SVE Instruction List by Dougall Johnson
# PMULLT: Polynomial multiply long (top)

PMULLT Zd.D, Zn.S, Zm.S (SVE2 (SME

svuint64_t svpmullt[_u64](svuint32_t op1, svuint32_t op2)

svuint32_t svpmullt_pair[_u32](svuint32_t op1, svuint32_t op2)

## 128-bit SVE

Interpreting each odd 32-bit integer from (1) and (2) as a ℤ_{2} polynomial, set the double-width (3) to (1) * (2). This can also be described as a carryless multiplication, or a multiplication using exclusive-or instead of addition.

## 256-bit SVE

Interpreting each odd 32-bit integer from (1) and (2) as a ℤ_{2} polynomial, set the double-width (3) to (1) * (2). This can also be described as a carryless multiplication, or a multiplication using exclusive-or instead of addition.

## 512-bit SVE

Interpreting each odd 32-bit integer from (1) and (2) as a ℤ_{2} polynomial, set the double-width (3) to (1) * (2). This can also be described as a carryless multiplication, or a multiplication using exclusive-or instead of addition.

## Larger sizes

## 1024-bit SVE

Interpreting each odd 32-bit integer from (1) and (2) as a ℤ_{2} polynomial, set the double-width (3) to (1) * (2). This can also be described as a carryless multiplication, or a multiplication using exclusive-or instead of addition.

## 2048-bit SVE

Interpreting each odd 32-bit integer from (1) and (2) as a ℤ_{2} polynomial, set the double-width (3) to (1) * (2). This can also be described as a carryless multiplication, or a multiplication using exclusive-or instead of addition.

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Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.