mirror of
https://github.com/rodamaral/lsnes.git
synced 2025-04-02 10:42:15 -04:00
19 lines
262 B
Text
19 lines
262 B
Text
waits for ly 141
|
|
enables lycint
|
|
sets lyc to 143
|
|
enables m1 int
|
|
d=2
|
|
interrupt enable
|
|
|
|
on lycint:
|
|
dec d
|
|
if nz jr 1
|
|
ret
|
|
jump to 0x1000
|
|
ei
|
|
does a bunch of nops
|
|
reads IF
|
|
outputs value of IF&3
|
|
|
|
lycint_m1intirq_1.gb should output 3
|
|
lycint_m1intirq_2.gb should output 1
|