def link_lui(line, tokens, symbols, off):
#LUI rd, imm
if (len(tokens) == 3):
try:
rd = token_to_reg(tokens[1])
imm = token_to_int(tokens[2], 0, symbols, off)
return iformat.le_encode(iformat.compile_u(0x37, rd, imm))
except:
print("Unable to parse line " + str(line) + " : " + str(tokens))
else:
print("Missing tokens in line " + str(line) + " : " + str(tokens))
raise
def link_auipc(line, tokens, symbols, off):
#AUIPC rd, label
if (len(tokens) == 3):
try:
rd = token_to_reg(tokens[1])
imm = pc_relative_symbol(tokens[2], off, symbols)
return iformat.le_encode(iformat.compile_u(0x17, rd, imm))
except:
print("Unable to parse line " + str(line) + " : " + str(tokens))
else:
print("Missing tokens in line " + str(line) + " : " + str(tokens))
raise
def link_dw(line, tokens, symbols, off):
#DW imm32
if len(tokens) == 2:
try:
imm = token_to_int(tokens[1], 0, symbols, off)
return iformat.le_encode(imm)
except:
print("Unable to parse line "+str(line)+" : "+str(tokens))
else:
print("Missing tokens in line "+str(line)+" : "+str(tokens))
raise
def link_dw(line, tokens, symbols, off):
#DW imm32
if len(tokens) == 2:
try:
imm = token_to_int(tokens[1], 0, symbols, off)
return iformat.le_encode(imm)
except:
print("Unable to parse line " + str(line) + " : " + str(tokens))
else:
print("Missing tokens in line " + str(line) + " : " + str(tokens))
raise
def link_lui(line, tokens, symbols, off):
#LUI rd, imm
if(len(tokens) == 3):
try:
rd = token_to_reg(tokens[1])
imm = token_to_int(tokens[2], 0, symbols, off)
return iformat.le_encode(iformat.compile_u(0x37, rd, imm))
except:
print("Unable to parse line "+str(line)+" : "+str(tokens))
else:
print("Missing tokens in line "+str(line)+" : "+str(tokens))
raise
def link_auipc(line, tokens, symbols, off):
#AUIPC rd, label
if(len(tokens) == 3):
try:
rd = token_to_reg(tokens[1])
imm = pc_relative_symbol(tokens[2], off, symbols)
return iformat.le_encode(iformat.compile_u(0x17, rd, imm))
except:
print("Unable to parse line "+str(line)+" : "+str(tokens))
else:
print("Missing tokens in line "+str(line)+" : "+str(tokens))
raise
def link_jal(line, tokens, symbols, off):
#JAL rd, label
if(len(tokens) == 3):
try:
rd = token_to_reg(tokens[1])
imm = int(pc_relative_symbol(tokens[2], off, symbols) / 1)
return iformat.le_encode(iformat.compile_u(0x6F, rd, iformat.jal_imm_split(imm)))
except:
print("Unable to parse line "+str(line)+" : "+str(tokens))
else:
print("Missing tokens in line "+str(line)+" : "+str(tokens))
raise
def link_jal(line, tokens, symbols, off):
#JAL rd, label
if (len(tokens) == 3):
try:
rd = token_to_reg(tokens[1])
imm = int(pc_relative_symbol(tokens[2], off, symbols) / 1)
return iformat.le_encode(
iformat.compile_u(0x6F, rd, iformat.jal_imm_split(imm)))
except:
print("Unable to parse line " + str(line) + " : " + str(tokens))
else:
print("Missing tokens in line " + str(line) + " : " + str(tokens))
raise
def link_jalr(line, tokens, symbols, off):
#JALR rd, rs, label
if(len(tokens) == 4):
try:
rd = token_to_reg(tokens[1])
rs = token_to_reg(tokens[2])
imm = pc_relative_symbol(tokens[3], off, symbols)
return iformat.le_encode(iformat.compile_i(0x67, rd, 0, rs, imm))
except:
print("Unable to parse line "+str(line)+" : "+str(tokens))
else:
print("Missing tokens in line "+str(line)+" : "+str(tokens))
raise
def link_jalr(line, tokens, symbols, off):
#JALR rd, rs, label
if (len(tokens) == 4):
try:
rd = token_to_reg(tokens[1])
rs = token_to_reg(tokens[2])
imm = pc_relative_symbol(tokens[3], off, symbols)
return iformat.le_encode(iformat.compile_i(0x67, rd, 0, rs, imm))
except:
print("Unable to parse line " + str(line) + " : " + str(tokens))
else:
print("Missing tokens in line " + str(line) + " : " + str(tokens))
raise
def link_rtor(line, tokens, symbols, off, funct3, funct7):
#XX rd, rs1, rs2
if(len(tokens) == 4):
try:
rd = token_to_reg(tokens[1])
rs1 = token_to_reg(tokens[2])
rs2 = token_to_reg(tokens[3])
return iformat.le_encode(iformat.compile_s(0x33, rd, funct3, rs1, rs2, funct7))
except:
print("Unable to parse line "+str(line)+" : "+str(tokens))
else:
print("Missing tokens in line "+str(line)+" : "+str(tokens))
raise
def link_shift(line, tokens, symbols, off, funct3, immu7):
#XI rd, rs, imm
if(len(tokens) == 4):
try:
rd = token_to_reg(tokens[1])
rs = token_to_reg(tokens[2])
imm = token_to_int(tokens[3], 0, symbols, off)
return iformat.le_encode(iformat.compile_i_s(0x13, rd, funct3, rs, imm, immu7))
except Exception as e:
print("Unable to parse line "+str(line)+" : "+str(tokens))
else:
print("Missing tokens in line "+str(line)+" : "+str(tokens))
raise
def link_lx(line, tokens, symbols, off, funct3):
#lx rd, rs, imm
if(len(tokens) == 4):
try:
rd = token_to_reg(tokens[1])
rs = token_to_reg(tokens[2])
imm = token_to_int(tokens[3], 0, symbols, off)
return iformat.le_encode(iformat.compile_i(0x3, rd, funct3, rs, imm))
except:
print("Unable to parse line "+str(line)+" : "+str(tokens))
else:
print("Missing tokens in line "+str(line)+" : "+str(tokens))
raise
def link_cbranch(line, tokens, symbols, off, funct3):
#BXX rd, rs, label
if(len(tokens) == 4):
try:
rs1 = token_to_reg(tokens[1])
rs2 = token_to_reg(tokens[2])
imm = int(pc_relative_symbol(tokens[3], off, symbols) / 1)
imms = iformat.sb_imm_split(imm)
return iformat.le_encode(iformat.compile_sb(0x63, imms[0], funct3, rs1, rs2, imms[1]))
except:
print("Unable to parse line "+str(line)+" : "+str(tokens))
else:
print("Missing tokens in line "+str(line)+" : "+str(tokens))
raise
def link_lx(line, tokens, symbols, off, funct3):
#lx rd, rs, imm
if (len(tokens) == 4):
try:
rd = token_to_reg(tokens[1])
rs = token_to_reg(tokens[2])
imm = token_to_int(tokens[3], 0, symbols, off)
return iformat.le_encode(
iformat.compile_i(0x3, rd, funct3, rs, imm))
except:
print("Unable to parse line " + str(line) + " : " + str(tokens))
else:
print("Missing tokens in line " + str(line) + " : " + str(tokens))
raise
def link_shift(line, tokens, symbols, off, funct3, immu7):
#XI rd, rs, imm
if (len(tokens) == 4):
try:
rd = token_to_reg(tokens[1])
rs = token_to_reg(tokens[2])
imm = token_to_int(tokens[3], 0, symbols, off)
return iformat.le_encode(
iformat.compile_i_s(0x13, rd, funct3, rs, imm, immu7))
except Exception as e:
print("Unable to parse line " + str(line) + " : " + str(tokens))
else:
print("Missing tokens in line " + str(line) + " : " + str(tokens))
raise
def link_rtor(line, tokens, symbols, off, funct3, funct7):
#XX rd, rs1, rs2
if (len(tokens) == 4):
try:
rd = token_to_reg(tokens[1])
rs1 = token_to_reg(tokens[2])
rs2 = token_to_reg(tokens[3])
return iformat.le_encode(
iformat.compile_s(0x33, rd, funct3, rs1, rs2, funct7))
except:
print("Unable to parse line " + str(line) + " : " + str(tokens))
else:
print("Missing tokens in line " + str(line) + " : " + str(tokens))
raise
def link_sx(line, tokens, symbols, off, funct3):
#SX rs1, rs2, imm --writes rs2 to [rs1]
if(len(tokens) == 4):
try:
rs1 = token_to_reg(tokens[1])
rs2 = token_to_reg(tokens[2])
imm = token_to_int(tokens[3], 0, symbols, off)
imm1 = int(imm & 0x1F)
imm2 = int(iformat.rshift(imm, 5) & 0x7F)
return iformat.le_encode(iformat.compile_s(0x23, imm1, funct3, rs1, rs2, imm2))
except:
print("Unable to parse line "+str(line)+" : "+str(tokens))
else:
print("Missing tokens in line "+str(line)+" : "+str(tokens))
raise
def link_cbranch(line, tokens, symbols, off, funct3):
#BXX rd, rs, label
if (len(tokens) == 4):
try:
rs1 = token_to_reg(tokens[1])
rs2 = token_to_reg(tokens[2])
imm = int(pc_relative_symbol(tokens[3], off, symbols) / 1)
imms = iformat.sb_imm_split(imm)
return iformat.le_encode(
iformat.compile_sb(0x63, imms[0], funct3, rs1, rs2, imms[1]))
except:
print("Unable to parse line " + str(line) + " : " + str(tokens))
else:
print("Missing tokens in line " + str(line) + " : " + str(tokens))
raise
def link_sx(line, tokens, symbols, off, funct3):
#SX rs1, rs2, imm --writes rs2 to [rs1]
if (len(tokens) == 4):
try:
rs1 = token_to_reg(tokens[1])
rs2 = token_to_reg(tokens[2])
imm = token_to_int(tokens[3], 0, symbols, off)
imm1 = int(imm & 0x1F)
imm2 = int(iformat.rshift(imm, 5) & 0x7F)
return iformat.le_encode(
iformat.compile_s(0x23, imm1, funct3, rs1, rs2, imm2))
except:
print("Unable to parse line " + str(line) + " : " + str(tokens))
else:
print("Missing tokens in line " + str(line) + " : " + str(tokens))
raise
