Macros starting with `d' in arch/i386/isa

• Debugger arch/i386/isa/aha1542.c:134
• disable_intr arch/i386/isa/npx.c:60
• DMA1_CHN arch/i386/isa/isa.c:75
• DMA2_CHN arch/i386/isa/isa.c:83
• dtoi arch/i386/isa/spkr.c:117