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mirror of https://gitlab.os-k.eu/os-k-team/kvisc.git synced 2023-08-25 14:05:46 +02:00
kvisc/vm/in/arch_i.py
julianb0 6f59eebedb
vm
2019-07-01 21:46:36 +02:00

158 lines
3.6 KiB
Python

#!/usr/bin/python3
# The OS/K Team licenses this file to you under the MIT license.
# See the LICENSE file in the project root for more information.
from tempfile import TemporaryFile
def getflag(s):
if s == "r":
return "P_REG"
if s == "i":
return "P_IMM"
if s == "m":
return "P_MEM"
return "__FLAG_ERROR__"
def doprnt(fp, i, p1, p2, p3):
for c1 in p1:
for c2 in p2:
for c3 in p3:
fp.write("{} {} {} {}".format(i, c1, c2, c3).strip())
fp.write('\n')
def parse_1(fi, fp):
global count
# "instr ri ri" => "instr r r\ninstr r i\ninstr i r..."
# not optimal but will do for now
for _, line in enumerate(fi):
if line[0] == '#' or line[0] == ' ' or line[0] == '\n':
continue
line = line.strip()
if line[:8] == "include ":
_, fn = line.split(' ', 1)
fi2 = open(fn[1:-1])
parse_1(fi2, fp)
continue
tok = line.split()
if len(tok) == 0:
continue
i = tok[0]
if len(tok) == 1:
doprnt(fp, i, ' ', ' ', ' ')
continue
if len(tok) == 2:
p = tok[1]
doprnt(fp, i, p, ' ', ' ')
continue
if len(tok) == 3:
p1 = tok[1]
p2 = tok[2]
doprnt(fp, i, p1, p2, ' ')
continue
assert(len(tok) == 4)
p1 = tok[1]
p2 = tok[2]
p3 = tok[3]
doprnt(fp, i, p1, p2, p3)
fi.close()
def parse_2(fp):
global count
fp.seek(0)
for _, line in enumerate(fp):
tok = line.strip().split(' ')
assert(len(tok) > 0)
deprecated = ''
if tok[0][0] == '!':
assert(len(tok[0]) > 1)
deprecated = '__'
tok[0] = tok[0][1:]
if len(tok) == 1:
name = tok[0]
p1 = "NOPRM"
p2 = "NOPRM"
p3 = "NOPRM"
elif len(tok) == 2:
name = "{}_{}".format(tok[0], tok[1])
p1 = getflag(tok[1])
p2 = "NOPRM"
p3 = "NOPRM"
elif len(tok) == 3:
name = "{}_{}_{}".format(tok[0], tok[1], tok[2])
p1 = getflag(tok[1])
p2 = getflag(tok[2])
p3 = "NOPRM"
elif len(tok) == 4:
name = "{}_{}_{}_{}".format(tok[0], tok[1], tok[2], tok[3])
p1 = getflag(tok[1])
p2 = getflag(tok[2])
p3 = getflag(tok[3])
else:
name = "__TOK_ERROR__"
p1 = "__TOK_ERROR__"
p2 = "__TOK_ERROR__"
p3 = "__TOK_ERROR__"
ls.write("{}{}\n".format(deprecated, name))
hd.write("#ifdef _NEED_ARCH_I\n")
hd.write('{{ "{}{}", "{}{}", {}, {}, {}, i_{} }},\n'\
.format(deprecated, tok[0], deprecated, name, p1, p2, p3, tok[0]))
hd.write("#else\n")
hd.write("#define I_{} {}\n".format(name.upper(), count))
hd.write("extern bool i_{}(ctx_t *, acc_t *, acc_t *, acc_t *, ulong *, ulong *, ulong *);\n"
.format(tok[0]))
hd.write("#endif\n\n")
count = count + 1
fi = open("INSTRS")
hd = open("arch_i.h", "w")
ls = open("instrs.lst", "w")
count = 0
hd.write("// Auto-generated by arch_i.py from INSTRS\n\n");
hd.write("#ifdef _NEED_ARCH_I\n")
hd.write("instr_t arch_i[] =\n{\n\n")
hd.write("#endif\n")
fp = TemporaryFile(mode="w+")
parse_1(fi, fp)
parse_2(fp)
hd.write("#ifdef _NEED_ARCH_I\n")
hd.write("};\n")
hd.write("#else\n")
hd.write("#define NINSTRS {}\n\n".format(count))
hd.write("#endif\n")
ls.close()
hd.close()