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Add interrupts module: INT 3 (CC breakpoint) vs INT 21h (DOS services)

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NASM sources, DOSBox/FreeDOS Debug/Unicorn harness, captured output and 31
assertions backing the ankurm.com article "INT 3 vs INT 21h in 8086 Assembly".

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01KqJyCidz3ZgRyHABv2GVJh
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asmhatre
2026-09-30 19:10:56 +00:00
co-authored by Claude Sonnet 5.5
commit 09af523f8c
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interrupts/output/04-int3-handler.txt
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CC (INT3): return IP = trap address + 1, IF pushed = 1, IF in handler = 0, TF in handler = 0, IF after IRET = 1
CD 03 (INT 3): return IP = trap address + 2, IF pushed = 1, IF in handler = 0, TF in handler = 0, IF after IRET = 1