#!/usr/bin/python3

# The OS/K Team licences this file to you under the MIT license.
# See the LICENSE file in the project root for more information.

fi = open("INSTRS")
hd = open("arch_i.h", "w")

count = 0

hd.write("// Auto-generated by instrs.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")

def getflag(s):
    if s == "r":
        return "P_REG"

    if s == "i":
        return "P_IMM"

    if s == "m":
        return "P_MEM"
    
    return "__ERROR__"

for _, line in enumerate(fi):
    if line[0] == '#' or line[0] == ' ' or line[0] == '\n':
        continue
    
    tok = line.strip().split(' ')
    
    if len(tok) == 1:
        name = tok[0]
        p1 = "NOPRM"
        p2 = "NOPRM"

    elif len(tok) == 2:
        name = "{}_{}".format(tok[0], tok[1].strip())
        p1 = getflag(tok[1])
        p2 = "NOPRM"
    
    elif len(tok) == 3:
        name = "{}_{}_{}".format(tok[0], tok[1], tok[2].strip())
        p1 = getflag(tok[1])
        p2 = getflag(tok[2])
        
    else:
        name = "__ERROR__"
        p1 = "__ERROR__"
        p2 = "__ERROR__"

    hd.write("#ifdef _NEED_ARCH_I\n")
    hd.write('{{ "{}", "{}", {}, {}, i_{} }},\n'\
                .format(tok[0], name, p1, p2, tok[0]))
    hd.write("#else\n")
    hd.write("#define I_{} {}\n".format(name.upper(), count))
    hd.write("extern void i_{}(ctx_t *, acc_t *, acc_t *);\n"
                .format(tok[0]))
    hd.write("#endif\n\n")

    count = count + 1

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")

hd.close()
fi.close()