summaryrefslogtreecommitdiffstatshomepage
diff options
context:
space:
mode:
author RobertoFresca <robbie@mamedev.org>2018-02-07 12:04:22 -0300
committer RobertoFresca <robbie@mamedev.org>2018-02-07 12:04:22 -0300
commit41669be0a189f95a29434117158cb756197959ad (patch)
tree12017111cbb927b08063316dc2d22e3843b07187
parentdebc8185b497ec41403d9109b1e7e5f12e644e38 (diff)
Magic Card II: Documented the modified
Mexican Rockwell R65C02 CPU.
-rw-r--r--src/mame/drivers/funworld.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/funworld.cpp b/src/mame/drivers/funworld.cpp
index 9b5d217bbd7..0b8d270d898 100644
--- a/src/mame/drivers/funworld.cpp
+++ b/src/mame/drivers/funworld.cpp
@@ -302,7 +302,7 @@
The game resolution seems to change 'on the fly' when entering the input test mode.
There aren't any writes to the m6845 registers to manage these changes.
- Regarding the CPU, it seems to be a custom one, or a daughterboard with a 65c02 + PLDs/TTLs.
+ Regarding the CPU, it's a Mexican Rockwell R65C02 with some mods respect the regular/stock 65C02.
Some CPU instructions seems to be changed. The following piece of code at $C1A8 is very clear:
C1A8: A0 00 ldy #$00 ; clear Y register to use as counter.