llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-08 04:07:07 +00:00

History

Chris Lattner 1139691e3a move all the target's asmprinters into the main target. The piece that should be split out is the InstPrinter (if a target is mc'ized). This change makes all the targets be consistent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119056 91177308-0d34-0410-b5e6-96231b3b80d8		2010-11-14 18:43:56 +00:00
..
TargetInfo
Alpha.h
Alpha.td
AlphaAsmPrinter.cpp	move all the target's asmprinters into the main target. The piece	2010-11-14 18:43:56 +00:00
AlphaBranchSelector.cpp
AlphaCallingConv.td
AlphaInstrFormats.td
AlphaInstrInfo.cpp
AlphaInstrInfo.h
AlphaInstrInfo.td
AlphaISelDAGToDAG.cpp
AlphaISelLowering.cpp	Inline asm multiple alternative constraints development phase 2 - improved basic logic, added initial platform support.	2010-10-29 17:29:13 +00:00
AlphaISelLowering.h	Inline asm multiple alternative constraints development phase 2 - improved basic logic, added initial platform support.	2010-10-29 17:29:13 +00:00
AlphaLLRP.cpp
AlphaMachineFunctionInfo.h
AlphaMCAsmInfo.cpp
AlphaMCAsmInfo.h
AlphaRegisterInfo.cpp
AlphaRegisterInfo.h
AlphaRegisterInfo.td
AlphaRelocations.h
AlphaSchedule.td
AlphaSelectionDAGInfo.cpp
AlphaSelectionDAGInfo.h
AlphaSubtarget.cpp
AlphaSubtarget.h
AlphaTargetMachine.cpp	remove JIT support from the Alpha backend. The JIT will be moving to MC,	2010-11-14 18:24:41 +00:00
AlphaTargetMachine.h	remove JIT support from the Alpha backend. The JIT will be moving to MC,	2010-11-14 18:24:41 +00:00
CMakeLists.txt	move all the target's asmprinters into the main target. The piece	2010-11-14 18:43:56 +00:00
Makefile	move all the target's asmprinters into the main target. The piece	2010-11-14 18:43:56 +00:00
README.txt

README.txt

***

add gcc builtins for alpha instructions


***

custom expand byteswap into nifty 
extract/insert/mask byte/word/longword/quadword low/high
sequences

***

see if any of the extract/insert/mask operations can be added

***

match more interesting things for cmovlbc cmovlbs (move if low bit clear/set)

***

lower srem and urem

remq(i,j):  i - (j * divq(i,j)) if j != 0
remqu(i,j): i - (j * divqu(i,j)) if j != 0
reml(i,j):  i - (j * divl(i,j)) if j != 0
remlu(i,j): i - (j * divlu(i,j)) if j != 0

***

add crazy vector instructions (MVI):

(MIN|MAX)(U|S)(B8|W4) min and max, signed and unsigned, byte and word
PKWB, UNPKBW pack/unpack word to byte
PKLB UNPKBL pack/unpack long to byte
PERR pixel error (sum accross bytes of bytewise abs(i8v8 a - i8v8 b))

cmpbytes bytewise cmpeq of i8v8 a and i8v8 b (not part of MVI extentions)

this has some good examples for other operations that can be synthesised well 
from these rather meager vector ops (such as saturating add).
http://www.alphalinux.org/docs/MVI-full.html