mirror of
https://github.com/Druthulu/BFM-decomp
synced 2026-09-27 22:45:39 -04:00
Drew T
29 lines
1.1 KiB
Python
29 lines
1.1 KiB
Python
import re,sys,collections
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F="asm/ov_SC03_090/nonmatchings/ov_SC03_090_jr_8017CA80/func_8017D960.s"
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ins=[] # (idx, addr, op, args, label_before)
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lbl={}
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cur=None
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for line in open(F):
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m=re.match(r'\s*\.?(L[0-9A-F]+):',line.strip())
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if line.strip().endswith(':') and line.strip().startswith('.L'):
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cur=line.strip()[:-1]; continue
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m=re.match(r'\s*/\* \w+ ([0-9A-F]{8}) \w{8} \*/\s+(\S+)\s*(.*)',line)
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if m:
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ins.append([len(ins),m.group(1),m.group2 if False else m.group(2),m.group(3).strip(),cur])
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if cur: lbl[cur]=len(ins)-1
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cur=None
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# branch edges
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back=[];fwd=[]
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addr2i={x[1]:x[0] for x in ins}
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for i,a,op,args,l in ins:
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m=re.search(r'\.(L[0-9A-F]{8})',args)
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if m and op in ('j','beqz','bnez','bgez','blez','bgtz','bltz','beq','bne','b'):
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t=lbl.get('.'+m.group(1))
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if t is None: continue
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if t<i: back.append((i,t,op))
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else: fwd.append((i,t,op))
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print("total ins",len(ins))
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print("=== BACK EDGES (loops) ===")
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for i,t,op in back:
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print(f" ins {t:5d} (0x{ins[t][1]}) <- {i:5d} (0x{ins[i][1]}) {op} bodylen={i-t}")
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