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This table indicates the number of clock periods for the single operand
instructions. The number of bus read and write cycles is shown in parenthesis
as (r/w). The number of clock periods and the number of read and write cycles
must be added respectively to those of the effective address calculation
where indicated.
Single Operand Instruction Execution Times
instruction size register memory
CLR byte,word 4(1/0) 8(1/1) +
long 6(1/0) 12(1/2) +
NBCD byte 6(1/0) 8(1/1) +
NEG byte,word 4(1/0) 8(1/1) +
long 6(1/0) 12(1/2) +
NEGX byte,word 4(1/0) 8(1/1) +
long 6(1/0) 12(1/2) +
NOT byte,word 4(1/0) 8(1/1) +
long 6(1/0) 12(1/2) +
Scc byte,false 4(1/0) 8(1/1) +
byte,true 6(1/0) 8(1/1) +
TAS # byte 4(1/0) 10(1/1) +
TST byte,word 4(1/0) 4(1/0) +
long 4(1/0) 4(1/0) +
+ add effective address calculation time
# This instruction should never be used on the Amiga as its invisiable
read/write cycle can disrupt system DMA.