RISC OS Open: Forum: GraphicsV 11 receiving 256 entries for 1/2/4bpp modes

Nov 8, 2016 8:32pm

Jon Abbott (1421) 2651 posts

When in 2, 4 and 16 palette modes, GraphicsV 11 is receiving a 256 entry palette list when RISCOS swaps between the first and second colours. Should the GraphicsV 11 call not match the number of palette entries in the current mode?

I’m also seeing RISCOS attempting to flash colours in 256 colour modes. Do 256 colour modes support flashing colours, or is the flashing palette code always active, regardless of the mode bpp?

Jun 3, 2018 9:45am

Jon Abbott (1421) 2651 posts

Some other odd behaviour I’ve noticed, with register dumps on entry to GraphicsV:

A 256 entry palette change is issued when you press F12 at a 16M colour desktop:

r0  = &00000000 : .... :          0
r1  = &300F3068 : h0.0 :  806301800 => &00000000 : .... : 0
r2  = &00000000 : .... :          0
r3  = &00000100 : .... :        256
r4  = &0000000B : .... :         11
r5  = &20284018 : .@(  :  539508760 => &67800000 : ..€g : 1736441856
r6  = &0000006D : m... :        109
r7  = &FFFFFF4C : L... : 4294967116
r8  = &00000788 : ˆ... :       1928
r9  = &00000023 : #... :         35

On return to the desktop all 256 palette entries are set twice to their entry number as the RGB value (ie FB is set to FBFBFB00), the border is set four times, the cursor palette is set twice and another 256 entry palette is issued. The final 256 entry palette change is issued using two different array pointers:

...
r0  = &00000000 : .... :          0
r1  = &FDFDFD00 : .ýýý : 4261281024
r2  = &000000FD : ý... :        253
r3  = &FDFDFD00 : .ýýý : 4261281024
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &FDFDFD00 : .ýýý : 4261281024
r7  = &80808000 : .€€€ : 2155905024
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000000 : .... :          0
r1  = &FDFDFD00 : .ýýý : 4261281024
r2  = &000000FD : ý... :        253
r3  = &FDFDFD00 : .ýýý : 4261281024
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &FDFDFD00 : .ýýý : 4261281024
r7  = &80808000 : .€€€ : 2155905024
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000000 : .... :          0
r1  = &FEFEFE00 : .... : 4278124032
r2  = &000000FE : .... :        254
r3  = &FEFEFE00 : .... : 4278124032
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &FEFEFE00 : .... : 4278124032
r7  = &80808000 : .€€€ : 2155905024
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000000 : .... :          0
r1  = &FEFEFE00 : .... : 4278124032
r2  = &000000FE : .... :        254
r3  = &FEFEFE00 : .... : 4278124032
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &FEFEFE00 : .... : 4278124032
r7  = &80808000 : .€€€ : 2155905024
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000000 : .... :          0
r1  = &FFFFFF00 : .... : 4294967040
r2  = &000000FF : .... :        255
r3  = &FFFFFF00 : .... : 4294967040
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &FFFFFF00 : .... : 4294967040
r7  = &80808000 : .€€€ : 2155905024
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000000 : .... :          0
r1  = &FFFFFF00 : .... : 4294967040
r2  = &000000FF : .... :        255
r3  = &FFFFFF00 : .... : 4294967040
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &FFFFFF00 : .... : 4294967040
r7  = &80808000 : .€€€ : 2155905024
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000001 : .... :          1
r1  = &00000000 : .... :          0
r2  = &00000000 : .... :          0
r3  = &00000000 : .... :          0
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &00000000 : .... :          0
r7  = &80808000 : .€€€ : 2155905024
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000001 : .... :          1
r1  = &00000000 : .... :          0
r2  = &00000000 : .... :          0
r3  = &00000000 : .... :          0
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &00000000 : .... :          0
r7  = &80808000 : .€€€ : 2155905024
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000001 : .... :          1
r1  = &00000000 : .... :          0
r2  = &00000000 : .... :          0
r3  = &00000000 : .... :          0
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &00000000 : .... :          0
r7  = &00000000 : .... :          0
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000001 : .... :          1
r1  = &00000000 : .... :          0
r2  = &00000000 : .... :          0
r3  = &00000000 : .... :          0
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &00000000 : .... :          0
r7  = &00000000 : .... :          0
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000002 : .... :          2
r1  = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176
r2  = &00000001 : .... :          1
r3  = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176
r7  = &00000000 : .... :          0
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000002 : .... :          2
r1  = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176
r2  = &00000001 : .... :          1
r3  = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176
r7  = &00000000 : .... :          0
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000002 : .... :          2
r1  = &99000000 : ...™ : 2566914048
r2  = &00000002 : .... :          2
r3  = &99000000 : ...™ : 2566914048
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &99000000 : ...™ : 2566914048
r7  = &00000000 : .... :          0
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000002 : .... :          2
r1  = &99000000 : ...™ : 2566914048
r2  = &00000002 : .... :          2
r3  = &99000000 : ...™ : 2566914048
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &99000000 : ...™ : 2566914048
r7  = &00000000 : .... :          0
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000002 : .... :          2
r1  = &0000FF00 : .... :      65280 => &E5991010 : ..™å : 3852013584
r2  = &00000003 : .... :          3
r3  = &0000FF00 : .... :      65280 => &E5991010 : ..™å : 3852013584
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &0000FF00 : .... :      65280 => &E5991010 : ..™å : 3852013584
r7  = &00000000 : .... :          0
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000002 : .... :          2
r1  = &0000FF00 : .... :      65280 => &E5991010 : ..™å : 3852013584
r2  = &00000003 : .... :          3
r3  = &0000FF00 : .... :      65280 => &E5991010 : ..™å : 3852013584
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &0000FF00 : .... :      65280 => &E5991010 : ..™å : 3852013584
r7  = &00000000 : .... :          0
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Pointer
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000002 : .... :          2
r1  = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176
r2  = &00000001 : .... :          1
r3  = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176
r7  = &00000000 : .... :          0
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000002 : .... :          2
r1  = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176
r2  = &00000001 : .... :          1
r3  = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176
r7  = &00000000 : .... :          0
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000002 : .... :          2
r1  = &99000000 : ...™ : 2566914048
r2  = &00000002 : .... :          2
r3  = &99000000 : ...™ : 2566914048
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &99000000 : ...™ : 2566914048
r7  = &00000000 : .... :          0
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000002 : .... :          2
r1  = &99000000 : ...™ : 2566914048
r2  = &00000002 : .... :          2
r3  = &99000000 : ...™ : 2566914048
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &99000000 : ...™ : 2566914048
r7  = &00000000 : .... :          0
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000002 : .... :          2
r1  = &0000FF00 : .... :      65280 => &E5991010 : ..™å : 3852013584
r2  = &00000003 : .... :          3
r3  = &0000FF00 : .... :      65280 => &E5991010 : ..™å : 3852013584
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &0000FF00 : .... :      65280 => &E5991010 : ..™å : 3852013584
r7  = &00000000 : .... :          0
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.78 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000002 : .... :          2
r1  = &0000FF00 : .... :      65280 => &E5991010 : ..™å : 3852013584
r2  = &00000003 : .... :          3
r3  = &0000FF00 : .... :      65280 => &E5991010 : ..™å : 3852013584
r4  = &0000000A : .... :         10
r5  = &00000000 : .... :          0
r6  = &0000FF00 : .... :      65280 => &E5991010 : ..™å : 3852013584
r7  = &00000000 : .... :          0
r8  = &300F3B88 : ˆ;.0 :  806304648 => &03020100 : .... : 50462976
r9  = &00000000 : .... :          0
10:18:46.82 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000000 : .... :          0
r1  = &300F3478 : x4.0 :  806302840 => &00000000 : .... : 0
r2  = &00000000 : .... :          0
r3  = &00000100 : .... :        256
r4  = &0000000B : .... :         11
r5  = &20000192 : ’..  :  536871314
r6  = &FFFFFFFF : .... : 4294967295
r7  = &00000000 : .... :          0
r8  = &00000000 : .... :          0
r9  = &00000023 : #... :         35
10:18:49.94 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000000 : .... :          0
r1  = &300F3068 : h0.0 :  806301800 => &00000000 : .... : 0
r2  = &00000000 : .... :          0
r3  = &00000100 : .... :        256
r4  = &0000000B : .... :         11
r5  = &2013FBB8 : ¸û.  :  538180536 => &68400000 : ..@h : 1749024768
r6  = &0000006D : m... :        109
r7  = &FFFFF954 : Tù.. : 4294965588
r8  = &00000788 : ˆ... :       1928
r9  = &00000023 : #... :         35
10:18:49.94 ShellCLI
10:18:49.94 Exec
10:18:50.43 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000000 : .... :          0
r1  = &300F3478 : x4.0 :  806302840 => &00000000 : .... : 0
r2  = &00000000 : .... :          0
r3  = &00000100 : .... :        256
r4  = &0000000B : .... :         11
r5  = &20000192 : ’..  :  536871314
r6  = &00000000 : .... :          0
r7  = &2034906C : l4  :  540315756 => &000D6572 : re.. : 877938
r8  = &00000000 : .... :          0
r9  = &00000023 : #... :         35
10:18:50.93 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000000 : .... :          0
r1  = &300F3068 : h0.0 :  806301800 => &00000000 : .... : 0
r2  = &00000000 : .... :          0
r3  = &00000100 : .... :        256
r4  = &0000000B : .... :         11
r5  = &20000192 : ’..  :  536871314
r6  = &00000000 : .... :          0
r7  = &2034906C : l4  :  540315756 => &6F706572 : repo : 1869636978
r8  = &00000000 : .... :          0
r9  = &00000023 : #... :         35
10:18:51.43 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000000 : .... :          0
r1  = &300F3478 : x4.0 :  806302840 => &00000000 : .... : 0
r2  = &00000000 : .... :          0
r3  = &00000100 : .... :        256
r4  = &0000000B : .... :         11
r5  = &20000192 : ’..  :  536871314
r6  = &00000000 : .... :          0
r7  = &2034906C : l4  :  540315756 => &6F706572 : repo : 1869636978
r8  = &00000000 : .... :          0
r9  = &00000023 : #... :         35
10:18:51.93 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000000 : .... :          0
r1  = &300F3068 : h0.0 :  806301800 => &00000000 : .... : 0
r2  = &00000000 : .... :          0
r3  = &00000100 : .... :        256
r4  = &0000000B : .... :         11
r5  = &20000192 : ’..  :  536871314
r6  = &00000000 : .... :          0
r7  = &2034906C : l4  :  540315756 => &6F706572 : repo : 1869636978
r8  = &00000000 : .... :          0
r9  = &00000023 : #... :         35
10:18:52.43 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000000 : .... :          0
r1  = &300F3478 : x4.0 :  806302840 => &00000000 : .... : 0
r2  = &00000000 : .... :          0
r3  = &00000100 : .... :        256
r4  = &0000000B : .... :         11
r5  = &20000192 : ’..  :  536871314
r6  = &00000000 : .... :          0
r7  = &2034906C : l4  :  540315756 => &6F706572 : repo : 1869636978
r8  = &00000000 : .... :          0
r9  = &00000023 : #... :         35
10:18:52.93 Palette changed
pc  = &203A74F4  Flags=&40000193=nZcv If  Mode=SVC 32 bit
r0  = &00000000 : .... :          0
r1  = &300F3068 : h0.0 :  806301800 => &00000000 : .... : 0
r2  = &00000000 : .... :          0
r3  = &00000100 : .... :        256
r4  = &0000000B : .... :         11
r5  = &20000192 : ’..  :  536871314
r6  = &00000000 : .... :          0
r7  = &2034906C : l4  :  540315756 => &6F706572 : repo : 1869636978
r8  = &00000000 : .... :          0
r9  = &00000023 : #... :         35

Jun 3, 2018 10:03am

Jeffrey Lee (213) 6048 posts

In true colour modes, the GraphicsV palette entries are used to set the (256 entry) gamma table. So it’s fine to see those calls be issued (if a little redundant in some cases).

I still haven’t got round to investigating the calls in 1/2/4bpp modes where 256 entries are specified.

Jun 3, 2018 10:27am

nemo (145) 2546 posts

In true colour modes, the GraphicsV palette entries are used to set the (256 entry) gamma table.

Which is why there has to be a difference between the current gamma table setting and the configured calibration. This is enforced by my Monitor module for example. Normal writes to the gamma curve are indirected through the calibration curve, so the gamma table can be used for visual effects such as screen fading without ruining the gamma calibration.

This is also the reason for the high-resolution gamma table call – we supported higher resolution hardware gamma tables on The Nucleus precisely so we could have effect & calibration curves without quantisation.

Jun 4, 2018 2:19am

Jon Abbott (1421) 2651 posts

In true colour modes, the GraphicsV palette entries are used to set the (256 entry) gamma table

Why? R0 should have a new entry type for gamma, otherwise every GraphicsV driver needs to check the current bpp before handling GraphicsV 10/11.

So the rogue 256 entry palette changes I’m seeing are possibly Gamma as the GPU is in 16M colours? As R0=0 for both palette and gamma, I can’t tell the two apart.

Jun 4, 2018 9:33am

Jeffrey Lee (213) 6048 posts

In true colour modes, the GraphicsV palette entries are used to set the (256 entry) gamma table

Why?

Don’t ask me! Fixing it is one of the things on my todo list, but it hasn’t yet found its way to the top of the pile.

Jun 4, 2018 11:20am

Jon Abbott (1421) 2651 posts

Fixing it is one of the things on my todo list, but it hasn’t yet found its way to the top of the pile.

Let me know when you have fixed it, I want to see if filtering out just the gamma changes fixes the Pi3 blanking issue.

GraphicsV 11 receiving 256 entries for 1/2/4bpp modes

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Nov 8, 2016 8:32pm Jon Abbott (1421) 2651 posts	When in 2, 4 and 16 palette modes, GraphicsV 11 is receiving a 256 entry palette list when RISCOS swaps between the first and second colours. Should the GraphicsV 11 call not match the number of palette entries in the current mode? I’m also seeing RISCOS attempting to flash colours in 256 colour modes. Do 256 colour modes support flashing colours, or is the flashing palette code always active, regardless of the mode bpp?

Jun 3, 2018 9:45am Jon Abbott (1421) 2651 posts	Some other odd behaviour I’ve noticed, with register dumps on entry to GraphicsV: A 256 entry palette change is issued when you press F12 at a 16M colour desktop: `r0 = &00000000 : .... : 0 r1 = &300F3068 : h0.0 : 806301800 => &00000000 : .... : 0 r2 = &00000000 : .... : 0 r3 = &00000100 : .... : 256 r4 = &0000000B : .... : 11 r5 = &20284018 : .@( : 539508760 => &67800000 : ..€g : 1736441856 r6 = &0000006D : m... : 109 r7 = &FFFFFF4C : L... : 4294967116 r8 = &00000788 : ˆ... : 1928 r9 = &00000023 : #... : 35` On return to the desktop all 256 palette entries are set twice to their entry number as the RGB value (ie FB is set to FBFBFB00), the border is set four times, the cursor palette is set twice and another 256 entry palette is issued. The final 256 entry palette change is issued using two different array pointers: ... r0 = &00000000 : .... : 0 r1 = &FDFDFD00 : .ýýý : 4261281024 r2 = &000000FD : ý... : 253 r3 = &FDFDFD00 : .ýýý : 4261281024 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &FDFDFD00 : .ýýý : 4261281024 r7 = &80808000 : .€€€ : 2155905024 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000000 : .... : 0 r1 = &FDFDFD00 : .ýýý : 4261281024 r2 = &000000FD : ý... : 253 r3 = &FDFDFD00 : .ýýý : 4261281024 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &FDFDFD00 : .ýýý : 4261281024 r7 = &80808000 : .€€€ : 2155905024 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000000 : .... : 0 r1 = &FEFEFE00 : .... : 4278124032 r2 = &000000FE : .... : 254 r3 = &FEFEFE00 : .... : 4278124032 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &FEFEFE00 : .... : 4278124032 r7 = &80808000 : .€€€ : 2155905024 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000000 : .... : 0 r1 = &FEFEFE00 : .... : 4278124032 r2 = &000000FE : .... : 254 r3 = &FEFEFE00 : .... : 4278124032 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &FEFEFE00 : .... : 4278124032 r7 = &80808000 : .€€€ : 2155905024 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000000 : .... : 0 r1 = &FFFFFF00 : .... : 4294967040 r2 = &000000FF : .... : 255 r3 = &FFFFFF00 : .... : 4294967040 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &FFFFFF00 : .... : 4294967040 r7 = &80808000 : .€€€ : 2155905024 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000000 : .... : 0 r1 = &FFFFFF00 : .... : 4294967040 r2 = &000000FF : .... : 255 r3 = &FFFFFF00 : .... : 4294967040 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &FFFFFF00 : .... : 4294967040 r7 = &80808000 : .€€€ : 2155905024 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000001 : .... : 1 r1 = &00000000 : .... : 0 r2 = &00000000 : .... : 0 r3 = &00000000 : .... : 0 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &00000000 : .... : 0 r7 = &80808000 : .€€€ : 2155905024 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000001 : .... : 1 r1 = &00000000 : .... : 0 r2 = &00000000 : .... : 0 r3 = &00000000 : .... : 0 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &00000000 : .... : 0 r7 = &80808000 : .€€€ : 2155905024 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000001 : .... : 1 r1 = &00000000 : .... : 0 r2 = &00000000 : .... : 0 r3 = &00000000 : .... : 0 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &00000000 : .... : 0 r7 = &00000000 : .... : 0 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000001 : .... : 1 r1 = &00000000 : .... : 0 r2 = &00000000 : .... : 0 r3 = &00000000 : .... : 0 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &00000000 : .... : 0 r7 = &00000000 : .... : 0 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000002 : .... : 2 r1 = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176 r2 = &00000001 : .... : 1 r3 = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176 r7 = &00000000 : .... : 0 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000002 : .... : 2 r1 = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176 r2 = &00000001 : .... : 1 r3 = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176 r7 = &00000000 : .... : 0 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000002 : .... : 2 r1 = &99000000 : ...™ : 2566914048 r2 = &00000002 : .... : 2 r3 = &99000000 : ...™ : 2566914048 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &99000000 : ...™ : 2566914048 r7 = &00000000 : .... : 0 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000002 : .... : 2 r1 = &99000000 : ...™ : 2566914048 r2 = &00000002 : .... : 2 r3 = &99000000 : ...™ : 2566914048 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &99000000 : ...™ : 2566914048 r7 = &00000000 : .... : 0 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000002 : .... : 2 r1 = &0000FF00 : .... : 65280 => &E5991010 : ..™å : 3852013584 r2 = &00000003 : .... : 3 r3 = &0000FF00 : .... : 65280 => &E5991010 : ..™å : 3852013584 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &0000FF00 : .... : 65280 => &E5991010 : ..™å : 3852013584 r7 = &00000000 : .... : 0 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000002 : .... : 2 r1 = &0000FF00 : .... : 65280 => &E5991010 : ..™å : 3852013584 r2 = &00000003 : .... : 3 r3 = &0000FF00 : .... : 65280 => &E5991010 : ..™å : 3852013584 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &0000FF00 : .... : 65280 => &E5991010 : ..™å : 3852013584 r7 = &00000000 : .... : 0 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Pointer 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000002 : .... : 2 r1 = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176 r2 = &00000001 : .... : 1 r3 = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176 r7 = &00000000 : .... : 0 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000002 : .... : 2 r1 = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176 r2 = &00000001 : .... : 1 r3 = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &FFFF0000 : .... : 4294901760 => &E59FF418 : .ôŸå : 3852465176 r7 = &00000000 : .... : 0 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000002 : .... : 2 r1 = &99000000 : ...™ : 2566914048 r2 = &00000002 : .... : 2 r3 = &99000000 : ...™ : 2566914048 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &99000000 : ...™ : 2566914048 r7 = &00000000 : .... : 0 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000002 : .... : 2 r1 = &99000000 : ...™ : 2566914048 r2 = &00000002 : .... : 2 r3 = &99000000 : ...™ : 2566914048 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &99000000 : ...™ : 2566914048 r7 = &00000000 : .... : 0 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000002 : .... : 2 r1 = &0000FF00 : .... : 65280 => &E5991010 : ..™å : 3852013584 r2 = &00000003 : .... : 3 r3 = &0000FF00 : .... : 65280 => &E5991010 : ..™å : 3852013584 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &0000FF00 : .... : 65280 => &E5991010 : ..™å : 3852013584 r7 = &00000000 : .... : 0 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.78 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000002 : .... : 2 r1 = &0000FF00 : .... : 65280 => &E5991010 : ..™å : 3852013584 r2 = &00000003 : .... : 3 r3 = &0000FF00 : .... : 65280 => &E5991010 : ..™å : 3852013584 r4 = &0000000A : .... : 10 r5 = &00000000 : .... : 0 r6 = &0000FF00 : .... : 65280 => &E5991010 : ..™å : 3852013584 r7 = &00000000 : .... : 0 r8 = &300F3B88 : ˆ;.0 : 806304648 => &03020100 : .... : 50462976 r9 = &00000000 : .... : 0 10:18:46.82 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000000 : .... : 0 r1 = &300F3478 : x4.0 : 806302840 => &00000000 : .... : 0 r2 = &00000000 : .... : 0 r3 = &00000100 : .... : 256 r4 = &0000000B : .... : 11 r5 = &20000192 : ’.. : 536871314 r6 = &FFFFFFFF : .... : 4294967295 r7 = &00000000 : .... : 0 r8 = &00000000 : .... : 0 r9 = &00000023 : #... : 35 10:18:49.94 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000000 : .... : 0 r1 = &300F3068 : h0.0 : 806301800 => &00000000 : .... : 0 r2 = &00000000 : .... : 0 r3 = &00000100 : .... : 256 r4 = &0000000B : .... : 11 r5 = &2013FBB8 : ¸û. : 538180536 => &68400000 : ..@h : 1749024768 r6 = &0000006D : m... : 109 r7 = &FFFFF954 : Tù.. : 4294965588 r8 = &00000788 : ˆ... : 1928 r9 = &00000023 : #... : 35 10:18:49.94 ShellCLI 10:18:49.94 Exec 10:18:50.43 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000000 : .... : 0 r1 = &300F3478 : x4.0 : 806302840 => &00000000 : .... : 0 r2 = &00000000 : .... : 0 r3 = &00000100 : .... : 256 r4 = &0000000B : .... : 11 r5 = &20000192 : ’.. : 536871314 r6 = &00000000 : .... : 0 r7 = &2034906C : l4 : 540315756 => &000D6572 : re.. : 877938 r8 = &00000000 : .... : 0 r9 = &00000023 : #... : 35 10:18:50.93 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000000 : .... : 0 r1 = &300F3068 : h0.0 : 806301800 => &00000000 : .... : 0 r2 = &00000000 : .... : 0 r3 = &00000100 : .... : 256 r4 = &0000000B : .... : 11 r5 = &20000192 : ’.. : 536871314 r6 = &00000000 : .... : 0 r7 = &2034906C : l4 : 540315756 => &6F706572 : repo : 1869636978 r8 = &00000000 : .... : 0 r9 = &00000023 : #... : 35 10:18:51.43 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000000 : .... : 0 r1 = &300F3478 : x4.0 : 806302840 => &00000000 : .... : 0 r2 = &00000000 : .... : 0 r3 = &00000100 : .... : 256 r4 = &0000000B : .... : 11 r5 = &20000192 : ’.. : 536871314 r6 = &00000000 : .... : 0 r7 = &2034906C : l4 : 540315756 => &6F706572 : repo : 1869636978 r8 = &00000000 : .... : 0 r9 = &00000023 : #... : 35 10:18:51.93 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000000 : .... : 0 r1 = &300F3068 : h0.0 : 806301800 => &00000000 : .... : 0 r2 = &00000000 : .... : 0 r3 = &00000100 : .... : 256 r4 = &0000000B : .... : 11 r5 = &20000192 : ’.. : 536871314 r6 = &00000000 : .... : 0 r7 = &2034906C : l4 : 540315756 => &6F706572 : repo : 1869636978 r8 = &00000000 : .... : 0 r9 = &00000023 : #... : 35 10:18:52.43 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000000 : .... : 0 r1 = &300F3478 : x4.0 : 806302840 => &00000000 : .... : 0 r2 = &00000000 : .... : 0 r3 = &00000100 : .... : 256 r4 = &0000000B : .... : 11 r5 = &20000192 : ’.. : 536871314 r6 = &00000000 : .... : 0 r7 = &2034906C : l4 : 540315756 => &6F706572 : repo : 1869636978 r8 = &00000000 : .... : 0 r9 = &00000023 : #... : 35 10:18:52.93 Palette changed pc = &203A74F4 Flags=&40000193=nZcv If Mode=SVC 32 bit r0 = &00000000 : .... : 0 r1 = &300F3068 : h0.0 : 806301800 => &00000000 : .... : 0 r2 = &00000000 : .... : 0 r3 = &00000100 : .... : 256 r4 = &0000000B : .... : 11 r5 = &20000192 : ’.. : 536871314 r6 = &00000000 : .... : 0 r7 = &2034906C : l4 : 540315756 => &6F706572 : repo : 1869636978 r8 = &00000000 : .... : 0 r9 = &00000023 : #... : 35

Jun 3, 2018 10:03am Jeffrey Lee (213) 6048 posts	In true colour modes, the GraphicsV palette entries are used to set the (256 entry) gamma table. So it’s fine to see those calls be issued (if a little redundant in some cases). I still haven’t got round to investigating the calls in 1/2/4bpp modes where 256 entries are specified.

Jun 3, 2018 10:27am nemo (145) 2546 posts	In true colour modes, the GraphicsV palette entries are used to set the (256 entry) gamma table. Which is why there has to be a difference between the current gamma table setting and the configured calibration. This is enforced by my Monitor module for example. Normal writes to the gamma curve are indirected through the calibration curve, so the gamma table can be used for visual effects such as screen fading without ruining the gamma calibration. This is also the reason for the high-resolution gamma table call – we supported higher resolution hardware gamma tables on The Nucleus precisely so we could have effect & calibration curves without quantisation.

Jun 4, 2018 2:19am Jon Abbott (1421) 2651 posts	In true colour modes, the GraphicsV palette entries are used to set the (256 entry) gamma table Why? R0 should have a new entry type for gamma, otherwise every GraphicsV driver needs to check the current bpp before handling GraphicsV 10/11. So the rogue 256 entry palette changes I’m seeing are possibly Gamma as the GPU is in 16M colours? As R0=0 for both palette and gamma, I can’t tell the two apart.

Jun 4, 2018 9:33am Jeffrey Lee (213) 6048 posts	In true colour modes, the GraphicsV palette entries are used to set the (256 entry) gamma table Why? Don’t ask me! Fixing it is one of the things on my todo list, but it hasn’t yet found its way to the top of the pile.

Jun 4, 2018 11:20am Jon Abbott (1421) 2651 posts	Fixing it is one of the things on my todo list, but it hasn’t yet found its way to the top of the pile. Let me know when you have fixed it, I want to see if filtering out just the gamma changes fixes the Pi3 blanking issue.