Files
open-roms/c64/kernal/iec_set_idle.s
T

8 lines
183 B
ArmAsm

iec_set_idle:
lda CIA2_PRA
ora #BIT_CIA2_PRA_CLK_OUT ; pull
and #$FF - BIT_CIA2_PRA_DAT_OUT - BIT_CIA2_PRA_ATN_OUT ; release
sta CIA2_PRA
rts