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Add native cheat support #102

Merged
merged 1 commit into from
Sep 29, 2020
Merged

Add native cheat support #102

merged 1 commit into from
Sep 29, 2020

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negativeExponent
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  • Supports cheats in the form of F82xxx-F83xxx (physical
    address. RAM)
  • Cheats in 1F0xxx-1F1xxx (raw address, RAM)
  • Cheats in 00D000-100000 (raw address, System Card Ram)
  • Cheats in 100000-110000 (raw address, CD RAM)
  • Cheats in 802000-802000 (physical address, CD RAM)
  • Cheats in F82000-F83000 (physical address, main RAM)
  • as well as multi-line cheats.

Notes:

  • Cheats has to be a 9-digit format, address in 6-digit followed by ':'
    separator and then a 1-byte value, aka xxxxxx:yy
  • Multiline cheats has to be represented as xxxxxx:yy+xxxxxx:yy with '+'
    as a code separator
  • It is best to use raw format (or mednafen code formats) within the
    range expected above.
  • ROM based cheats not implemented (most of the labeled raw address) as
    they require writing to read-only memory.

Reference: libretro/beetle-pce-fast-libretro#93

- Supports cheats in the form of F82xxx-F83xxx (physical
  address. RAM)
- Cheats in 1F0xxx-1F1xxx (raw address, RAM)
- Cheats in 00D000-100000 (raw address, System Card Ram)
- Cheats in 100000-110000 (raw address, CD RAM)
-
- Cheats in 802000-802000 (physical address, CD RAM)
- Cheats in F82000-F83000 (physical address, main RAM)
-
- as well as multi-line cheats.

Notes:
- Cheats has to be a 9-digit format, address in 6-digit followed by ':'
  separator and then a 1-byte value, aka xxxxxx:yy
- Multiline cheats has to be represented as xxxxxx:yy+xxxxxx:yy with '+'
  as a code separator
- It is best to use raw format (or mednafen code formats) within the
  range expected above.
- ROM based cheats not implemented (most of the labeled raw address) as
  they require writing to read-only memory.

Reference: libretro/beetle-pce-fast-libretro#93
@inactive123 inactive123 merged commit 9228ae1 into libretro:master Sep 29, 2020
@negativeExponent negativeExponent deleted the cheats branch September 29, 2020 03:12
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2 participants