Echelon Neuron Manual do Utilizador descarregar pdf (Página 183)

Registers Affected: None

Example:

This example shifts 16 left 2.

pushs #d’2 ; (d’2)

push #d’16 ; (d’16, d’2)

call _l_shift8 ; (d’64)

_l_shift8s (Left Shift Signed, 8 Bit)

This function shifts a signed integer left. b must be in the range 0..7.

Stack Transformation: (a, b -- a<<b)

Location: Near

Registers Affected: None

Example:

This example shifts 16 left 2.

pushs #d’2 ; (d’2)

push #d’16 ; (d’16, d’2)

call _l_shift8s ; (d’64)

_l_shift8_<n> (Left Shift by <n>, 8 Bit)

This function shifts an integer left. n must be in the range 3..7.

Stack Transformation: (a -- a<<n)

Location: Near

Registers Affected: None

Example:

This example shifts 16 left 3.

push #d’16 ; (d’16)

call _l_shift8_3 ; (d’128)

_ldP0_fetchl (Load P0 from Fetched Location)

This function takes a 16-bit address, loads two bytes from that location and

returns them.

Stack Transformation: (address(2) -- [address(2)+1], [address(2)])

Neuron Assembly Language Reference 173

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