Files
8086-Programs/interrupts/asm/bp_target.asm
T
asmhatreandClaude Sonnet 5.5 09af523f8c Add interrupts module: INT 3 (CC breakpoint) vs INT 21h (DOS services)
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
2026-09-30 19:10:56 +00:00

14 lines
402 B
NASM

; bp_target.asm -- a flat 16-bit routine used by the Unicorn breakpoint experiment.
; Three one-byte INC CX instructions, so a two-byte CD 03 patch on the first one
; overwrites the first byte of the second one too.
bits 16
org 0x7C00
start:
xor cx, cx
site:
inc cx ; 41 <- breakpoint goes here
inc cx ; 41
inc cx ; 41
done:
nop