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PUSH (SPC700): Difference between revisions

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(→‎See Also: '816 pushes)
(sp decremented after)
 
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|4 cycles
|4 cycles
|+
|+
|[[Stack Addressing | Stack]]
|[[Stack Addressing | Stack]] - X
|4D
|4D
|1 byte
|1 byte
|4 cycles
|4 cycles
|+
|+
|[[Stack Addressing | Stack]]
|[[Stack Addressing | Stack]] - Y
|6D
|6D
|1 byte
|1 byte
|4 cycles
|4 cycles
|+
|+
|[[Stack Addressing | Stack]]
|[[Stack Addressing | Stack]]  
- PSW
|0D
|0D
|1 byte
|1 byte
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* the [[program status word]]
* the [[program status word]]


No flags are affected.
The [[stack pointer]] is decremented by one after the value is transferred.  No flags are affected.


==== Syntax ====
==== Syntax ====

Latest revision as of 03:54, 9 August 2024

Basic Info
Addressing Mode Opcode Length Speed
Accumulator 2D 1 byte 4 cycles
Stack - X 4D 1 byte 4 cycles
Stack - Y 6D 1 byte 4 cycles
Stack

- PSW

0D 1 byte 4 cycles
Flags Affected
N V P B H I Z C
. . . . . . . .

PUSH is an SPC700 command that pushes the value of a register to the stack. The register can be:

The stack pointer is decremented by one after the value is transferred. No flags are affected.

Syntax

PUSH A
PUSH X
PUSH Y
PUSH PSW

See Also

References