Hitachi SH7750 series Hardware Manual page 155

Superh risc engine
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Table 7.4
Arithmetic Operation Instructions (cont)
Instruction
EXTS.W
Rm,Rn
EXTU.B
Rm,Rn
EXTU.W
Rm,Rn
@Rm+,@Rn+ Signed, (Rn) × (Rm) + MAC →
MAC.L
@Rm+,@Rn+ Signed, (Rn) × (Rm) + MAC →
MAC.W
MUL.L
Rm,Rn
MULS.W
Rm,Rn
MULU.W
Rm,Rn
NEG
Rm,Rn
NEGC
Rm,Rn
SUB
Rm,Rn
SUBC
Rm,Rn
SUBV
Rm,Rn
Operation
Rm sign-extended from
word → Rn
Rm zero-extended from
byte → Rn
Rm zero-extended from
word → Rn
MAC
Rn + 4 → Rn, Rm + 4 → Rm
32 × 32 + 64 → 64 bits
MAC
Rn + 2 → Rn, Rm + 2 → Rm
16 × 16 + 64 → 64 bits
Rn × Rm → MACL
32 × 32 → 32 bits
Signed, Rn × Rm → MACL
16 × 16 → 32 bits
Unsigned, Rn × Rm → MACL
16 × 16 → 32 bits
0 – Rm → Rn
0 – Rm – T → Rn, borrow → T
Rn – Rm → Rn
Rn – Rm – T → Rn, borrow → T 0011nnnnmmmm1010 —
Rn – Rm → Rn, underflow → T 0011nnnnmmmm1011 —
Instruction Code
0110nnnnmmmm1111 —
0110nnnnmmmm1100 —
0110nnnnmmmm1101 —
0000nnnnmmmm1111 —
0100nnnnmmmm1111 —
0000nnnnmmmm0111 —
0010nnnnmmmm1111 —
0010nnnnmmmm1110 —
0110nnnnmmmm1011 —
0110nnnnmmmm1010 —
0011nnnnmmmm1000 —
Rev. 4.0, 04/00, page 139 of 850
Privileged
T Bit
Borrow
Borrow
Underflow

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