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BCC (SPC700): Difference between revisions

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'''BCC''' is an [[SPC700]] instruction that performs a branch when the carry flag is clear.
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{| class="wikitable" style="float:right;clear:right;width:40%"
!colspan="8"|Basic Info
!colspan="8"|Basic Info
|+
|+
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|'''Speed'''
|'''Speed'''
|+
|+
|relative
|[[Program Counter Relative]]
|90
|90
|2 bytes
|2 bytes
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!colspan="8"|Flags Clobbered
!colspan="8"|Flags Affected
|+
|+
|N
|[[Negative Flag|N]]
|V
|[[Overflow Flag|V]]
|P
|[[Direct Page Flag|P]]
|B
|[[Break Flag|B]]
|H
|[[Half-Carry Flag|H]]
|I
|[[Interrupt Enable Flag|I]]
|Z
|[[Zero Flag|Z]]
|C
|[[Carry Flag|C]]
|+
|+
|.
|.
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|.
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'''BCC''' is an [[SPC700]] instruction that performs a branch when the [[carry flag]] is clear.  If the carry flag is set, control simply falls through BCC to the next instruction.
No flags are affected.
==== Syntax ====
<pre>
BCC rel
</pre>
Where rel is a two's complement offset.


=== See Also ===
=== See Also ===
* [[BCC]]
* [[BCC]]
* [[BCS (SPC700)]]


=== External Links ===
=== External Links ===
* [https://archive.org/details/SNESDevManual/book1/page/n233 Appendix C-8 of Book I] of the official Super Nintendo development manual
* Table C-15, [https://archive.org/details/SNESDevManual/book1/page/n233 Appendix C-8 of Book I] of the official Super Nintendo development manual
* anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L358


[[Category:ASM]]
[[Category:ASM]]
[[Category:SPC700]]
[[Category:SPC700]]
[[Category:Branching Commands]]
[[Category:Branching Commands]]
[[Category:Two-byte Instructions]]

Latest revision as of 15:24, 14 August 2024

Basic Info
Addressing Mode Opcode Length Speed
Program Counter Relative 90 2 bytes when condition false: 2 cycles

when condition true: 4 cycles

Flags Affected
N V P B H I Z C
. . . . . . . .

BCC is an SPC700 instruction that performs a branch when the carry flag is clear. If the carry flag is set, control simply falls through BCC to the next instruction.

No flags are affected.

Syntax

BCC rel

Where rel is a two's complement offset.

See Also

External Links