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Register parameters
RST 20H, DEFW $0A0F
IN: A = flags A0 = type (0: step debug entry, 1: break point) [NOT IMPLEMENTED] A6 = call instruction (0: false, 1:true) [RESERVED] A7 = screen (0: user screen, 1: debug screen) [RESERVED] BHL = pointer to debug entry or break point
OUT: Fc=0, success and IX=handle Fc=1, failure and A=error RC_Hand, cannot allocate a debug handle RC_Wp, cannot debug in ROM
Registers affected after return: A. BCDEHL/IXIY same
.F ....../.... different
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Notes
- Operating system usage only
- API call implemented in OZ 5.0
DZ_Dis, Disassemble
DZ_Dbg, Enter debugger