vanfanel wrote on 2024-02-15, 17:42:

Hello! […]
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Hello!

I have a MiniPC with Celeron N3350, on which SBEMU is almost working... but shows a very strange error:

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1Sound card: Intel HDA
2Invalid Sound Card IRQ: 25, Trying to assign a valid IRQ...
3Failed to assign a valid IRQ for sound card, abort.

With sbemu /SCL it's listed like:

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1Intel HDA: Intel SKL (Broxton-P) (80865A98) -> Unknown (00000000) 

Is it supposed to be working? Is there something else I can try?

I already disabled everything I could (network, misc PCI devices etc..) on the BIOS, to free up IRQs, but made no difference.

It seems to be the same problem that @zyzzle is having!
Did you get it working, @zyzzle?

Which user build are you using? Only user builds after Feb 5th supports irq > 15 I believe.

Update; just checked main.c; seems it's not implemented yet:

if(aui.card_irq > 15) //UEFI with CSM may have APIC enabled (16-31) - but we need read APIC, not implemented for now.

veelstekel wrote on 2024-02-16, 07:51:

Which user build are you using? Only user builds after Feb 5th supports irq > 15 I believe. […]
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vanfanel wrote on 2024-02-15, 17:42:

Hello! […]
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Hello!

I have a MiniPC with Celeron N3350, on which SBEMU is almost working... but shows a very strange error:

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1Sound card: Intel HDA
2Invalid Sound Card IRQ: 25, Trying to assign a valid IRQ...
3Failed to assign a valid IRQ for sound card, abort.

With sbemu /SCL it's listed like:

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1Intel HDA: Intel SKL (Broxton-P) (80865A98) -> Unknown (00000000) 

Is it supposed to be working? Is there something else I can try?

I already disabled everything I could (network, misc PCI devices etc..) on the BIOS, to free up IRQs, but made no difference.

It seems to be the same problem that @zyzzle is having!
Did you get it working, @zyzzle?

Which user build are you using? Only user builds after Feb 5th supports irq > 15 I believe.

Update; just checked main.c; seems it's not implemented yet:

if(aui.card_irq > 15) //UEFI with CSM may have APIC enabled (16-31) - but we need read APIC, not implemented for now.

I'm using latest user build, but it's missing IRQ > 15 support for now. I will wait and see 😀

There was a version of SBEMU which did enable IRQ > 15. I believe it was the 5 Feb. 2024 version. I have the same chipset and CPU as vanfanel (Apollolake with Celeron N3350 and Broxton Intel HDA). However, on the 5th Feb SBEMU, it appeared to work (ie, did detect IRQ 25 as being valid), yet still complete silence and even with proper SET BLASTER= environment setting aligning with SBEMU settings, no programs (real or protected mode) detected the "valid" SBEMU configured settings.

crazii commented above "The problem should still be your IRQ number. HDPMI doesn't handle IRQ number above 15, and SBEMU programs on legacy 2 cascade PICs which only have 16 bit masks. and also for IRQ above 15, the entry in interrupt vector table is unknown." and provided an alternate "real mode PCI BIOS" version of SBEMU, which still did not work on this system. It said "Failed to assign a Valid IRQ, aborted".

crazii again commented "On a modern PC, this PCI BIOS function may not bother to do the implementation at all (VirtualBox doesn't implemented it) and another issue on github also causes freeze. A good PCI BIOS implementation should reprogram APIC to get it routed to the right IRQ."

So, I don't know if it's possible to get it working, as it seems APIC is not routing to correct IRQ.

It's frustrating. I'm not sure if there's another way to convince APIC to get the right IRQ. Any further comments or insight is most welcomed.

@vanfanel, please try the 5.Feb version and report back if successful.

Perhaps a stupid suggestion, but what if you install Windows 98; and assign an IRQ < 15 to the sound card in device management.
After that return to dos: https://groups.google.com/g/alt.msdos.batch/c/ZEXNzVUcHYw

Would that work?

zyzzle wrote on 2024-02-16, 12:55:

It's frustrating. I'm not sure if there's another way to convince APIC to get the right IRQ. Any further comments or insight is most welcomed.

This problem almost certainly can be solved - the simplest approach probably by not using the sound hardware's IRQ at all, and instead using another timer device.

I'm also interested in your APIC configuration. Could you run the APICinfo tool found at https://github.com/Baron-von-Riedesel/APICtools and display its results? No guarantee that it works on your machine, but worth a try.

Baron von Riedesel wrote on 2024-02-16, 14:04:

This problem almost certainly can be solved - the simplest approach probably by not using the sound hardware's IRQ at all, and instead using another timer device.

I'm also interested in your APIC configuration. Could you run the APICinfo tool found at https://github.com/Baron-von-Riedesel/APICtools and display its results? No guarantee that it works on your machine, but worth a try.

Yes, of course. This is what APICInfo says:

1Scanning SDTs...
2RSDT/XSDT header at 795e50c0
3Table Signature: XSDT
4Table length: dc
5Entries: 23
6MADT at 795ef230, sig=APIC, length=132
7
8APIC base address: fee00000
9APICID=0
10APICVersion=1060014
11Task Priority Register=0
12Destination Format Register=ffffffff
13Spurious Interrupt Vector Register=10f (APIC enabled)
14Interrupt Command Register Low=200
15Interrupt Command Register High=f000000
16Timer Local Vector Table Entry=10000 (masked) 
17Thermal Local Vector Table Entry=10000 (masked) 
18Performance Counter Local Vector Table Entry=10000 (masked) 
19Local Interrupt 0 Vector Table Entry=700 extINT 
20Local Interrupt 1 Vector Table Entry=400 NMI 
21Error Vector Table Entry=10000 (masked) 
22Timer Initial Count Register=0
23Timer Current Count Register=0
24Timer Divide Config Register=0
25Extended APIC Feature Register=0
26Extended APIC Control Register=0
27
28MADT (length=132, LAPIC=fee00000, flags=1):
29legacy PICs installed
30Type 0: Processor LAPIC, ACPI Processor ID=1 APIC ID=0 flags=1
31Type 0: Processor LAPIC, ACPI Processor ID=2 APIC ID=2 flags=0
32Type 0: Processor LAPIC, ACPI Processor ID=3 APIC ID=4 flags=1
33Type 0: Processor LAPIC, ACPI Processor ID=4 APIC ID=6 flags=0
34Type 1: IOAPIC, ID=1 address=fec00000 GblSysIntBase=0
35Type 2: IOAPIC Interrupt Source Override, Bus Src=0 Irq Src=0 GblSysInt=2 flags=0
36Type 2: IOAPIC Interrupt Source Override, Bus Src=0 Irq Src=9 GblSysInt=9 flags=f
37Type 4: LAPIC NMI, ACPI Processor ID=1 flags=d LINT=1
38Type 4: LAPIC NMI, ACPI Processor ID=2 flags=d LINT=1
39Type 4: LAPIC NMI, ACPI Processor ID=3 flags=d LINT=1
40Type 4: LAPIC NMI, ACPI Processor ID=4 flags=d LINT=1
41
42IOAPIC fec00000
43 0 IOAPICID=1000000
44 1 IOAPICVER=770020
45 2 IOAPICARB=0
4616 IOREDTBL=f7ff0000.10fff
4718 IOREDTBL=335b0000.10c2e
4820 IOREDTBL=fdff0000.10df5
4922 IOREDTBL=b77f0000.10bf7
5024 IOREDTBL=ff7f0000.10df6
5126 IOREDTBL=fd7f0000.10ffe
5228 IOREDTBL=77ff0000.10fcd
5330 IOREDTBL=aff10000.109ff
5432 IOREDTBL=feef0000.10ef8
5534 IOREDTBL=ff7f0000.10fbf
5636 IOREDTBL=7fff0000.107ef
5738 IOREDTBL=ff7b0000.10fcf
5840 IOREDTBL=ff8d0000.10fff
5942 IOREDTBL=f9f70000.10fff
6044 IOREDTBL=f5bf0000.10df7

6146 IOREDTBL=fffd0000.10ff7
6248 IOREDTBL=df9f0000.10ffd
6350 IOREDTBL=7a2f0000.10b4b
6452 IOREDTBL=7f3e0000.10fef
6554 IOREDTBL=bfff0000.10bf7
6656 IOREDTBL=fbfb0000.10ebf
6758 IOREDTBL=efff0000.10fb6
6860 IOREDTBL=feaf0000.10bff
6962 IOREDTBL=3d7e0000.10fff
7064 IOREDTBL=cf1f0000.10d73
7166 IOREDTBL=ef970000.10fff
7268 IOREDTBL=eb6d0000.10d7f
7370 IOREDTBL=febf0000.10fff
7472 IOREDTBL=f7ff0000.10cef
7574 IOREDTBL=aff70000.10e7f
7676 IOREDTBL=fdfe0000.10dce
7778 IOREDTBL=1f3e0000.10ef7
7880 IOREDTBL=7fff0000.10fbf
7982 IOREDTBL=7ddb0000.10fdd
8084 IOREDTBL=b7ef0000.10fff
8186 IOREDTBL=77fa0000.10ec2
8288 IOREDTBL=f5bf0000.10e5e
8390 IOREDTBL=defb0000.10ffd
8492 IOREDTBL=ffff0000.10fff
8594 IOREDTBL=fd330000.10dfd
8696 IOREDTBL=4ddf0000.10ded
8798 IOREDTBL=f76f0000.10dff
88100 IOREDTBL=fffb0000.10ff7
89102 IOREDTBL=fffe0000.10feb
90104 IOREDTBL=ef9e0000.10beb
91106 IOREDTBL=7dff0000.10dcb
92108 IOREDTBL=bffd0000.10ff7
93110 IOREDTBL=bffb0000.10f7f
94112 IOREDTBL=ff720000.10fdf
95114 IOREDTBL=74bc0000.10eff
96116 IOREDTBL=ffff0000.10e5f
97118 IOREDTBL=ffff0000.10eff
98120 IOREDTBL=fffe0000.1099f
99122 IOREDTBL=bdff0000.10dfd
100124 IOREDTBL=d77a0000.10fff
101126 IOREDTBL=ff3e0000.10fbf
102128 IOREDTBL=afff0000.107ef
103130 IOREDTBL=f52f0000.1017e
104132 IOREDTBL=ffdf0000.10e7f
105134 IOREDTBL=ffdf0000.10c3e
106136 IOREDTBL=ff9f0000.107ba
107138 IOREDTBL=fbd80000.10fed
108140 IOREDTBL=efff0000.10ded
109142 IOREDTBL=ffbf0000.10bff
110144 IOREDTBL=bbd70000.10efe
111146 IOREDTBL=ffff0000.10fef
112148 IOREDTBL=dffe0000.10fe7
113150 IOREDTBL=dfbd0000.107ff
114152 IOREDTBL=f5bf0000.10afe
115154 IOREDTBL=a7af0000.10de5
116156 IOREDTBL=fcff0000.10bff
117158 IOREDTBL=bfad0000.1067f
118160 IOREDTBL=acdb0000.10dff
119162 IOREDTBL=dfcd0000.10f7b
120164 IOREDTBL=efff0000.10c7f
121166 IOREDTBL=ed7b0000.10fbf
122168 IOREDTBL=ef4f0000.10dee
123170 IOREDTBL=ffff0000.10ffd
124172 IOREDTBL=ffff0000.107d2
125174 IOREDTBL=fedf0000.109ff
126176 IOREDTBL=ff1d0000.10ec5
127178 IOREDTBL=3ffe0000.10cff
128180 IOREDTBL=5ffa0000.10fef
129182 IOREDTBL=ffff0000.1056f
130184 IOREDTBL=6ff60000.107ff
131186 IOREDTBL=fbfb0000.107ef
132188 IOREDTBL=fefa0000.10f7d
133190 IOREDTBL=faf50000.10ffe
134192 IOREDTBL=aeff0000.10bfe
135194 IOREDTBL=dffe0000.10f9f
136196 IOREDTBL=dfe70000.10bdf
137198 IOREDTBL=fafe0000.10bef
138200 IOREDTBL=f57f0000.10fff
139202 IOREDTBL=7dff0000.10fff
140204 IOREDTBL=bbcf0000.10afc
141206 IOREDTBL=fcf50000.10f9d
142208 IOREDTBL=ff9f0000.107f7
143210 IOREDTBL=fffd0000.10fef
144212 IOREDTBL=cff20000.10fff
145214 IOREDTBL=fa7d0000.10eeb
146216 IOREDTBL=7bbd0000.107fe
147218 IOREDTBL=ffbf0000.107ff
148220 IOREDTBL=ffff0000.10fdb
149222 IOREDTBL=dbfb0000.10f7d
150224 IOREDTBL=fcff0000.1075f
151226 IOREDTBL=a6fd0000.107cd
152228 IOREDTBL=f3ff0000.10ff5
153230 IOREDTBL=ffff0000.10dfb
154232 IOREDTBL=bdbd0000.10fef
155234 IOREDTBL=f5fb0000.10fde
156236 IOREDTBL=7feb0000.10ef7
157238 IOREDTBL=ffff0000.10ffd
158240 IOREDTBL=effd0000.10ff5
159242 IOREDTBL=ffdf0000.10fec
160244 IOREDTBL=b0de0000.10fff
161246 IOREDTBL=ef360000.10f7f
162248 IOREDTBL=fa7e0000.10f3f
163250 IOREDTBL=ff7a0000.10fff
164252 IOREDTBL=bb6f0000.10fff
165254 IOREDTBL=fefb0000.10dd7

@zyzzle: I tried 5.Feb version and I got IRQ 7, but then no audio... same as you 🙁

Nice to have some APIC tools, just for comparison I post the log on my intel P67 system with working SBEMU and legacy interrupts. I never tried any APIC programming, I just know it's memory mapped device described by some intel spec...
BTW I need to run with HDPMI32, with CWSDPMI it didn't work (reported only few lines and complained about unmapping failed)

APICINFO.LOG:

APICTMR.LOG:
APIC base address register (MSR 1Bh): 0fee00900
APIC enabled
Timer LVTE=30080
press ESC to exit...
(text bar was moving)

Thanks for the feedback ( although I actually questioned zyzzle 😀 )

There's nothing wrong with the APIC status.
In case you cannot interpret the data, the summary is:
- the legacy PICs exist in the machine
- APIC runs in so-called "virtual wire mode" ( can be concluded by line "Local Interrupt 0 Vector Table Entry=700 extINT"; INT vectors are supplied by PIC )
- IOAPIC is "inactive" ( no redirection entries active , all entries "masked" ( bit 16 of IOREDTBL entries is 1 )

That's the very standard for a PC-AT compatible setting on "modern" machines, resulting in just the 15 IRQ lines supplied by the legacy PICs - APIC doesn't get in the way in the least.

I should try the problem child toshiba with the latest build again. I think I will when I go home today.

Baron von Riedesel wrote on 2024-02-17, 08:23:

Thanks for the feedback ( although I actually questioned zyzzle 😀 )

My sincere apologies for not replying sooner!

This is what APICINFO says when run under HDPMI32i:

1Scanning SDTs...
2RSDT/XSDT header at 79323188
3Table Signature: XSDT
4Table length: f4
5Entries: 26
6MADT at 7933a000, sig=APIC, length=132
7
8APIC base address: fee00000
9APICID=0
10APICVersion=1060014
11Task Priority Register=0
12Destination Format Register=ffffffff
13Spurious Interrupt Vector Register=10f (APIC enabled)
14Interrupt Command Register Low=200
15Interrupt Command Register High=f000000
16Timer Local Vector Table Entry=20005 fixed 
17Thermal Local Vector Table Entry=10000 (masked) 
18Performance Counter Local Vector Table Entry=10000 (masked) 
19Local Interrupt 0 Vector Table Entry=700 extINT 
20Local Interrupt 1 Vector Table Entry=400 NMI 
21Error Vector Table Entry=10000 (masked) 
22Timer Initial Count Register=ffffffff
23Timer Current Count Register=57506256
24Timer Divide Config Register=0
25Extended APIC Feature Register=0
26Extended APIC Control Register=0
27
28MADT (length=132, LAPIC=fee00000, flags=1):
29legacy PICs installed
30Type 0: Processor LAPIC, ACPI Processor ID=1 APIC ID=0 flags=1
31Type 0: Processor LAPIC, ACPI Processor ID=2 APIC ID=2 flags=0
32Type 0: Processor LAPIC, ACPI Processor ID=3 APIC ID=4 flags=1
33Type 0: Processor LAPIC, ACPI Processor ID=4 APIC ID=6 flags=0
34Type 1: IOAPIC, ID=1 address=fec00000 GblSysIntBase=0
35Type 2: IOAPIC Interrupt Source Override, Bus Src=0 Irq Src=0 GblSysInt=2 flags=0
36Type 2: IOAPIC Interrupt Source Override, Bus Src=0 Irq Src=9 GblSysInt=9 flags=f
37Type 4: LAPIC NMI, ACPI Processor ID=1 flags=d LINT=1
38Type 4: LAPIC NMI, ACPI Processor ID=2 flags=d LINT=1
39Type 4: LAPIC NMI, ACPI Processor ID=3 flags=d LINT=1
40Type 4: LAPIC NMI, ACPI Processor ID=4 flags=d LINT=1
41
42IOAPIC fec00000
43 0 IOAPICID=1000000
44 1 IOAPICVER=770020
45 2 IOAPICARB=0
4616 IOREDTBL=a7df0000.10fc3
4718 IOREDTBL=ffff0000.10e3e
4820 IOREDTBL=f7fc0000.10fb7
4922 IOREDTBL=bffe0000.10fbb
5024 IOREDTBL=dffa0000.10fe3
5126 IOREDTBL=f7fe0000.105ff
5228 IOREDTBL=e6fd0000.10bff
5330 IOREDTBL=5edf0000.10d1f
5432 IOREDTBL=fdf70000.10d7f
5534 IOREDTBL=deff0000.10f77
5636 IOREDTBL=daef0000.10ffd
5738 IOREDTBL=ffff0000.10aef
5840 IOREDTBL=ffbf0000.10ff9
5942 IOREDTBL=ffe70000.10cb9
6044 IOREDTBL=fdff0000.10eff

6146 IOREDTBL=7f3f0000.10fda
6248 IOREDTBL=effb0000.101ff
6350 IOREDTBL=fffb0000.10ffd
6452 IOREDTBL=fddd0000.10afe
6554 IOREDTBL=7fff0000.10f5f
6656 IOREDTBL=4fff0000.10dff
6758 IOREDTBL=6ffb0000.10fff
6860 IOREDTBL=fef90000.10dff
6962 IOREDTBL=7fff0000.10fff
7064 IOREDTBL=f7f40000.105be
7166 IOREDTBL=e5ef0000.10ffe
7268 IOREDTBL=2fff0000.10eef
7370 IOREDTBL=ebf0000.10ffb
7472 IOREDTBL=ffff0000.10ff7
7574 IOREDTBL=ddf70000.10f5d
7676 IOREDTBL=3fef0000.10f2f
7778 IOREDTBL=fee70000.10bff
7880 IOREDTBL=bffe0000.10ffc
7982 IOREDTBL=775f0000.10fff
8084 IOREDTBL=9fff0000.10aff
8186 IOREDTBL=df7f0000.10cbb
8288 IOREDTBL=3ffb0000.10df9
8390 IOREDTBL=7d7f0000.106bc
8492 IOREDTBL=fef90000.10f3f
8594 IOREDTBL=7bd60000.10b3d
8696 IOREDTBL=7f7e0000.107b9
8798 IOREDTBL=fd7f0000.10ede
88100 IOREDTBL=fbdf0000.10efe
89102 IOREDTBL=afbf0000.10f7f
90104 IOREDTBL=affd0000.10fbf
91106 IOREDTBL=ffbf0000.10f3c
92108 IOREDTBL=fffd0000.103ff
93110 IOREDTBL=a67f0000.10f6d
94112 IOREDTBL=afdb0000.107f3
95114 IOREDTBL=bdfe0000.10ff5
96116 IOREDTBL=adf70000.10ff7
97118 IOREDTBL=ffff0000.10ceb
98120 IOREDTBL=6fa40000.10f7a
99122 IOREDTBL=ffff0000.10763
100124 IOREDTBL=effb0000.105fe
101126 IOREDTBL=fdff0000.108fb
102128 IOREDTBL=133f0000.10f9d
103130 IOREDTBL=b35d0000.10bdc
104132 IOREDTBL=deff0000.10ff2
105134 IOREDTBL=e76d0000.10fff
106136 IOREDTBL=1fff0000.10fdf
107138 IOREDTBL=757d0000.10bfb
108140 IOREDTBL=febf0000.10ffe
109142 IOREDTBL=ad570000.10ffb
110144 IOREDTBL=fdff0000.109fa
111146 IOREDTBL=5efe0000.10fef
112148 IOREDTBL=dfdf0000.10f87
113150 IOREDTBL=bdf70000.10ebb
114152 IOREDTBL=ff6f0000.10fd7
115154 IOREDTBL=e7fd0000.107dd
116156 IOREDTBL=fffe0000.109ff
117158 IOREDTBL=5dff0000.10df4
118160 IOREDTBL=ddd70000.10fbb
119162 IOREDTBL=fefd0000.10ffb
120164 IOREDTBL=f67c0000.105ff
121166 IOREDTBL=f7ad0000.107fc
122168 IOREDTBL=be9b0000.10fee
123170 IOREDTBL=e1ef0000.107ef
124172 IOREDTBL=bfff0000.107fe
125174 IOREDTBL=bdff0000.10f8f
126176 IOREDTBL=aff70000.10fdf
127178 IOREDTBL=97ff0000.10bcd
128180 IOREDTBL=3f7d0000.10ff7
129182 IOREDTBL=77cd0000.10fff
130184 IOREDTBL=f7fd0000.10fff
131186 IOREDTBL=5fdf0000.10ff7
132188 IOREDTBL=db7d0000.10ffb
133190 IOREDTBL=fffc0000.10fff
134192 IOREDTBL=cb7f0000.10eff
135194 IOREDTBL=ebd90000.10fd7
136196 IOREDTBL=ffdd0000.10ffb
137198 IOREDTBL=f5af0000.106ef
138200 IOREDTBL=d6fb0000.10ddb
139202 IOREDTBL=feff0000.10fbf
140204 IOREDTBL=fffb0000.107d7
141206 IOREDTBL=efdf0000.10ef7
142208 IOREDTBL=abff0000.106ef
143210 IOREDTBL=dfdf0000.10f6d
144212 IOREDTBL=befd0000.10ffe
145214 IOREDTBL=ff6e0000.10f7f
146216 IOREDTBL=bffd0000.10fc7
147218 IOREDTBL=5fa70000.10bff
148220 IOREDTBL=f7bb0000.10f7f
149222 IOREDTBL=feef0000.105ff
150224 IOREDTBL=fbff0000.10f1d
151226 IOREDTBL=ffdf0000.10ff5
152228 IOREDTBL=fbff0000.10fef
153230 IOREDTBL=fffd0000.10ffb
154232 IOREDTBL=f9fe0000.10ff9
155234 IOREDTBL=7bbb0000.106df
156236 IOREDTBL=ffff0000.1077d
157238 IOREDTBL=ffff0000.10def
158240 IOREDTBL=dbfb0000.10f9f
159242 IOREDTBL=c7ff0000.10fef
160244 IOREDTBL=9ffd0000.107df
161246 IOREDTBL=f7e50000.109ff
162248 IOREDTBL=fffd0000.10fff
163250 IOREDTBL=ff3d0000.10eed
164252 IOREDTBL=fafa0000.10b3f
165254 IOREDTBL=95bf0000.10ebf

This is what your APICTIMER.EXE says:

1APIC base address register (MSR 1Bh): 0fee00900
2APIC enabled
3APIC timer already in use

I hope the above might be diagnostic for my system somehow... in solving the mysteries of the silent SBEMU and VSBHDA on my laptop with IRQ25 Intel HDA...

> My sincere apologies for not replying sooner!

No Problem.

The only issue I can see in your report is that the LAPIC timer is demasked. It's routed to INT 5, which is odd, because it "should" be >= 0x10 to work. So it's "activated", but almost certainly dysfunctional with those settings.

However, that's surely not related to the "invalid" sound IRQ. That might be an error in an ACPI table ( the DSDT, IIRC ).

Baron von Riedesel wrote on 2024-02-21, 07:34:

The only issue I can see in your report is that the LAPIC timer is demasked. It's routed to INT 5, which is odd, because it "should" be >= 0x10 to work. So it's "activated", but almost certainly dysfunctional with those settings.

However, that's surely not related to the "invalid" sound IRQ. That might be an error in an ACPI table ( the DSDT, IIRC ).

Probably it's "impossible" to change APIC timer from interrupt 5 to another INT which is >=16. So, this is down to a problematic / incorrect BIOS code, wherby the "masking" is LAPIC timer is not functioning correctly.

Still don't see how APIC timer relates to assigning an IRQ for emulated Intel HDA Sound Blaster. Bottom line is it seems my BIOS somehow has an incorrect ACPI table. But, I don't think it's possible to dynamically alter the ACPI table under DOS, is it?

vanfanel had same problem above (IRQ 25 reported) for the Intel HDA sound. Is the provided APIC info beneath that post also showing the same "demasking" where INT5 (or one < 0x10) is being used instead of the "proper" interrupt? Very strange and mysterious problem / incompatible BIOS in these two systems.

zyzzle wrote on 2024-02-22, 03:08:

Probably it's "impossible" to change APIC timer from interrupt 5 to another INT which is >=16. So, this is down to a problematic / incorrect BIOS code, wherby the "masking" is LAPIC timer is not functioning correctly.

No, this is a pure software thing, this LAPIC registers surely can be altered.

Still don't see how APIC timer relates to assigning an IRQ for emulated Intel HDA Sound Blaster.

It's not related. I just mentioned it because it was the only oddity in your report.

vanfanel had same problem above (IRQ 25 reported) for the Intel HDA sound. Is the provided APIC info beneath that post also showing the same "demasking" where INT5 (or one < 0x10)

No, the line in your post is:
"Timer Local Vector Table Entry=20005 fixed "
while in his report there's
"Timer Local Vector Table Entry=10000 (masked) "
which is the usuall setup.

Perhaps we should still try to simply change the interrupt line/pin in the HDA's PCI config space. After all, the HDA device in your machine is an (internal) PCI express device, so the whole interrupt thing is something that is "emulated". It might help to modify both the "interrupt line" and the "interrupt pin" in the config space.

Media coverage: https://youtu.be/K6-AlpCEqpc

thp wrote on 2024-03-23, 08:35:

Media coverage: https://youtu.be/K6-AlpCEqpc

Mine was actually before :p (much less relevant yt channel)

https://youtu.be/UX9HhDrsq3k?si=Moxiv-2okEqlT_qA

It has English subs

dontbugster wrote on 2024-03-24, 15:23:

Mine was actually before :p (much less relevant yt channel) […]
Show full quote

thp wrote on 2024-03-23, 08:35:

Media coverage: https://youtu.be/K6-AlpCEqpc

Mine was actually before :p (much less relevant yt channel)

https://youtu.be/UX9HhDrsq3k?si=Moxiv-2okEqlT_qA

It has English subs

Thanks, dontbugster. I'm doing Duolingo Spanish course and you video is a good reason for language immersion 😁

Reports list updated.

Bondi wrote on 2024-03-24, 15:39:

dontbugster wrote on 2024-03-24, 15:23:

Mine was actually before :p (much less relevant yt channel) […]
Show full quote

thp wrote on 2024-03-23, 08:35:

Media coverage: https://youtu.be/K6-AlpCEqpc

Mine was actually before :p (much less relevant yt channel)

https://youtu.be/UX9HhDrsq3k?si=Moxiv-2okEqlT_qA

It has English subs

Thanks, dontbugster. I'm doing Duolingo Spanish course and you video is a good reason for language immersion 😁

Nice!
hehe I hope I had good pronunciation. It's hard sometimes to play and talk at the same time.

Anyway, SBemu is better and better on each release and a real game changer.

It HAS really improved.

Now all I need is a cpu speed adjustment program for doublemild weaksauce E series mobile amd cpus, and i'll have a Retroplay laptop that works right!

Bruno128 wrote on 2024-03-24, 22:01:

Reports list updated.

Where can I see this list of reports?