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View of /sml/trunk/src/MLRISC/hppa/emit/hppaAsm.sml

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Revision 984 - (download) (annotate)
Wed Nov 21 19:00:08 2001 UTC (18 years, 7 months ago) by george
File size: 19858 byte(s)
  Implemented a complete redesign of MLRISC pseudo-ops. Now there
  ought to never be any question of incompatabilities with
  pseudo-op syntax expected by host assemblers.

  For now, only modules supporting GAS syntax are implemented
  but more should follow, such as MASM, and vendor assembler
  syntax, e.g. IBM as, Sun as, etc.
(*
 * WARNING: This file was automatically generated by MDLGen (v3.0)
 * from the machine description file "hppa/hppa.mdl".
 * DO NOT EDIT this file directly
 *)


functor HppaAsmEmitter(structure S : INSTRUCTION_STREAM
                       structure Instr : HPPAINSTR
                          where T = S.P.T
                       structure Shuffle : HPPASHUFFLE
                          where I = Instr
                       structure MLTreeEval : MLTREE_EVAL
                          where T = Instr.T
                      ) : INSTRUCTION_EMITTER =
struct
   structure I  = Instr
   structure C  = I.C
   structure T  = I.T
   structure S  = S
   structure P  = S.P
   structure Constant = I.Constant
   
   val show_cellset = MLRiscControl.getFlag "asm-show-cellset"
   val show_region  = MLRiscControl.getFlag "asm-show-region"
   val show_cutsTo = MLRiscControl.getFlag "asm-show-cutsto"
   val indent_copies = MLRiscControl.getFlag "asm-indent-copies"
   
   fun error msg = MLRiscErrorMsg.error("HppaAsmEmitter",msg)
   
   fun makeStream formatAnnotations =
   let val stream = !AsmStream.asmOutStream
       fun emit' s = TextIO.output(stream,s)
       val newline = ref true
       val tabs = ref 0
       fun tabbing 0 = ()
         | tabbing n = (emit' "\t"; tabbing(n-1))
       fun emit s = (tabbing(!tabs); tabs := 0; newline := false; emit' s)
       fun nl() = (tabs := 0; if !newline then () else (newline := true; emit' "\n"))
       fun comma() = emit ","
       fun tab() = tabs := 1
       fun indent() = tabs := 2
       fun ms n = let val s = Int.toString n
                  in  if n<0 then "-"^String.substring(s,1,size s-1)
                      else s
                  end
       fun emit_label lab = emit(P.Client.AsmPseudoOps.lexpToString(T.LABEL lab))
       fun emit_labexp le = emit(P.Client.AsmPseudoOps.lexpToString (T.LABEXP le))
       fun emit_const c = emit(Constant.toString c)
       fun emit_int i = emit(ms i)
       fun paren f = (emit "("; f(); emit ")")
       fun defineLabel lab = emit(P.Client.AsmPseudoOps.defineLabel lab^":\n")
       fun entryLabel lab = defineLabel lab
       fun comment msg = (tab(); emit("/* " ^ msg ^ " */\n"))
       fun annotation a = (comment(Annotations.toString a); nl())
       fun getAnnotations() = error "getAnnotations"
       fun doNothing _ = ()
       fun fail _ = raise Fail "AsmEmitter"
       fun emit_region mem = comment(I.Region.toString mem)
       val emit_region = 
          if !show_region then emit_region else doNothing
       fun pseudoOp pOp = (emit(P.toString pOp); emit "\n")
       fun init size = (comment("Code Size = " ^ ms size); nl())
       val emitCellInfo = AsmFormatUtil.reginfo
                                (emit,formatAnnotations)
       fun emitCell r = (emit(CellsBasis.toString r); emitCellInfo r)
       fun emit_cellset(title,cellset) =
         (nl(); comment(title^CellsBasis.CellSet.toString cellset))
       val emit_cellset = 
         if !show_cellset then emit_cellset else doNothing
       fun emit_defs cellset = emit_cellset("defs: ",cellset)
       fun emit_uses cellset = emit_cellset("uses: ",cellset)
       val emit_cutsTo = 
         if !show_cutsTo then AsmFormatUtil.emit_cutsTo emit
         else doNothing
       fun emitter instr =
       let
   fun asm_fmt (I.SGL) = "sgl"
     | asm_fmt (I.DBL) = "dbl"
     | asm_fmt (I.QUAD) = "quad"
   and emit_fmt x = emit (asm_fmt x)
   and asm_loadi (I.LDW) = "ldw"
     | asm_loadi (I.LDH) = "ldh"
     | asm_loadi (I.LDB) = "ldb"
   and emit_loadi x = emit (asm_loadi x)
   and asm_store (I.STW) = "stw"
     | asm_store (I.STH) = "sth"
     | asm_store (I.STB) = "stb"
   and emit_store x = emit (asm_store x)
   and asm_load (I.LDWX) = "ldwx"
     | asm_load (I.LDWX_S) = "ldwx,s"
     | asm_load (I.LDWX_M) = "ldwx,m"
     | asm_load (I.LDWX_SM) = "ldwx,sm"
     | asm_load (I.LDHX) = "ldhx"
     | asm_load (I.LDHX_S) = "ldhx,s"
     | asm_load (I.LDHX_M) = "ldhx,m"
     | asm_load (I.LDHX_SM) = "ldhx,sm"
     | asm_load (I.LDBX) = "ldbx"
     | asm_load (I.LDBX_M) = "ldbx,m"
   and emit_load x = emit (asm_load x)
   and asm_cmp (I.COMBT) = "combt"
     | asm_cmp (I.COMBF) = "combf"
   and emit_cmp x = emit (asm_cmp x)
   and asm_cmpi (I.COMIBT) = "comibt"
     | asm_cmpi (I.COMIBF) = "comibf"
   and emit_cmpi x = emit (asm_cmpi x)
   and asm_arith (I.ADD) = "add"
     | asm_arith (I.ADDL) = "addl"
     | asm_arith (I.ADDO) = "addo"
     | asm_arith (I.SH1ADD) = "sh1add"
     | asm_arith (I.SH1ADDL) = "sh1addl"
     | asm_arith (I.SH1ADDO) = "sh1addo"
     | asm_arith (I.SH2ADD) = "sh2add"
     | asm_arith (I.SH2ADDL) = "sh2addl"
     | asm_arith (I.SH2ADDO) = "sh2addo"
     | asm_arith (I.SH3ADD) = "sh3add"
     | asm_arith (I.SH3ADDL) = "sh3addl"
     | asm_arith (I.SH3ADDO) = "sh3addo"
     | asm_arith (I.SUB) = "sub"
     | asm_arith (I.SUBO) = "subo"
     | asm_arith (I.OR) = "or"
     | asm_arith (I.XOR) = "xor"
     | asm_arith (I.AND) = "and"
     | asm_arith (I.ANDCM) = "andcm"
   and emit_arith x = emit (asm_arith x)
   and asm_arithi (I.ADDI) = "addi"
     | asm_arithi (I.ADDIO) = "addio"
     | asm_arithi (I.ADDIL) = "addil"
     | asm_arithi (I.SUBI) = "subi"
     | asm_arithi (I.SUBIO) = "subio"
   and emit_arithi x = emit (asm_arithi x)
   and asm_shiftv (I.VEXTRU) = "vextru"
     | asm_shiftv (I.VEXTRS) = "vextrs"
     | asm_shiftv (I.ZVDEP) = "zvdep"
   and emit_shiftv x = emit (asm_shiftv x)
   and asm_shift (I.EXTRU) = "extru"
     | asm_shift (I.EXTRS) = "extrs"
     | asm_shift (I.ZDEP) = "zdep"
   and emit_shift x = emit (asm_shift x)
   and asm_farith (I.FADD_S) = "fadd,sgl"
     | asm_farith (I.FADD_D) = "fadd,dbl"
     | asm_farith (I.FADD_Q) = "fadd,quad"
     | asm_farith (I.FSUB_S) = "fsub,sgl"
     | asm_farith (I.FSUB_D) = "fsub,dbl"
     | asm_farith (I.FSUB_Q) = "fsub,quad"
     | asm_farith (I.FMPY_S) = "fmpy,sgl"
     | asm_farith (I.FMPY_D) = "fmpy,dbl"
     | asm_farith (I.FMPY_Q) = "fmpy,quad"
     | asm_farith (I.FDIV_S) = "fdiv,sgl"
     | asm_farith (I.FDIV_D) = "fdiv,dbl"
     | asm_farith (I.FDIV_Q) = "fdiv,quad"
     | asm_farith (I.XMPYU) = "xmpyu"
   and emit_farith x = emit (asm_farith x)
   and asm_funary (I.FCPY_S) = "fcpy,sgl"
     | asm_funary (I.FCPY_D) = "fcpy,dbl"
     | asm_funary (I.FCPY_Q) = "fcpy,quad"
     | asm_funary (I.FABS_S) = "fabs,sgl"
     | asm_funary (I.FABS_D) = "fabs,dbl"
     | asm_funary (I.FABS_Q) = "fabs,quad"
     | asm_funary (I.FSQRT_S) = "fsqrt,sgl"
     | asm_funary (I.FSQRT_D) = "fsqrt,dbl"
     | asm_funary (I.FSQRT_Q) = "fsqrt,quad"
     | asm_funary (I.FRND_S) = "frnd,sgl"
     | asm_funary (I.FRND_D) = "frnd,dbl"
     | asm_funary (I.FRND_Q) = "frnd,quad"
   and emit_funary x = emit (asm_funary x)
   and asm_fcnv (I.FCNVFF_SD) = "fcnvff,sgl,dbl"
     | asm_fcnv (I.FCNVFF_SQ) = "fcnvff,sgl,quad"
     | asm_fcnv (I.FCNVFF_DS) = "fcnvff,dbl,sgl"
     | asm_fcnv (I.FCNVFF_DQ) = "fcnvff,dbl,quad"
     | asm_fcnv (I.FCNVFF_QS) = "fcnvff,quad,sgl"
     | asm_fcnv (I.FCNVFF_QD) = "fcnvff,quad,dbl"
     | asm_fcnv (I.FCNVXF_S) = "fcnvxf,,sgl"
     | asm_fcnv (I.FCNVXF_D) = "fcnvxf,,dbl"
     | asm_fcnv (I.FCNVXF_Q) = "fcnvxf,,quad"
     | asm_fcnv (I.FCNVFX_S) = "fcnvfx,sgl,"
     | asm_fcnv (I.FCNVFX_D) = "fcnvfx,dbl,"
     | asm_fcnv (I.FCNVFX_Q) = "fcnvfx,quad,"
     | asm_fcnv (I.FCNVFXT_S) = "fcnvfxt,sgl,"
     | asm_fcnv (I.FCNVFXT_D) = "fcnvfxt,dbl,"
     | asm_fcnv (I.FCNVFXT_Q) = "fcnvfxt,quad,"
   and emit_fcnv x = emit (asm_fcnv x)
   and asm_fstore (I.FSTDS) = "fstds"
     | asm_fstore (I.FSTWS) = "fstws"
   and emit_fstore x = emit (asm_fstore x)
   and asm_fstorex (I.FSTDX) = "fstdx"
     | asm_fstorex (I.FSTDX_S) = "fstdx,s"
     | asm_fstorex (I.FSTDX_M) = "fstdx,m"
     | asm_fstorex (I.FSTDX_SM) = "fstdx,sm"
     | asm_fstorex (I.FSTWX) = "fstwx"
     | asm_fstorex (I.FSTWX_S) = "fstwx,s"
     | asm_fstorex (I.FSTWX_M) = "fstwx,m"
     | asm_fstorex (I.FSTWX_SM) = "fstwx,sm"
   and emit_fstorex x = emit (asm_fstorex x)
   and asm_floadx (I.FLDDX) = "flddx"
     | asm_floadx (I.FLDDX_S) = "flddx,s"
     | asm_floadx (I.FLDDX_M) = "flddx,m"
     | asm_floadx (I.FLDDX_SM) = "flddx,sm"
     | asm_floadx (I.FLDWX) = "fldwx"
     | asm_floadx (I.FLDWX_S) = "fldwx,s"
     | asm_floadx (I.FLDWX_M) = "fldwx,m"
     | asm_floadx (I.FLDWX_SM) = "fldwx,sm"
   and emit_floadx x = emit (asm_floadx x)
   and asm_fload (I.FLDDS) = "fldds"
     | asm_fload (I.FLDWS) = "fldws"
   and emit_fload x = emit (asm_fload x)
   and asm_bcond (I.EQ) = "="
     | asm_bcond (I.LT) = "<"
     | asm_bcond (I.LE) = "<="
     | asm_bcond (I.LTU) = "<<"
     | asm_bcond (I.LEU) = "<<="
     | asm_bcond (I.NE) = "<>"
     | asm_bcond (I.GE) = ">="
     | asm_bcond (I.GT) = ">"
     | asm_bcond (I.GTU) = ">>"
     | asm_bcond (I.GEU) = ">>="
   and emit_bcond x = emit (asm_bcond x)
   and asm_bitcond (I.BSET) = "<"
     | asm_bitcond (I.BCLR) = ">="
   and emit_bitcond x = emit (asm_bitcond x)
   and asm_fcond (I.False_) = "false?"
     | asm_fcond (I.False) = "false"
     | asm_fcond (I.?) = "?"
     | asm_fcond (I.!<=>) = "!<=>"
     | asm_fcond (I.==) = "=="
     | asm_fcond (I.EQT) = "=t"
     | asm_fcond (I.?=) = "?="
     | asm_fcond (I.!<>) = "!<>"
     | asm_fcond (I.!?>=) = "!?>="
     | asm_fcond (I.<) = "<"
     | asm_fcond (I.?<) = "?<"
     | asm_fcond (I.!>=) = "!>="
     | asm_fcond (I.!?>) = "!?>"
     | asm_fcond (I.<=) = "<="
     | asm_fcond (I.?<=) = "?<="
     | asm_fcond (I.!>) = "!>"
     | asm_fcond (I.!?<=) = "!?<="
     | asm_fcond (I.>) = ">"
     | asm_fcond (I.?>) = "?>"
     | asm_fcond (I.!<=) = "!<="
     | asm_fcond (I.!?<) = "!?<"
     | asm_fcond (I.>=) = ">="
     | asm_fcond (I.?>=) = "?>="
     | asm_fcond (I.!<) = "!<"
     | asm_fcond (I.!?=) = "!?="
     | asm_fcond (I.<>) = "<>"
     | asm_fcond (I.!=) = "!="
     | asm_fcond (I.NET) = "!=t"
     | asm_fcond (I.!?) = "!?"
     | asm_fcond (I.<=>) = "<=>"
     | asm_fcond (I.True_) = "true?"
     | asm_fcond (I.True) = "true"
   and emit_fcond x = emit (asm_fcond x)
   and emit_operand (I.REG GP) = emit "reg"
     | emit_operand (I.IMMED int) = emit_int int
     | emit_operand (I.LabExp(labexp, field_selector)) = emit_labexp labexp
     | emit_operand (I.HILabExp(labexp, field_selector)) = emit_labexp labexp
     | emit_operand (I.LOLabExp(labexp, field_selector)) = emit_labexp labexp

(*#line 637.7 "hppa/hppa.mdl"*)
   fun emit_n false = ()
     | emit_n true = emit ",n"

(*#line 638.7 "hppa/hppa.mdl"*)
   fun emit_nop false = ()
     | emit_nop true = emit "\n\tnop"
   fun emitInstr' instr = 
       (case instr of
         I.LOADI{li, r, i, t, mem} => 
         ( emit_loadi li; 
           emit "\t"; 
           emit_operand i; 
           emit "("; 
           emitCell r; 
           emit "), "; 
           emitCell t; 
           emit_region mem )
       | I.LOAD{l, r1, r2, t, mem} => 
         ( emit_load l; 
           emit "\t"; 
           emitCell r2; 
           emit "("; 
           emitCell r1; 
           emit "), "; 
           emitCell t; 
           emit_region mem )
       | I.STORE{st, b, d, r, mem} => 
         ( emit_store st; 
           emit "\t"; 
           emitCell r; 
           emit ", "; 
           emit_operand d; 
           emit "("; 
           emitCell b; 
           emit ")"; 
           emit_region mem )
       | I.ARITH{a, r1, r2, t} => 
         ( emit_arith a; 
           emit "\t"; 
           emitCell r1; 
           emit ", "; 
           emitCell r2; 
           emit ", "; 
           emitCell t )
       | I.ARITHI{ai, i, r, t} => 
         ( emit_arithi ai; 
           emit "\t"; 
           emit_operand i; 
           emit ", "; 
           emitCell r; 
           emit ", "; 
           emitCell t )
       | I.COMCLR_LDO{cc, r1, r2, t1, i, b, t2} => 
         ( 
           ( emit "comclr,"; 
             emit_bcond cc; 
             emit "\t"; 
             emitCell r1; 
             emit ", "; 
             emitCell r2; 
             emit ", "; 
             emitCell t1; 
             emit "\n\t" ); 
           
           ( emit "ldo\t"; 
             emit_int i; 
             emit "("; 
             emitCell b; 
             emit "), "; 
             emitCell t2 ) )
       | I.COMICLR_LDO{cc, i1, r2, t1, i2, b, t2} => 
         ( 
           ( emit "comiclr,"; 
             emit_bcond cc; 
             emit "\t"; 
             emitCell r2; 
             emit ", "; 
             emit_operand i1; 
             emit ", "; 
             emitCell t1; 
             emit "\n\t" ); 
           
           ( emit "ldo\t"; 
             emit_int i2; 
             emit "("; 
             emitCell b; 
             emit "), "; 
             emitCell t2 ) )
       | I.SHIFTV{sv, r, len, t} => 
         ( emit_shiftv sv; 
           emit "\t"; 
           emitCell r; 
           emit ", "; 
           emit_int len; 
           emit ", "; 
           emitCell t )
       | I.SHIFT{s, r, p, len, t} => 
         ( emit_shift s; 
           emit "\t"; 
           emitCell r; 
           emit ", "; 
           emit_int p; 
           emit ", "; 
           emit_int len; 
           emit ", "; 
           emitCell t )
       | I.BCOND{cmp, bc, r1, r2, n, nop, t, f} => 
         ( emit_cmp cmp; 
           emit ","; 
           emit_bcond bc; 
           emit_n n; 
           emit "\t"; 
           emitCell r1; 
           emit ", "; 
           emitCell r2; 
           emit ", "; 
           emit_label t; 
           emit_nop nop )
       | I.BCONDI{cmpi, bc, i, r2, n, nop, t, f} => 
         ( emit_cmpi cmpi; 
           emit ","; 
           emit_bcond bc; 
           emit_n n; 
           emit "\t"; 
           emit_int i; 
           emit ", "; 
           emitCell r2; 
           emit ", "; 
           emit_label t; 
           emit_nop nop )
       | I.BB{bc, r, p, n, nop, t, f} => 
         ( emit "bb,"; 
           emit_bitcond bc; 
           emit_n n; 
           emit "\t"; 
           emitCell r; 
           emit ", "; 
           emit_int p; 
           emit ", "; 
           emit_label t; 
           emit_nop nop )
       | I.B{lab, n} => 
         ( emit "b"; 
           emit_n n; 
           emit "\t"; 
           emit_label lab )
       | I.LONGJUMP{lab, n, tmp, tmpLab} => 
         ( 
           ( emit "bl,n\t"; 
             emit_label tmpLab; 
             emit ", "; 
             emitCell tmp; 
             emit "\n" ); 
           
           ( emit_label tmpLab; 
             emit ":\n\t" ); 
           
           ( emit "addil "; 
             emit_label lab; 
             emit "-("; 
             emit_label tmpLab; 
             emit "+4), "; 
             emitCell tmp; 
             emit "\n\t" ); 
           
           ( emit "bv"; 
             emit_n n; 
             emit "\t%r0("; 
             emitCell tmp; 
             emit ")" ) )
       | I.BE{b, d, sr, n, labs} => 
         ( emit "be"; 
           emit_n n; 
           emit "\t"; 
           emit_operand d; 
           emit "("; 
           emit_int sr; 
           emit ","; 
           emitCell b; 
           emit ")" )
       | I.BV{x, b, labs, n} => 
         ( emit "bv"; 
           emit_n n; 
           emit "\t"; 
           emitCell x; 
           emit "("; 
           emitCell b; 
           emit ")" )
       | I.BLR{x, t, labs, n} => 
         ( emit "blr"; 
           emit_n n; 
           emit "\t"; 
           emitCell x; 
           emit "("; 
           emitCell t; 
           emit ")" )
       | I.BL{lab, t, defs, uses, cutsTo, mem, n} => 
         ( emit "bl"; 
           emit_n n; 
           emit "\t"; 
           emit_label lab; 
           emit ", "; 
           emitCell t; 
           emit_region mem; 
           emit_defs defs; 
           emit_uses uses; 
           emit_cutsTo cutsTo )
       | I.BLE{d, b, sr, t, defs, uses, cutsTo, mem} => 
         ( emit "ble\t"; 
           emit_operand d; 
           emit "("; 
           emit_int sr; 
           emit ","; 
           emitCell b; 
           emit ")"; 
           emit_region mem; 
           emit_defs defs; 
           emit_uses uses; 
           emit_cutsTo cutsTo )
       | I.LDIL{i, t} => 
         ( emit "ldil\t"; 
           emit_operand i; 
           emit ", "; 
           emitCell t )
       | I.LDO{i, b, t} => 
         ( emit "ldo\t"; 
           emit_operand i; 
           emit "("; 
           emitCell b; 
           emit "), "; 
           emitCell t )
       | I.MTCTL{r, t} => 
         ( emit "mtctl\t"; 
           emitCell r; 
           emit ", "; 
           emitCell t )
       | I.FSTORE{fst, b, d, r, mem} => 
         ( emit_fstore fst; 
           emit "\t"; 
           emitCell r; 
           emit ", "; 
           emit_int d; 
           emit "("; 
           emitCell b; 
           emit ")"; 
           emit_region mem )
       | I.FSTOREX{fstx, b, x, r, mem} => 
         ( emit_fstorex fstx; 
           emit "\t"; 
           emitCell r; 
           emit ", "; 
           emitCell x; 
           emit "("; 
           emitCell b; 
           emit ")"; 
           emit_region mem )
       | I.FLOAD{fl, b, d, t, mem} => 
         ( emit_fload fl; 
           emit "\t"; 
           emit_int d; 
           emit "("; 
           emitCell b; 
           emit "), "; 
           emitCell t; 
           emit_region mem )
       | I.FLOADX{flx, b, x, t, mem} => 
         ( emit_floadx flx; 
           emit "\t"; 
           emitCell x; 
           emit "("; 
           emitCell b; 
           emit "), "; 
           emitCell t; 
           emit_region mem )
       | I.FARITH{fa, r1, r2, t} => 
         ( emit_farith fa; 
           emit "\t"; 
           emitCell r1; 
           emit ", "; 
           emitCell r2; 
           emit ", "; 
           emitCell t )
       | I.FUNARY{fu, f, t} => 
         ( emit_funary fu; 
           emit "\t"; 
           emitCell f; 
           emit ", "; 
           emitCell t )
       | I.FCNV{fcnv, f, t} => 
         ( emit_fcnv fcnv; 
           emit "\t"; 
           emitCell f; 
           emit ", "; 
           emitCell t )
       | I.FBRANCH{cc, fmt, f1, f2, t, f, n, long} => 
         ( 
           ( emit "fcmp,"; 
             emit_fmt fmt; 
             emit ","; 
             emit_fcond cc; 
             emit "\t"; 
             emitCell f1; 
             emit ", "; 
             emitCell f2; 
             emit "\n\t" ); 
           emit "ftest\n\t"; 
           
           ( emit "b"; 
             emit_n n; 
             emit "\t"; 
             emit_label t ) )
       | I.BREAK{code1, code2} => 
         ( emit "break\t"; 
           emit_int code1; 
           emit ", "; 
           emit_int code2 )
       | I.NOP => emit "nop"
       | I.COPY{dst, src, impl, tmp} => emitInstrs (Shuffle.shuffle {tmp=tmp, 
            src=src, dst=dst})
       | I.FCOPY{dst, src, impl, tmp} => emitInstrs (Shuffle.shufflefp {tmp=tmp, 
            src=src, dst=dst})
       | I.ANNOTATION{i, a} => 
         ( comment (Annotations.toString a); 
           nl (); 
           emitInstr i )
       | I.SOURCE{} => emit "source"
       | I.SINK{} => emit "sink"
       | I.PHI{} => emit "phi"
       )
          and emitInstr i = (tab(); emitInstr' i; nl())
          and emitInstrIndented i = (indent(); emitInstr' i; nl())
          and emitInstrs instrs =
           app (if !indent_copies then emitInstrIndented
                else emitInstr) instrs
      in  emitInstr instr end
   
   in  S.STREAM{beginCluster=init,
                pseudoOp=pseudoOp,
                emit=emitter,
                endCluster=fail,
                defineLabel=defineLabel,
                entryLabel=entryLabel,
                comment=comment,
                exitBlock=doNothing,
                annotation=annotation,
                getAnnotations=getAnnotations
               }
   end
end


root@smlnj-gforge.cs.uchicago.edu
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