Topic       : The ATARI Compendium
Author      : Scott Sanders / JAY Software
Version     : 1.25 (20/6/2003)
Subject     : Documentation
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Index Size  : 32614
HCP-Version : 6
Compiled on : Atari
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View Ref-FileDsp_HStat()                                                           XBIOS

Syntax

BYTE Dsp_Hstat( VOID )

Function      Dsp_HStat() returns the value of the DSP's ICR register.

Opcode        125 (0x7D)

Availability  Available only when bit #3 of the '_SND' cookie is set.

Binding       move.w   #$7D,-(sp)
              trap     #14
              addq.l   #2,sp

Return Value  Dsp_Hstat() returns an 8-bit value representing the current
              state of the DSP's ICR register as follows:

              Name      Bit   Meaning

              ICR_RXDF   0    ISR Receive data register full (RXDF)

              ICR_TXDE   1    ISR Transmit data register empty (TXDE)

              ICR_TRDY   2    ISR Transmitter ready (TRDY)

              ICR_HF2    3    ISR Host flag 2 (HF2)

              ICR_HF3    4    ISR Host flag 3 (HF3)

              -          5    Reserved

              ICR_DMA    6    ISR DMA Status (DMA)

              ICR_HREQ   7    ISR Host Request (HREQ)