diff options
Diffstat (limited to 'src/arch/x86/isa/insts')
-rw-r--r-- | src/arch/x86/isa/insts/general_purpose/string/move_string.py | 64 |
1 files changed, 51 insertions, 13 deletions
diff --git a/src/arch/x86/isa/insts/general_purpose/string/move_string.py b/src/arch/x86/isa/insts/general_purpose/string/move_string.py index 0a855b384..6a78a2cd4 100644 --- a/src/arch/x86/isa/insts/general_purpose/string/move_string.py +++ b/src/arch/x86/isa/insts/general_purpose/string/move_string.py @@ -53,16 +53,54 @@ # # Authors: Gabe Black -microcode = "" -#let {{ -# class MOVS(Inst): -# "GenFault ${new UnimpInstFault}" -# class MOVSB(Inst): -# "GenFault ${new UnimpInstFault}" -# class MOVSW(Inst): -# "GenFault ${new UnimpInstFault}" -# class MOVSD(Inst): -# "GenFault ${new UnimpInstFault}" -# class MOVSQ(Inst): -# "GenFault ${new UnimpInstFault}" -#}}; +microcode = ''' +def macroop MOVS_M_M { + # Find the constant we need to either add or subtract from rdi + ruflag t0, 10 + movi t3, t3, dsz, flags=(CEZF,), dataSize=asz + subi t4, t0, dsz, dataSize=asz + mov t3, t3, t4, flags=(nCEZF,), dataSize=asz + + ld t1, seg, [1, t0, rsi] + st t1, es, [1, t0, rdi] + + add rdi, rdi, t3, dataSize=asz + add rsi, rsi, t3, dataSize=asz +}; + +def macroop MOVS_E_M_M { + # Find the constant we need to either add or subtract from rdi + ruflag t0, 10 + movi t3, t3, dsz, flags=(CEZF,), dataSize=asz + subi t4, t0, dsz, dataSize=asz + mov t3, t3, t4, flags=(nCEZF,), dataSize=asz + +topOfLoop: + ld t1, seg, [1, t0, rsi] + st t1, es, [1, t0, rdi] + + subi rcx, rcx, 1, flags=(EZF,), dataSize=asz + add rdi, rdi, t3, dataSize=asz + add rsi, rsi, t3, dataSize=asz + bri t0, label("topOfLoop"), flags=(CSTRZnEZF,) + fault "NoFault" +}; + +def macroop MOVS_N_M_M { + # Find the constant we need to either add or subtract from rdi + ruflag t0, 10 + movi t3, t3, dsz, flags=(CEZF,), dataSize=asz + subi t4, t0, dsz, dataSize=asz + mov t3, t3, t4, flags=(nCEZF,), dataSize=asz + +topOfLoop: + ld t1, seg, [1, t0, rsi] + st t1, es, [1, t0, rdi] + + subi rcx, rcx, 1, flags=(EZF,), dataSize=asz + add rdi, rdi, t3, dataSize=asz + add rsi, rsi, t3, dataSize=asz + bri t0, label("topOfLoop"), flags=(CSTRnZnEZF,) + fault "NoFault" +}; +''' |