SNDSB need to probe 0xD2, 0xD4 on PC-98 and 0x220, 0x240 on IBM PC
SNDSB need to probe 0xD2, 0xD4 on PC-98 and 0x220, 0x240 on IBM PC

joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib