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BRK (SPC700): Difference between revisions

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BRK very well could be the only interrupt source on the S-SMP.  It is the only instruction to unconditionally set the [[break flag]].
BRK very well could be the only interrupt source on the S-SMP.  It is the only instruction to unconditionally set the [[break flag]].
To return from the interrupt, use [[RETI]].


=== See Also ===
=== See Also ===
* [[BRK]] (65c816)
* [[BRK]] (65c816)
* [[RETI]]
* [[SLEEP]]
* [[SLEEP]]
* [[STOP]]
* [[STOP]]

Revision as of 05:58, 22 July 2024

Basic Info
Addressing Mode Opcode Length Speed
Stack / Interrupt 0F 1 byte 8 cycles
Flags Affected
N V P B H I Z C
. . . 1 . 0 . .

BRK is an SPC700 instruction that triggers a software interrupt. The program counter and flags are pushed to the stack. The program counter then jumps to the address stored at $FFDE.

Syntax

BRK

BRK very well could be the only interrupt source on the S-SMP. It is the only instruction to unconditionally set the break flag.

To return from the interrupt, use RETI.

See Also

References