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Fixed various bugs in 6502.lua until genbin.

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g012 2017-09-19 13:55:01 +02:00
parent 469296f144
commit d3cee527f7
3 changed files with 41 additions and 24 deletions
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41
6502.lua
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@ -23,8 +23,8 @@ M.link = function()
else
if chunk.size - (start - chunk.start) == size then chunk.size = chunk.size - size
else
table.insert(location.chunks, chunk_ix+1, { start=start+size, size=chunk.size-(start+size) })
chunk.size = start - chunk.start
table.insert(location.chunks, chunk_ix+1, { start=start+size, size=chunk.start+chunk.size-(start+size) })
end
end
end
@ -61,14 +61,14 @@ M.link = function()
-- position independent sections
table.sort(position_independent_sections, function(a,b) return a.size < b.size end)
while #position_independent_sections > 0 do
local section = position_independent_sections[1]
for _,section in ipairs(position_independent_sections) do
local chunks = {}
for _,chunk in ipairs(location.chunks) do
if chunk.size >= section.size then chunks[#chunks+1] = chunk end
end
table.sort(chunks, function(a,b) return a.size < b.size end)
for chunk_ix,chunk in ipairs(chunks) do
print(chunk.size, section.size, section.label)
local waste,position = math.maxinteger
local usage_lowest = function(start, finish)
local inc=1
@ -79,8 +79,8 @@ M.link = function()
end
for address=start,finish,inc do
for _,constraint in ipairs(section.constraints) do
local start, finish = address+contraint.start, address+constraint.finish
if start // 0x100 == finish // 0x100 then
local from, to = address+constraint.from, address+constraint.to
if from // 0x100 == to // 0x100 then
if constraint.type == 'crosspage' then goto constraints_not_met end
else
if constraint.type == 'samepage' then goto constraints_not_met end
@ -99,8 +99,10 @@ M.link = function()
end
if position then
chunk_reserve(chunk_ix, chunk, position, section.size)
for k,v in ipairs(location.chunks) do print(k, v.size) end
section.org = position
symbols[section.label] = position
print('yay')
goto chunk_located
end
end
@ -142,13 +144,14 @@ M.genbin = function(filler)
error(string.format("location [%04x,%04x] overlaps another",
location.start, math.type(location.size) == 'integer' and (location.size + location.start) or 0xffff))
end
for i=#bin,location.start do ins(bin, filler) end
for i=#bin,location.start-1 do ins(bin, filler) end
M.size=0 M.cycles=0
local sections = location.sections
table.sort(sections, function(a,b) return a.start < b.start end)
for _,section in sections do
table.sort(sections, function(a,b) return a.org < b.org end)
for _,section in ipairs(sections) do
print(section.org, #bin)
assert(section.org >= #bin)
for i=#bin,section.org do ins(bin, filler) end
for i=#bin,section.org-1 do ins(bin, filler) end
for _,instruction in ipairs(section.instructions) do
if instruction.bin then for _,b in ipairs(instruction.bin) do ins(bin, b) end
elseif instruction.asbin then instruction.asbin(bin) end
@ -156,7 +159,7 @@ M.genbin = function(filler)
end
end
if math.type(location.size) == 'integer' then
local endpos = location.size+location.start
local endpos = location.size+location.start-1
for i=#bin,endpos do ins(bin, filler) end
end
end
@ -167,8 +170,7 @@ M.writebin = function(filename, bin)
if not filename then filename = 'main.bin' end
if not bin then bin = M.genbin() end
local f = assert(io.open(filename, "wb"), "failed to open " .. filename .. " for writing")
local sconv,s=string.char,{} for i=1,#bin do s[i] = sconv(bin[i]) end
f:write(table.concat(s))
f:write(string.char(bin:unpack()))
f:close()
end
@ -192,8 +194,8 @@ M.location = function(start, finish)
end end
error("unable to find reference to location [" .. (start.start or '?') .. ", " .. (start.finish or '?') .. "]")
end
local size = (finish or math.huge) - start
local location = { start=start, finish=finish, chunks={ { start=start, size=size } } }
local size = (finish or math.huge) - start + 1
local location = { start=start, finish=finish, sections={}, chunks={ { start=start, size=size } } }
locations[#locations+1] = location
M.location_current = location
return location
@ -271,7 +273,7 @@ end
M.endpage = function()
local section = M.section_current
local constraint = section.constraints[#section.constraints]
assert(constraint and not constraint.finish, "closing constraint, but no constraint is open")
assert(constraint and not constraint.to, "closing constraint, but no constraint is open")
constraint.to = #section.instructions
end
@ -314,7 +316,7 @@ M.byte_impl = function(args, nrm)
elseif t == 'table' then table.move(v,1,#v,#data+1,data)
elseif t == 'string' then
if cs then
for _,c in v:gmatch'.' do
for c in v:gmatch'.' do
local i=cs[c]
if not i then error("character " .. c .. " is not part of current charset") end
data[#data+1]=i
@ -329,6 +331,9 @@ M.byte_impl = function(args, nrm)
local asbin = function(b)
for _,v in ipairs(data) do
if type(v) == 'function' then v = v() end
local vt = type(v)
if vt == 'table' and v.label then v = symbols[v.label]
elseif vt == 'string' then v = symbols[v] end
b[#b+1] = nrm(v)
end
end
@ -352,6 +357,7 @@ local byte_encapsulate = function(args)
args[k] = function() return symbols[v.label] end
end
end
return args
end
M.byte_hi = function(...)
return M.byte_impl(byte_encapsulate{...}, function(v) return (v>>8)&0xff end)
@ -383,6 +389,9 @@ M.word = function(...)
local asbin = function(b)
for _,v in ipairs(data) do
if type(v) == 'function' then v = v() end
local vt = type(v)
if vt == 'table' and v.label then v = symbols[v.label]
elseif vt == 'string' then v = symbols[v] end
v = word_normalize(v)
b[#b+1] = v&0xff
b[#b+1] = v>>8

12
asm.l65
View File

@ -3,18 +3,20 @@ dofile "vcs.lua"
TIM_OVERSCAN = 50 -- TIM64T, 3200 cycles = ~ 42 scanlines
TIM_VBLANK = 61 -- TIM64T, 3904 cycles = ~ 51 scanlines
TIM_KERNEL = 17 -- T1024T, 17408 cycles = ~229 scanlines
location(0xf000, 0xffff)
location(0x000, 0xfff)
if toto ~= 15 then end
abc = 13 ~ 0x7
xyz = 1 << 2
x={ f=function() end }
x:f()
::lualabel::
#pragma syntax6502 off
lda = 5 if lda < 6 then print('yep') end
lda = 5 if lda < 6 then sta=7 end
#pragma syntax6502 on
local function ptr_table(label, ...)
@ -38,7 +40,7 @@ charset()
byte_lo(message) byte_hi(message)
byte(\(message&0xff), \(message>>8))
ptr_table("ptrs", message, data, 0)
ptr_table("ptrs", \(message), data, 0)
--section{ "toto", align = 256, offset = 16 }
--section{ "toto", org = 0xf100 }
@ -103,13 +105,15 @@ ptr_table("ptrs", message, data, 0)
@_toto
bne "test"
bne waitForIntim
bne f()
f=\("test") bne f()
bne _toto
jam asl lsr ldx #16 ldy 0xf0f0
rts
writebin()
--[[
section "doOverscan"
sta{WSYNC} -- WSYNC=a

12
asm.lua
View File

@ -3,18 +3,20 @@ dofile "vcs.lua"
TIM_OVERSCAN = 50 -- TIM64T, 3200 cycles = ~ 42 scanlines
TIM_VBLANK = 61 -- TIM64T, 3904 cycles = ~ 51 scanlines
TIM_KERNEL = 17 -- T1024T, 17408 cycles = ~229 scanlines
location(0xf000, 0xffff)
location(0x000, 0xfff)
if toto ~= 15 then end
abc = 13 ~ 0x7
xyz = 1 << 2
x={ f=function() end }
x:f()
::lualabel::
;
lda = 5 if lda < 6 then print('yep') end
lda = 5 if lda < 6 then sta=7 end
;
local function ptr_table(label, ...)
@ -38,7 +40,7 @@ section("data")
byte_lo(message) byte_hi(message)
byte(function() return message&0xff end, function() return message>>8 end)
ptr_table("ptrs", message, data, 0)
ptr_table("ptrs", function() return message end, data, 0)
--section{ "toto", align = 256, offset = 16 }
--section{ "toto", org = 0xf100 }
@ -101,13 +103,15 @@ section("waitForIntim") --alt short syntax when no other option
label("_toto")
bnerel( "test")
bnerel( "waitForIntim")
bnerel( f())
f=function() return "test" end bnerel( f())
bnerel( "_toto")
jamimp() aslimp() lsrimp() ldximm (function(o) return o+(16) end) ldyzab(function(o) return o+( 0xf0f0) end)
rtsimp()
writebin()
--[[
section "doOverscan"
sta{WSYNC} -- WSYNC=a