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ADC: Difference between revisions

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("borrow" is a term only used for subtraction)
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'''ADC''' (Add with Carry) is 65x instruction that performs an addition.
'''ADC''' (Add with Carry) is 65x instruction that performs an addition.
{| class="wikitable" style="float:right;clear:right;width:30%"
!colspan="8"|Basic Info
|+
|'''Addressing Mode'''
|'''Opcode'''
|'''Length'''
|'''Speed'''
|+
|immediate
|69
|2 bytes
|2 cycles
|+
|absolute
|6D
|3 bytes
|4 cycles
|+
|absolute long
|6F
|4 bytes
|5 cycles
|+
|direct page
|65
|2 bytes
|3 cycles
|+
|direct page indirect
|72
|2 bytes
|5 cycles
|+
|direct page indirect long
|67
|2 bytes
|6 cycles
|+
|absolute indexed by X
|7D
|3 bytes
|4 cycles
|+
|absolute long indexed by X
|7F
|4 bytes
|5 cycles
|+
|absolute indexed by Y
|79
|3 bytes
|4 cycles
|+
|direct page indexed by X
|75
|2 bytes
|4 cycles
|+
|direct page indexed by X
|61
|2 bytes
|6 cycles
|+
|direct page indirect indexed by Y
|71
|2 bytes
|5 cycles
|+
|direct page indirect long indexed by Y
|77
|2 bytes
|6 cycles
|+
|stack relative
|63
|2 bytes
|4 cycles
|+
|stack relative indirect indexed by Y
|73
|2 bytes
|7 cycles
|}


{| class="wikitable" style="float:right;clear:right;width:30%"
{| class="wikitable" style="float:right;clear:right;width:30%"

Revision as of 05:21, 2 May 2023

ADC (Add with Carry) is 65x instruction that performs an addition.

Basic Info
Addressing Mode Opcode Length Speed
immediate 69 2 bytes 2 cycles
absolute 6D 3 bytes 4 cycles
absolute long 6F 4 bytes 5 cycles
direct page 65 2 bytes 3 cycles
direct page indirect 72 2 bytes 5 cycles
direct page indirect long 67 2 bytes 6 cycles
absolute indexed by X 7D 3 bytes 4 cycles
absolute long indexed by X 7F 4 bytes 5 cycles
absolute indexed by Y 79 3 bytes 4 cycles
direct page indexed by X 75 2 bytes 4 cycles
direct page indexed by X 61 2 bytes 6 cycles
direct page indirect indexed by Y 71 2 bytes 5 cycles
direct page indirect long indexed by Y 77 2 bytes 6 cycles
stack relative 63 2 bytes 4 cycles
stack relative indirect indexed by Y 73 2 bytes 7 cycles
Flags Clobbered
N V M X D I Z C
. . . .

See Also