rscid = "$Header$"

EM_WSIZE=2
EM_PSIZE=2
EM_BSIZE=4

SL=4

FORMAT = "0%o"
TIMEFACTOR = 1/300

illins = "Illegal"

PROPERTIES

GENREG			/* All PDP registers */
REG			/* Normal registers (allocatable) */
ODDREG			/* All odd registers (allocatable) */
REGPAIR(4)		/* Register pairs for division */
FLTREG(4)		/* Floating point registers, single precision */
DBLREG(8)		/* Same, double precision */
GENFREG(4)		/* generic floating point */
GENDREG(8)		/* generic floating point */
FLTREGPAIR(8)		/* register pair for modf */
DBLREGPAIR(16)		/* same, double precision */
LOCALBASE		/* Guess what */
STACKPOINTER
PROGRAMCOUNTER

REGISTERS

r0					: GENREG,REG.
r2,r4					: GENREG,REG regvar.
r1,r3					: GENREG,REG,ODDREG.
r01("r0")=r0+r1				: REGPAIR.
fr0("r0"),fr1("r1"),fr2("r2"),fr3("r3") : GENFREG,FLTREG.
dr0("r0")=fr0,dr1("r1")=fr1,dr2("r2")=fr2,dr3("r3")=fr3 : GENDREG,DBLREG.
fr01("r0")=fr0+fr1,fr23("r2")=fr2+fr3	: FLTREGPAIR.
dr01("r0")=dr0+dr1,dr23("r2")=dr2+dr3	: DBLREGPAIR.
lb("r5")				: GENREG,LOCALBASE.
sp					: GENREG,STACKPOINTER.
pc					: GENREG,PROGRAMCOUNTER.

TOKENS

const2 		= { INT num; } 2 "$" num .
LOCAL 		= { INT ind; INT size; } 2 ind "(r5)" .
ILOCAL		= { INT ind; } 2 "*" ind "(r5)" .
DLOCAL 		= { INT ind; INT size; } 4 ind "(r5)" .
addr_local 	= { INT ind; } 2 .
addr_external 	= { ADDR off; } 2 "$" off.

regdef2 	= { GENREG reg; } 2 "*" reg.
regind2 	= { GENREG reg; ADDR off; } 2 off "(" reg ")" .
reginddef2 	= { GENREG reg; ADDR off; } 2 "*" off "(" reg ")" .
regconst2	= { GENREG reg; ADDR off; } 2 .
relative2	= { ADDR off; } 2 off .
reldef2		= { ADDR off; } 2 "*" off.
regdef1 	= { GENREG reg; } 2 "*" reg.
regind1 	= { GENREG reg; ADDR off; } 2 off "(" reg ")" .
reginddef1 	= { GENREG reg; ADDR off; } 2 "*" off "(" reg ")" .
relative1	= { ADDR off; } 2 off.
reldef1		= { ADDR off; } 2 "*" off.

autodec	= { GENREG reg; } 2 "-(" reg ")".
autoinc	= { GENREG reg; } 2 "(" reg ")+".

ftoint		= { GENFREG reg; } 2 .
ftolong		= { GENFREG reg; } 4 .

regind4		= { GENREG reg; ADDR off; } 4 off "(" reg ")".
reginddef4	= { GENREG reg; ADDR off; } 4 "*" off "(" reg ")".
relative4	= { ADDR off; } 4 off.
reldef4		= { ADDR off; } 4 "*" off.
regdef4		= { GENREG reg; } 4 "*" reg.
regind8		= { GENREG reg; ADDR off; } 8 off "(" reg ")".
reginddef8	= { GENREG reg; ADDR off; } 8 "*" off "(" reg ")".
relative8	= { ADDR off; } 8 off.
reldef8		= { ADDR off; } 8 "*" off.
regdef8		= { GENREG reg; } 8 "*" reg.

label		= { ADDR off; } 2 off.

SETS

src2		= GENREG + regdef2 + regind2 + reginddef2 + relative2 +
		  reldef2 + addr_external + const2 + LOCAL + ILOCAL +
		  autodec + autoinc .
dst2		= src2 - ( const2 + addr_external ) .
xsrc2		= src2 + ftoint .
src1		= regdef1 + regind1 + reginddef1 + relative1 + reldef1 .
dst1		= src1 .
src1or2		= src1 + src2 .
src4		= relative4 + regdef4 + DLOCAL + regind4 .
dst4		= src4 .
long4		= src4 + REGPAIR .
longf4		= src4 + reldef4 + reginddef4 + FLTREG .
f4src		= longf4 + autoinc + autodec .
f4dst		= f4src .
long8		= relative8 + regdef8 + regind8 + DBLREG .
double8		= long8 + reldef8 + reginddef8 .

freg		= FLTREG + DBLREG .
fsrc		= FLTREG + double8  + autoinc + autodec .
fdst		= fsrc .

indexed2	= regind2 + reginddef2 .
indexed4	= regind4 .
indexed8	= regind8 .
indexed		= indexed2 + indexed4 + indexed8 .
regdeferred	= regdef2 + regdef4 + regdef8 .
indordef	= indexed + regdeferred .

locals		= LOCAL + DLOCAL .

variable2	= relative2 + reldef2 .
variable4	= relative4 .
variable8	= relative8 .
variable	= variable2 + variable4 + variable8 .

regs		= REG + REGPAIR + FLTREG + DBLREG .
noconst2	= src2 - const2 - addr_external .
allexeptcon	= ALL - ( regs + const2 + addr_local + addr_external ) .
externals	= relative1 + relative2 + relative4 + relative8 .
posextern	= variable + regdeferred + indexed + externals .
diradr2		= regconst2 + addr_external .

INSTRUCTIONS

/* default cost */

cost(2,450)

/* Normal instructions */

adc dst2:rw:cc .
add src2:ro,dst2:rw:cc .
ash src2:ro,REG:rw:cc .
ashc src2:ro,REGPAIR+ODDREG:rw kills :cc .
asl dst2:rw:cc .
asr dst2:rw:cc .
bxx "syntax error" label .	/* generic branch used only as bxx* */
bcc label .
bcs label .
beq label .
bge label .
bgt label .
bhi label .
bhis "bcc" label .
bic src2:ro,dst2:rw:cc .
bis src2:ro,dst2:rw:cc .
bisb src1or2:ro,REG:rw kills :cc .
bit src2:ro,src2:ro kills :cc.
ble label .
blo "bcs" label .
blos label .
blt label .
bmi label .
bne label .
bpl label .
br label .
bvc label .
bvs label .
clr dst2:wo:cc .
clrb dst1:wo kills :cc .
cmp src2:ro,src2:ro kills :cc .
cmpb src1or2:ro,src1or2:ro kills :cc .
com dst2:rw:cc .
dec dst2:rw:cc .
div src2:ro,REG:rw kills :cc .
inc dst2:rw:cc .
jbr label .
jeq label .
jne label .
jxx "syntax error" label .
jmp dst2+label .
jsr GENREG:rw,dst2+label kills :cc.
mov src2:ro,dst2:wo:cc .
movb src1or2:ro,dst1+REG:wo kills :cc .
mul src2:ro,ODDREG:rw:cc .
neg dst2:rw:cc .
rol dst2:rw:cc .
ror dst2:rw:cc .
rts GENREG:rw .
sbc dst2:rw:cc .
sob REG:rw,label .
sub src2:ro,dst2:rw:cc .
sxt dst2:wo .
tst src2:ro:cc .
xor REG:ro,dst2:rw:cc .

/* floating point instructions */

cfcc .
setf .
setd .
seti .
setl .
clrf fdst.
negf fdst .
absf fdst .
tstf fsrc .
movf fsrc,freg .
movf freg,fdst .
movif src2,freg .
movif src4,freg .
movfi freg,dst2 .
movfi freg,dst4 .
movof f4src,freg .
movfo freg,f4dst .
movie src2,freg .
movei freg,dst2 .
addf fsrc,freg .
subf fsrc,freg .
mulf fsrc,freg .
divf fsrc,freg .
cmpf fsrc,freg .
modf fsrc,FLTREGPAIR+DBLREGPAIR .
ldfps src2 .
stfps dst2 .
stst dst2 .

/* weirdo instructions */
mfpt kills r0 .

MOVES

from const2 %num==0 to dst2
gen clr %2

from src2 to dst2
gen mov %1,%2

from FLTREG to longf4-FLTREG
gen movfo %1,%2

from longf4-FLTREG to FLTREG
gen movof %1,%2

from FLTREG to FLTREG
gen movf %1,%2

from DBLREG to double8
gen movf %1,%2

from double8 to DBLREG
gen movf %1,%2

from const2 %num==0 to src1
gen clrb %2

from src1or2 to src1
gen movb %1,%2

from ftoint to dst2
gen movfi %1.reg,%2

TESTS

to test src2
gen tst %1

STACKINGRULES

from const2 %num==0 to STACK
gen clr {autodec,sp}

from src2 to STACK
gen mov %1,{autodec,sp}

from regconst2 to STACK
gen mov %1.reg,{autodec,sp}
    add {addr_external, %1.off},{regdef2,sp}

from addr_local to STACK
gen mov lb,{autodec,sp}
    add {const2, %1.ind},{regdef2,sp}

from DBLREG to STACK
gen movf %1,{autodec,sp}

from FLTREG  to STACK
gen movfo %1,{autodec,sp}

from REGPAIR to STACK
gen mov %1.2,{autodec,sp}
    mov %1.1,{autodec,sp}

from regind4 to STACK
gen mov {regind2, %1.reg, 2+%1.off},{autodec,sp}
    mov {regind2, %1.reg,   %1.off},{autodec,sp}

from relative4 to STACK
gen mov {relative2, 2+%1.off},{autodec,sp}
    mov {relative2,   %1.off},{autodec,sp}

from regdef4 to STACK
gen mov {regind2, %1.reg, 2},{autodec,sp}
    mov {regdef2, %1.reg   },{autodec,sp}

from regind8 to STACK
uses REG
gen move %1.reg,%a
    add {addr_external, 8+%1.off},%a
    mov {autodec, %a},{autodec,sp}
    mov {autodec, %a},{autodec,sp}
    mov {autodec, %a},{autodec,sp}
    mov {autodec, %a},{autodec,sp}

from regind8 to STACK
gen mov {regind2, %1.reg, 6+%1.off},{autodec,sp}
    mov {regind2, %1.reg, 4+%1.off},{autodec,sp}
    mov {regind2, %1.reg, 2+%1.off},{autodec,sp}
    mov {regind2, %1.reg,   %1.off},{autodec,sp}

from relative8 to STACK
uses REG
gen mov {addr_external, 8+%1.off},%a
    mov {autodec, %a},{autodec,sp}
    mov {autodec, %a},{autodec,sp}
    mov {autodec, %a},{autodec,sp}
    mov {autodec, %a},{autodec,sp}

from relative8 to STACK
gen mov {relative2, 6+%1.off},{autodec,sp}
    mov {relative2, 4+%1.off},{autodec,sp}
    mov {relative2, 2+%1.off},{autodec,sp}
    mov {relative2,   %1.off},{autodec,sp}

from regdef8 to STACK
gen mov {regind2, %1.reg, 6},{autodec,sp}
    mov {regind2, %1.reg, 4},{autodec,sp}
    mov {regind2, %1.reg, 2},{autodec,sp}
    mov {regdef2, %1.reg   },{autodec,sp}

from DLOCAL to STACK
gen mov {LOCAL, 2+%1.ind, 2},{autodec,sp}
    mov {LOCAL,   %1.ind, 2},{autodec,sp}

from src1 to STACK
gen clr {autodec,sp}
    movb %1,{regdef1,sp}

from ftoint to STACK
gen movfi %1.reg,{autodec,sp}

from ftolong to STACK
gen setl.
    movfi %1.reg,{autodec,sp}
    seti.

COERCIONS

from STACK
uses REG
gen mov {autoinc,sp},%a			yields %a

from STACK
uses REG
gen mov {autoinc,sp},%a			yields {regconst2, %a, 0}

from STACK
uses FLTREG
gen movof {autoinc,sp},%a		yields %a

from STACK
uses DBLREG
gen movf {autoinc,sp},%a		yields %a

from STACK
uses REGPAIR
gen mov {autoinc,sp},%a.1
    mov {autoinc,sp},%a.2		yields %a

from LOCAL				yields {regind2,lb,%1.ind}

from DLOCAL				yields {regind4,lb,%1.ind}

from regconst2
uses reusing %1,REG=%1.reg
gen add {addr_external, %1.off},%a	yields %a

from addr_local
uses REG
gen mov lb,%a
    add {const2, %1.ind},%a		yields %a

from REG				yields {regconst2, %1, 0}

from xsrc2
uses reusing %1, REG=%1			yields %a

from xsrc2
uses reusing %1, REG=%1			yields {regconst2, %a, 0}

from longf4
uses FLTREG
gen move  %1,%a				yields %a

from double8
uses DBLREG
gen move %1,%a				yields %a

from src1
uses REG={const2,0}
gen bisb %1,%a				yields %a

from REGPAIR				yields %1.2 %1.1

from regind4				yields {regind2,%1.reg,2+%1.off}
					       {regind2,%1.reg,%1.off}

from relative4				yields {relative2,2+%1.off}
					       {relative2,%1.off}

from regdef4				yields {regind2,%1.reg,2}
					       {regdef2,%1.reg}

from DLOCAL				yields {LOCAL, %1.ind+2, 2}
					       {LOCAL, %1.ind, 2}

/********************************
 * from double8 to long4        *
 ********************************/

from regind8				yields {regind4,%1.reg,4+%1.off}
					       {regind4,%1.reg,%1.off}

from relative8				yields {relative4,4+%1.off}
					       {relative4,%1.off}

from regdef8				yields {regind4,%1.reg,4}
					       {regdef4,%1.reg}

PATTERNS

/********************************************************
 * Group 1 : load instructions.                         *
 *                                                      *
 * For most load instructions no code is generated.     *
 * Action : put something on the fake-stack.            *
 ********************************************************/

pat loc					yields {const2, $1}

pat ldc					yields {const2, loww($1)}
					       {const2, highw($1)}

pat lol					yields {LOCAL, $1,2}

pat loe					yields {relative2, $1}

pat lil					yields {ILOCAL, $1}

pat lof
with REG				yields {regind2,%1,$1}
with exact regconst2 			yields {regind2,%1.reg,$1+%1.off}
with exact addr_external		yields {relative2,$1+%1.off}
with exact addr_local			yields {LOCAL, %1.ind + $1,2}

pat lal					yields {addr_local, $1}

pat lae					yields {addr_external, $1}

pat lpb						leaving adp SL

pat lxl $1==0				yields lb

pat lxl $1==1				yields {LOCAL ,SL,2}

pat lxl $1==2
uses REG={LOCAL, SL, 2}		yields {regind2,%a, SL}

pat lxl $1==3
uses REG={LOCAL, SL, 2}
gen move {regind2,%a, SL},%a		yields {regind2,%a, SL}

pat lxl $1>3
uses REG={LOCAL, SL, 2},
     REG={const2,$1-1}
gen 1:
    move {regind2,%a, SL},%a
    sob %b,{label,1b}			yields %a

pat lxa $1==0				yields {addr_local, SL}

pat lxa $1==1
uses REG={LOCAL, SL, 2 }		yields {regconst2, %a, SL }

pat lxa $1==2
uses REG={LOCAL, SL, 2 }
gen move {regind2, %a, SL }, %a		yields {regconst2, %a, SL }

pat lxa $1==3
uses REG={LOCAL, SL, 2 }
gen move {regind2, %a, SL }, %a
    move {regind2, %a, SL }, %a		yields {regconst2, %a, SL }

pat lxa $1 > 3
uses REG={LOCAL, SL, 2},
     REG={const2,$1-1}
gen 1:
    move {regind2,%a, SL},%a
    sob %b,{label,1b}			yields {regconst2, %a, SL }

pat dch						leaving loi 2

pat loi $1==2
with REG				yields {regdef2, %1}
with exact regconst2			yields {regind2, %1.reg, %1.off}
with exact relative2			yields {reldef2, %1.off}
with exact regind2			yields {reginddef2, %1.reg, %1.off}
with exact regdef2			yields {reginddef2, %1.reg, 0}
with exact addr_local			yields {LOCAL, %1.ind,2}
with exact addr_external		yields {relative2, %1.off}
with exact LOCAL			yields {reginddef2, lb, %1.ind}

pat loi $1==1
with REG				yields {regdef1, %1}
with exact regconst2			yields {regind1, %1.reg, %1.off}
with exact addr_external		yields {relative1, %1.off}
with exact addr_local			yields {regind1, lb, %1.ind}
with exact relative2			yields {reldef1, %1.off}
with exact regind2			yields {reginddef1, %1.reg, %1.off}
with exact regdef2			yields {reginddef1, %1.reg, 0}
with exact LOCAL			yields {reginddef1, lb, %1.ind}

pat loi $1==4
with REG				yields {regdef4, %1}
with exact regconst2			yields {regind4, %1.reg, %1.off}
with exact addr_local			yields {DLOCAL,%1.ind,4}
with exact addr_external		yields {relative4, %1.off}

pat loi $1==8
with REG				yields {regdef8, %1}
with exact regconst2			yields {regind8, %1.reg, %1.off}
with exact addr_local			yields {regind8, lb , %1.ind}
with exact addr_external		yields {relative8, %1.off}

pat loi
with exact addr_local
  kills ALL
  uses REG={const2,$1/2}, REG
  gen move lb,%b
      add {const2,%1.ind+$1},%b
      1:
      mov {autodec,%b},{autodec,sp}
      sob %a,{label,1b}
with exact addr_external
  kills ALL
  uses REG={const2,$1/2}, REG
  gen mov {addr_external,%1.off+$1},%b
      1:
      mov {autodec,%b},{autodec,sp}
      sob %a,{label,1b}
with REG
  kills ALL
  uses REG={const2,$1}
  gen add %a,%1
      asr %a
      1:
      mov {autodec,%1},{autodec,sp}
      sob %a,{label,1b}


pat ldl					yields {DLOCAL, $1,4}
pat lde					yields {relative4, $1}
pat ldf
with regconst2				yields {regind4,%1.reg,$1+%1.off}
with exact addr_external		yields {relative4, $1+%1.off}
with exact addr_local			yields {DLOCAL, %1.ind+$1,4}

pat lpi					yields {addr_external, $1}

/****************************************************************
 * Group 2 : Store instructions.                                *
 *                                                              *
 * These instructions are likely to ruin the fake-stack.        *
 * We don't expect many items on the fake-stack anyway          *
 * because we seem to have evaluated an expression just now.    *
 ****************************************************************/

pat stl		with xsrc2
kills indordef, locals %ind <= $1 && %ind+%size > $1
gen move %1,{LOCAL,$1,2}

pat ste		with xsrc2
kills posextern
gen move %1, {relative2, $1 }

pat sil		with xsrc2
kills allexeptcon
gen move %1, {reginddef2,lb,$1}

pat stf
with regconst2 xsrc2
  kills allexeptcon
  gen move %2,{regind2,%1.reg,$1+%1.off}
with addr_external xsrc2
  kills allexeptcon
  gen move %2,{relative2,$1+%1.off}

pat sti $1==2
with REG xsrc2
  kills allexeptcon
  gen move%2,{regdef2,%1}
with regconst2 xsrc2
  kills allexeptcon
  gen move%2,{regind2,%1.reg,%1.off}
with addr_external xsrc2
  kills allexeptcon
  gen move %2,{relative2,%1.off}
with addr_local xsrc2
  kills allexeptcon
  gen move %2,{LOCAL, %1.ind, 2}
with relative2 xsrc2
  kills allexeptcon
  gen move %2,{reldef2,%1.off}
with regind2 xsrc2
  kills allexeptcon
  gen move %2,{reginddef2,%1.reg,%1.off}

pat sti $1==1
with REG src1or2
  kills allexeptcon
  gen move %2,{regdef1,%1}
with exact regconst2 src1or2
  kills allexeptcon
  gen move %2,{regind1,%1.reg,%1.off}
with exact addr_external src1or2
  kills allexeptcon
  gen move %2,{relative1,%1.off}
with exact addr_local src1or2
  kills allexeptcon
  gen move %2,{regind1, lb, %1.ind}
with exact relative2 src1or2
  kills allexeptcon
  gen move %2,{reldef1,%1.off}
with exact regind2 src1or2
  kills allexeptcon
  gen move %2,{reginddef1,%1.reg,%1.off}

pat sti $1==4
with exact REG FLTREG
  kills allexeptcon
  gen movfo %2,{regdef4,%1}
with exact regind2 FLTREG
  kills allexeptcon
  gen movfo %2,{reginddef4,%1.reg,%1.off}
with exact relative2 FLTREG
  kills allexeptcon
  gen movfo %2,{reldef4,%1.off}
with exact REG ftolong
  kills allexeptcon
  gen setl.
      movfi %2.reg,{regdef2,%1}
      seti.
with exact regind2 ftolong
  kills allexeptcon
  gen setl.
      movfi %2.reg,{reginddef2,%1.reg,%1.off}
      seti.
with exact relative2 ftolong
  kills allexeptcon
  gen setl.
      movfi %2.reg,{reldef2,%1.off}
      seti.
with exact regconst2 FLTREG
  kills allexeptcon
  gen movfo %2,{regind4,%1.reg,%1.off}
with exact regconst2 ftolong
  kills allexeptcon
  gen setl.
      movfi %2.reg,{regind2,%1.reg,%1.off}
      seti.
with exact addr_local FLTREG
  kills allexeptcon
  gen movfo %2,{DLOCAL,%1.ind,4}
with exact addr_local ftolong
  kills allexeptcon
  gen setl.
      movfi %2.reg,{DLOCAL,%1.ind,4}
      seti.
with exact addr_external FLTREG
  kills allexeptcon
  gen movfo %2,{relative4,%1.off}
with exact addr_external ftolong
  kills allexeptcon
  gen setl.
      movfi %2.reg,{relative2,%1.off}
      seti.
with REG src2 src2
  kills allexeptcon
  gen move %2,{regdef2,%1}
      move %3,{regind2,%1,2}
with REG STACK
  gen mov {autoinc,sp},{autoinc,%1}
      mov {autoinc,sp},{regdef2,%1}

pat sti $1==8
with exact REG DBLREG
  kills allexeptcon
  gen movf %2,{regdef8,%1}
with exact regind2 DBLREG
  kills allexeptcon
  gen movf %2,{reginddef8,%1.reg,%1.off}
with exact relative2 DBLREG
  kills allexeptcon
  gen movf %2,{reldef8,%1.off}
with exact regconst2 DBLREG
  kills allexeptcon
  gen movf %2,{regind8,%1.reg,%1.off}
with exact addr_local DBLREG
  kills allexeptcon
  gen movf %2,{regind8, lb, %1.ind}
with exact addr_external DBLREG
  kills allexeptcon
  gen movf %2,{relative8, %1.off}
with REG regind8
  kills allexeptcon
  gen mov {regind2,%2.reg,%2.off  },{autoinc,%1}
      mov {regind2,%2.reg,%2.off+2},{autoinc,%1}
      mov {regind2,%2.reg,%2.off+4},{autoinc,%1}
      mov {regind2,%2.reg,%2.off+6},{regdef2,%1}
with REG relative8
  kills allexeptcon
  uses REG={addr_external,%2.off}
  gen mov {autoinc,%a},{autoinc,%1}
      mov {autoinc,%a},{autoinc,%1}
      mov {autoinc,%a},{autoinc,%1}
      mov {regdef2,%a},{regdef2,%1}
with REG STACK
  gen mov {autoinc,sp},{autoinc,%1}
      mov {autoinc,sp},{autoinc,%1}
      mov {autoinc,sp},{autoinc,%1}
      mov {autoinc,sp},{regdef2,%1}

pat sti
with REG STACK
uses REG={const2,$1/2}
gen 1:
    mov {autoinc,sp},{autoinc,%1}
    sob %a,{label,1b}

pat lal sti $2>2 && $2<=8
with exact xsrc2
  yields %1
  leaving stl $1 lal $1+2 sti $2-2
with
  yields {addr_local,$1}
  leaving sti $2

pat sdl
with exact FLTREG
  kills	indordef, locals %ind <= $1+2 && %ind+%size > $1
  gen move %1,{DLOCAL,$1,4}
with exact ftolong
  kills indordef, locals %ind <= $1+2 && %ind+%size > $1
  gen setl.
      movfi %1.reg,{DLOCAL,$1,4}
      seti.
with  src2 src2
  kills indordef, locals %ind <= $1+2 && %ind+%size > $1
  gen move %1,{LOCAL,$1,2}
			move %2,{LOCAL,$1+2,2}

pat sde
with exact FLTREG
  kills posextern
  gen move %1,{relative4,$1}
with exact ftolong
  kills posextern
  gen setl.
      movfi %1.reg,{relative4,$1}
      seti.
with src2 src2
  kills posextern
  gen move %1, {relative2, $1 }
      move %2, {relative2, $1+2}

pat sdf
with exact regconst2 FLTREG
  kills allexeptcon
  gen move %2,{regind4,%1.reg,$1+%1.off}
with exact regconst2 ftolong
  kills allexeptcon
  gen setl.
      movfi %2.reg,{regind4,%1.reg,$1+%1.off}
      seti.
with exact addr_external FLTREG
  kills allexeptcon
  gen move %2,{relative4,$1+%1.off}
with exact addr_external ftolong
  kills allexeptcon
  gen setl.
      movfi %2.reg,{relative4, $1+%1.off}
      seti.
with regconst2 src2 src2
  kills allexeptcon
  gen move %2,{regind2,%1.reg,$1+%1.off}
      move %3,{regind2,%1.reg,$1+2+%1.off}
with addr_external src2 src2
  kills allexeptcon
  gen move %2,{relative2,$1+%1.off}
      move %3,{relative2,$1+2+%1.off}

/****************************************************************
 * Group 3 : Integer arithmetic.                                *
 *                                                              *
 * Implemented (sometimes with the use of subroutines) :        *
 * all 2 and 4 byte arithmetic.                         	*
 ****************************************************************/

pat adi $1==2
with exact REG const2			yields {regconst2,%1,%2.num}
with exact REG addr_external		yields {regconst2,%1,%2.off}
with exact REG addr_local
  gen add lb,%1				yields {regconst2,%1,%2.ind}
with exact REG addr_local
  uses REG
  gen mov lb,%a
      add %1,%a				yields {regconst2,%a,%2.ind}
with exact REG regconst2
  gen add %2.reg,%1			yields {regconst2,%1,%2.off}
with exact src2-REG const2+addr_external+addr_local
  uses reusing %1,REG=%1		yields %2 %a
						leaving adi 2
with exact regconst2 const2		yields {regconst2,%1.reg,%2.num+%1.off}
with exact regconst2 addr_external	yields {regconst2,%1.reg,%2.off+%1.off}
with exact regconst2 addr_local
  gen add lb,%1.reg			yields {regconst2,%1.reg,%2.ind+%1.off}
with exact regconst2 regconst2
  gen add %2.reg,%1.reg			yields {regconst2,%1.reg,%2.off+%1.off}
with exact regconst2 noconst2
  gen add %2,%1.reg			yields %1
with exact REG noconst2
  gen add %2,%1				yields %1
with exact src2 regconst2
  gen add %1,%2.reg			yields %2
with exact regconst2 src2
  gen add %2,%1.reg			yields %1
with src2 REG
  gen add %1,%2				yields %2

pat adi $1==4
with REG REG src2 src2
  gen add %4,%2
      adc %1
      add %3,%1				yields %2 %1
with REG REG src2 STACK
  gen add {autoinc,sp},%2
      adc %1
      add %3,%1				yields %2 %1
with REG REG STACK
  gen add {autoinc,sp},%1
      add {autoinc,sp},%2
      adc %1				yields %2 %1
with src2 src2 REG REG
  gen add %2,%4
      adc %3
      add %1,%3				yields %4 %3 

pat sbi $1==2
with src2 REG
  gen sub %1,%2				yields %2
with exact REG src2-REG
  gen sub %2,%1
      neg %1				yields %1

pat sbi $1==4
with src2-REG src2-REG REG REG
  gen sub %2,%4
      sbc %3
      sub %1,%3				yields %4 %3
with src2 src2 STACK
  gen sub %2,{regind2,sp,2}
      sbc {regdef2,sp}
      sub %1,{regdef2,sp}

pat mli $1==2
with ODDREG src2
  gen mul %2,%1				yields %1
with src2 ODDREG
  gen mul %1,%2				yields %2

pat mli $1==4
with STACK
  gen jsr pc,{label, "mli4~"}		yields r1 r0

pat dvi $1==2
with src2 src2
  uses reusing %2,REGPAIR
  gen mov %2,%a.2
      sxt %a.1
      div %1,%a.1			yields %a.1
with src2 src2 STACK
  gen mov %1,{autodec,sp}
      mov %2,r1
      sxt r0
      div {autoinc,sp},r0		yields r0

pat dvi $1==4
with STACK
  gen jsr pc,{label, "dvi4~"}		yields r1 r0

pat rmi $1==2
with src2 src2
  uses reusing %2,REGPAIR
  gen mov %2,%a.2
      sxt %a.1
      div %1,%a.1			yields %a.2 
with src2 src2 STACK
  gen mov %1,{autodec,sp}
      mov %2,r1
      sxt r0
      div {autoinc,sp},r0		yields r1

pat rmi $1==4
with STACK
gen jsr pc,{label, "rmi4~"}		yields r1 r0 

pat ngi $1==2
with REG
gen neg %1				yields %1

pat ngi $1==4
with REG REG
gen neg %1
    neg %2
    sbc %1				yields %2 %1

pat loc sli $1==1 && $2==2
with REG
gen asl %1				yields %1

pat sli $1==2
with src2 REG
gen ash %1,%2				yields %2

pat sli $1==4
with src2 REGPAIR
gen ashc %1,%2				yields %2  

pat loc sri $1==1 && $2==2
with REG
gen asr %1				yields %1

pat loc sri $2==2
with REG
gen ash {const2,0-$1},%1		yields %1

pat sri $1==2
with REG REG
gen neg %1
    ash %1,%2				yields %2

pat loc sri $2==4
with REGPAIR
gen ashc {const2,0-$1},%1		yields %1

pat sri $1==4
with REG REGPAIR
gen neg %1
    ashc %1,%2				yields %2  

/************************************************
 * Group 4 : unsigned arithmetic                *
 *                                              *
 * adu = adi                                    *
 * sbu = sbi                                    *
 * slu = sli                                    *
 *                                              *
 * Supported : 2- and 4 byte arithmetic.        *
 ************************************************/

pat adu						leaving adi $1
pat sbu						leaving sbi $1
pat mlu $1==2					leaving mli 2

pat mlu $1==4
with STACK
gen jsr pc,{label, "mlu4~"}		yields r1 r0 

pat dvu $1==2
with STACK
gen jsr pc,{label, "dvu2~"}		yields r0

pat dvu $1==4
with STACK
gen jsr pc,{label, "dvu4~"}		yields r1 r0

pat rmu $1==2
with STACK
gen jsr pc,{label, "rmu2~"}		yields r1

pat rmu $1==4
with STACK
gen jsr pc,{label, "rmu4~"}		yields r1 r0 

pat slu						leaving sli $1

pat sru $1==2
with REG xsrc2
uses reusing %2,REGPAIR
gen move %2,%a.2
    move {const2,0},%a.1
    neg %1
    ashc %1,%a				yields %a.2

pat loc sru $2==2
with xsrc2
uses reusing %1,REGPAIR
gen move %1,%a.2
    move {const2,0},%a.1
    ashc {const2,0-$1},%a		yields %a.2

pat sru $1==4
with STACK
gen move {const2,$1},r0
    jsr pc,{label, "sru~"}

/************************************************
 * Group 5 : Floating point arithmetic          *
 *                                              *
 * Supported : 4- and 8 byte arithmetic.        *
 ************************************************/

pat adf $1==4
with FLTREG FLTREG
  gen addf %1,%2			yields %2
with FLTREG FLTREG
  gen addf %2,%1			yields %1

pat adf $1==8
with double8 DBLREG
  gen addf %1,%2			yields %2
with DBLREG double8
gen addf %2,%1				yields %1

pat sbf $1==4
with FLTREG FLTREG
gen subf %1,%2				yields %2

pat sbf $1==8
with double8 DBLREG
gen subf %1,%2				yields %2

pat mlf $1==4
with FLTREG FLTREG
  gen mulf %1,%2			yields %2
with FLTREG FLTREG
  gen mulf %2,%1			yields %1

pat mlf $1==8
with double8 DBLREG
  gen mulf %1,%2			yields %2
with DBLREG double8
  gen mulf %2,%1			yields %1

pat dvf $1==4
with FLTREG FLTREG
gen divf %1,%2				yields %2

pat dvf $1==8
with double8 DBLREG
gen divf %1,%2				yields %2

pat ngf $1==4
with FLTREG
gen negf %1				yields %1

pat ngf $1==8
with DBLREG
gen negf %1				yields %1

pat fif $1==4
with longf4 FLTREG
uses FLTREGPAIR
gen move %1,%a.1
    modf %2,%a			yields %a.1 %a.2

pat fif $1==8
with double8 double8
uses DBLREGPAIR
gen move %1,%a.1
    modf %2,%a			yields %a.1 %a.2

pat fef $1==4
with FLTREG
uses REG
gen movei %1,%a
    movie {const2,0},%1		yields %1 %a

pat fef $1==8
with DBLREG
uses REG
gen movei %1,%a
    movie {const2,0},%1		yields %1 %a

/****************************************
 * Group 6 : pointer arithmetic.        *
 *                                      *
 * Pointers have size 2 bytes.          *
 ****************************************/

pat adp
with REG			yields {regconst2, %1, $1} 
with exact regconst2		yields {regconst2, %1.reg, $1+%1.off}    
with exact addr_external	yields {addr_external, $1+%1.off} 
with exact addr_local		yields {addr_local,%1.ind+$1}

pat ads $1==2				leaving adi 2
pat sbs $1==2				leaving sbi $1

/****************************************
 * Group 7 : increment/decrement/zero   *
 ****************************************/

pat inc
with REG
gen inc %1			yields %1 

pat inl
kills indordef, locals %ind <= $1 && %ind+%size > $1
gen inc {LOCAL,$1,2}

pat ine
kills posextern
gen inc {relative2, $1}

pat dec
with REG
gen dec %1			yields %1

pat del
kills indordef, locals %ind <= $1 && %ind+%size > $1
gen dec {LOCAL, $1, 2}

pat dee
kills posextern
gen dec {relative2, $1}

pat lol loc sbi stl $1==$4 && $3==2 
kills indordef, locals %ind <= $1 && %ind+%size > $1
gen sub {const2,$2},{LOCAL,$1,2}

pat lol ngi stl $1==$3 && $2==2 
kills indordef, locals %ind <= $1 && %ind+%size > $1
gen neg {LOCAL, $1, 2}

pat lil ngi sil $1==$3 && $2==2
kills allexeptcon
gen neg {ILOCAL, $1}

pat lil inc sil $1==$3
kills allexeptcon
gen inc {ILOCAL, $1}

pat lol adi stl $2==2 && $1==$3
with src2
kills indordef, locals %ind <= $1 && %ind+%size > $1
gen add %1,{LOCAL, $1, 2}

pat lol adp stl $1==$3 && $2==1 
kills indordef, locals %ind <= $1 && %ind+%size > $1
gen inc {LOCAL, $1, 2}

pat lol adp stl $1==$3 
kills indordef, locals %ind <= $1 && %ind+%size > $1
gen add {const2, $2},{LOCAL, $1, 2}

pat loe adi ste $2==2 && $1==$3
with src2
kills posextern
gen add %1,{relative2, $1}

pat loe adp ste $1==$3 
kills posextern
gen add {const2, $2},{relative2, $1}

pat lol ior stl $2==2 && $1==$3
with src2
kills indordef, locals %ind <= $1 && %ind+%size > $1
gen bis %1,{LOCAL, $1, 2}

pat loe ior ste $2==2 && $1==$3
with src2
kills posextern
gen bis %1,{relative2, $1}

pat lol and stl $2==2 && $1==$3
with REG
kills indordef, locals %ind <= $1 && %ind+%size > $1
gen com %1
    bic %1,{LOCAL, $1, 2}

pat loe and ste $2==2 && $1==$3
with REG
kills posextern
gen com %1
    bic %1,{relative2, $1}

pat loc lol and stl $3==2 && $2==$4 
kills indordef, locals %ind <= $2 && %ind+%size > $2
gen bic {const2, ~$1},{LOCAL, $2, 2}

pat loc loe and ste $3==2 && $2==$4 
kills posextern
gen bic {const2, ~$1},{relative2, $2}

pat zrl
kills indordef, locals %ind <= $1 && %ind+%size > $1
gen clr {LOCAL, $1, 2}

pat zre
kills posextern
gen clr {relative2, $1}

pat zrf $1==4
uses FLTREG
gen clrf %a				yields %a

pat zrf $1==8
uses DBLREG
gen clrf %a				yields %a

pat zer $1==2				yields {const2, 0}                   
pat zer $1==4				yields {const2,0} {const2,0}     
pat zer $1==6				yields {const2,0} {const2,0} {const2,0}
pat zer $1==8				yields {const2,0} {const2,0}
				       		{const2,0} {const2,0}        
pat zer defined($1)
with STACK
gen move {const2,$1/2},r0
    1:
    clr {autodec,sp}
    sob r0,{label, 1b}

/****************************************
 * Group 8 : Convert instructions       *
 ****************************************/

pat cii
with STACK
gen jsr pc,{label, "cii~"}

pat cfi						leaving cfu
pat ciu						leaving cuu
pat cui						leaving cuu

pat cfu
with STACK
gen jsr pc,{label, "cfi~"}

pat cif
with STACK
gen jsr pc,{label, "cif~"}

pat cuf
with STACK
gen jsr pc,{label, "cuf~"}

pat cff
with STACK
gen jsr pc,{label, "cff~"}

pat cuu
with STACK
gen jsr pc,{label, "cuu~"}

pat loc loc cii $1==1 && $2==2
with src1or2
uses reusing %1,REG
gen movb %1,%a				yields %a

pat loc loc cii $1==1 && $2==4
with src1or2
uses reusing %1,REG,REG
gen movb %1,%a
    sxt %b				yields %a %b

pat loc loc cii $1==2 && $2==4
with src2
uses reusing %1,REG,REG
gen move %1,%a
    test %a
    sxt %b				yields %a %b

pat loc loc loc cii $1>=0 && $2==2 && $3==4	leaving loc $1 loc 0

pat loc loc loc cii $1< 0 && $2==2 && $3==4	leaving loc $1 loc 0-1

pat loc loc cii $1==4 && $2==2
with src2

pat loc loc cuu $1==2 && $2==4			leaving loc 0

pat loc loc cuu $1==4 && $2==2
with src2

pat loc loc cfi					leaving loc $1 loc $2 cfu

pat loc loc cfu $1==4 && $2==2
with FLTREG				yields {ftoint,%1}

pat loc loc cfu $1==4 && $2==4
with FLTREG				yields {ftolong,%1}

pat loc loc cfu $1==8 && $2==2
with DBLREG				yields {ftoint,%1.1} 

pat loc loc cfu $1==8 && $2==4
with DBLREG				yields {ftolong,%1.1}

pat loc loc cif $1==2 && $2==4
with src2
uses FLTREG
gen movif %1,%a				yields %a

pat loc loc cif $1==2 && $2==8
with src2
uses DBLREG
gen movif %1,%a				yields %a

pat loc loc cif $1==4 && $2==4
with exact long4-REGPAIR
  uses FLTREG
  gen setl.
      movif %1,%a
      seti.				yields %a  
with STACK
  uses FLTREG
  gen setl.
      movif {autoinc,sp},%a
      seti.				yields %a

pat loc loc cif $1==4 && $2==8
with exact long4-REGPAIR
  uses DBLREG
  gen setl.
      movif %1,%a
      seti.				yields %a  
with STACK
  uses DBLREG
  gen setl.
      movif {autoinc,sp},%a
      seti.				yields %a

pat loc loc cuf $1==2 && $2==4      
with STACK
uses FLTREG
gen clr {autodec,sp}
    setl.
    movif {autoinc,sp},%a
    seti.				yields %a

pat loc loc cuf $1==2 && $2==8
with STACK
uses DBLREG
gen clr {autodec,sp}
    setl.
    movif {autoinc,sp},%a
    seti.				yields %a

pat loc loc cuf $1==4				leaving loc $1 loc $2 cif

pat loc loc cff $1==4 && $2==8
with longf4 - FLTREG
  uses DBLREG
  gen movof %1,%a			yields %a
with FLTREG
  uses DBLREG
  gen move %1,%a.1			yields %a

pat loc loc cff $1==8 && $2==4
with DBLREG				yields %1.1

/****************************************
 * Group 9 : Logical instructions       *
 ****************************************/

pat and $1==2
with const2 REG
  gen bic {const2,~%1.num},%2		yields %2
with REG const2
  gen bic {const2,~%2.num},%1		yields %1
with REG REG
  gen com %1
      bic %1,%2				yields %2

pat and defined($1)
with STACK
gen move {const2,$1}, r0
    jsr pc,{label, "and~"}

pat ior $1==2
with REG src2
  gen bis %2,%1				yields %1
with src2 REG
  gen bis %1,%2				yields %2

pat ior $1==8
with exact src2 src2 src2 src2 STACK
  gen bis %1,{regdef2,sp}
      bis %2,{regind2,sp,2}
      bis %3,{regind2,sp,4}
      bis %4,{regind2,sp,6}
with STACK
uses REG={const2,$1}
  gen add sp,%a
      bis {autoinc,sp},{autoinc,%a}
      bis {autoinc,sp},{autoinc,%a}
      bis {autoinc,sp},{autoinc,%a}
      bis {autoinc,sp},{autoinc,%a}

pat ior defined($1)
with STACK
uses REG={const2,$1},REG={const2,$1/2}
gen add sp,%a
    1:
    bis {autoinc,sp},{autoinc,%a}
    sob %b,{label,1b}

pat xor $1==2
with REG REG
  gen xor %1,%2				yields %2
with REG REG
  gen xor %2,%1				yields %1

pat xor defined($1)
with STACK
gen move {const2,$1},r0
    jsr pc,{label, "xor~"}

pat com $1==2
with REG
gen com %1				yields %1

pat com defined($1)
with STACK
uses REG={const2,$1/2},REG
gen mov sp,%b
    1:
    com {autoinc,%b}
    sob %a,{label,1b}

pat rol $1==2
with const2 ODDREG
  gen ashc {const2,%1.num-16},%2	yields %2
with REG ODDREG
  gen sub {const2,16},%1
      ashc %1,%2			yields %2

pat rol defined($1)
with STACK
gen move {const2,$1},r0
    jsr pc,{label, "rol~"}

pat ror $1==2
with const2 ODDREG
  gen ashc {const2,0-%1.num},%2		yields %2
with REG ODDREG
  gen neg %1
      ashc %1,%2			yields %2

pat ror defined($1)
with STACK
gen move {const2,$1},r0
    jsr pc,{label, "ror~"}

pat com and $1==2 && $2==2
with src2 REG
gen bic %1,%2				yields %2

pat com and $1==$2
with STACK
uses REG={const2,$1},REG
gen mov sp,%b
    add %a,%b
    asr %a
    1:
    bic {autoinc,sp},{autoinc,%b}
    sob %a,{label,1b}

/********************************
 * Group 10 : Set instructions  *
 ********************************/

pat inn $1==2
with REG REG
gen neg %1
    ash %1,%2
    bic {const2,0177776},%2		yields %2

pat loc inn $2==2 && $1==0
with REG
gen bic {const2,0177776},%1		yields %1

pat loc inn $2==2 && $1==1
with REG
gen asr %1
    bic {const2,0177776},%1		yields %1

pat loc inn $2==2
with REG
gen ash {const2,0-$1},%1
    bic {const2,0177776},%1		yields %1

pat loc inn zeq $2==2			yields {const2, 1<<$1}
						leaving and 2 zeq $3

pat inn zeq $1==2
with src2
uses REG={const2,1}
gen ash %1,%a				yields %a
						leaving and 2 zeq $2

pat loc inn zne $2==2			yields {const2, 1<<$1}
						leaving and 2 zne $3

pat inn zne $1==2
with src2
uses REG={const2,1}
gen ash %1,%a				yields %a
						leaving and 2 zne $2

pat inn defined($1)
with src2 STACK
gen move %1,r1
    move {const2,$1},r0
    jsr pc,{label, "inn~"}		yields r0

pat set $1==2
with REG
uses REG={const2,1}
gen ash %1,%a				yields %a

pat set defined($1)
with src2 STACK
gen move %1,r1
    move {const2,$1},r0
    jsr pc,{label, "set~"}

/****************************************
 * Group 11 : Array instructions        *
 ****************************************/

pat lae aar $2==2 && rom($1,3)==1 && rom($1,1)==0 leaving adi 2
pat lae aar $2==2 && rom($1,3)==1 && rom($1,1)!=0 leaving adi 2 adp 0-rom($1,1)

pat lae aar $2==2 && rom($1,3)==2 && rom($1,1)==0
with REG
gen asl %1				yields %1 leaving adi 2

pat lae aar $2==2 && rom($1,3)==2 && rom($1,1)!=0
with REG
gen asl %1				yields {regconst2,%1,(0-2)*rom($1,1)}
						leaving adi 2

pat lae aar $2==2 && rom($1,3)==4 && rom($1,1)==0
with REG
gen ash {const2,2},%1			yields %1 leaving adi 2

pat lae aar $2==2 && rom($1,3)==4 && rom($1,1)!=0
with REG
gen ash {const2,2},%1			yields {regconst2,%1,(0-4)*rom($1,1)}
						leaving adi 2

pat lae aar $2==2 && rom($1,3)==8 && rom($1,1)==0
with REG
gen ash {const2,3},%1			yields %1
						leaving adi 2

pat lae aar $2==2 && rom($1,3)==8 && rom($1,1)!=0
with REG
gen ash {const2,3},%1			yields {regconst2,%1,(0-8)*rom($1,1)}
						leaving adi 2

pat lae aar $2==2 && rom($1,1)==0
with ODDREG
gen mul {const2,rom($1,3)},%1		yields %1 leaving adi 2

pat lae aar $2==2 && defined(rom($1,1))
with ODDREG
gen mul {const2,rom($1,3)},%1		yields {regconst2,%1,(0-rom($1,3))*rom($1,1)}
						leaving adi 2

pat aar $1==2
with STACK
gen mov {autoinc,sp},r0
    mov {autoinc,sp},r1
    jsr pc,{label, "aar~"}

pat lae sar defined(rom($1,3))		leaving lae $1 aar $2 sti rom($1,3)
pat lae lar defined(rom($1,3))		leaving lae $1 aar $2 loi rom($1,3)
pat sar $1==2
with STACK
gen mov {autoinc,sp},r0
    mov {autoinc,sp},r1
    jsr pc,{label, "sar~"}

pat lar $1==2
with STACK
gen mov {autoinc,sp},r0
    mov {autoinc,sp},r1
    jsr pc,{label, "lar~"}

/****************************************
 * group 12 : Compare instructions      *
 ****************************************/

pat cmi $1==2
with src2 REG
  gen sub %1,%2				yields %2
with REG src2
  gen sub %2,%1
      neg %1				yields %1

pat cmi $1==4
with STACK
gen jsr pc,{label, "cmi4~"}		yields r0

pat cmf defined($1)
with STACK
gen move {const2,$1},r0
    jsr pc,{label, "cmf~"}		yields r0

pat cmu $1==2					leaving cmp

pat cmu $1==4
with STACK
gen jsr pc,{label, "cmu4~"}		yields r0

pat cmu defined($1)
with STACK
gen move {const2,$1},r0
    jsr pc,{label, "cmu~"}		yields r0

pat cms $1==2					leaving cmi $1

pat cms defined($1)
with STACK
gen move {const2,$1},r0
    jsr pc,{label, "cms~"}		yields r0
pat cmp
with src2 src2
uses REG = {const2,0}
gen cmp %1,%2
    beq {label,2f}
    bhi {label,1f}
    inc %a
    br {label,2f}
    1:
    dec %a
    2:					yields %a

proc txxand
with src2 REG
gen test %1
    bxx* {label,1f}
    clr %2
    1:					yields %2

proc txxior
with src2 REG
gen test %1
    bxx* {label,1f}
    bis {const2,1},%2
    1:					yields %2

proc txx
with src2
uses REG={const2,0}
gen test %1
    bxx* {label,1f}
    inc %a
    1:					yields %a

pat tlt and $2==2	call txxand("blt")
pat tle and $2==2	call txxand("ble")
pat teq and $2==2	call txxand("beq")
pat tne and $2==2	call txxand("bne")
pat tgt and $2==2	call txxand("bgt")
pat tge and $2==2	call txxand("bge")

pat tlt ior $2==2	call txxior("bge")
pat tle ior $2==2	call txxior("bgt")
pat teq ior $2==2	call txxior("bne")
pat tne ior $2==2	call txxior("beq")
pat tgt ior $2==2	call txxior("ble")
pat tge ior $2==2	call txxior("blt")

pat tlt			call txx("bge")
pat tle			call txx("bgt")
pat teq			call txx("bne")
pat tne			call txx("beq")
pat tgt			call txx("ble")
pat tge			call txx("blt")

proc andtxx
with src2 src2
uses REG={const2,0}
gen bit %1,%2
    bxx* {label,1f}
    inc %a
    1:					yields %a

pat and tne $1==2		call andtxx("beq")
pat and teq $1==2		call andtxx("bne")

proc cmitxxand
with src2 src2 REG
gen cmp %2,%1
    bxx* {label,1f}
    clr %3
    1:					yields %3

proc cmitxxior
with src2 src2 REG
gen cmp %2,%1
    bxx* {label,1f}
    bis {const2,1},%3
    1:					yields %3

proc cmitxx
with src2 src2
uses REG={const2,0}
gen cmp %2,%1
    bxx* {label,1f}
    inc %a
    1:					yields %a

pat cmi tlt and $1==2 && $3==2	call cmitxxand("blt")
pat cmi tle and $1==2 && $3==2	call cmitxxand("ble")
pat cmi teq and $1==2 && $3==2	call cmitxxand("beq")
pat cmi tne and $1==2 && $3==2	call cmitxxand("bne")
pat cmi tgt and $1==2 && $3==2	call cmitxxand("bgt")
pat cmi tge and $1==2 && $3==2	call cmitxxand("bge")

pat cmi tlt ior $1==2 && $3==2	call cmitxxior("bge")
pat cmi tle ior $1==2 && $3==2	call cmitxxior("bgt")
pat cmi teq ior $1==2 && $3==2	call cmitxxior("bne")
pat cmi tne ior $1==2 && $3==2	call cmitxxior("beq")
pat cmi tgt ior $1==2 && $3==2	call cmitxxior("ble")
pat cmi tge ior $1==2 && $3==2	call cmitxxior("blt")

pat cmi tlt $1==2		call cmitxx("bge")
pat cmi tle $1==2		call cmitxx("bgt")
pat cmi teq $1==2		call cmitxx("bne")
pat cmi tne $1==2		call cmitxx("beq")
pat cmi tgt $1==2		call cmitxx("ble")
pat cmi tge $1==2		call cmitxx("blt")

pat loc cmi teq and $1>=0 && $1<=127 && $2==2 && $4==2
with exact src1 REG
  gen cmpb %1,{const2,$1}
      beq {label,1f}
      clr %2
      1:				yields %2
with					yields {const2, $1}
						leaving cmi 2 teq and 2

pat loc cmi teq ior $1>=0 && $1<=127 && $2==2 && $4==2
with exact src1 REG
  gen cmpb %1,{const2,$1}
      bne {label,1f}
      bis {const2,1},%2
      1:				yields %2
with					yields {const2, $1}
						leaving cmi 2 teq ior 2

pat loc cmi teq $1>=0 && $1<=127 && $2==2
with exact src1
uses REG={const2,0}
  gen cmpb %1,{const2,$1}
      bne {label,1f}
      inc %a
      1:				yields %a
with					yields {const2, $1}
						leaving cmi 2 teq

pat loc cmi tne and $1>=0 && $1<=127 && $2==2 && $4==2
with exact src1 REG
  gen cmpb %1,{const2,$1}
      bne {label,1f}
      clr %2
      1:				yields %2
with					yields {const2, $1}
						leaving cmi 2 tne and 2

pat loc cmi tne ior $1>=0 && $1<=127 && $2==2 && $4==2
with exact src1 REG
  gen cmpb %1,{const2,$1}
      beq {label,1f}
      bis {const2,1},%2
      1:				yields %2
with					yields {const2, $1}
						leaving cmi 2 tne ior 2

pat loc cmi tne $1>=0 && $1<=127 && $2==2
with exact src1
  uses REG={const2,0}
  gen cmpb %1,{const2,$1}
      beq {label,1f}
      inc %a
      1:				yields %a
with					yields {const2, $1}
						leaving cmi 2 tne

proc cmptxx
with src2 src2
uses REG={const2,0}
gen cmp %2,%1
    bxx* {label,1f}
    inc %a
    1:					yields %a

pat cmp tlt			call cmptxx("bhis")
pat cmp tle			call cmptxx("bhi")
pat cmp teq			call cmptxx("bne")
pat cmp tne			call cmptxx("beq")
pat cmp tgt			call cmptxx("blos")
pat cmp tge			call cmptxx("blo")

proc cmf4txx
with FLTREG FLTREG
uses REG={const2,0}
gen cmpf %2,%1
    cfcc.
    bxx* {label,1f}
    inc %a
    1:					yields %a

pat cmf tlt $1==4		call cmf4txx("bge")
pat cmf tle $1==4		call cmf4txx("bgt")
pat cmf teq $1==4		call cmf4txx("bne")
pat cmf tne $1==4		call cmf4txx("beq")
pat cmf tgt $1==4		call cmf4txx("ble")
pat cmf tge $1==4		call cmf4txx("blt")

proc cmf8txx
with DBLREG double8
  uses REG={const2,0}
  gen cmpf %2,%1
      cfcc.
      bxx[1] {label,1f}
      inc %a
      1:				yields %a
with double8 DBLREG
  uses REG={const2,0}
  gen cmpf %1,%2
      cfcc.
      bxx[2] {label,1f}
      inc %a
      1:				yields %a

pat cmf tlt $1==8		call cmf8txx("bge","ble")
pat cmf tle $1==8		call cmf8txx("bgt","blt")
pat cmf teq $1==8		call cmf8txx("bne","bne")
pat cmf tne $1==8		call cmf8txx("beq","beq")
pat cmf tgt $1==8		call cmf8txx("ble","bge")
pat cmf tge $1==8		call cmf8txx("blt","bgt")

/****************************************
 * Group 13 : Branch instructions       *
 ****************************************/

pat bra
with STACK
gen jbr {label, $1}

proc bxx example beq
with src2 src2 STACK
gen cmp %2,%1
    jxx* {label, $1}
pat blt				call bxx("jlt")
pat ble				call bxx("jle")
pat beq				call bxx("jeq")
pat bne				call bxx("jne")
pat bgt				call bxx("jgt")
pat bge				call bxx("jge")

pat loc beq $1>=0 && $1<=127
with exact src1 STACK
  gen cmpb %1,{const2,$1}
      jeq {label, $2}
with					yields {const2, $1}
						leaving beq $2

pat loc bne $1>=0 && $1<=127
with exact src1 STACK
  gen cmpb %1,{const2,$1}
      jne {label, $2}
with					yields {const2, $1}
						leaving bne $2

proc zxx example zeq
with src2 STACK
gen test %1
    jxx* {label, $1}

pat zlt				call zxx("jlt")
pat zle				call zxx("jle")
pat zeq				call zxx("jeq")
pat zne				call zxx("jne")
pat zgt				call zxx("jgt")
pat zge				call zxx("jge")

proc cmpzxx example cmp zeq
with src2 src2 STACK
gen cmp %2,%1
    jxx* {label, $2}

pat cmp zlt			call cmpzxx("jlo")
pat cmp zle			call cmpzxx("jlos")
pat cmp zeq			call cmpzxx("jeq")
pat cmp zne			call cmpzxx("jne")
pat cmp zgt			call cmpzxx("jhi")
pat cmp zge			call cmpzxx("jhis")

proc cmf4zxx example cmf zeq
with FLTREG FLTREG STACK
gen cmpf %2,%1
    cfcc.
    jxx* {label, $2}

pat cmf zlt $1==4		call cmf4zxx("jlt")
pat cmf zle $1==4		call cmf4zxx("jle")
pat cmf zeq $1==4		call cmf4zxx("jeq")
pat cmf zne $1==4		call cmf4zxx("jne")
pat cmf zgt $1==4		call cmf4zxx("jgt")
pat cmf zge $1==4		call cmf4zxx("jge")

proc cmf8zxx example cmf zeq
with DBLREG double8 STACK
  gen cmpf %2,%1
      cfcc.
      jxx[1] {label, $2}
with double8 DBLREG STACK
  gen cmpf %1,%2
      cfcc.
      jxx[2] {label, $2}

pat cmf zlt $1==8		call cmf8zxx("jlt","jgt")
pat cmf zle $1==8		call cmf8zxx("jle","jge")
pat cmf zeq $1==8		call cmf8zxx("jeq","jeq")
pat cmf zne $1==8		call cmf8zxx("jne","jne")
pat cmf zgt $1==8		call cmf8zxx("jgt","jlt")
pat cmf zge $1==8		call cmf8zxx("jge","jle")

proc andzen example and zeq
with src2 src2 STACK
gen bit %1,%2
    jxx* {label, $2}

pat and zeq $1==2		call andzen("jeq")
pat and zne $1==2		call andzen("jne")

/************************************************
 * group 14 : Procedure call instructions       *
 ************************************************/

pat cal
with STACK
gen jsr pc,{label, $1}

pat cai
with REG STACK
gen jsr pc,{regdef2,%1}

pat lfr $1==2				yields r0
pat lfr $1==4				yields r1 r0
pat lfr $1==8				yields {relative8,"retar"}
pat lfr
with STACK
gen move {const2,$1},r0
    jsr pc,{label, "lfr~"}

pat lfr ret $1==$2				leaving ret 0


pat ret $1==0
with STACK
gen mov lb,sp
    mov {autoinc, sp},lb
    rts pc

pat ret $1==2
with src2 STACK
gen move %1,r0
    mov lb,sp
    mov {autoinc, sp},lb
    rts pc

pat ret $1==4
with STACK
gen mov {autoinc,sp},r0
    mov {autoinc,sp},r1
    mov lb,sp
    mov {autoinc, sp},lb
    rts pc

pat ret $1==8				yields {addr_external, "retar"}
						leaving sti 8 ret 0

pat ret
with STACK
gen move {const2,$1},r0
    jmp {label,"ret~"}

/************************************************
 * Group 15 : Miscellaneous instructions        *
 ************************************************/

pat asp $1==2
with STACK
gen tst {autoinc,sp}

pat asp $1==4
with STACK
gen cmp {autoinc,sp},{autoinc,sp}

pat asp $1==0-2
with STACK
gen tst {autodec,sp}

pat asp
with STACK
gen add {const2,$1},sp

pat ass $1==2
with STACK
gen add {autoinc,sp},sp

pat blm $1==4
with REG REG
gen mov {autoinc,%2},{autoinc,%1}
    mov {regdef2,%2},{regdef2,%1}

pat blm $1==6
with REG REG
gen mov {autoinc,%2},{autoinc,%1}
    mov {autoinc,%2},{autoinc,%1}
    mov {regdef2,%2},{regdef2,%1}

pat blm $1==8
with REG REG
gen mov {autoinc,%2},{autoinc,%1}
    mov {autoinc,%2},{autoinc,%1}
    mov {autoinc,%2},{autoinc,%1}
    mov {regdef2,%2},{regdef2,%1}

pat blm
with REG REG
uses REG={const2,$1/2}
gen 1:
    mov {autoinc,%2},{autoinc,%1}
    sob %a,{label,1b}

pat lae csa $2==2
with src2 STACK
gen move %1,r1
    move {addr_external,$1},r0
    jmp {label, "csa~"}

pat csa $1==2
with STACK
gen mov {autoinc,sp},r0
    mov {autoinc,sp},r1
    jmp {label, "csa~"}

pat lae csb $2==2
with src2 STACK
gen move %1,r1
    move {addr_external,$1},r0
    jmp {label, "csb~"}

pat csb $1==2
with STACK
gen mov {autoinc,sp},r0
    mov {autoinc,sp},r1
    jmp {label, "csb~"}

pat dup $1==2
with REG				yields %1 %1

pat dup $1==4
with exact long4			yields %1 %1
with src2 src2				yields %2 %1 %2 %1

pat dup $1==8
with exact long8			yields %1 %1
with STACK
gen move {const2, $1}, r0
    jsr pc,{label, "dup~"}

pat dup
with STACK
gen move {const2, $1}, r0
    jsr pc,{label, "dup~"}

pat dus $1==2
with src2 STACK
gen move %1,r0
    jsr pc,{label, "dup~"}

pat gto
with STACK
gen mov {addr_external, $1},{autodec,sp}
    jmp {label, "gto~"}

pat fil
gen mov {addr_external, $1},{relative2, "hol0"+4}

pat lim					yields { relative2, "trpim~"}

pat lin
gen mov {const2,$1},{relative2, "hol0"}

pat lni
gen inc {relative2, "hol0"}

pat lor $1==0				yields lb

pat lor $1==1
with STACK
uses REG
gen mov sp,%a				yields %a

pat lor $1==2				yields {relative2,"reghp~"}

pat mon
with STACK
gen jsr pc,{label, "mon~"}

pat nop
with STACK
gen jsr pc,{label, "nop~"}

pat rck $1==2
with src2

pat rtt						leaving ret 0

pat sig
with src2
uses REG
gen move {relative2,"trppc~"},%a
    mov %1,{relative2,"trppc~"}		yields %a

pat sim
with STACK
gen jsr pc,{label, "sim~"}

pat str $1==0
with src2
gen mov %1,lb

pat str $1==1
with src2 STACK
gen mov %1,sp

pat str $1==2
with STACK
gen jsr pc,{label, "strhp~"}

pat trp
with STACK
gen jsr pc,{label, "trp~"}

pat exg $1==2
with src2 src2				yields %1 %2

pat exg defined($1)
with STACK
gen move {const2,$1},r0
    jsr pc,{label, "exg~"}

pat lol lal sti $1==$2 && $3==1 /* throw away funny C-proc-prolog */

pat los
gen jmp {label, illins}

pat sts
gen jmp {label, illins}

pat inn
gen jmp {label, illins}

pat set
gen jmp {label, illins}