HP 64700 User Manual page 77

M>bc -e bp
M>bp 489
M>bp 412
M>sort
# bp -e 489;r;w 1;bp -e 412;r;w 1;m -db 500..5ff
# waiting for 1 second....
# waiting for 1 second....
00500..0050f 80 80 81 83 83 85 88 89 8e 8f 8f 92 92 92 93 94
00510..0051f 95 97 97 99 9a 9a 9b 9b 9b 9d 9d 9d 9d a0 a0 a0
00520..0052f a1 a2 a2 a2 a4 a5 a6 a8 a8 aa aa ab ac ad af af
00530..0053f af b3 b4 b4 b4 b6 b7 b7 b7 b9 ba bb bb bc be c0
00540..0054f c0 c1 c2 c2 c3 c4 c7 c7 c8 c8 c9 ca cc cd cd d0
00550..0055f d1 d1 d2 d2 d3 d4 d4 d6 d8 d9 d9 db dc df e0 e1
00560..0056f e2 e4 e4 e5 e6 e6 e6 e8 ea ea ec ec f0 f0 f0 f2
00570..0057f f4 f4 f4 f6 f6 f6 f8 fb fc fd fd fe 01 02 03 04
00580..0058f 06 07 07 08 09 0b 0e 0e 11 13 13 14 15 18 18 19
00590..0059f 1e 1e 20 21 22 23 24 25 26 26 27 28 28 2c 2c 2c
005a0..005af 2c 2f 2f 31 31 32 32 32 33 33 34 35 35 36 37 37
005b0..005bf 3e 3e 3e 3f 41 43 44 45 46 46 47 47 48 48 48 49
005c0..005cf 4a 4a 4b 4b 4c 4d 4d 4d 4d 4d 4e 4e 4f 50 52 55
005d0..005df 56 56 56 57 58 58 59 5a 5a 5c 5e 5f 61 61 63 66
005e0..005ef 67 68 68 69 6a 6a 6a 6b 6b 6c 6d 6e 6e 6f 6f 6f
005f0..005ff 70 70 71 73 74 78 7a 7a 7b 7c 7c 7d 7e 7f 7f 39
!ASYNC_STAT 615! Software breakpoint: 0000:0489
!ASYNC_STAT 615! Software breakpoint: 0000:0412
Enable software breakpoints with the bc (emulator break conditions)
command, and execute the sort macro.
Look carefully at the last several bytes of the RESULTS area. You
may notice that a byte is out of order. If not, execute the sort macro,
and look at the display again. Sometimes, the program works correctly;
other times, you will see a byte out of order.
The memory display shows that the QSORT routine works for the
most part, which makes you suspect that the problem occurs on the fi-
nal write to the RESULTS area. To verify this, you might set up the se-
quencer to trigger on any event, store only the address following the re-
turn from QSORT (to the main program), and prestore writes to the
last eight bytes of the RESULTS area.
Accessing Full Analyzer Capability 3-29