Add description for Xtensa instructions

libr/asm/d/Makefile

@@ -1,4 +1,4 @@
-FILES=6502 8051 m68k x86 arc arm avr LH5801 ppc z80 mips sparc sh malbolge
+FILES=6502 8051 m68k x86 arc arm avr LH5801 ppc z80 mips sparc sh malbolge xtensa
 FILES+=i8080 java i4004 dalvik msp430 lm32 sysz tms320 riscv propeller v810 pic18c
 F_SDB=$(addsuffix .sdb,${FILES})
 SDB=../../../shlr/sdb/sdb

libr/asm/d/xtensa

@@ -0,0 +1,240 @@
+abs=absolute value
+abs.s=absolute value single
+add=add
+add.n=narrow add
+add.s=add single
+addi=add immediate
+addi.n=narrow add immediate
+addmi=add immediate with shift by 8
+addx2=add with shift by 1
+addx4=add with shift by 2
+addx8=add with shift by 3
+all4=all 4 booleans true
+all8=all 8 booleans true
+and=bitwise logical and
+andb=boolean and
+andbc=boolean and with complement
+any4=any 4 booleans true
+any8=any 8 booleans true
+ball=branch if all bits set
+bany=branch if any bit set
+bbc=branch if bit clear
+bbci=branch if bit clear immediate
+bbci.l=branch if bit clear immediate LE
+bbs=branch if bit set
+bbsi=branch if bit set immediate
+bbsi.l=branch if bit set immediate LE
+beq=branch if equal
+beqi=branch if equal immediate
+beqz=branch if equal to zero
+beqz.n=narrow branch if equal zero
+bf=branch if false
+bge=branch if greater than or equal
+bgei=branch if greater than or equal immediate
+bgeu=branch if greater than or equal unsigned
+bgeui=i branch if greater than or equal unsigned immediate
+bgez=branch if greater than or equal to zero
+blt=branch if less than
+blti=branch if less than immediate
+bltu=branch if less than unsigned
+bltui=branch if less than unsigned immediate
+bltz=branch if less than zero
+bnall=branch if not-all bits set
+bne=branch if not equal
+bnei=branch if not equal immediate
+bnez=branch if not-equal to zero
+bnez.n=narrow branch if not equal zero
+bnone=branch if no bit set
+break=breakpoint
+break.n=narrow breakpoint
+bt=branch if true
+call0=non-windowed call
+call4=call PC-relative, rotate window by 4
+call8=call PC-relative, rotate window by 8
+call12=call PC-relative, rotate window by 12
+callx0=non-windowed call register
+callx4=call register, rotate window by 4
+callx8=call register, rotate window by 8
+callx12=call register, rotate window by 12
+ceil.s=ceiling single to fixed
+clamps=signed clamp
+dhi=data cache hit invalidate
+dhu=data cache hit unlock
+dhwb=data cache hit writeback
+dhwbi=data cache hit writeback invalidate
+dii=data cache index invalidate
+diu=data cache index unlock
+diwb=data cache index write back
+diwbi=data cache index write back invalidate
+dpfl=data cache prefetch and lock
+dpfr=data cache prefetch for read
+dpfro=data cache prefetch for read once
+dpfw=data cache prefetch for write
+dpfwo=data cache prefetch for write once
+dsync=load/store synchronize
+entry=subroutine entry
+esync=execute synchronize
+excw=exception wait
+extui=extract unsigned immediate
+extw=external wait
+float.s=convert fixed to single
+floor.s=floor single to fixed
+idtlb=invalidate data TLB entry
+ihi=instruction cache hit invalidate
+ihu=instruction cache hit unlock
+iii=instruction cache index invalidate
+iitlb=invalidate instruction TLB entry
+iiu=instruction cache index unlock
+ill=illegal instruction
+ill.n=narrow illegal instruction
+ipf=instruction cache prefetch
+ipfl=instruction cache prefetch and lock
+isync=instruction fetch synchronize
+j=unconditional jump
+j.l=unconditional jump long
+jx=unconditional jump register
+l8ui=load 8-bit unsigned
+l16si=load 16-bit signed
+l16ui=load 16-bit unsigned
+l32ai=load 32-bit acquire
+l32e=load 32-bit for window exceptions
+l32i=load 32-bit
+l32i.n=narrow load 32-bit
+l32r=load 32-bit PC-relative
+ldct=load data cache tag
+lddec=load with autodecrement
+ldinc=load with autoincrement
+lict=load instruction cache tag
+licw=load instruction cache word
+loop=loop
+loopgtz=loop if greater than zero
+loopnez=loop if not-equal zero
+lsi=load single immediate
+lsiu=load single immediate with update
+lsx=load single indexed
+lsxu=load single indexed with update
+madd.s=multiply and add single
+max=maximum value
+maxu=maximum value unsigned
+memw=memory wait
+min=minimum value
+minu=minimum value unsigned
+mov=move
+mov.n=narrow move
+mov.s=move single
+moveqz=move if equal to zero
+moveqz.s=move single if equal to zero
+movf=move if false
+movf.s=move single if false
+movgez=move if greater than or equal to zero
+movgez.s=move single if greater than or equal to zero
+movi=move immediate
+movi.n=narrow move immediate
+movltz=move if less than zero
+movltz.s=move single if less than zero
+movnez=move if not-equal to zero
+movnez.s=move single if not equal to zero
+movsp=move to stack pointer
+movt=move if true
+movt.s=move single if true
+msub.s=multiply and subtract single
+mul.s=multiply single
+mul16s=multiply 16-bit signed
+mul16u=multiply 16-bit unsigned
+mull=multiply low
+mulsh=multiply signed high
+muluh=multiply unsigned high
+neg=negate
+neg.s=negate single
+nop=no-operation
+nop.n=narrow no-operation
+nsa=normalization shift amount
+nsau=normalization shift amount unsigned
+oeq.s=compare single equal
+ole.s=compare single ordered and less than or equal
+olt.s=compare single ordered and less than
+or=bitwise logical or
+orb=boolean or
+orbc=boolean or with complement
+pdtlb=probe data tlb
+pitlb=probe instruction TLB
+quos=quotient signed
+quou=quotient unsigned
+rdtlb0=read data TLB entry virtual
+rdtlb1=read data TLB entry translation
+rems=remainder signed
+remu=remainder unsigned
+rer=read external register
+ret=non-windowed return
+ret.n=narrow non-windowed return
+retw=windowed return
+retw.n=narrow windowed return
+rfdd=return from debug and dispatch
+rfde=return from double exception
+rfdo=return from debug operation
+rfe=return from exception
+rfi=return from high-priority interrupt
+rfme=return from memory error
+rfr=move FR to AR
+rfue=return from user-mode exception
+rfwo=return from window overflow
+rfwu=return from window underflow
+ritlb0=read instruction TLB entry virtual
+ritlb1=read instruction TLB entry translation
+rotw=rotate window
+round.s=round single to fixed
+rsil=read and set interrupt level
+rsr=read special register
+rsync=register read synchronize
+rur=read user register
+s8i=store 8-bit
+s16i=store 16-bit
+s32c1i=store 32-bit compare conditional
+s32e=store 32-bit for window exceptions
+s32i=store 32-bit
+s32i.n=narrow store 32-bit
+s32ri=store 32-bit release
+sdct=store data cache tag
+sext=sign extend
+sict=store instruction cache tag
+sicw=store instruction cache word
+simcall=simulator call
+sll=shift left logical
+slli=shift left logical immediate
+sra=shift right arithmetic
+srai=shift right arithmetic immediate
+src=shift right combined
+srl=shift right logical
+srli=shift right logical immediate
+ssa8b=set shift amount for BE byte shift
+ssa8l=set shift amount for LE byte shift
+ssai=set shift amount immediate
+ssi=store single immediate
+ssiu=store single immediate with update
+ssl=set shift amount for left shift
+ssr=set shift amount for right shift
+ssx=store single indexed
+ssxu=store single indexed with update
+sub=subtract
+sub.s=subtract single
+subx2=subtract with shift by 1
+subx4=subtract with shift by 2
+subx8=subtract with shift by 3
+syscall=system call
+trunc.s=truncate single to fixed
+ueq.s=compare single unordered or equal
+ufloat.s=convert unsigned fixed to single
+ule.s=compare single unord or less than or equal
+ult.s=compare single unordered or less than
+un.s=compare single unordered
+utrunc.s=truncate single to fixed unsigned
+waiti=wait for interrupt
+wdtlb=write data TLB entry
+wer=write external register
+wfr=move AR to FR
+witlb=write instruction TLB entry
+wsr=write special register
+wur=write user register
+xor=bitwise logical exclusive or
+xorb=boolean exclusive or
+xsr=exchange special register