Bug 28622 - [r300g] Deriving is not working
Summary: [r300g] Deriving is not working
Status: RESOLVED NOTABUG
Alias: None
Product: Mesa
Classification: Unclassified
Component: Other (show other bugs)
Version: git
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: mesa-dev
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Reported: 2010-06-20 04:24 UTC by Ivan Sukin
Modified: 2010-06-20 05:25 UTC (History)
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Description Ivan Sukin 2010-06-20 04:24:12 UTC 
Standard demo "deriv" is not working because of invalid opcode error. 

GL_RENDERER = Gallium 0.4 on RS600
r300 FP: Compiler Error:
r300_fragprog_emit.c::translate_rgb_opcode(): translate_rgb_opcode: Unknown opcode DDY
Using a dummy shader instead.
Comment 1 Marek Olšák 2010-06-20 05:25:04 UTC 
RS600 is a R4xx-class chipset and as such it doesn't have derivative instructions. Closing...

You might need to use swrastg (llvmpipe) instead.

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