
151
μ
PD75237
Since the PC does not increment during execution of GETI instruction, it continues processing with
the address following GETI instruction.
If an instruction preceding the GETI instruction has the skip function, the GETI instruction is skipped
as is the case with all other 1-byte instructions. If the instruction referred to by the GETI instruction has
the skip function, an instruction following the GETI instruction is skipped.
When instructions having stack effects are referred to by the GETI instruction, the following operations
are carried out:
If an instruction preceding GETI instruction also has the stack effects of the same group, the execution
of GETI instruction eliminates the stack effects and the instructions referred to are not skipped.
If an instruction following GETI instruction also has the stack effects of the same group, the stack effects
derived from the instructions referred to are valid and the following instruction is skipped.
(2)
Bit manipulation instruction
In addition to normal bit manipulation instructions (set and clear instructions), the bit test instruction, bit
transfer instruction and bit Boolean instructions (AND, OR, XOR) are available for the
μ
PD75237. Manipulation
bits are specified by bit manipulation addressing.
Three types of available addressing operations and bits manipulated by each addressing are shown below.
Addressing
Specifiable Peripheral Hardware
Specifiable Bit Address Range
RBE/MBE/IST1, IST0/IE
×××
/IRQ
×××
FB0H to FBFH
PORT0 to PORT15
FF0H to FFFH
pmem.@L
BSB0 to BSB3, PORT0 to PORT15
FC0H to FFFH
All peripheral hardware devices enabled
for bit manipulation
All manipulatable bits of the memory
bank specified by MB
fmem.bit
@H+mem.bit
Remarks
1.
2.
×××
: 0, 1, 2, 3, 4, BT, T0, TPG, CSI0, KS, W
MB = MBE MBS