Mostek z80 - Page 53

HISTORY CLOCK ENABLE IS (ALL) CYCLES iTO CHANGE SELECT ONE:
ALL(0) DMA(l) CPU(2) PA7L(3) PA7H(4)
'lWORD(6)
[ ,PB8L(8) ,PB8H(9)] -> lCR)
,! !1.
CR
)
< execute target program
,
HWBP ENCOUNTERED 62 USEC
PC M' I IF BC DE HL DISASSEMBLY
0005 FD3B 0041 FFFF FFFF 0200 INC A
,B C,A{CR)
< clear all breakpoints
IX IY SP
BFFF FFFF 01F0 •
,B 10,M,T(CR)
,B lCR)
< set 10 millisecond timer breakpoint
< list breakpoints
NO sw BREAKPOINT
NO fW BREAKPOINT
TIMER BREAKPOINT: 9,963 USEC < note slight round-off and conversion
error
< execute target program
TIMER BREAK ENCOUNTERED 9,964 USEe
PC M' I IF BC DE HL DISASSEMBLY
0008 0093 0041 FFFF Fli'FF 0200 JR -0AH
,~ :TS{CR)
:TS 1000 250 (UP)
:TS 250 •
,E !1.CR)
< change t-state value
< execute again
IX IY SP
BFE'F FFFF 01F0 •
TIMER BREAK ENCOUNTERED 2,491 USEe < note different time value
PC M' I IF BC DE HL DISASSEMBLY IX IY SP
0008 0093 0041 FFFF FFFF 0200 JR -0AH BFFF FFFF 01F0 •
,M :'rs (CR)
:TS 250 113130 (UP)
:TS 113013 •
,B C,A(CR)
< restore old value
3-17