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https://github.com/g012/l65.git
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Generates a binary for the first time.
This commit is contained in:
g012
parent
d3cee527f7
commit
8ba7ab6bf6
2
.gitignore
vendored
2
.gitignore
vendored
@ -1,2 +1,4 @@
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/build
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/tmp
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*.bin
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*.sym
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42
6502.lua
42
6502.lua
@ -125,31 +125,30 @@ M.resolve = function()
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stats.resolved_count = 0
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local count = 0
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for k,v in pairs(symbols) do
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for k,v in pairs(symbols) do if k ~= '__index' then
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local t = type(v)
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if v == 'function' then symbols[k] = v() count=count+1
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elseif v == 'table' and type(v.resolve) == 'function' then symbols[k] = v.resolve() count=count+1 end
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end
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if t == 'function' then v=v() t=type(v) symbols[k]=v count=count+1 end
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if t == 'table' and type(v.resolve) == 'function' then symbols[k]=v.resolve() count=count+1
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elseif t == 'string' then symbols[k]=symbols[v] count=count+1 end
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end end
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stats.resolved_count = count
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end
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M.genbin = function(filler)
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if not filler then filler = 0xff end
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if not filler then filler = 0 end -- brk opcode
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M.resolve()
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local bin = {}
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local ins = table.insert
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table.sort(locations, function(a,b) return a.start < b.start end)
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for _,location in ipairs(locations) do
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if location.start < #bin then
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error(string.format("location [%04x,%04x] overlaps another",
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location.start, math.type(location.size) == 'integer' and (location.size + location.start) or 0xffff))
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error(string.format("location [%04x,%04x] overlaps another", location.start, location.finish))
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end
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for i=#bin,location.start-1 do ins(bin, filler) end
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M.size=0 M.cycles=0
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local sections = location.sections
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table.sort(sections, function(a,b) return a.org < b.org end)
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for _,section in ipairs(sections) do
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print(section.org, #bin)
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assert(section.org >= #bin)
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for i=#bin,section.org-1 do ins(bin, filler) end
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for _,instruction in ipairs(section.instructions) do
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@ -158,9 +157,8 @@ print(section.org, #bin)
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M.size=#bin M.cycles=M.cycles+(instruction.cycles or 0)
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end
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end
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if math.type(location.size) == 'integer' then
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local endpos = location.size+location.start-1
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for i=#bin,endpos do ins(bin, filler) end
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if location.finish then
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for i=#bin,location.finish do ins(bin, filler) end
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end
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end
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return bin
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@ -170,7 +168,7 @@ M.writebin = function(filename, bin)
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if not filename then filename = 'main.bin' end
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if not bin then bin = M.genbin() end
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local f = assert(io.open(filename, "wb"), "failed to open " .. filename .. " for writing")
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f:write(string.char(bin:unpack()))
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f:write(string.char(table.unpack(bin)))
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f:close()
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end
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@ -180,7 +178,10 @@ M.writesym = function(filename)
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table.sort(symbols)
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local ins,fmt,rep = table.insert,string.format,string.rep
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local s ={'--- Symbol List'}
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for k,v in pairs(symbols) do ins(s, fmt("%s%s %04x", k, rep(' ',24-#k), type(v)=='table' and v.org or v)) end
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local sym_rev = {}
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for k,v in pairs(symbols) do if type(v) == 'number' then ins(sym_rev,k) end end
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table.sort(sym_rev, function(a,b) local x,y=symbols[a],symbols[b] return x==y and a<b or x<y end)
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for _,v in ipairs(sym_rev) do local k=symbols[v] ins(s, fmt("%s%s %04x", v, rep(' ',24-#v), k)) end
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s[#s+1] = '--- End of Symbol List.'
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f:write(table.concat(s, '\n'))
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f:close()
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@ -243,8 +244,9 @@ M.section = function(t)
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end
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M.label = function(name)
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local eval,resolve,label,offset
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label = { type='label', size=eval, resolve=resolve }
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local label,offset
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local section = M.section_current
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label = { type='label' }
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if name:sub(1,1) == '_' then -- local label
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name = M.label_current .. name
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else
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@ -252,13 +254,13 @@ M.label = function(name)
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end
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if symbols[name] then error("duplicate symbol: " .. name) end
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symbols[name] = label
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eval = function()
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offset = M.section_current.size
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label.size = function()
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offset = section.size
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label.size = 0
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return 0
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end
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resolve = function() return M.section_current.org + offset end
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table.insert(M.section_current.instructions, label)
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label.resolve = function() return section.org + offset end
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table.insert(section.instructions, label)
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return label
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end
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@ -638,7 +640,7 @@ for k,v in pairs(oprel) do
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if x:sub(1,1) == '_' then x = parent .. x end
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x = symbols[x]
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end
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if type(x) ~= 'number' then error("unresolved branch target: " .. x) end
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if type(x) ~= 'number' then error("unresolved branch target: " .. tostring(x)) end
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if x < -128 or x > 127 then error("branch target out of range: " .. x) end
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b[#b+1]=v.opc b[#b+1]=x&0xff
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end
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36
asm.l65
36
asm.l65
@ -64,13 +64,13 @@ ptr_table("ptrs", \(message), data, 0)
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lda data+3,12
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lda data+3,12,x
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lda data+3,12,y
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lda (INTIM,5,x)
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lda (\a(a+2),INTIM,x)
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lda (INTIM,5),y
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lda (\a(a&3),INTIM),y
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jmp (INTIM)
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jmp (INTIM,12)
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jmp (INTIM-4)
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lda (VBLANK,5,x)
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lda (\a(a+2),VBLANK,x)
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lda (VBLANK,5),y
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lda (\a(a&3),VBLANK),y
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jmp (VBLANK)
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jmp (VBLANK,12)
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jmp (VBLANK-4)
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-- cycles are counted without taking any branch
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table.insert(section_current.instructions, { asbin=function() print('kernel cycles: ', cycles-kernel_cycles, 'kernel size: ', size-kernel_size) end })
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@ -89,30 +89,30 @@ ptr_table("ptrs", \(message), data, 0)
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samepage
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lda #0xac
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lda #INTIM
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lda #VBLANK
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lda 0xbeef
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lda INTIM
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lda.w INTIM
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lda INTIM,x
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lda INTIM,y
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lda (INTIM,x)
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lda (INTIM),y
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lda VBLANK
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lda.w VBLANK
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lda VBLANK,x
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lda VBLANK,y
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lda (VBLANK,x)
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lda (VBLANK),y
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end
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asl
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asl INTIM
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asl VBLANK
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asl
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@_toto
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bne "test"
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bne "_toto"
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bne waitForIntim
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f=\("test") bne f()
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f=\("_toto") bne f()
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bne _toto
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jam asl lsr ldx #16 ldy 0xf0f0
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rts
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writebin()
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writesym()
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--[[
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section "doOverscan"
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36
asm.lua
36
asm.lua
@ -64,13 +64,13 @@ section("waitForIntim") --alt short syntax when no other option
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ldazab(function(o) return o+( data+3) end,12)
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ldazax(function(o) return o+( data+3) end,12)
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ldaaby(function(o) return o+( data+3) end,12)
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ldainx (function(o) return o+(INTIM) end,5)
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ldainx (function(a) return a+2 end,INTIM)
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ldainy (function(o) return o+(INTIM) end,5)
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ldainy (function(a) return a&3 end,INTIM)
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jmpind (function(o) return o+(INTIM) end)
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jmpind (function(o) return o+(INTIM) end,12)
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jmpind (function(o) return o+(INTIM-4) end)
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ldainx (function(o) return o+(VBLANK) end,5)
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ldainx (function(a) return a+2 end,VBLANK)
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ldainy (function(o) return o+(VBLANK) end,5)
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ldainy (function(a) return a&3 end,VBLANK)
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jmpind (function(o) return o+(VBLANK) end)
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jmpind (function(o) return o+(VBLANK) end,12)
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jmpind (function(o) return o+(VBLANK-4) end)
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-- cycles are counted without taking any branch
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table.insert(section_current.instructions, { asbin=function() print('kernel cycles: ', cycles-kernel_cycles, 'kernel size: ', size-kernel_size) end })
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@ -87,30 +87,30 @@ section("waitForIntim") --alt short syntax when no other option
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do samepage()
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ldaimm (function(o) return o+(0xac) end)
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ldaimm (function(o) return o+(INTIM) end)
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ldaimm (function(o) return o+(VBLANK) end)
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ldazab(function(o) return o+( 0xbeef) end)
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ldazab(function(o) return o+( INTIM) end)
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ldaabs(function(o) return o+( INTIM) end)
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ldazax(function(o) return o+( INTIM) end)
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ldaaby(function(o) return o+( INTIM) end)
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ldainx (function(o) return o+(INTIM) end)
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ldainy (function(o) return o+(INTIM) end) endpage()
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ldazab(function(o) return o+( VBLANK) end)
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ldaabs(function(o) return o+( VBLANK) end)
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ldazax(function(o) return o+( VBLANK) end)
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ldaaby(function(o) return o+( VBLANK) end)
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ldainx (function(o) return o+(VBLANK) end)
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ldainy (function(o) return o+(VBLANK) end) endpage()
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end
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aslimp()
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aslzab(function(o) return o+( INTIM) end)
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aslzab(function(o) return o+( VBLANK) end)
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aslimp()
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label("_toto")
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bnerel( "test")
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bnerel( "_toto")
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bnerel( "waitForIntim")
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f=function() return "test" end bnerel( f())
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f=function() return "_toto" end bnerel( f())
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bnerel( "_toto")
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jamimp() aslimp() lsrimp() ldximm (function(o) return o+(16) end) ldyzab(function(o) return o+( 0xf0f0) end)
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rtsimp()
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writebin()
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writesym()
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--[[
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section "doOverscan"
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