SOUND ManualSound Driver Programmer's Guide
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Sound Driver Programmer's Guide / 7. System interface (work area)

System interface table (400H-43FH: 64B)


Address Size Size Data content explanation
0x25A00400 4B System Info. Table Pointer System Info. Table start address (440h)
0x25A00404 4B Host Interface Work Pointer Host Interface Work start address (700h)
0x25A00408 4B Sound Area Map CRNT Work Pointer Sound Area Map CRNT Work start address (500h)
0x25A0040C 4B Tool Interface Work Pointer Tool Interface Work start address (600h)
0x25A00410 1B DSP Program load flag bit7 = 0: no data
1: DSP program load complete
0x25A00411 1B reserved ---
0x25A00412 4B System Interface Work Pointer System Interface Work start address (480h)
0x25A00416 2B Sound Driver Error Status Sound Driver Error Status Bit Map
0x25A00418 2B Hard Check Status Area for storing Hard Check return status
0x25A0041A 2B Command history offset address Sound control command history (800h-FFFh) write pointer
0x25A0041C 4B reserved ---
0x25A00420 4B 68000 Error Status Bit Map Bitmap of Sound Driver, CPU instruction Error Status
0x25A00424 4B System Interface Work Pointer System Interface Work start address (412h copy: for SH)
0x25A00428 24B reserved ---


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SOUND ManualSound Driver Programmer's Guide
Copyright SEGA ENTERPRISES, LTD., 1997