17 lines
503 B
Plaintext
17 lines
503 B
Plaintext
(entry) ~ACIA ( Set RST 38 jump ) PC ORG @ 0x39 + !
|
|
AF PUSHqq,
|
|
HL PUSHqq,
|
|
DE PUSHqq,
|
|
( Read our character from ACIA into our BUFIDX )
|
|
ACIA_CTL INAn,
|
|
0x01 ANDn, ( is ACIA rcv buf full? )
|
|
IFNZ,
|
|
( correct interrupt cause )
|
|
( +2 == ACIAW> )
|
|
ACIA_MEM 2+ LDHL(nn),
|
|
( is it == to ACIAR>? )
|
|
( +0 == ACIAR> )
|
|
DE ACIA_MEM LDdd(nn),
|
|
( carry cleared from ANDn above )
|
|
DE SBCHLss, ( cont. )
|