пятница, 27 июня 2025 г.

curse of IMAD

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Found strange case while disassembly some forms of IMAD (btw raison d'être of GPU). Official nvdisasm shows: IMAD.WIDE R2, R7, R6, c[0x0...
воскресенье, 15 июня 2025 г.

nvdisasm sass parser

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Having sass assembler it seems like easy task to make parser for it. So I made parser of nvdisasm output   Lets check some samples: SHF.R....
пятница, 30 мая 2025 г.

nvidia sass assembler

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I am very skeptical about patching of existing .cubin files - it requires too much book-keeping. Let's say we want to insert several add...
воскресенье, 4 мая 2025 г.

nvidia sass latency tables

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It seems that latency values are the best kept secret - I was able to find only article in internet and author didn't provided any code...
пятница, 18 апреля 2025 г.

nvidia sass disassembler, part 7: dual issued instructions

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Previous parts: 1 , 2 , 3 , 4 , 5 & 6 As you could notice genuine nvdisasm put couple of instructions in curly braces for old sm (alwa...
пятница, 11 апреля 2025 г.

nvidia sass disassembler, part 6: predicates

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Previous parts: 1 , 2 , 3 , 4 & 5 Lets check how pairs of instructions are chained together - this information stored in MD files with ...
пятница, 4 апреля 2025 г.

ptx instructions emitting by nvidia compiler. part 2

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Part 1 described v10 And today let's check cicc v12. The first thing that catches your eye is its size - almost 76Mb! And it also conta...