Maxim-integrated DS4830 Optical Microcontroller Uživatelský manuál stáhnout pdf (Strana 207)

DS4830 User’s Guide

207

POP dst Pop Word from the Stack

Description: Pops a single word from the stack (@SP) to the specified dst and decrements the stack pointer

(SP).

Status Flags: S, Z (if dst = Acc or AP or APC)

C, E (if dst = PSF)

Operation: dst  @ SP--

Encoding: 15 0

1ddd

dddd

0000

1101

Example(s): POP GR ; GR  1234h

POP @DP[0] ; @DP[0]  76h (WBS0=0)

; @DP[0]  0876h (WBS0=1)

Stack Data:

xxxxh

1234h

 SP (initial)

0876h

 SP (after POP GR)

xxxxh

 SP (after POP @DP[0])

xxxxh

POPI dst Pop Word from the Stack Enable Interrupts

Description: Pops a single word from the stack (@SP) to the specified dst and decrements the stack pointer

(SP). Additionally, POPI returns the interrupt logic to a state in which it can acknowledge

additional interrupts.

Status Flags: S, Z (if dst = Acc or AP or APC)

C, E (if dst = PSF)

Operation: dst  @ SP--

INS  0

Encoding: 15 0

1ddd

dddd

1000

1101

Example(s): See POP

PUSH src Push Word to the Stack

Description: Increments the stack pointer (SP) and pushes a single word specified by src to the stack (@SP).

Status Flags: None

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Maxim-integrated DS4830 Optical Microcontroller Uživatelský manuál Strana 207