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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;
/* QoS select latches */
reg QoSCSr;
reg QoSCSr, SndQoSCSr;
always @(posedge CLK) begin
QoSCSr <= !nRESin ||
(!nAS && SlowIACK && IACKCS) ||
(!nAS && SlowVIA && VIACS) ||
(!nAS && SlowIWM && IWMCS) ||
(!nAS && SlowSCC && SCCCS) ||
(!nAS && SlowSCSI && SCSICS) ||
(!nAS && SlowSnd && SndCSWR);
(BACT && SlowIACK && IACKCS) ||
(BACT && SlowVIA && VIACS) ||
(BACT && SlowIWM && IWMCS) ||
(BACT && SlowSCC && SCCCS) ||
(BACT && SlowSCSI && SCSICS) ||
(BACT && SlowSnd && SndCSWR);
end
always @(posedge CLK) SndQoSCSr <= BACT && SlowSnd && SndCSWR;
/* QoS timer
* In the absence of a QoS trigger, QS==0.
@ -90,6 +91,7 @@ module CNT(
reg [3:0] QS;
always @(posedge CLK) begin
if (QoSCSr) QS <= 15;
else if (SndQoSCSr) QS <= 15;
else if (QS==0) QS <= 0;
else if (TimerTick) QS <= QS-1;
end