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author | Afonso Oliveira <Afonso.Oliveira@synopsys.com> | 2024-08-28 10:57:12 +0100 |
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committer | Afonso Oliveira <Afonso.Oliveira@synopsys.com> | 2024-08-28 10:57:12 +0100 |
commit | 69258f2661ef972ff3fc0d8903f222690158f271 (patch) | |
tree | 2290df1264769de4c15cb3a08f4e2c9e73d8b8d9 /parse.py | |
parent | 07b95c53a2585412f1a9044716445eb87af1e9d5 (diff) | |
download | riscv-opcodes-69258f2661ef972ff3fc0d8903f222690158f271.zip riscv-opcodes-69258f2661ef972ff3fc0d8903f222690158f271.tar.gz riscv-opcodes-69258f2661ef972ff3fc0d8903f222690158f271.tar.bz2 |
Added Pseudo-instructions from F and D. Allow for instructions to have a special field
Signed-off-by: Afonso Oliveira <Afonso.Oliveira@synopsys.com>
Diffstat (limited to 'parse.py')
-rwxr-xr-x | parse.py | 29 |
1 files changed, 20 insertions, 9 deletions
@@ -113,16 +113,27 @@ def process_enc_line(line, ext): encoding_args = encoding.copy() for a in args: if a not in arg_lut: - logging.error(f' Found variable {a} in instruction {name} whose mapping in arg_lut does not exist') - raise SystemExit(1) - else: - (msb, lsb) = arg_lut[a] - for ind in range(lsb, msb + 1): - # overlapping bits - if encoding_args[31 - ind] != '-': - logging.error(f' Found variable {a} in instruction {name} overlapping {encoding_args[31 - ind]} variable in bit {ind}') + if len(parts := a.split('=')) == 2: + existing_arg, new_arg = parts + if existing_arg in arg_lut: + print ("old",arg_lut) + arg_lut[a] = arg_lut[existing_arg] + print ("new\n", arg_lut) + + else: + logging.error(f' Found field {existing_arg} in variable {a} in instruction {name} whose mapping in arg_lut does not exist') raise SystemExit(1) - encoding_args[31 - ind] = a + else: + logging.error(f' Found variable {a} in instruction {name} whose mapping in arg_lut does not exist') + raise SystemExit(1) + (msb, lsb) = arg_lut[a] + for ind in range(lsb, msb + 1): + # overlapping bits + if encoding_args[31 - ind] != '-': + logging.error(f' Found variable {a} in instruction {name} overlapping {encoding_args[31 - ind]} variable in bit {ind}') + raise SystemExit(1) + encoding_args[31 - ind] = a + # update the fields of the instruction as a dict and return back along with # the name of the instruction |