PDSP1601/PDSP1601A

13

Barrel Shifter or ALU Register Instructions

Function

After the rising edge of CLK at the beginning of the cycle in which this instruction is

executed, the contents of the Right register will appear on the output. On the rising edge

of CLK at the end of the cycle, and the data on the register inputs will be loaded into the

Left Register.

After the rising edge of CLK at the beginning of the cycle in which this instruction is

executed, the contents of the Left register will appear on the output. On the rising edge

of CLK at the end of the cycle, the data on the register inputs will be loaded into the Right

Register.

After the rising edge of CLK at the beginning of the cycle in which this instruction is

executed, the contents of the Left register will appear on the output. On the rising edge

of CLK at the end of the cycle, the data on the register inputs will be loaded into the Left

Register.

After the rising edge of CLK at the beginning of the cycle in which this instruction is

executed, the contents of the Right register will appear on the output. On the rising edge

of CLK at the end of the cycle, the data on the register inputs will be loaded into the Right

Register.

After the rising edge of CLK at the beginning of the cycle in which this instruction is

executed, the contents of the Left register will appear on the output. On the rising edge

of CLK at the end of the cycle, and the data on the register inputs will be loaded into both

Left and Right Register.

After the rising edge of CLK at the beginning of the cycle in which this instruction is

executed, the contents of the Right register will appear on the output. On the rising edge

of CLK at the end of the cycle no load operation will occur, the register contents will remain

unchanged.

After the rising edge of CLK at the beginning of the cycle in which this instruction is

executed, the contents of the Left register will appear on the output. On the rising edge

of CLK at the end of the cycle no load operation will occur, the register contents will remain

unchanged.

After the rising edge of CLK at the beginning of the cycle in which this instruction is

executed, the input to the registers will appear on the output. On the rising edge

of CLK at the end of the cycle no load operation will occur, the register contents will remain

unchanged.

Op Code

<0>

<1>

<2>

<3>

<4>

<5>

<6>

<7>

Mnemonic

LLRRR

LRRLR

LLRLR

LRRRR

LBRLR

NOPRR

NOPLR

NOPPS