390 lines
11 KiB
Lua
390 lines
11 KiB
Lua
local generate_labels = false
|
|
local replacements = {
|
|
op_and16 = '{ Uint8 a = pop8(u->src), b = pop8(u->src), c = pop8(u->src), d = pop8(u->src); push8(u->src, d & b); push8(u->src, c & a); }',
|
|
op_ora16 = '{ Uint8 a = pop8(u->src), b = pop8(u->src), c = pop8(u->src), d = pop8(u->src); push8(u->src, d | b); push8(u->src, c | a); }',
|
|
op_eor16 = '{ Uint8 a = pop8(u->src), b = pop8(u->src), c = pop8(u->src), d = pop8(u->src); push8(u->src, d ^ b); push8(u->src, c ^ a); }',
|
|
op_lit16 = '{ push8(u->src, peek8(u->ram.dat, u->ram.ptr++)); push8(u->src, peek8(u->ram.dat, u->ram.ptr++)); }',
|
|
op_swp16 = '{ Uint8 a = pop8(u->src), b = pop8(u->src), c = pop8(u->src), d = pop8(u->src); push8(u->src, b); push8(u->src, a); push8(u->src, d); push8(u->src, c); }',
|
|
op_ovr16 = '{ Uint8 a = pop8(u->src), b = pop8(u->src), c = pop8(u->src), d = pop8(u->src); push8(u->src, d); push8(u->src, c); push8(u->src, b); push8(u->src, a); push8(u->src, d); push8(u->src, c); }',
|
|
op_dup16 = '{ Uint8 a = pop8(u->src), b = pop8(u->src); push8(u->src, b); push8(u->src, a); push8(u->src, b); push8(u->src, a); }',
|
|
op_rot16 = '{ Uint8 a = pop8(u->src), b = pop8(u->src), c = pop8(u->src), d = pop8(u->src), e = pop8(u->src), f = pop8(u->src); push8(u->src, d); push8(u->src, c); push8(u->src, b); push8(u->src, a); push8(u->src, f); push8(u->src, e); }',
|
|
op_sth16 = '{ Uint8 a = pop8(u->src), b = pop8(u->src); push8(u->dst, b); push8(u->dst, a); }'
|
|
}
|
|
local top, bottom, pushtop
|
|
local offset
|
|
offset = function(n, s)
|
|
if s == nil then
|
|
s = ''
|
|
end
|
|
if n < 0 then
|
|
return (' -%s %d'):format(s, -n)
|
|
elseif n > 0 then
|
|
return (' +%s %d'):format(s, n)
|
|
elseif s ~= '' then
|
|
return (' +%s 0'):format(s)
|
|
else
|
|
return ''
|
|
end
|
|
end
|
|
local pop_push
|
|
pop_push = function(k, n, s)
|
|
local _exp_0 = k
|
|
if 'pop' == _exp_0 then
|
|
s = s:match('^%((%S+)%)$')
|
|
assert(s == 'src')
|
|
local _exp_1 = n
|
|
if '8' == _exp_1 then
|
|
top[s] = top[s] - 1
|
|
if bottom[s] > top[s] then
|
|
bottom[s] = top[s]
|
|
end
|
|
return ('%s.dat[%s.ptr%s]'):format(s, s, offset(top[s]))
|
|
elseif '16' == _exp_1 then
|
|
top[s] = top[s] - 2
|
|
if bottom[s] > top[s] then
|
|
bottom[s] = top[s]
|
|
end
|
|
return ('(%s.dat[%s.ptr%s] | (%s.dat[%s.ptr%s] << 8))'):format(s, s, offset(top[s] + 1), s, s, offset(top[s]))
|
|
end
|
|
elseif 'push' == _exp_0 then
|
|
local v
|
|
s, v = s:match('^%((%S+), (.*)%)$')
|
|
assert(s == 'src' or s == 'dst', s)
|
|
local _exp_1 = n
|
|
if '8' == _exp_1 then
|
|
pushtop[s] = pushtop[s] + 1
|
|
return ('%s.dat[%s.ptr%s] = %s'):format(s, s, offset(pushtop[s] - 1), v)
|
|
elseif '16' == _exp_1 then
|
|
if v:match('%+%+') or v:match('%-%-') then
|
|
error('push16 has side effects: ' .. v)
|
|
end
|
|
local peek, args = v:match('^([md]e[mv]peek)16(%b())$')
|
|
if peek then
|
|
args = args:sub(2, -2)
|
|
return pop_push('push', '8', ('(%s, %s8(%s))'):format(s, peek, args)) .. ';\n' .. pop_push('push', '8', ('(%s, %s8(%s + 1))'):format(s, peek, args))
|
|
end
|
|
pushtop[s] = pushtop[s] + 2
|
|
if v:match(' ') then
|
|
v = '(' .. v .. ')'
|
|
end
|
|
return ('%s.dat[%s.ptr%s] = %s >> 8;\n%s.dat[%s.ptr%s] = %s & 0xff'):format(s, s, offset(pushtop[s] - 2), v, s, s, offset(pushtop[s] - 1), v)
|
|
end
|
|
else
|
|
return nil
|
|
end
|
|
end
|
|
local indented_block
|
|
indented_block = function(s)
|
|
s = s:gsub('^%{ *', '{\n'):gsub('\n', '\n\t'):gsub('\t%} *$', '}\n')
|
|
s = s:gsub('\n[^\n]+%.error = [^\n]+', '%0\n#ifndef NO_STACK_CHECKS\n\tgoto error;\n#endif')
|
|
return s
|
|
end
|
|
local process
|
|
process = function(body)
|
|
local out_body = body:gsub('^%{ *', ''):gsub(' *%}$', ''):gsub('; ', ';\n'):gsub('%b{} *', indented_block):gsub('(%a+)(%d+)(%b())', pop_push)
|
|
local in_ifdef = false
|
|
local _list_0 = {
|
|
'src',
|
|
'dst'
|
|
}
|
|
for _index_0 = 1, #_list_0 do
|
|
local k = _list_0[_index_0]
|
|
if bottom[k] ~= 0 then
|
|
if not in_ifdef then
|
|
out_body = out_body .. '\n#ifndef NO_STACK_CHECKS'
|
|
in_ifdef = true
|
|
end
|
|
out_body = out_body .. ('\nif(__builtin_expect(%s.ptr < %d, 0)) {\n\t%s.error = 1;\n\tgoto error;\n}'):format(k, -bottom[k], k)
|
|
end
|
|
if pushtop[k] ~= 0 then
|
|
if pushtop[k] > 0 then
|
|
if not in_ifdef then
|
|
out_body = out_body .. '\n#ifndef NO_STACK_CHECKS'
|
|
in_ifdef = true
|
|
end
|
|
out_body = out_body .. ('\nif(__builtin_expect(%s.ptr > %d, 0)) {\n\t%s.error = 2;\n\tgoto error;\n}'):format(k, 255 - pushtop[k], k)
|
|
end
|
|
if in_ifdef then
|
|
out_body = out_body .. '\n#endif'
|
|
in_ifdef = false
|
|
end
|
|
out_body = out_body .. ('\n%s.ptr %s= %d;'):format(k, pushtop[k] < 0 and '-' or '+', math.abs(pushtop[k]))
|
|
end
|
|
end
|
|
if in_ifdef then
|
|
out_body = out_body .. '\n#endif'
|
|
in_ifdef = false
|
|
end
|
|
local t = { }
|
|
out_body:gsub('[^%w_]([a-f]) = (src%.dat%[[^]]+%])[,;]', function(v, k)
|
|
t[k] = v
|
|
end)
|
|
out_body = out_body:gsub('(src%.dat%[[^]]+%]) = ([a-f]);\n', function(k, v)
|
|
if t[k] and t[k] == v then
|
|
return ''
|
|
end
|
|
return nil
|
|
end)
|
|
return out_body
|
|
end
|
|
local ops = { }
|
|
for l in assert(io.lines('src/uxn.c')) do
|
|
local _continue_0 = false
|
|
repeat
|
|
local name, body = l:match('void (op_%S*)%(Uxn %*u%) (%b{})')
|
|
if not name then
|
|
_continue_0 = true
|
|
break
|
|
end
|
|
if replacements[name] then
|
|
body = replacements[name]
|
|
end
|
|
body = body:gsub('u%-%>src%-%>', 'src.')
|
|
body = body:gsub('u%-%>dst%-%>', 'dst.')
|
|
body = body:gsub('u%-%>src', 'src')
|
|
body = body:gsub('u%-%>dst', 'dst')
|
|
top = {
|
|
src = 0,
|
|
dst = 0
|
|
}
|
|
bottom = {
|
|
src = 0,
|
|
dst = 0
|
|
}
|
|
pushtop = top
|
|
ops[name] = process(body)
|
|
top = {
|
|
src = 0,
|
|
dst = 0
|
|
}
|
|
bottom = {
|
|
src = 0,
|
|
dst = 0
|
|
}
|
|
pushtop = {
|
|
src = 0,
|
|
dst = 0
|
|
}
|
|
ops['keep_' .. name] = process(body)
|
|
_continue_0 = true
|
|
until true
|
|
if not _continue_0 then
|
|
break
|
|
end
|
|
end
|
|
local dump
|
|
dump = function(s, src, dst)
|
|
local ret = '\t\t\t{\n'
|
|
for l in s:gmatch('[^\n]+') do
|
|
if not l:match('^%#') then
|
|
ret = ret .. '\t\t\t\t'
|
|
end
|
|
ret = ret .. ('%s\n'):format(l)
|
|
end
|
|
ret = ret .. '\t\t\t}\n\t\t\tbreak;\n'
|
|
return (ret:gsub('src', src):gsub('dst', dst))
|
|
end
|
|
local i = 0
|
|
local allops = { }
|
|
local wanted = false
|
|
for l in assert(io.lines('src/uxn.c')) do
|
|
if l == 'static void (*ops[])(Uxn *u) = {' then
|
|
wanted = true
|
|
elseif l == '};' then
|
|
wanted = false
|
|
elseif wanted then
|
|
l = l:gsub('%/%b**%/', '')
|
|
for op in l:gmatch('[%w_]+') do
|
|
if not ops[op] then
|
|
error('missing ' .. op)
|
|
end
|
|
allops[i + 0x00 + 1] = {
|
|
n = {
|
|
i + 0x00
|
|
},
|
|
body = dump(ops[op], 'u->wst', 'u->rst')
|
|
}
|
|
allops[i + 0x20 + 1] = {
|
|
n = {
|
|
i + 0x20
|
|
},
|
|
body = dump(ops[op], 'u->rst', 'u->wst')
|
|
}
|
|
allops[i + 0x80 + 1] = {
|
|
n = {
|
|
i + 0x80
|
|
},
|
|
body = dump(ops['keep_' .. op], 'u->wst', 'u->rst')
|
|
}
|
|
allops[i + 0xa0 + 1] = {
|
|
n = {
|
|
i + 0xa0
|
|
},
|
|
body = dump(ops['keep_' .. op], 'u->rst', 'u->wst')
|
|
}
|
|
i = i + 1
|
|
if i == 0x20 then
|
|
i = i + 0x20
|
|
end
|
|
end
|
|
end
|
|
end
|
|
i = 0
|
|
wanted = false
|
|
for l in assert(io.lines('src/uxnasm.c')) do
|
|
if l == 'static char ops[][4] = {' then
|
|
wanted = true
|
|
elseif l == '};' then
|
|
wanted = false
|
|
elseif wanted then
|
|
for op in l:gmatch('"(...)"') do
|
|
i = i + 1
|
|
allops[i + 0x00].name = op
|
|
allops[i + 0x20].name = op .. 'r'
|
|
allops[i + 0x40].name = op .. '2'
|
|
allops[i + 0x60].name = op .. '2r'
|
|
allops[i + 0x80].name = op .. 'k'
|
|
allops[i + 0xa0].name = op .. 'kr'
|
|
allops[i + 0xc0].name = op .. '2k'
|
|
allops[i + 0xe0].name = op .. '2kr'
|
|
end
|
|
end
|
|
end
|
|
for i = 1, 256 do
|
|
local _continue_0 = false
|
|
repeat
|
|
if not allops[i] then
|
|
_continue_0 = true
|
|
break
|
|
end
|
|
for j = i + 1, 256 do
|
|
if allops[i].body == allops[j].body then
|
|
table.insert(allops[i].n, (table.remove(allops[j].n)))
|
|
allops[j].body = nil
|
|
end
|
|
end
|
|
_continue_0 = true
|
|
until true
|
|
if not _continue_0 then
|
|
break
|
|
end
|
|
end
|
|
do
|
|
local _with_0 = assert(io.open('src/uxn-fast.c', 'w'))
|
|
local f = assert(io.open('src/uxn.c'))
|
|
while true do
|
|
local l = f:read('*l')
|
|
_with_0:write(('%s\n'):format(l))
|
|
if l == '*/' then
|
|
break
|
|
end
|
|
end
|
|
_with_0:write('\n')
|
|
_with_0:write([[/*
|
|
^
|
|
/!\ THIS FILE IS AUTOMATICALLY GENERATED
|
|
---
|
|
|
|
Its contents can get overwritten with the processed contents of src/uxn.c.
|
|
See etc/mkuxn-fast.moon for instructions.
|
|
|
|
*/
|
|
]])
|
|
wanted = true
|
|
while true do
|
|
local _continue_0 = false
|
|
repeat
|
|
local l = f:read('*l')
|
|
if l:match(' push') or l:match('[ *]pop') or l:match('devr16') then
|
|
_continue_0 = true
|
|
break
|
|
end
|
|
if l == '/* Stack */' then
|
|
wanted = false
|
|
end
|
|
if wanted then
|
|
_with_0:write(('%s\n'):format(l))
|
|
end
|
|
if l == '}' then
|
|
_with_0:write('\n')
|
|
break
|
|
end
|
|
_continue_0 = true
|
|
until true
|
|
if not _continue_0 then
|
|
break
|
|
end
|
|
end
|
|
_with_0:write([[/* clang-format on */
|
|
|
|
#pragma mark - Core
|
|
|
|
int
|
|
uxn_eval(Uxn *u, Uint16 vec)
|
|
{
|
|
Uint8 instr;
|
|
if(!vec || u->dev[0].dat[0xf])
|
|
return 0;
|
|
u->ram.ptr = vec;
|
|
if(u->wst.ptr > 0xf8) u->wst.ptr = 0xf8;
|
|
while((instr = u->ram.dat[u->ram.ptr++])) {
|
|
switch(instr) {
|
|
#pragma GCC diagnostic push
|
|
#pragma GCC diagnostic ignored "-Wunused-value"
|
|
#pragma GCC diagnostic ignored "-Wunused-variable"
|
|
]])
|
|
for i = 1, 256 do
|
|
local _continue_0 = false
|
|
repeat
|
|
if not allops[i].body then
|
|
_continue_0 = true
|
|
break
|
|
end
|
|
local _list_0 = allops[i].n
|
|
for _index_0 = 1, #_list_0 do
|
|
local n = _list_0[_index_0]
|
|
_with_0:write(('\t\tcase 0x%02x: /* %s */\n'):format(n, allops[n + 1].name))
|
|
end
|
|
if generate_labels then
|
|
_with_0:write(('\t\t\t__asm__("evaluxn_%02x_%s:");\n'):format(allops[i].n[1], allops[i].name))
|
|
end
|
|
_with_0:write(allops[i].body)
|
|
_continue_0 = true
|
|
until true
|
|
if not _continue_0 then
|
|
break
|
|
end
|
|
end
|
|
_with_0:write([[#pragma GCC diagnostic pop
|
|
}
|
|
}
|
|
return 1;
|
|
#ifndef NO_STACK_CHECKS
|
|
error:
|
|
if(u->wst.error)
|
|
return uxn_halt(u, u->wst.error, "Working-stack", instr);
|
|
else
|
|
return uxn_halt(u, u->rst.error, "Return-stack", instr);
|
|
#endif
|
|
}
|
|
|
|
int
|
|
]])
|
|
wanted = false
|
|
while true do
|
|
local l = f:read('*l')
|
|
if not l then
|
|
break
|
|
end
|
|
if l:match('^uxn_boot') then
|
|
wanted = true
|
|
end
|
|
if wanted then
|
|
_with_0:write(('%s\n'):format(l))
|
|
end
|
|
end
|
|
f:close()
|
|
_with_0:close()
|
|
return _with_0
|
|
end
|