Qualcomm – one of Arm’s biggest customers – starts a RISC-V joint venture

Re:Qualcomm – one of Arm’s biggest customers – starts a RISC... by panick21_ on Monday August 07, 2023 @04:27AM (#37031829)

SPARC only has a 32bit version that's open. Its really not a option. Even if want to use something 32bit, you would like some upgrade path for the future. And technically its also just worse in pretty much every way. After the standardisation there was very little continued progress and investment.

OpenPOWER only became open many, many years after RISC-V was open. OpenPOWER was basically just a marketing name, it was not actually open. Once RISC-V was opened for real, eventually the pressure was on OpenPOWER to actually be opened.

However by the time they opened it up RISC-V already had all the momentum both commercially and in terms of open development.

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Re:Qualcomm – one of Arm’s biggest customers – starts a RISC... by ThrowawayR2 on Monday August 07, 2023 @11:42AM (#37036002)

OpenSPARC seems to have had open 64-bit designs released before RISC-V was launched?

"In March 2006, the complete design of Sun Microsystems' UltraSPARC T1 microprocessor was released-in open-source form, it was named OpenSPARC T1. In early 2008, its successor, OpenSPARC T2, was also released in open-source form. These were the first (and still only) 64-bit microprocessors ever open-sourced. " -https://www.oracle.com/servers/technologies/opensparc.html

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Re:Qualcomm – one of Arm’s biggest customers – starts a RISC... by panick21_ on Monday August 07, 2023 @12:45PM (#37036975)

The 32bit is a standard 'IEEE Standard 1754-1994'. The 64 bit implementation was released by SPARC International but its not a standard.

As far as I know without joining SPARC International you are not allowed to commercially use SPARC 64bit commercially.

There might be open implementations, but that doesn't mean you can be sued for using the architecture.

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