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List of SPC700 Addressing Modes
From SnesLab
(Redirected from List of SPC700 Admodes)
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
- Figure 3-8-3 on page 3-8-9 of Book I of the official Super Nintendo development manual