Hello CLAUDIO.
S bado Febrero 06 1999 15:16, CLAUDIO MASSAO KAWATA - 900293 wrote:
CK> Third (the first really MSX related topic): does anybody know
CK> how the Z80's "R" register works? It controls the "REFRESH" sign
CK> of the CPU, but when is it generated? When it counts "zero"? It
CK> wouldn't be very smart, 'cause the register can be set by soft...
CK> So...?
This register can't be set by us, is changed on every operation made by the
Z80. The only useful thing you can make with 'R' register is a randomizer for
your programs.
jam
... LSD A, (HL) ; ponemos en el acumulador el trippy al que apunta HL.
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