Maxim-integrated MAXQ622 Manual do Utilizador descarregar pdf (Página 224)

MAXQ612/MAXQ622 User’s Guide

16-14 Maxim Integrated

MOVE dst.<b>, #1 Set Bit

Description:

Sets the bit specified by dst.<b>.

Status Flags:

C, E (if dst is PSF)

Operation:

dst.<b> ← 1

Encoding:

1ddd dddd 1bbb 0111

Example(s):

; M0[0] = 00h

MOVE M0[0].1, #1 ; M0[0] = 02h

MOVE M0[0].7, #1 ; M0[0] = 82h

Special Notes:

Only system module 8 and peripheral modules (0 to 5) are supported by MOVE dst.<b>, #1.

NEG

Negate Accumulator

Description:

Performs a negation (two’s complement) of the active accumulator and returns the result back to the

active accumulator.

Status Flags:

S, Z

Operation:

Acc ← ~Acc + 1

Encoding:

1000 1010 1001 1010

Example(s):

; Acc = 0FEEDh, S=1, Z=0

NEG ; Acc = 0113h, S=0, Z=0

OR src Logical OR

Description:

Performs a logical-OR between the active accumulator (Acc or A[AP]) and the specified src data.

For the complete list of src specifiers, reference the MOVE instruction. The PFX[n] register may be

used to supply the high byte of data for 8-bit sources.

Status Flags:

S, Z

Operation:

Acc ← Acc OR src

Encoding:

f010 1010 ssss ssss

Example(s):

; Acc = 2345h for each example

OR A[3]

; A[3]= 0F0Fh → Acc = 2F4Fh

OR #1133h ; MOVE PFX[0], #11h (smart-prefixing)

; OR #33h → Acc = 3377h

Special Notes:

The active accumulator (Acc) is not allowed as the src for this operation.

1 2 ... 219 220 221 222 223 224 225 226 227 228 229 ... 254 255

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