gem5 - gem5

Age	Commit message (Collapse)	Author
2017-02-10	x86: Fix implicit stack addressing in 64-bit mode	Jason Lowe-Power
	When in 64-bit mode, if the stack is accessed implicitly by an instruction the alternate address prefix should be ignored if present. This patch adds an extra flag to the ldstop which signifies when the address override should be ignored. Then, for all of the affected instructions, this patch adds two options to the ld and st opcode to use the current stack addressing mode for all addresses and to ignore the AddressSizeFlagBit. Finally, this patch updates the x86 TLB to not truncate the address if it is in 64-bit mode and the IgnoreAddrSizeFlagBit is set. This fixes a problem when calling __libc_start_main with a binary that is linked with a recent version of ld. This version of ld uses the address override prefix (0x67) on the call instruction instead of a nop. Note: This has not been tested in compatibility mode and only the call instruction with the address override prefix has been tested. See [1] page 9 (pdf page 45) For instructions that are affected see [1] page 519 (pdf page 555). [1] http://support.amd.com/TechDocs/24594.pdf Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
2011-02-02	X86: Replace the stupd microop with a store/update sequence.	Gabe Black

2010-05-23	copyright: Change HP copyright on x86 code to be more friendly	Nathan Binkert

2009-08-07	X86: Don't truncate the immediate parameter for the ENTER instruction.	Gabe Black

2009-08-06	X86: Adjust the various sizes used for the enter and leave instructions.	Gabe Black

2009-07-16	X86: Fix a number of places where the wrong form of a microop was used.	Gabe Black

2009-02-25	X86: Do a merge for the zero extension microop.	Gabe Black

2008-10-12	X86: Create a SeqOp class of microops and make Br one of them.	Gabe Black

2008-06-12	X86: Make pushes and pops use the stack size instead of the data size.	Gabe Black

2007-11-12	X86: Change the meaning of the sext and zext width operand, and make sext ↵	Gabe Black
	set zext if the sign bit is 0. --HG-- extra : convert_revision : 08bd7b4ff183038c016612d04ac73b20a255d141
2007-10-22	X86: Use the cda microop where appropriate. The ENTER instruction still ↵	Gabe Black
	needs these. --HG-- extra : convert_revision : c5a1a6d66c454f252d3b798c38a6798e7dd486f0
2007-10-21	X86: Start using the stupd microop, and update statistics accordingly.	Gabe Black
	--HG-- extra : convert_revision : 4aa9daa4e19acfb3e6840ce5d83cf199e30c2f19
2007-10-21	X86: Implement the stupd microop ("store with update", not "stupid") and use ↵	Gabe Black
	it in ENTER. --HG-- extra : convert_revision : 9151f701162d31ef26298497467c42b7b0ed85d5
2007-10-19	X86: Implement the ENTER instruction. This could probably be optimized by ↵	Gabe Black
	cleaning up the indexing in the main loop. --HG-- extra : convert_revision : ad2d560f2a6f36176b22b8510c58cd6fe5a2c9c2
2007-10-02	X86: Put ldst into the microcode (the earlier changeset didn't really).	Gabe Black
	Also clean things up as much as possible so that faulting won't break an instruction. More microops which verify addresses are needed. --HG-- extra : convert_revision : 7c6050cb4798d287fe7d3cc4bb8c20dfa40ad2be
2007-09-19	X86: Put in stubs for x87, 64 bit and 128 bit SIMD instruction microcode.	Gabe Black
	--HG-- rename : src/arch/x86/isa/insts/sse/__init__.py => src/arch/x86/isa/insts/simd128/__init__.py extra : convert_revision : efb4405aebaa4a04f33572e7d078ceca45872d9c