Renesas H8S/2111B Manual de usuario Pagina 67

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 582
  • Tabla de contenidos
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 66
Rev. 1.00, 05/04, page 33 of 544
Table 2.4 Arithmetic Operations Instructions (2)
Instruction Size*
1
Function
DIVXS B/W Rd ÷ Rs Rd
Performs signed division on data in two general registers: either 16
bits ÷ 8 bits 8-bit quotient and 8-bit remainder or 32 bits ÷ 16 bits
16-bit quotient and 16-bit remainder.
CMP B/W/L Rd – Rs, Rd – #IMM
Compares data in a general register with data in another general
register or with immediate data, and sets the CCR bits according to
the result.
NEG B/W/L 0 – Rd Rd
Takes the two's complement (arithmetic complement) of data in a
general register.
EXTU W/L Rd (zero extension) Rd
Extends the lower 8 bits of a 16-bit register to word size, or the lower
16 bits of a 32-bit register to longword size, by padding with zeros on
the left.
EXTS W/L Rd (sign extension) Rd
Extends the lower 8 bits of a 16-bit register to word size, or the lower
16 bits of a 32-bit register to longword size, by extending the sign bit.
TAS*
2
B @ERd – 0, 1 (<bit 7> of @ERd)
Tests memory contents, and sets the most significant bit (bit 7) to 1.
Notes: 1. Size refers to the operand size.
B: Byte
W: Word
L: Longword
2. When using the TAS instruction, use registers ER0, ER1, ER4 and ER5.
Vista de pagina 66
1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 581 582

Comentarios a estos manuales

Sin comentarios