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Differentiate sound and other I/O QoS selects in CNT

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This commit is contained in:
Zane Kaminski 2024-10-13 17:54:10 -04:00
parent 4cda4a77d5
commit d53ebd1ba5
1 changed files with 9 additions and 7 deletions
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16
cpld/CNT.v
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@ -71,16 +71,17 @@ module CNT(
always @(posedge CLK) TimerTick <= EFall && TimerTC; always @(posedge CLK) TimerTick <= EFall && TimerTC;
/* QoS select latches */ /* QoS select latches */
reg QoSCSr; reg QoSCSr, SndQoSCSr;
always @(posedge CLK) begin always @(posedge CLK) begin
QoSCSr <= !nRESin || QoSCSr <= !nRESin ||
(!nAS && SlowIACK && IACKCS) || (BACT && SlowIACK && IACKCS) ||
(!nAS && SlowVIA && VIACS) || (BACT && SlowVIA && VIACS) ||
(!nAS && SlowIWM && IWMCS) || (BACT && SlowIWM && IWMCS) ||
(!nAS && SlowSCC && SCCCS) || (BACT && SlowSCC && SCCCS) ||
(!nAS && SlowSCSI && SCSICS) || (BACT && SlowSCSI && SCSICS) ||
(!nAS && SlowSnd && SndCSWR); (BACT && SlowSnd && SndCSWR);
end end
always @(posedge CLK) SndQoSCSr <= BACT && SlowSnd && SndCSWR;
/* QoS timer /* QoS timer
* In the absence of a QoS trigger, QS==0. * In the absence of a QoS trigger, QS==0.
@ -90,6 +91,7 @@ module CNT(
reg [3:0] QS; reg [3:0] QS;
always @(posedge CLK) begin always @(posedge CLK) begin
if (QoSCSr) QS <= 15; if (QoSCSr) QS <= 15;
else if (SndQoSCSr) QS <= 15;
else if (QS==0) QS <= 0; else if (QS==0) QS <= 0;
else if (TimerTick) QS <= QS-1; else if (TimerTick) QS <= QS-1;
end end