Epson CMOS 32-Bit Single Chip Microcomputer S1C33L03 Manual de usuario descargar pdf (Pagina 36)

5 INSTRUCTION SET

EPSON

S1C33 FAMILY C33 PE CORE MANUAL

Extending register-to-register operation instructions

instructions, these instructions add or subtract the content of the rs register and the immediate specified by

an ext instruction according to the arithmetic operation to be performed. They then store the result in the rd

extend for an add operation is shown below.

Extending to rs

+ imm13

To extend to rs

+ imm13, enter one ext instruction directly before the target instruction.

Example: ext imm13

add

%rd,%rs

If not extended, rd

= rd + rs

When extended by one

ext instruction, rd = rs + imm13

0 0 0 0 0 0 0 0

0 0 0 00000000

31 13 12

imm13

Immediate

Data

Data + imm13

Extending to rs + imm26

To extend to rs

+ imm26, enter two ext instructions directly before the target instruction.

Example: ext imm13 (1)

ext imm13 (2)

add %rd,%rs

If not extended, rd

= rd + rs

When extended by two

ext instructions, rd = rs + imm26

000000

31 13 1226 25

imm13 (2)

imm13 (1)

Immediate

Data

Data + imm26

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 180 181

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Epson CMOS 32-Bit Single Chip Microcomputer S1C33L03 Manual de usuario Pagina 36