diff options
Diffstat (limited to 'src/devices/cpu/sm510/sm511core.cpp')
-rw-r--r-- | src/devices/cpu/sm510/sm511core.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/devices/cpu/sm510/sm511core.cpp b/src/devices/cpu/sm510/sm511core.cpp index d2e911b02dd..04f3cdfee24 100644 --- a/src/devices/cpu/sm510/sm511core.cpp +++ b/src/devices/cpu/sm510/sm511core.cpp @@ -3,6 +3,13 @@ /* Sharp SM511 MCU core implementation + + TODO: + - undocumented/guessed opcodes: + * $01 is guessed as DIV to ACC transfer, unknown which bits + * $5d is certainly CEND + * $65 is certainly divider reset, but not sure if it behaves same as on SM510 + * $6036 and $6037 may be instruction timing? (16kHz and 8kHz), mnemonics unknown */ @@ -12,8 +19,8 @@ // MCU types -DEFINE_DEVICE_TYPE(SM511, sm511_device, "sm511", "SM511") -DEFINE_DEVICE_TYPE(SM512, sm512_device, "sm512", "SM512") +DEFINE_DEVICE_TYPE(SM511, sm511_device, "sm511", "SM511") // 4Kx8 ROM, 128x4 RAM(32x4 for LCD), melody controller +DEFINE_DEVICE_TYPE(SM512, sm512_device, "sm512", "SM512") // 4Kx8 ROM, 128x4 RAM(48x4 for LCD), melody controller // internal memory maps |