===== 02 SP4 F20 SPEED AND SPIN | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
cddisc's speed change, Stop, MotorOn and Init on a pressed disc, four runs.
Switches (Test 21h, bit1 door open, bit0 head at POS0): int3 00 @23618. Getstat: int3 02 @89814. Mode 25. HINTMSK was 1F.
Run 1.
Single to double speed, then ReadN at once: INT3 int3 02 @33674, first INT1 int1 22 @20457578
Double to single speed, then ReadN at once: INT3 int3 02 @76853, first INT1 int1 22 @150746965
Stop: int3 02 @54352 int2 00 @12624528
MotorOn after it: int3 00 @52624 int2 02 @88547584
Init: int3 02 @64820 int2 02 @5366692
Run 2.
Single to double speed, then ReadN at once: INT3 int3 02 @65946, first INT1 int1 22 @22528474
Double to single speed, then ReadN at once: INT3 int3 02 @32584, first INT1 int5 06 ..(2) @134730344
Stop: int3 02 @28490 int2 02 @36490
MotorOn after it: int5 03 ..(2) @24313 none
Init: int3 02 @75538 int2 02 @91715538
Run 3.
Single to double speed, then ReadN at once: INT3 int3 02 @33637, first INT1 int1 22 @20578341
Double to single speed, then ReadN at once: INT3 int3 02 @96435, first INT1 int1 22 @18182227
Stop: int3 02 @56994 int2 00 @13504402
MotorOn after it: int3 00 @52054 int2 02 @82233798
Init: int3 02 @64246 int2 02 @4893782
Run 4.
Single to double speed, then ReadN at once: INT3 int3 02 @33205, first INT1 int1 22 @36083669
Double to single speed, then ReadN at once: INT3 int3 02 @48424, first INT1 int1 22 @136003240
Stop: int3 02 @57664 int2 00 @12829680
MotorOn after it: int3 00 @52046 int2 02 @67140062
Init: int3 02 @83652 int2 02 @4909236
Mode 20 put back to 25: int3 02 @31460
Done.