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Designer’s
Handbook
41
80 24 80
//terminate bootstrap, start at address zero
;test program
ld hl,1
ld b,16
loop:
ld a,(hl)
add hl,hl ; shift left
djnz loop ; 16 steps
jp 0
; continue test
If
this test runs it will toggle the first 16 address lines. In addition, all of the data lines must
be
functioning or the program would not execute correctly.
Содержание 2000
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