
local function onerror(e)
for k in pairs(_G) do _G[k] = oldglobal[k] end
err = lume.trim(e)
end
local ok, oldmod = pcall(require, modname)
oldmod = ok and oldmod or nil
xpcall(function()
package.loaded[modname] = nil
local newmod = require(modname)
if type(oldmod) == "table" then update(oldmod, newmod) end
for k, v in pairs(oldglobal) do
if v ~= _G[k] and type(v) == "table" then
update(v, _G[k])
_G[k] = v
end
end
end, onerror)
package.loaded[modname] = oldmod
if err then return nil, err end
return oldmod
end
local ripairs_iter = function(t, i)
i = i - 1
local v = t[i]
if v ~= nil then
return i, v
end
end
function lume.ripairs(t)
return ripairs_iter, t, (#t + 1)
end
function lume.color(str, mul)
mul = mul or 1
local r, g, b, a
r, g, b = str:match("#(%x%x)(%x%x)(%x%x)")
if r then
r = tonumber(r, 16) / 0xff
g = tonumber(g, 16) / 0xff
b = tonumber(b, 16) / 0xff
a = 1
elseif str:match("rgba?%s*%([%d%s%.,]+%)") then
local f = str:gmatch("[%d.]+")
r = (f() or 0) / 0xff
g = (f() or 0) / 0xff
b = (f() or 0) / 0xff
a = f() or 1
else
error(("bad color string '%s'"):format(str))
end
return r * mul, g * mul, b * mul, a * mul
end
local chain_mt = {}
chain_mt.__index = lume.map(lume.filter(lume, iscallable, true),
function(fn)
return function(self, ...)
self._value = fn(self._value, ...)
return self
end
end)
chain_mt.__index.result = function(x) return x._value end
function lume.chain(value)
return setmetatable({ _value = value }, chain_mt)
end
setmetatable(lume, {
__call = function(_, ...)
return lume.chain(...)
end
})
return lume

View file

@ -1,5 +1,5 @@
(local command (require "core.command")) (local command (require "core.command"))
(local spawn (require "spawn")) (local {: spawn : kill } (require "spawn"))
(local socket (require "socket")) (local socket (require "socket"))
(local json (require "dkjson")) (local json (require "dkjson"))
@ -7,14 +7,14 @@
(local debug-port 8769) (local debug-port 8769)
(local reg-write-format { (local reg-write-format {
:ip "k%06X " :ip " k%06X"
:a "a%04X " :a " a%04X"
:x "x%04X " :x " x%04X"
:y "y%04X " :y " y%04X"
:s "s%04X " :s " s%04X"
:d "d%04X " :d " d%04X"
:b "b%02X " :b " b%02X"
:psr "p%06X " :psr " p%06X"
}) })
(local machine (local machine
{:boot {:boot
@ -23,12 +23,10 @@
(set self.pid (spawn [:nixGL gsplus-path :-debugport (tostring debug-port)])))) (set self.pid (spawn [:nixGL gsplus-path :-debugport (tostring debug-port)]))))
:die :die
(fn [self] (fn [self]
(self:disconnect)
(when self.pid (when self.pid
(spawn [:kill (tostring self.pid)]) (kill (- self.pid) 1)
(set self.pid nil) (set self.pid nil)))
(when self.socket
(self.socket:close)
(set self.socket nil))))
:connect :connect
(fn [self] (fn [self]
(when (not self.socket) (when (not self.socket)
@ -61,7 +59,13 @@
:get-bp (fn [self] (self:cmd-response "A")) :get-bp (fn [self] (self:cmd-response "A"))
:write :write
(fn [self addr bytes] (fn [self addr bytes]
(self:cmd-response (.. "7" (string.format "%06X" addr) (bytes:tohex)))) (var bytes-to-write bytes)
(var addrout addr)
(while (> (length bytes-to-write) 0)
(local bytesout (bytes-to-write:sub 1 50))
(self:cmd-response (.. "7" (string.format "%06X" addrout) (bytesout:tohex)))
(set bytes-to-write (bytes-to-write:sub 51))
(set addrout (+ addrout 50))))
:setreg :setreg
(fn [self regvals] (fn [self regvals]
(var bytes "5") (var bytes "5")
@ -75,9 +79,7 @@
(var retries 5) (var retries 5)
(while (> retries 0) (while (> retries 0)
(local reg (. (self:getreg) 1 :data)) (local reg (. (self:getreg) 1 :data))
(pp reg.PC.fromhex)
(local pc (reg.PC:fromhex)) (local pc (reg.PC:fromhex))
(pp)
(local curr-k (reg.K:fromhex)) (local curr-k (reg.K:fromhex))
(print (curr-k:tohex) (pc:tohex)) (print (curr-k:tohex) (pc:tohex))
(if (and (= pc addr) (= curr-k (or k 0))) (if (and (= pc addr) (= curr-k (or k 0)))
@ -90,10 +92,13 @@
"gsplus:launch-gsplus" #(machine:boot) "gsplus:launch-gsplus" #(machine:boot)
"gsplus:boot" (fn [] "gsplus:boot" (fn []
(machine:boot) (machine:boot)
(while (not machine.socket) (pp (machine:connect))) (while (not machine.socket) (machine:connect))
(machine:hello) (machine:hello)
) )
}) })
(command.add (fn [] machine.pid) {
"gsplus:kill-gsplus" #(machine:die)
})
(command.add (fn [] machine.socket) { (command.add (fn [] machine.socket) {
"gsplus:disconnect" #(machine:disconnect) "gsplus:disconnect" #(machine:disconnect)
"gsplus:hello" #(machine:hello) "gsplus:hello" #(machine:hello)

View file

@ -3,6 +3,7 @@ fennel = require("lib.fennel")
table.insert(package.loaders, fennel.make_searcher({correlate=true})) table.insert(package.loaders, fennel.make_searcher({correlate=true}))
fv = require("lib.fennelview") fv = require("lib.fennelview")
pp = function(x) print(fv(x)) end pp = function(x) print(fv(x)) end
lume = require("lume")
function reload(modname) function reload(modname)
package.loaded[modname] = nil package.loaded[modname] = nil

View file

@ -10,6 +10,8 @@ int open(const char *pathname, int flags, int mode);
int close(int fd); int close(int fd);
int dup2(int oldfd, int newfd); int dup2(int oldfd, int newfd);
int execvp(const char *file, char *const argv[]); int execvp(const char *file, char *const argv[]);
int kill(pid_t pid, int sig);
pid_t setsid(void);
]]) ]])
local bor = bit.bor local bor = bit.bor
@ -25,6 +27,7 @@ local function spawn(args)
if pid < 0 then if pid < 0 then
error("fork failed " .. ffi.errno()) error("fork failed " .. ffi.errno())
elseif pid == 0 then -- child process elseif pid == 0 then -- child process
C.setsid()
local argv = k_char_p_arr_t(#args + 1) -- automatically NULL terminated local argv = k_char_p_arr_t(#args + 1) -- automatically NULL terminated
for i = 1, #args do for i = 1, #args do
argv[i-1] = args[i] -- args is 1-based Lua table, argv is 0-based C array argv[i-1] = args[i] -- args is 1-based Lua table, argv is 0-based C array
@ -38,4 +41,4 @@ local function spawn(args)
end end
end end
return spawn return {spawn=spawn, kill=C.kill}

View file

@ -3,7 +3,7 @@
(make-stream (make-stream
{:table (or table []) {:table (or table [])
:i 0 :i 0
:n (length table) :n (length (or table []))
:step 1 :step 1
:next :next
(fn [self] (fn [self]

158
test.fnl
View file

@ -1,14 +1,156 @@
(local program (require "asm")) (local {: program} (require "asm"))
(local {: stream : kvstream : one} (require "stream")) (local {: stream : kvstream : one} (require "stream"))
(local prg (program)) (local prg (program))
(local code1 (prg:org 0xc00))
; (prg:block :print-chars-forever 0x0c00
; :start
; [:dex]
; [:txa]
; [:jsr :0xfded]
; [:jmp :start])
(local vm {
:IP :0x40
:IPH :0x41
:W :0x42
:WH :0x43
:ROFF :0x44
:TOP :0x80
:TOPH :0x81
:ST1 :0x7e
:ST1H :0x7f
:ST2 :0x7c
:ST2H :0x7d
:RSTACK :0x6000
:ret (fn [self] [:jmp :next])
:push
(fn [self v]
(local l (bit.band v 0xff))
(local h (bit.band (bit.rshift v 8) 0xff))
[:block
[:inx]
[:inx]
[:lda l]
[:sta [self.TOP :x]]
[:lda h]
[:sta [self.TOPH :x]]
])
:drop (fn [self] [:block [:dex] [:dex]])
:def
(fn [self name ...]
(code1:append name (table.unpack (lume.concat [...] [(self:ret)]))))
})
(fn inc16 [l h]
[:block
[:inc l]
[:bne :done]
[:inc h]
:done
])
(fn add16 [l h]
[:block
[:adc l]
[:bcc :go]
[:inc h]
:go
])
(code1:append :next
[:lda vm.IP] [:sta vm.W]
[:lda vm.IPH] [:sta vm.WH]
[:lda 2] (add16 vm.IP vm.IPH)
[:jmp [vm.W]])
(vm:def
[:pla] [:sta vm.IP] [:pla] [:sta vm.IPH]
(inc16 vm.IP vm.IPH))
(vm:def
:subroutine ; usage: [jsr :subroutine] followed by bytecode
[:ldy vm.ROFF]
[:lda vm.IP] [:sta vm.RSTACK :y] [:iny]
[:lda vm.IPH] [:sta vm.RSTACK :y] [:iny]
:interpret ; usage: [jsr :interpret] followed by bytecode
[:pla] [:sta vm.IP] [:pla] [:sta vm.IPH]
(inc16 vm.IP vm.IPH))
(vm:def :ret
[:ldy vm.ROFF]
[:dey] [:lda vm.RSTACK :y] [:sta vm.IPH]
[:dey] [:lda vm.RSTACK :y] [:sta vm.IP]
[:sty vm.ROFF])
(code1:append :native [:jmp [vm.IP]])
(code1:append :quit [:rts])
(vm:def :mixed-hires
[:sta :0xc050]
[:sta :0xc057]
[:sta :0xc053])
(vm:def :drop (vm:drop))
(vm:def :dup
[:inx] [:inx]
[:lda vm.ST1H :x]
[:sta vm.TOPH :x]
[:lda vm.ST1 :x]
[:sta vm.TOP :x])
(vm:def :swap
[:lda vm.TOP :x]
[:ldy vm.ST1 :x]
[:sty vm.TOP :x]
[:sta vm.ST1 :x]
[:lda vm.TOPH :x]
[:ldy vm.ST1H :x]
[:sty vm.TOPH :x]
[:sta vm.ST1H :x])
(vm:def :>rot ; (a b c -- c a b)
[:lda vm.TOP :x] ; a: c (a b c)
[:ldy vm.ST2 :x] ; y: a (a b c)
[:sta vm.ST2 :x] ; a: c (c b c)
[:lda vm.ST1 :x] ; a: b (c b c)
[:sta vm.TOP :x] ; a: b (c b b)
[:sty vm.ST1 :x] ; y: a (c a b)
[:lda vm.TOPH :x] ; a: c (a b c)
[:ldy vm.ST2H :x] ; y: a (a b c)
[:sta vm.ST2H :x] ; a: c (c b c)
[:lda vm.ST1H :x] ; a: b (c b c)
[:sta vm.TOPH :x] ; a: b (c b b)
[:sty vm.ST1H :x] ; y: a (c a b)
)
(vm:def :<rot ; (a b c -- b c a)
[:lda vm.TOP :x] ; a: c (a b c)
[:ldy vm.ST1 :x] ; y: b (a b c)
[:sta vm.ST1 :x] ; a: c (a c c)
[:lda vm.ST2 :x] ; a: a (a c c)
[:sta vm.TOP :x] ; a: a (a c a)
[:sty vm.ST1 :x] ; y: b (b c a)
[:lda vm.TOPH :x] ; a: c (a b c)
[:ldy vm.ST1H :x] ; y: b (a b c)
[:sta vm.ST1H :x] ; a: c (a c c)
[:lda vm.ST2H :x] ; a: a (a c c)
[:sta vm.TOPH :x] ; a: a (a c a)
[:sty vm.ST1H :x] ; y: b (b c a)
)
(vm:def "@"
[:lda [vm.TOP :x]]
[:tay]
(inc16 vm.TOP vm.TOPH)
[:lda [vm.TOP :x]]
[:sta vm.TOPH :x]
[:sty vm.TOP :x])
(vm:def :lit
[:inx] [:inx] [:ldy 0]
[:lda [vm.IP] :y] [:sta [vm.TOP :x]]
[:lda [vm.IPH] :y] [:sta [vm.TOP :x]]
[:lda 2] (add16 vm.IP vm.IPH))
(prg:block :print-chars-forever 0x0c00
:start
[:dex]
[:txa]
[:jsr :0xfded]
[:jmp :start])
(prg:assemble) (prg:assemble)
(set prg.start-symbol :print-chars-forever) (set prg.start-symbol :mixed-hires)
prg prg

View file

@ -2,24 +2,47 @@
(require "util") (require "util")
(local imgui (require "imgui")) (local imgui (require "imgui"))
(local machine (require "machine")) (local machine (require "machine"))
(local core (require "core"))
(local command (require "core.command"))
(local keymap (require "core.keymap"))
(fn love.load [] (fn upload [] (: (reload "test") :upload machine))
; (repl.start)
) (command.add (fn [] machine.socket) {
"honeylisp:upload" upload
})
(command.add "core.docview" {
"fennel:eval" (fn []
(let [ldoc core.active_view.doc
(aline acol bline bcol) (ldoc:get_selection)
options {:env _G :compiler-env _G}
inject #(ldoc:insert bline bcol (fv (fennel.eval $1 options) {}))]
(if (and (= aline bline) (= acol bcol))
(inject (ldoc:get_text aline 1 aline 10000000))
(inject (ldoc:get_text aline acol bline bcol)))))
"lume:hotswap" (fn []
(local modname
(-> core.active_view.doc.filename
(: :gsub "%.%a+$" "")
(: :gsub "/" ".")
(: :gsub "^data%." "")
(: :gsub "%.init$" "")))
(core.log (.. "Hotswapping " modname))
(local (mod err) (lume.hotswap modname))
(when (not= err nil) (print err) (error err)))
})
(keymap.add {
"alt+e" "fennel:eval"
"alt+r" "lume:hotswap"
})
(fn love.load [])
(fn love.update [dt] (fn love.update [dt]
(imgui.NewFrame)) (imgui.NewFrame))
(fn love.draw [] (fn love.draw []
(when machine.socket
(when (imgui.Button "Stop on keypress")
(machine:stop-at 0xfd1b))
(when (imgui.Button "Upload")
(local prg (reload "test"))
(each [_ block (pairs prg.symbols)]
(pp (machine:write block.addr block.bytes)))
(pp (machine:setreg {:ip (. prg.symbols prg.start-symbol :addr)}))
(pp (machine:continue))))
(imgui.Render)) (imgui.Render))
(fn love.quit [] (fn love.quit []
@ -45,3 +68,5 @@
(fn love.wheelmoved [x y] (fn love.wheelmoved [x y]
(imgui.WheelMoved y)) (imgui.WheelMoved y))
{}