diff options
Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 8 |
1 files changed, 5 insertions, 3 deletions
@@ -157,7 +157,7 @@ All registers are $00 on power-on and reset. | ------ + ---------------------------------- + ------------------------------------- + ----------------------------------------- | | 010111 | 42 (FDS conversions) | | | | ------ + ---------------------------------- + ------------------------------------- + ----------------------------------------- | -| 011000 | 21 (VRC2/VRC4) | 0 - switch A0 and A1 lines: | | +| 011000 | 21 (VRC2/VRC4) | 0 - switch A0 and A1 lines: | | | | 22 (VRC2/VRC4) | 0=A0,A1 like VRC2b (mapper 23), | | | | 23 (VRC2/VRC4) | 1=A1,A0 like VRC2a(22), VRC2c(25) | | | | 25 (VRC2/VRC4) | 1 - divide CHR bank select by two | | @@ -184,7 +184,9 @@ All registers are $00 on power-on and reset. | ------ + ---------------------------------- + ------------------------------------- + ----------------------------------------- | | 100010 | 75 (VRC1) | | | | ------ + ---------------------------------- + ------------------------------------- + ----------------------------------------- | -| 100011 | 83 | | Submapper 0 only | +| 100011 | 83 | 0 - DIP switch 0 | Partial support, submapper 1 requires | +| | | 1 - DIP switch 1 | 512 KiB of CHR RAM | +| | | 2 - use submapper 1 | | | ------ + ---------------------------------- + ------------------------------------- + ----------------------------------------- | | 100100 | 67 (Sunsoft-3) | | | | ------ + ---------------------------------- + ------------------------------------- + ----------------------------------------- | @@ -208,7 +210,7 @@ All registers are $00 on power-on and reset. | ---- + ----- + ----- + ----- + ----- + ---------------------------------------- | | 100 | A | B | C | D | Universal, used by MMC3 mode 0, etc. | | ---- + ----- + ----- + ----- + ----- + ---------------------------------------- | -| 101 | C | B | A | D | MMC3 mode #1 | +| 101 | C | B | A | D | MMC3 mode 1 | | ---- + ----- + ----- + ----- + ----- + ---------------------------------------- | | 110 | B | Mapper 163 | | ---- + ----------------------------- + ---------------------------------------- | |