search for: 65636

...n-independent code, because the address is calculated > relative to PC." > > From this, I'd expect ADRP to simply do Xd <- PC + n*4096, where n is a 20 > bit number, just like AUIPC in RISC-V (also a 20 literal multiplied by 4096) > or AUIPC in MIPS (16 bits multiplied by 65636 there). Afraid not. It really is (PC & ~0xfff) + n * 0x1000. So it does require 12-bit alignment of any code section. Now that you mention the MIPS & RISC-V alternatives, I'm not sure why ARM actually made that choice. It obviously saves you a handful of transistors but I can't qu...

...DRL produces position-independent code, because the address is calculated relative to PC." >From this, I'd expect ADRP to simply do Xd <- PC + n*4096, where n is a 20 bit number, just like AUIPC in RISC-V (also a 20 literal multiplied by 4096) or AUIPC in MIPS (16 bits multiplied by 65636 there). In all cases, if you then do an add immediate with a 12 bit signed literal (16 bit for MIPS) then you've got a relative offset from the current PC< accurate to the byte, anywhere in a +/- 2 GB range. The actual alignment of the PC is irrelevant. It's not like the ADRP or AUIPC...

...is > calculated > > relative to PC." > > > > From this, I'd expect ADRP to simply do Xd <- PC + n*4096, where n is a > 20 > > bit number, just like AUIPC in RISC-V (also a 20 literal multiplied by > 4096) > > or AUIPC in MIPS (16 bits multiplied by 65636 there). > > Afraid not. It really is (PC & ~0xfff) + n * 0x1000. So it does > require 12-bit alignment of any code section. > > Now that you mention the MIPS & RISC-V alternatives, I'm not sure why > ARM actually made that choice. It obviously saves you a handful of &g...

...ive to PC." >> > >> > From this, I'd expect ADRP to simply do Xd <- PC + n*4096, where n is a >> > 20 >> > bit number, just like AUIPC in RISC-V (also a 20 literal multiplied by >> > 4096) >> > or AUIPC in MIPS (16 bits multiplied by 65636 there). >> >> Afraid not. It really is (PC & ~0xfff) + n * 0x1000. So it does >> require 12-bit alignment of any code section. >> >> Now that you mention the MIPS & RISC-V alternatives, I'm not sure why >> ARM actually made that choice. It obviously s...

Hello, I am working in an embedded environment with somewhat restrictive memory requirements where the page alignment requirements of an ADRP instruction cannot be guaranteed. With the ld program inside of the Xcode, there is a -preload flag which causes ADRP instructions to be dropped, and generates code that is 100% position independent. As near as I can determine, ld.lld does not have this

...Submitted By: Alex Fenton (brokentoy) Assigned to: Alex Fenton (brokentoy) Summary: Invalid value for TreeCtrl#get_root_id when TR_HIDE_ROOT style is set (MSW) Initial Comment: When a TreeCtrl is created with the TR_HIDE_ROOT style, the id values returned by add_root and get_root_id are invalid (-65636) - if passed back into get_item_text , get_item_data, item_has_children etc nothing is returned. ---------------------------------------------------------------------- You can respond by visiting: http://rubyforge.org/tracker/?func=detail&atid=218&aid=13640&group_id=35

...ive to PC." >> > >> > From this, I'd expect ADRP to simply do Xd <- PC + n*4096, where n is a >> > 20 >> > bit number, just like AUIPC in RISC-V (also a 20 literal multiplied by >> > 4096) >> > or AUIPC in MIPS (16 bits multiplied by 65636 there). >> >> Afraid not. It really is (PC & ~0xfff) + n * 0x1000. So it does >> require 12-bit alignment of any code section. >> >> Now that you mention the MIPS & RISC-V alternatives, I'm not sure why >> ARM actually made that choice. It obviously s...