Make test as intended. It fails atm. Simplify driver code.
Chris Pressey
2 years ago
| 60 | 60 |
if options.optimize_fallthru:
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| 61 | 61 |
from sixtypical.fallthru import FallthruAnalyzer
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| 62 | 62 |
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| 63 | |
def dump(data, label=None):
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| 64 | |
if not options.dump_fallthru_info:
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| 65 | |
return
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| 66 | |
if label:
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| 67 | |
sys.stdout.write("*** {}:\n".format(label))
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| 68 | |
sys.stdout.write(json.dumps(data, indent=4, sort_keys=True, separators=(',', ': ')))
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| 69 | |
sys.stdout.write("\n")
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| 70 | |
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| 71 | 63 |
fa = FallthruAnalyzer(symtab, debug=options.debug)
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| 72 | 64 |
fa.analyze_program(program)
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| 73 | 65 |
compilation_roster = fa.serialize()
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| 74 | |
dump(compilation_roster)
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|
66 |
if options.dump_fallthru_info:
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|
67 |
sys.stdout.write(json.dumps(compilation_roster, indent=4, sort_keys=True, separators=(',', ': ')))
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| 75 | 68 |
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| 76 | 69 |
if options.analyze_only or (options.output is None and not options.run_on):
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| 77 | 70 |
return
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| 383 | 383 |
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| 384 | 384 |
It cannot optimize out the `goto`s if they are different.
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| 385 | 385 |
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| 386 | |
Note, this currently produces unfortunately unoptimized code,
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| 387 | |
because generating code for the "true" branch of an `if` always
|
| 388 | |
generates a jump out of the `if`, even if the last instruction
|
| 389 | |
in the "true" branch is a `goto`.
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| 390 | |
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| 391 | 386 |
| define foo routine trashes a, z, n
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| 392 | 387 |
| {
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| 393 | 388 |
| ld a, 0
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| 410 | 405 |
| }
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| 411 | 406 |
= $080D RTS
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| 412 | 407 |
= $080E LDA #$00
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| 413 | |
= $0810 BNE $081A
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|
408 |
= $0810 BNE $0817
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| 414 | 409 |
= $0812 LDA #$01
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| 415 | |
= $0814 JMP $081F
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| 416 | |
= $0817 JMP $081F
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| 417 | |
= $081A LDA #$02
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| 418 | |
= $081C JMP $080D
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| 419 | |
= $081F LDA #$FF
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| 420 | |
= $0821 RTS
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|
410 |
= $0814 JMP $081C
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|
411 |
= $0817 LDA #$02
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|
412 |
= $0819 JMP $080D
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|
413 |
= $081C LDA #$FF
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|
414 |
= $081E RTS
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