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List of SPC700 Addressing Modes: Difference between revisions

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The [[SPC700]] supports some unusual addressing modes.  The number of bytes column shows the total length of instructions using that addressing mode.
{| class="wikitable"
{| class="wikitable"
! Symbol !! Addressing Mode !! # of bytes
! Symbol !! Addressing Mode !! # of bytes
Line 8: Line 10:
| dp+Y || Y-Indexed Direct Page || 2
| dp+Y || Y-Indexed Direct Page || 2
|-
|-
| (X) || Indirect || 1
| (X) || [[Indirect Addressing|Indirect]] || 1
|-
|-
| (X)+ || Indirect Auto-Increment || 1
| (X)+ || Indirect Auto-Increment || 1
Line 18: Line 20:
| dp, #imm || Immediate Data to D.P. || 3
| dp, #imm || Immediate Data to D.P. || 3
|-
|-
| dp.bit || [[Direct Page Bit]] || 2
| dp.bit || [[Direct Page Bit Addressing|Direct Page Bit]] || 2
|-
|-
| dp.bit, rel || [[Direct Page Bit Relative]] || 3
| dp.bit, rel || [[Direct Page Bit Relative]] || 3

Latest revision as of 14:44, 1 August 2024

The SPC700 supports some unusual addressing modes. The number of bytes column shows the total length of instructions using that addressing mode.

Symbol Addressing Mode # of bytes
dp Direct Page 2
dp+X X-Indexed Direct Page 2
dp+Y Y-Indexed Direct Page 2
(X) Indirect 1
(X)+ Indirect Auto-Increment 1
dp. dp Direct Page to D.P. 3
(X), (Y) Indirect Page to I.P 1
dp, #imm Immediate Data to D.P. 3
dp.bit Direct Page Bit 2
dp.bit, rel Direct Page Bit Relative 3
mem.bit Absolute Boolean Bit 3
!abs Absolute 3
!abs+X X-Indexed Absolute 3
!abs+y Y-Indexed Absolute 3
[DP+X] X-Indexed Indirect 2
[DP+Y] Indirect Y-Indexed Indirect 2

Reference

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