/*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
rscid = "$Header$"
/*
* Back end tables for Intel 8086, 80286
*
* Author : Ed Keizer
*
* Adapted to ncg format by BMT Mosseveld, EM v Mulligen, M de Rooy, E tulp,
* and R Vendelmans (practical work course compiler construction).
*
* New format table much corrected: Ceriel Jacobs
* Added register variables: Ceriel Jacobs
* Adapted to use floating point library: Ceriel Jacobs
*
* wordsize = 2 bytes, pointersize = 2 bytes.
*
* Register bp is used as LB, sp is used for SP.
* Some global variables are used:
* - .reghp : the heap pointer
* - .ignmask : trap ignore mask
* - .trppc : address of user defined trap handler
*
*/
SL = 4
SSL = "4"
EM_WSIZE = 2
EM_PSIZE = 2
EM_BSIZE = 4
SIZEFACTOR = 5/1
#define EXACT exact
#define REGVARS
/*****************************************************************/
PROPERTIES
/*****************************************************************/
REG1
ACC1
AREG
SHIFT_CREG
REG
GENREG
ACC
BREG
BXREG
ADDREG
CXREG
DXREG
IREG
#ifdef REGVARS
RADDREG
#endif
/*****************************************************************/
REGISTERS
/*****************************************************************/
al : REG1 , ACC1 .
ah,bl,bh,ch,dl,dh : REG1 .
cl : REG1 , SHIFT_CREG .
ax = al + ah : REG , GENREG , ACC .
bx = bl + bh : REG , GENREG , BXREG , ADDREG , AREG .
cx = cl + ch : REG , GENREG , CXREG , SHIFT_CREG.
dx = dl + dh : REG , GENREG , DXREG .
#ifndef REGVARS
si : REG , IREG , AREG , ADDREG .
di : REG , IREG , AREG , ADDREG .
#else
si : AREG , RADDREG , IREG regvar(reg_any) .
di : AREG , RADDREG , IREG regvar(reg_any) .
#endif
bp : AREG .
sp : BREG .
/*****************************************************************/
TOKENS
/*****************************************************************/
ANYCON = { INT val; } 2 cost(2,2) val .
CONSTR = { ADDR off; } 2 cost(2,2) off .
ADDR_EXTERN = { ADDR off; } 2 cost(2,2) off .
EXTERN1 = { ADDR off; } 2 cost(2,12) "(" off ")" .
EXTERN2 = { ADDR off; } 2 cost(2,12) "(" off ")" .
ADDR_LOCAL = { INT ind; } 2 cost(1,9) ind "(bp)" .
LOCAL = { INT ind; INT size; } 2 cost(1,15) ind "(bp)" .
LOCAL1 = { INT ind; INT size; } 2 cost(1,15) ind "(bp)" .
Rreg_off = { AREG reg; ADDR off;} 2 cost(1,9) off "(" reg ")" .
Rbpreg_off = { AREG reg; INT ind;} 2 cost(1,11) ind "(bp)" "(" reg ")" .
Xreg_off = { AREG reg; ADDR off;} 2 cost(1,9) off "(" reg ")" .
ind_reg2 = { AREG reg;} 2 cost(0,11) "(" reg ")" .
ind_regoff2 = { AREG reg; ADDR off;} 2 cost(1,15) off "(" reg ")" .
ind_bpregoff2 = { AREG reg; INT ind;} 2 cost(1,18) ind "(bp)" "(" reg ")" .
ind_reg1 = { AREG reg;} 2 cost(0,11) "(" reg ")" .
ind_regoff1 = { AREG reg; ADDR off;} 2 cost(1,15) off "(" reg ")" .
ind_bpregoff1 = { AREG reg; INT ind;} 2 cost(1,18) ind "(bp)" "(" reg ")" .
label = { ADDR off;} 2 off .
/*****************************************************************/
SETS
/*****************************************************************/
/* Mode refering to a word in memory */
memory2 = EXTERN2 + ind_reg2 + ind_regoff2 + ind_bpregoff2 +
LOCAL .
memory1 = EXTERN1 + ind_reg1 + ind_regoff1 + ind_bpregoff1 +
LOCAL1 .
const = ANYCON + ADDR_EXTERN + CONSTR .
register = REG + AREG
#ifdef REGVARS
+ IREG
#endif
.
addreg = ADDREG
#ifdef REGVARS
+ RADDREG
#endif
.
anyreg = register + BREG .
rm = anyreg + memory2 .
rmnoacc = IREG + BXREG + CXREG + memory2 .
rmorconst = const + rm .
regorconst = const + anyreg .
#ifdef REGVARS
/* Needed because there is a shortage of ADDREG-registers.
This is the main penalty for having register variables.
*/
regorconstnoaddr = const + IREG + ACC + CXREG + DXREG .
#else
regorconstnoaddr = regorconst .
#endif
dest = register + memory2 .
rm1 = REG1 + memory1 .
rmorconst1 = const + rm1 .
regorconst12 = REG1 + GENREG + const .
dest1 = REG1 + memory1 .
rm12 = rm1 + memory2 .
/* Modes used to indicate tokens to be removed from the fakestack */
reg_indexed = ind_reg2 + ind_regoff2 + ind_reg1 + ind_regoff1 .
lb_indexed = ind_bpregoff2 + ind_bpregoff1 .
indexed = reg_indexed + lb_indexed .
externals = EXTERN2 + EXTERN1 .
locals = LOCAL + LOCAL1 .
all_locals = locals + lb_indexed .
indirects = externals + reg_indexed .
referals = indirects + locals .
/* Miscellaneous */
reg_off = Xreg_off + Rreg_off .
bpreg_off = Rbpreg_off .
halfindir = reg_off + bpreg_off + ADDR_LOCAL .
some_off = halfindir + ADDR_EXTERN + addreg .
a_word = rmorconst + rm1 + halfindir .
no_reg_off = rmorconst + rm1 + ADDR_LOCAL .
/*****************************************************************/
INSTRUCTIONS
/*****************************************************************/
cost(1,3)
adc rm:rw:cc, regorconst:ro.
adc anyreg:rw:cc, rmorconst:ro.
#ifdef REGVARS
add LOCAL:rw:cc, rmorconst:ro. /* only for register variables; UNSAFE !!! */
#endif
add anyreg:rw:cc, rmorconst:ro.
add rm:rw:cc, regorconst:ro.
#ifdef REGVARS
axx "syntax error" LOCAL:rw:cc, rmorconst:ro. /* only for register variables; UNSAFE !!! */
#endif
axx "syntax error" anyreg:rw:cc, rmorconst:ro.
axx "syntax error" rm:rw:cc, regorconst:ro.
#ifdef REGVARS
and LOCAL:rw:cc, rmorconst:ro. /* only for register variables; UNSAFE !!! */
#endif
and rm:rw:cc, regorconst:ro.
and anyreg:rw:cc, rmorconst:ro.
cbw kills ah cost(1,2).
cmp rm:ro, regorconst:ro kills :cc.
cmp anyreg:ro, rmorconst:ro kills :cc.
cmpb rm1:ro, REG1+const:ro kills :cc.
cmpb REG1:ro, rm1:ro kills :cc.
cwd kills dx cost(1,5).
dec rm:rw:cc cost(1,2).
div rm:ro kills:cc ax dx cost(1,150).
idiv rm:ro kills:cc ax dx cost(1,170).
inc rm:rw:cc cost(1,2).
ja label cost(1,4).
jae label cost(1,4).
jb label cost(1,4).
jbe label cost(1,4).
jcxz label cost(1,5).
je label cost(1,4).
jg label cost(1,4).
jge label cost(1,4).
jl label cost(1,4).
jle label cost(1,4).
jne label cost(1,4).
jmp label cost(1,7).
joehoe "call" label+rm cost(1,8).
jxx "syntax error" label.
lea anyreg:wo, halfindir:ro cost(1,2).
lea LOCAL:wo, halfindir:ro cost(1,2). /* only for register variables, UNSAFE!!! */
loop label kills cx cost(1,5).
#ifdef REGVARS
mov LOCAL:wo, memory2:ro cost(1,2). /* only for register variables, UNSAFE!!! */
#endif
mov a_word:wo, regorconst:ro cost(1,2).
mov anyreg:wo, rmorconst:ro cost(1,2).
movb rm1:wo, regorconst12:ro cost(1,2).
movb REG1:wo, rm1:ro cost(1,2).
mul rmorconst:ro kills :cc ax dx cost(1,124).
neg rmorconst:rw:cc.
nop .
not rmorconst:rw.
ORB "orb" REG1:ro, REG1:ro:cc. /* use ORB for tests */
OR "or" anyreg:ro, anyreg:ro:cc. /* Use OR for tests */
#ifdef REGVARS
or LOCAL:rw:cc, rmorconst:ro. /* only for register variables; UNSAFE !!! */
#endif
or rm:rw:cc, regorconst:ro.
or anyreg:rw:cc, rmorconst:ro.
pop rmorconst+rm1:wo cost(1,8).
push rmorconst+rm1:ro cost(1,10).
rcl rm:rw:cc, ANYCON+SHIFT_CREG:ro.
rcr rm:rw:cc, ANYCON+SHIFT_CREG:ro.
ret cost(1,8).
rol rm:rw:cc, ANYCON+SHIFT_CREG:ro.
ror rm:rw:cc, ANYCON+SHIFT_CREG:ro.
sal rm:rw:cc, ANYCON+SHIFT_CREG:ro.
sar rm:rw:cc, ANYCON+SHIFT_CREG:ro.
sbb rm:rw:cc, regorconst:ro.
sbb anyreg:rw:cc, rmorconst:ro.
shl rm:rw:cc, ANYCON+SHIFT_CREG:ro.
shr rm:rw:cc, ANYCON+SHIFT_CREG:ro.
sxx rm:rw:cc, ANYCON+SHIFT_CREG:ro.
#ifdef REGVARS
sub LOCAL:rw:cc, rmorconst:ro. /* only for register variables; UNSAFE !!! */
#endif
sub rm:rw:cc, regorconst:ro.
sub anyreg:rw:cc, rmorconst+halfindir:ro.
check "test" rm:ro, regorconst:ro kills :cc.
check "test" anyreg:ro, rmorconst:ro kills :cc.
testb "testb" rm12:ro, regorconst:ro kills :cc.
testb "testb" REG1:ro, rmorconst:ro kills :cc.
testb "testb" ACC1:ro, const:ro kills :cc.
uxx "syntax error" rm:rw:cc cost(1,2).
xchg rm:rw, anyreg:rw.
xchg anyreg:rw, rm:rw.
xor rm:rw:cc, regorconst:ro.
xor anyreg:rw:cc, rmorconst:ro.
xorb rm1:rw:cc, regorconst12:ro.
xorb anyreg:rw:cc, rm1:ro.
killreg "! kill" anyreg:wo cost(0,0).
data ".sect .data".
word ".data2" const:ro.
text ".sect .text".
/*****************************************************************/
MOVES
/*****************************************************************/
#ifdef REGVARS
from memory2 to LOCAL /* unsafe !!! */
gen mov %2,%1
from halfindir to LOCAL /* unsafe !!! */
gen lea %2,%1
#endif
from rm to register
gen mov %2,%1
from anyreg to dest
gen mov %2,%1
from halfindir to register+AREG
gen lea %2,%1
from rm1 to REG1
gen movb %2,%1
from GENREG to rm1
gen movb %2,%1.1
from ANYCON %val==0 to register
gen xor %2,%2
from ANYCON %val==0 to REG1
gen xorb %2,%2
from const to dest
gen mov %2,%1
from const+REG1 to rm1
gen movb %2,%1
/*****************************************************************/
TESTS
/*****************************************************************/
to test anyreg
gen OR %1,%1
to test memory2
gen cmp %1, {ANYCON,0}
to test REG1
gen ORB %1,%1
to test memory1
gen cmpb %1, {ANYCON,0}
/*****************************************************************/
STACKINGRULES
/*****************************************************************/
from anyreg to STACK
gen push %1
from memory2 to STACK
gen push %1
from const to STACK
uses REG
gen move %1,%a
push %a
from const to STACK
gen data.
1:
word %1
text.
push {EXTERN2,"1b"}
from rm1 to STACK
uses GENREG
gen move {ANYCON,0},%a
move %1,%a.1
push %a
from rm1 to STACK
gen push %1
push bx
mov bx,sp
movb {ind_regoff1,bx,3},{ANYCON,0}
pop bx
from Xreg_off to STACK
gen add %1.reg,{CONSTR,%1.off}
push %1.reg
from ADDR_LOCAL %ind==0 to STACK
gen
push bp
from halfindir to STACK
uses REG
gen move %1,%a
push %a
from halfindir to STACK
gen push ax
push bx
lea ax,%1
mov bx,sp
xchg {ind_regoff2,bx,2},ax
pop bx
/*****************************************************************/
COERCIONS
/*****************************************************************/
/***************************
* From source to register *
***************************/
from rmorconst
uses reusing %1,REG=%1 yields %a
from Xreg_off
gen add %1.reg,{CONSTR,%1.off} yields %1.reg
from halfindir
uses reusing %1,ADDREG
gen move %1,%a yields %a
from halfindir
uses reusing %1,REG
gen move %1,%a yields %a
/************************
* From source to token *
************************/
from ANYCON yields {ADDR_EXTERN,%1.val}
/****************
* From source1 *
****************/
from rm1
uses reusing %1,REG1=%1 yields %a
from rm1
uses reusing %1,GENREG
gen move %1,%a.1
xorb %a.2,%a.2 yields %a
from ACC1
uses reusing %1,ACC
gen xorb %a.2,%a.2 yields %a
/************************
* From STACK coercions *
************************/
from STACK
uses REG
gen pop %a yields %a
/*****************************************************************/
PATTERNS
/*****************************************************************/
/******************************************************************
* Group 1 : Load Instructions *
******************************************************************/
pat loc yields {ANYCON,$1}
pat ldc loww($1)==0 && highw($1)==0
uses REG = {ANYCON, 0} yields %a %a
pat ldc yields {ANYCON,highw($1)}
{ANYCON,loww($1)}
pat lol yields {LOCAL,$1,2}
pat stl lol $1==$2
#ifdef REGVARS
&& inreg($1) <= 0
#endif
leaving dup 2 stl $1
pat stl lol lof $1==$2
#ifdef REGVARS
&& inreg($1) <= 0
#endif
with AREG yields %1 %1
leaving stl $1 lof $3
pat stl lol loi $1==$2
#ifdef REGVARS
&& inreg($1) <= 0
#endif
with AREG yields %1 %1
leaving stl $1 loi $3
pat sdl ldl $1==$2 leaving dup 4 sdl $1
pat lol lol $1==$2
#ifdef REGVARS
&& inreg($1) <= 0
#endif
leaving lol $1 dup 2
#ifdef REGVARS
pat lol lol stl $1==$2 && inreg($1) <= 0 && inreg($3) > 0
kills regvar($3)
gen move {LOCAL,$1,2}, {LOCAL,$3,2}
yields {LOCAL,$3,2}
#endif
pat loe yields {EXTERN2,$1}
pat ste loe $1==$2 leaving dup 2 ste $1
pat ste loe lof $1==$2
with AREG yields %1 %1
leaving ste $1 lof $3
pat ste loe loi $1==$2
with AREG yields %1 %1
leaving ste $1 loi $3
pat sde lde $1==$2 leaving dup 4 sde $1
pat loe loe $1==$2 leaving loe $1 dup 2
#ifdef REGVARS
pat loe loe stl $1==$2 && inreg($3) > 0
kills regvar($3)
gen move {EXTERN2,$1}, {LOCAL,$3,2}
yields {LOCAL,$3,2}
#endif
#ifdef REGVARS
pat lil inreg($1) > 0 yields {ind_reg2, regvar($1)}
#endif
pat lil
uses ADDREG={LOCAL,$1,2} yields {ind_reg2,%a}
pat lil lil $1==$2 leaving lil $1 dup 2
pat lil lil stl $1==$2 leaving lil $1 stl $3 lol $3
pat sil lil $1==$2 leaving dup 2 sil $1
pat lof
with exact reg_off yields {ind_regoff2,%1.reg,%1.off+$1}
with exact bpreg_off yields {ind_bpregoff2,%1.reg,%1.ind+$1}
with exact ADDR_EXTERN yields {EXTERN2,%1.off+$1}
with exact ADDR_LOCAL yields {LOCAL,%1.ind + $1,2}
with addreg yields {ind_regoff2,%1,$1}
pat lal yields {ADDR_LOCAL,$1}
pat lae yields {ADDR_EXTERN,$1}
pat lpb leaving adp SL
pat lxl $1==0 yields {ADDR_LOCAL,0}
pat lxl $1==1 yields {LOCAL,SL,2}
pat lxl $1==2
uses ADDREG={LOCAL,SL,2} yields {ind_regoff2,%a,SSL}
pat lxl $1>2
uses ADDREG={LOCAL,SL,2},
CXREG={ANYCON,$1-1}
gen 1:
mov %a,{ind_regoff2,%a,4}
loop {label,1b} yields %a
pat lxa $1==0 yields {ADDR_LOCAL,SL}
pat lxa $1==1
uses ADDREG={LOCAL,SL,2} yields {Xreg_off,%a,SSL}
pat lxa $1==2
uses ADDREG={LOCAL,SL,2}
gen move {ind_regoff2,%a,SSL},%a yields {Xreg_off,%a,SSL}
pat lxa $1>2
uses ADDREG={LOCAL,SL,2},
CXREG={ANYCON,$1-1}
gen 1:
mov %a,{ind_regoff2,%a,4}
loop {label,1b} yields {Xreg_off,%a,SSL}
pat dch leaving loi 2
pat loi $1==2
with addreg yields {ind_reg2,%1}
with exact reg_off yields {ind_regoff2,%1.reg,%1.off}
with exact bpreg_off yields {ind_bpregoff2,%1.reg,%1.ind}
with exact ADDR_EXTERN yields {EXTERN2,%1.off}
with exact ADDR_LOCAL yields {LOCAL,%1.ind,2}
pat loi $1==1
with addreg yields {ind_reg1,%1}
with exact reg_off yields {ind_regoff1,%1.reg,%1.off}
with exact bpreg_off yields {ind_bpregoff1,%1.reg,%1.ind}
with exact ADDR_EXTERN yields {EXTERN1,%1.off}
with exact ADDR_LOCAL yields {LOCAL1,%1.ind,1}
pat loi $1==4
with addreg yields {ind_regoff2,%1,2}
{ind_reg2,%1}
with exact reg_off yields {ind_regoff2,%1.reg,%1.off+2}
{ind_regoff2,%1.reg,%1.off}
with exact bpreg_off yields {ind_bpregoff2,%1.reg,%1.ind+2}
{ind_bpregoff2,%1.reg,%1.ind}
with exact ADDR_LOCAL yields {LOCAL,%1.ind+2,2}
{LOCAL,%1.ind,2}
with exact ADDR_EXTERN yields {EXTERN2,%1.off + 2}
{EXTERN2,%1.off}
pat loi $1>4
with BXREG
kills ALL
gen mov cx,{ANYCON,$1}
joehoe {label,".loi"}
pat los $1==2
with CXREG BXREG
kills ALL
gen joehoe {label,".los"}
pat ldl yields {LOCAL,$1+2,2}
{LOCAL,$1,2}
pat lde yields {EXTERN2,$1 + 2}
{EXTERN2,$1}
pat ldf
with exact reg_off yields {ind_regoff2,%1.reg,
%1.off + 2 + $1}
{ind_regoff2,%1.reg,
%1.off + $1}
with addreg yields {ind_regoff2,%1,$1+2}
{ind_regoff2,%1,$1}
with exact bpreg_off yields {ind_bpregoff2,%1.reg,%1.ind+2+$1}
{ind_bpregoff2,%1.reg,%1.ind+$1}
with exact ADDR_EXTERN yields {EXTERN2,%1.off+2+$1}
{EXTERN2,%1.off+$1}
with exact ADDR_LOCAL yields {LOCAL,%1.ind + $1 + 2,2}
{LOCAL,%1.ind + $1,2}
pat lpi yields {ADDR_EXTERN,$1}
/* this code sequence is generated by the C-compiler to tackle
char parameters, on the 8086 it reduces to nil */
pat lol lal sti $1==$2 && $3<=2
/*******************************************************************
* Group 2 : Store Instructions *
*******************************************************************/
#ifdef REGVARS
pat stl inreg($1)==reg_any
with rmorconst
kills regvar($1)
gen move %1, {LOCAL,$1,2}
with halfindir
kills regvar($1)
gen move %1, {LOCAL,$1,2}
with exact STACK
kills regvar($1)
gen pop {LOCAL, $1, 2}
#endif
pat stl
with regorconst
kills indexed,locals %ind+%size > $1 && %ind < $1+2
gen move %1,{LOCAL,$1,2}
with exact STACK
kills indexed,locals %ind+%size > $1 && %ind < $1+2
gen pop {LOCAL,$1,2}
pat ste
with regorconst
kills indirects
gen move %1,{EXTERN2,$1}
with exact STACK
kills indirects
gen pop {EXTERN2,$1}
#ifdef REGVARS
pat sil inreg($1)==reg_any
with regorconst
kills referals
gen move %1,{ind_reg2,regvar($1)}
with exact STACK
kills referals
gen pop {ind_reg2,regvar($1)}
#endif
pat sil
with regorconstnoaddr
kills referals
uses ADDREG={LOCAL,$1,2}
gen move %1,{ind_reg2,%a}
killreg %a
with exact STACK
kills referals
uses ADDREG={LOCAL,$1,2}
gen pop {ind_reg2,%a}
killreg %a
pat stf
with addreg regorconst
kills referals
gen move %2,{ind_regoff2,%1,$1}
with exact addreg STACK
kills referals
gen pop {ind_regoff2, %1,$1}
with reg_off regorconst
kills referals
gen move %2,{ind_regoff2,%1.reg,%1.off+$1}
with exact reg_off STACK
kills referals
gen pop {ind_regoff2,%1.reg,$1+%1.off}
with exact bpreg_off STACK
kills all_locals, indexed
gen pop {ind_bpregoff2,%1.reg,$1+%1.ind}
with ADDR_LOCAL regorconst
kills indexed,locals %ind+%size > %1.ind+$1 && %ind < %1.ind+$1+2
gen move %2,{LOCAL,%1.ind+$1,2}
with exact ADDR_LOCAL STACK
kills indexed,locals %ind+%size > %1.ind+$1 && %ind < %1.ind+$1+2
gen pop {LOCAL,%1.ind+$1,2}
with bpreg_off regorconst
kills all_locals,indexed
gen move %2,{ind_bpregoff2,%1.reg,%1.ind+$1}
with ADDR_EXTERN regorconst
kills indirects
gen move %2,{EXTERN2,%1.off+$1}
with exact ADDR_EXTERN STACK
kills indirects
gen pop {EXTERN2,%1.off+$1}
pat sti $1==2
with addreg regorconst
kills referals
gen move %2,{ind_reg2,%1}
with exact addreg STACK
kills referals
gen pop {ind_reg2,%1}
with reg_off regorconst
kills referals
gen move %2,{ind_regoff2,%1.reg,%1.off}
with exact reg_off STACK
kills referals
gen pop {ind_regoff2,%1.reg,%1.off}
with bpreg_off regorconst
kills all_locals,indexed
gen move %2,{ind_bpregoff2,%1.reg,%1.ind}
with exact bpreg_off STACK
kills all_locals,indexed
gen pop {ind_bpregoff2,%1.reg,%1.ind}
with ADDR_EXTERN regorconst
kills indirects
gen move %2,{EXTERN2,%1.off}
with exact ADDR_EXTERN STACK
kills indirects
gen pop {EXTERN2,%1.off}
with ADDR_LOCAL regorconst
kills indexed,locals %ind+%size > %1.ind && %ind < %1.ind+2
gen move %2,{LOCAL,%1.ind,2}
with exact ADDR_LOCAL STACK
kills indexed,locals %ind+%size > %1.ind && %ind < %1.ind+2
gen pop {LOCAL,%1.ind,2}
pat sti $1==1
with addreg regorconst12
kills referals
gen move %2,{ind_reg1,%1}
with reg_off regorconst12
kills referals
gen move %2,{ind_regoff1,%1.reg,%1.off}
with bpreg_off regorconst12
kills all_locals,indexed
gen move %2,{ind_bpregoff1,%1.reg,%1.ind}
with ADDR_EXTERN regorconst12
kills indirects
gen move %2,{EXTERN1,%1.off}
with ADDR_LOCAL regorconst12
kills indexed,locals %ind+%size > %1.ind && %ind <= %1.ind
gen move %2,{LOCAL1,%1.ind,1}
pat sti $1==4 leaving sdf 0
pat sti $1>4
with BXREG
kills ALL
gen mov cx,{ANYCON,$1}
joehoe {label, ".sti"}
/* this sort of construction gives problems in the codegenerator
because of the potential very large lookahead
with addreg
kills ALL
gen pop (%1)
add %1,{ANYCON,2} yields %1 leaving sti $1-2
*/
pat sts $1==2
with CXREG BXREG
kills ALL
gen joehoe {label,".sts"}
pat sdl
with regorconst regorconst yields %2 %1
leaving stl $1 stl $1+2
with exact STACK leaving stl $1 stl $1+2
pat sde
with regorconst regorconst yields %2 %1
leaving ste $1 ste $1+2
with exact STACK leaving ste $1 ste $1+2
pat sdf
with addreg regorconst regorconst
kills referals
gen move %2,{ind_regoff2,%1,$1}
move %3,{ind_regoff2,%1,$1+2}
with exact addreg STACK
kills referals
gen pop {ind_regoff2,%1,$1}
pop {ind_regoff2,%1,$1+2}
with exact halfindir STACK
kills referals
uses reusing %1,ADDREG=%1
gen pop {ind_regoff2,%a,$1}
pop {ind_regoff2,%a,$1+2}
with exact memory2 STACK
kills referals
uses reusing %1,ADDREG=%1
gen pop {ind_regoff2,%a,$1}
pop {ind_regoff2,%a,$1+2}
with reg_off regorconst regorconst
kills referals
gen move %2,{ind_regoff2,%1.reg,%1.off+$1}
move %3,{ind_regoff2,%1.reg,%1.off+$1+2}
with exact reg_off STACK
kills referals
gen pop {ind_regoff2,%1.reg,$1+%1.off}
pop {ind_regoff2,%1.reg,$1+2+%1.off}
with exact bpreg_off STACK
kills all_locals,indexed
gen pop {ind_bpregoff2, %1.reg,$1+%1.ind}
pop {ind_bpregoff2, %1.reg,$1+2+%1.ind}
with ADDR_LOCAL regorconst regorconst
kills indexed,locals %ind+%size > %1.ind+$1 && %ind < %1.ind+$1+4
gen move %2,{LOCAL,%1.ind+$1,2}
move %3,{LOCAL,%1.ind+$1+2,2}
with exact ADDR_LOCAL STACK
kills indexed,locals %ind+%size > %1.ind+$1 && %ind < %1.ind+$1+4
gen pop {LOCAL,%1.ind+$1,2}
pop {LOCAL,%1.ind+$1+2,2}
with ADDR_EXTERN regorconst regorconst
kills indirects
gen move %2,{EXTERN2,%1.off+$1}
move %3,{EXTERN2,%1.off+$1+2}
with exact ADDR_EXTERN STACK
kills indirects
gen pop {EXTERN2,%1.off+$1}
pop {EXTERN2,%1.off+$1+2}
with bpreg_off regorconst regorconst
kills all_locals,indexed
gen move %2,{ind_bpregoff2,%1.reg,%1.ind+$1}
move %3,{ind_bpregoff2,%1.reg,%1.ind+$1+2}
/****************************************************************
* Group 3 : Integer Arithmetic. *
* *
* Implemented (sometimes with the use of subroutines) : *
* all 2 and 4 byte arithmetic. *
****************************************************************/
pat adi $1==2
#ifdef REGVARS
with exact ANYCON IREG
yields {Rreg_off,%2,%1.val}
with exact IREG ANYCON
yields {Rreg_off,%1,%2.val}
#endif
with REG rmorconst
gen add %1,%2 yields %1
with rmorconst REG
gen add %2,%1 yields %2
with EXACT rmorconst const
uses reusing %1,REG=%1
gen add %a,%2 yields %a
pat adi $1==4
with EXACT REG REG rmorconst rmorconst
gen add %1,%3
adc %2,%4 yields %2 %1
with rmorconst rmorconst REG REG
gen add %3,%1
adc %4,%2 yields %4 %3
pat adi !defined($1)
with CXREG ACC
kills ALL
gen joehoe {label,".adi"} yields ax
pat sbi $1==2
with rmorconst REG
gen sub %2,%1 yields %2
with EXACT REG rmorconst
gen sub %1,%2
neg %1 yields %1
pat sbi $1==4
with rmorconst rmorconst REG REG
gen sub %3,%1
sbb %4,%2 yields %4 %3
pat sbi !defined($1)
with CXREG ACC
kills ALL
gen joehoe {label,".sbi"} yields ax
pat mli $1==2
with ACC rm
uses reusing %2,DXREG
gen mul %2 yields %1
/* mul and imul have same low order result
but mul is faster
*/
with rmnoacc rmorconst
uses reusing %2,DXREG,ACC=%2
gen mul %1 yields %b
pat mli $1==4
with ACC DXREG
kills ALL
gen joehoe {label,".mli4"} yields dx ax
/*
pat mli !defined($1)
with ACC
kills ALL
gen joehoe {label,".mli"}
*/
pat dvi $1==2
with rmnoacc rmorconst
uses reusing %2,DXREG,ACC=%2
gen cwd.
idiv %1 yields ax
pat dvi $1==4
kills ALL
gen joehoe {label,".dvi4"} yields dx ax
/*
pat dvi !defined($1)
with ACC
kills ALL
gen joehoe {label,".dvi"}
*/
pat rmi $1==2
with rmnoacc rmorconst
uses reusing %2, ACC=%2, DXREG
gen cwd.
idiv %1 yields dx
pat rmi $1==4
kills ALL
gen joehoe {label,".rmi4"} yields dx ax
/*
pat rmi !defined($1)
with ACC
kills ALL
gen joehoe {label,".rmi"}
*/
pat ngi $1==2
with REG
gen neg %1 yields %1
pat ngi $1==4
with REG REG
gen neg %2
neg %1
sbb %2,{ANYCON,0} yields %2 %1
/*
pat ngi !defined($1)
with ACC
kills ALL
gen joehoe {label,".ngi"}
*/
pat loc sli $1==1 && $2==2
with REG
gen sal %1,{ANYCON,1} yields %1
pat loc sli $1==1 && $2==4
with REG REG
gen sal %1,{ANYCON,1}
rcl %2,{ANYCON,1} yields %2 %1
pat loc sli $1==2 && $2==4
with REG REG
gen sal %1,{ANYCON,1}
rcl %2,{ANYCON,1}
sal %1,{ANYCON,1}
rcl %2,{ANYCON,1} yields %2 %1
pat loc sli $1==3 && $2==4
with REG REG
gen sal %1,{ANYCON,1}
rcl %2,{ANYCON,1}
sal %1,{ANYCON,1}
rcl %2,{ANYCON,1}
sal %1,{ANYCON,1}
rcl %2,{ANYCON,1} yields %2 %1
pat loc sli $1==16 && $2==4
with rmorconst rmorconst yields %1 {ANYCON,0}
pat sli $1==2
with SHIFT_CREG REG
gen sal %2,cl yields %2
pat sli $1==4
with CXREG REG REG
gen jcxz {label,1f}
2:
sal %2,{ANYCON,1}
rcl %3,{ANYCON,1}
loop {label,2b}
1:
yields %3 %2
/*
pat sli !defined($1)
with ACC
kills ALL
gen joehoe {label,".sli"}
*/
pat loc sri $1==1 && $2==2
with REG
gen sar %1,{ANYCON,1} yields %1
pat loc sri $1==1 && $2==4
with REG REG
gen sar %2,{ANYCON,1}
rcr %1,{ANYCON,1} yields %2 %1
pat loc sri $1==2 && $2==4
with REG REG
gen sar %2,{ANYCON,1}
rcr %1,{ANYCON,1}
sar %2,{ANYCON,1}
rcr %1,{ANYCON,1} yields %2 %1
pat loc sri $1==3 && $2==4
with REG REG
gen sar %2,{ANYCON,1}
rcr %1,{ANYCON,1}
sar %2,{ANYCON,1}
rcr %1,{ANYCON,1}
sar %2,{ANYCON,1}
rcr %1,{ANYCON,1} yields %2 %1
pat sri $1==2
with SHIFT_CREG REG
gen sar %2,cl yields %2
pat sri $1==4
with CXREG REG REG
gen jcxz {label,1f}
2:
sar %3,{ANYCON,1}
rcr %2,{ANYCON,1}
loop {label,2b}
1:
yields %3 %2
/*
pat sri !defined($1)
with ACC
kills ALL
gen joehoe {label,".sri"}
*/
/*******************************************************************
* Group 4: Unsigned Arithmetic *
*******************************************************************/
pat adu leaving adi $1
pat loc lol adu stl $1==1 && $3==2 && $2==$4 leaving inl $2
pat loc loe adu ste $1==1 && $3==2 && $2==$4 leaving ine $2
pat loc lol adu $1==1 && $3==2 leaving lol $2 inc
pat loc loe adu $1==1 && $3==2 leaving loe $2 inc
pat loc lil adu $1==1 && $3==2 leaving lil $2 inc
pat loc lol adu stl $1==0-1 && $3==2 && $2==$4 leaving del $2
pat loc loe adu ste $1==0-1 && $3==2 && $2==$4 leaving dee $2
pat loc lol adu $1==0-1 && $3==2 leaving lol $2 dec
pat loc loe adu $1==0-1 && $3==2 leaving loe $2 dec
pat loc lil adu $1==0-1 && $3==2 leaving lil $2 dec
pat sbu leaving sbi $1
pat lol loc sbu stl $1==$4 && $2==1 && $3==2 leaving del $1
pat loe loc sbu ste $1==$4 && $2==1 && $3==2 leaving dee $1
pat lol loc sbu $2==1 && $3==2 leaving lol $1 dec
pat loe loc sbu $2==1 && $3==2 leaving loe $1 dec
pat lil loc sbu $2==1 && $3==2 leaving lil $1 dec
pat lol loc sbu stl $1==$4 && $2==0-1 && $3==2 leaving inl $1
pat loe loc sbu ste $1==$4 && $2==0-1 && $3==2 leaving ine $1
pat lol loc sbu $2==0-1 && $3==2 leaving lol $1 inc
pat loe loc sbu $2==0-1 && $3==2 leaving loe $1 inc
pat lil loc sbu $2==0-1 && $3==2 leaving lil $1 inc
pat mlu leaving mli $1
pat loe loc loe adu ste $1==$3 && $1==$5 && $4==2
uses REG = {EXTERN2, $1}
yields %a leaving loc $2 loe $3 adu 2 ste $3
pat lol loc lol adu stl $1==$3 && $1==$5 && $4==2
uses REG = {LOCAL, $1, 2}
yields %a leaving loc $2 lol $3 adu 2 stl $3
pat loe loc loe adi ste $1==$3 && $1==$5 && $4==2
uses REG = {EXTERN2, $1}
yields %a leaving loc $2 loe $3 adi 2 ste $3
pat lol loc lol adi stl $1==$3 && $1==$5 && $4==2
uses REG = {LOCAL, $1, 2}
yields %a leaving loc $2 lol $3 adi 2 stl $3
pat dvu $1==2
with rmnoacc rmorconst
uses reusing %2, ACC=%2, DXREG={ANYCON,0}
gen div %1 yields ax
pat dvu $1==4
kills ALL
gen joehoe {label,".dvu4"} yields dx ax
/*
pat dvu !defined($1)
with ACC STACK
kills ALL
gen joehoe {label,".dvu"}
*/
pat rmu $1==2
with rmnoacc rmorconst
uses reusing %2, ACC=%2, DXREG={ANYCON,0}
gen div %1 yields dx
pat rmu $1==4
kills ALL
gen joehoe {label,".rmu4"} yields dx ax
/*
pat rmu !defined($1)
with ACC STACK
kills ALL
gen joehoe {label,".rmu"}
*/
pat slu leaving sli $1
pat loc slu leaving loc $1 sli $2
pat loc sru $1==1 && $2==2
with REG
gen shr %1,{ANYCON, 1} yields %1
pat loc sru $1==16 && $2==4
with rmorconst rmorconst yields {ANYCON,0} %2
pat sru $1==2
with SHIFT_CREG REG
gen shr %2,cl yields %2
pat sru $1==4
with CXREG REG REG
gen jcxz {label,1f}
2:
shr %3,{ANYCON, 1}
rcr %2,{ANYCON, 1}
loop {label,2b}
1: yields %3 %2
/*
pat sru !defined($1)
with ACC STACK
kills ALL
gen joehoe {label,".sru"}
*/
/*******************************************************************
* Group 5: Floating Point Instructions *
*******************************************************************/
pat adf $1==4 leaving cal ".adf4" asp 4
pat adf $1==8 leaving cal ".adf8" asp 8
pat sbf $1==4 leaving cal ".sbf4" asp 4
pat sbf $1==8 leaving cal ".sbf8" asp 8
pat mlf $1==4 leaving cal ".mlf4" asp 4
pat mlf $1==8 leaving cal ".mlf8" asp 8
pat dvf $1==4 leaving cal ".dvf4" asp 4
pat dvf $1==8 leaving cal ".dvf8" asp 8
pat ngf $1==4 leaving cal ".ngf4"
pat ngf $1==8 leaving cal ".ngf8"
pat fif $1==4 leaving lor 1 cal ".fif4" asp 2
pat fif $1==8 leaving lor 1 cal ".fif8" asp 2
pat fef $1==4 leaving lor 1 adp 0-2 cal ".fef4"
pat fef $1==8 leaving lor 1 adp 0-2 cal ".fef8"
/******************************************************************
* Group 6: Pointer Arithmetic *
******************************************************************/
pat adp $1==1
with exact Xreg_off yields {Xreg_off,%1.reg,%1.off+$1}
with exact Rreg_off yields {Rreg_off,%1.reg,%1.off+$1}
with exact ADDR_EXTERN yields {ADDR_EXTERN,%1.off+$1}
with exact ADDR_LOCAL yields {ADDR_LOCAL,%1.ind+$1}
with exact Rbpreg_off yields {Rbpreg_off,%1.reg,%1.ind+$1}
with REG
gen inc %1 yields %1
with ADDREG
gen killreg %1
yields {Xreg_off, %1, $1}
with exact RADDREG yields {Rreg_off, %1, $1}
pat adp $1==0-1
with exact Xreg_off yields {Xreg_off,%1.reg,%1.off+$1}
with exact Rreg_off yields {Rreg_off,%1.reg,%1.off+$1}
with exact ADDR_EXTERN yields {ADDR_EXTERN,%1.off+$1}
with exact ADDR_LOCAL yields {ADDR_LOCAL,%1.ind+$1}
with exact Rbpreg_off yields {Rbpreg_off,%1.reg,%1.ind+$1}
with REG
gen dec %1 yields %1
with ADDREG
gen killreg %1
yields {Xreg_off, %1, $1}
with exact RADDREG yields {Rreg_off, %1, $1}
pat adp
with exact Xreg_off yields {Xreg_off,%1.reg,%1.off+$1}
with exact Rreg_off yields {Rreg_off,%1.reg,%1.off+$1}
with exact ADDR_EXTERN yields {ADDR_EXTERN,%1.off+$1}
with exact ADDR_LOCAL yields {ADDR_LOCAL,%1.ind+$1}
with exact Rbpreg_off yields {Rbpreg_off,%1.reg,%1.ind+$1}
with ADDREG
gen killreg %1
yields {Xreg_off,%1,$1}
with exact RADDREG yields {Rreg_off, %1, $1}
with REG
gen add %1,{ANYCON,$1} yields %1
pat ads stl $1==2 leaving adi 2 stl $2
pat ads ste $1==2 leaving adi 2 ste $2
pat ads sil $1==2 leaving adi 2 sil $2
pat ads lol stf $1==2 leaving adi 2 lol $2 stf $3
pat ads loe stf $1==2 leaving adi 2 loe $2 stf $3
pat ads $1==2
with exact ANYCON Rreg_off
yields {Rreg_off,%2.reg,%2.off+%1.val}
with exact ANYCON Xreg_off
yields {Xreg_off,%2.reg,%2.off+%1.val}
with exact ADDR_EXTERN Rreg_off
yields {Rreg_off,%2.reg,%2.off+%1.off}
with exact ADDR_EXTERN Xreg_off
yields {Xreg_off,%2.reg,%2.off+%1.off}
with rmorconst Xreg_off
gen add %2.reg,%1 yields %2
with exact ANYCON Rbpreg_off
yields {Rbpreg_off,%2.reg,%2.ind+%1.val}
with Xreg_off rmorconst
gen add %1.reg,%2 yields %1
with exact Xreg_off ANYCON
yields {Xreg_off,%1.reg,%1.off+%2.val}
with exact Rreg_off ANYCON
yields {Rreg_off,%1.reg,%1.off+%2.val}
with exact Xreg_off ADDR_EXTERN
yields {Xreg_off,%1.reg,%1.off+%2.off}
with exact Rreg_off ADDR_EXTERN
yields {Rreg_off,%1.reg,%1.off+%2.off}
with exact Xreg_off reg_off
gen add %1.reg,%2.reg
yields {Xreg_off,%1.reg,%1.off+%2.off}
with exact IREG ADDR_LOCAL
yields {Rbpreg_off, %1, %2.ind}
with exact IREG ADDR_EXTERN
yields {Rreg_off, %1, %2.off}
with exact ADDR_EXTERN IREG
yields {Rreg_off,%2,%1.off}
with exact ADDR_LOCAL IREG
yields {Rbpreg_off,%2,%1.ind}
with exact rmorconst ADDR_EXTERN
uses reusing %1,ADDREG=%1
yields {Xreg_off,%a,%2.off}
with exact ADDR_EXTERN rmorconst
uses reusing %2,ADDREG=%2
yields {Xreg_off,%a,%1.off}
with rmorconst ADDREG
gen add %2,%1 yields %2
with ADDREG rmorconst
gen add %1,%2 yields %1
pat sbs $1==2
with exact ANYCON Xreg_off
yields {Xreg_off,%2.reg,%2.off+"-"+%1.val}
with exact ANYCON Rreg_off
yields {Rreg_off,%2.reg,%2.off+"-"+%1.val}
with exact ANYCON ADDR_LOCAL
yields {ADDR_LOCAL,%2.ind-%1.val}
with rm Xreg_off
gen sub %2.reg,%1 yields {Xreg_off,%2.reg,%2.off}
/* Should not occur
with exact reg_off ANYCON
yields {reg_off,%1.reg,%1.off-%2.val}
with ANYCON ADDR_EXTERN
yields {ADDR_EXTERN,%2.off+%1.val}
with exact ANYCON ADDR_LOCAL
yields {ADDR_LOCAL,%1.val+%2.ind}
*/
with rm REG
gen sub %2,%1 yields %2
with const ACC
gen sub %2,%1 yields %2
/*******************************************************************
* Group 7 : Increment/Decrement Zero *
*******************************************************************/
pat inc
with REG
gen inc %1 yields %1
#ifdef REGVARS
pat inl inreg($1)==reg_any
kills regvar($1)
gen inc {LOCAL,$1,2}
#endif
pat inl
kills indexed,locals %ind+%size > $1 && %ind < $1+2
gen inc {LOCAL, $1, 2}
pat ine
kills indirects
gen inc {EXTERN2, $1}
pat dec
with REG
gen dec %1 yields %1
#ifdef REGVARS
pat del inreg($1)==reg_any
kills regvar($1)
gen dec {LOCAL,$1,2}
#endif
pat del
kills indexed,locals %ind+%size > $1 && %ind < $1+2
gen dec {LOCAL, $1, 2}
pat dee
kills indirects
gen dec {EXTERN2, $1}
pat zrl yields {ANYCON, 0} leaving stl $1
pat zre yields {ANYCON, 0} leaving ste $1
pat zrf leaving zer $1
pat zer $1==2 yields {ANYCON, 0}
pat zer $1==4 yields {ANYCON, 0} {ANYCON, 0}
pat zer $1==6 yields {ANYCON, 0} {ANYCON, 0}
{ANYCON, 0}
pat zer $1==8 yields {ANYCON, 0} {ANYCON, 0}
{ANYCON, 0} {ANYCON, 0}
pat zer defined($1)
with STACK
gen move {ANYCON, $1/2}, cx
move {ANYCON, 0}, bx
1:
push bx
loop {label,1b}
pat zer !defined($1)
with CXREG STACK
gen move {ANYCON, 0}, bx
sar cx,{ANYCON, 1}
1:
push bx
loop {label,1b}
#ifdef REGVARS
proc lolrxxxstl example lol adi stl
with rmorconst
kills regvar($1)
gen axx* {LOCAL, $1, 2}, %1
proc lilrxxxsil example lil adi sil
with regorconst
kills referals
gen axx* {ind_reg2, regvar($1)}, %1
pat lol adi stl $1==$3 && $2==2 && inreg($1)==reg_any call lolrxxxstl("add")
pat lol adu stl $1==$3 && $2==2 && inreg($1)==reg_any call lolrxxxstl("add")
pat lol ads stl $1==$3 && $2==2 && inreg($1)==reg_any call lolrxxxstl("add")
pat lol and stl $1==$3 && $2==2 && inreg($1)==reg_any call lolrxxxstl("and")
pat lol ior stl $1==$3 && $2==2 && inreg($1)==reg_any call lolrxxxstl("or")
pat lol xor stl $1==$3 && $2==2 && inreg($1)==reg_any call lolrxxxstl("xor")
pat lil adi sil $1==$3 && $2==2 && inreg($1)==reg_any call lilrxxxsil("add")
pat lil adu sil $1==$3 && $2==2 && inreg($1)==reg_any call lilrxxxsil("add")
pat lil ads sil $1==$3 && $2==2 && inreg($1)==reg_any call lilrxxxsil("add")
pat lil and sil $1==$3 && $2==2 && inreg($1)==reg_any call lilrxxxsil("and")
pat lil ior sil $1==$3 && $2==2 && inreg($1)==reg_any call lilrxxxsil("or")
pat lil xor sil $1==$3 && $2==2 && inreg($1)==reg_any call lilrxxxsil("xor")
#endif
proc lolxxxstl example lol adi stl
with regorconst
kills indexed,locals %ind+%size > $1 && %ind < $1+2
gen axx* {LOCAL, $1, 2}, %1
pat lol adi stl $1==$3 && $2==2 call lolxxxstl("add")
pat lol adu stl $1==$3 && $2==2 call lolxxxstl("add")
pat lol ads stl $1==$3 && $2==2 call lolxxxstl("add")
pat lol and stl $1==$3 && $2==2 call lolxxxstl("and")
pat lol ior stl $1==$3 && $2==2 call lolxxxstl("or")
pat lol xor stl $1==$3 && $2==2 call lolxxxstl("xor")
proc lilxxxsil example lil adi sil
with regorconst
kills referals
uses ADDREG={LOCAL, $1, 2}
gen axx* {ind_reg2, %a}, %1
killreg %a
pat lil adi sil $1==$3 && $2==2 call lilxxxsil("add")
pat lil adu sil $1==$3 && $2==2 call lilxxxsil("add")
pat lil ads sil $1==$3 && $2==2 call lilxxxsil("add")
pat lil and sil $1==$3 && $2==2 call lilxxxsil("and")
pat lil ior sil $1==$3 && $2==2 call lilxxxsil("or")
pat lil xor sil $1==$3 && $2==2 call lilxxxsil("xor")
#ifdef REGVARS
proc lilruxxsil example lil ngi sil
kills referals
gen uxx* {ind_reg2, regvar($1)}
pat lil ngi sil $1==$3 && $2==2 && inreg($1)==reg_any call lilruxxsil("neg")
pat lil com sil $1==$3 && $2==2 && inreg($1)==reg_any call lilruxxsil("not")
pat lil dec sil $1==$3 && inreg($1)==reg_any call lilruxxsil("dec")
pat lil inc sil $1==$3 && inreg($1)==reg_any call lilruxxsil("inc")
#endif
proc liluxxsil example lil ngi sil
kills referals
uses ADDREG={LOCAL, $1, 2}
gen uxx* {ind_reg2, %a}
killreg %a
pat lil ngi sil $1==$3 && $2==2 call liluxxsil("neg")
pat lil com sil $1==$3 && $2==2 call liluxxsil("not")
pat lil dec sil $1==$3 call liluxxsil("dec")
pat lil inc sil $1==$3 call liluxxsil("inc")
proc loexxxste example loe adi ste
with regorconst
kills indirects
gen axx* {EXTERN2, $1}, %1
pat loe adi ste $1==$3 && $2==2 call loexxxste("add")
pat loe adu ste $1==$3 && $2==2 call loexxxste("add")
pat loe ads ste $1==$3 && $2==2 call loexxxste("add")
pat loe and ste $1==$3 && $2==2 call loexxxste("and")
pat loe ior ste $1==$3 && $2==2 call loexxxste("or")
pat loe xor ste $1==$3 && $2==2 call loexxxste("xor")
proc ldlxxxsdl example ldl adi sdl
with regorconst regorconst
kills indexed,locals %ind+%size > $1 && %ind < $1+4
gen axx[1] {LOCAL,$1,2},%1
axx[2] {LOCAL,$1+2,2},%2
pat ldl adi sdl $1==$3 && $2==4 call ldlxxxsdl("add", "adc")
pat ldl adu sdl $1==$3 && $2==4 call ldlxxxsdl("add", "adc")
pat ldl and sdl $1==$3 && $2==4 call ldlxxxsdl("and", "and")
pat ldl ior sdl $1==$3 && $2==4 call ldlxxxsdl("or", "or")
pat ldl xor sdl $1==$3 && $2==4 call ldlxxxsdl("xor", "xor")
proc ldlcxxsdl example ldl ldc sbi sdl
kills indexed,locals %ind+%size > $1 && %ind < $1+4
gen axx[1] {LOCAL,$1,2},{ANYCON,loww($2)}
axx[2] {LOCAL,$1+2,2},{ANYCON,highw($2)}
pat ldl ldc sbi sdl $1==$4 && $3==4 call ldlcxxsdl("sub", "sbb")
pat ldl ldc sbu sdl $1==$4 && $3==4 call ldlcxxsdl("sub", "sbb")
proc ldexxxsde example lde adi sde
with regorconst regorconst
kills indirects
gen axx[1] {EXTERN2,$1},%1
axx[2] {EXTERN2,$1+2},%2
pat lde adi sde $1==$3 && $2==4 call ldexxxsde("add", "adc")
pat lde adu sde $1==$3 && $2==4 call ldexxxsde("add", "adc")
pat lde and sde $1==$3 && $2==4 call ldexxxsde("and", "and")
pat lde ior sde $1==$3 && $2==4 call ldexxxsde("or", "or")
pat lde xor sde $1==$3 && $2==4 call ldexxxsde("xor", "xor")
#ifdef REGVARS
proc lofrxxxsof example lol lof adi lol stf
with regorconst
kills referals
gen axx* {ind_regoff2, regvar($1), $2}, %1
pat lol lof adi lol stf $1==$4 && $2==$5 && $3==2 && inreg($1)==reg_any
call lofrxxxsof("add")
pat lol lof adu lol stf $1==$4 && $2==$5 && $3==2 && inreg($1)==reg_any
call lofrxxxsof("add")
pat lol lof ads lol stf $1==$4 && $2==$5 && $3==2 && inreg($1)==reg_any
call lofrxxxsof("add")
pat lol lof and lol stf $1==$4 && $2==$5 && $3==2 && inreg($1)==reg_any
call lofrxxxsof("and")
pat lol lof ior lol stf $1==$4 && $2==$5 && $3==2 && inreg($1)==reg_any
call lofrxxxsof("or")
pat lol lof xor lol stf $1==$4 && $2==$5 && $3==2 && inreg($1)==reg_any
call lofrxxxsof("xor")
proc ldfrxxxsdf example lol ldf adi lol sdf
with regorconst regorconst
kills referals
gen axx[1] {ind_regoff2, regvar($1), $2}, %1
axx[2] {ind_regoff2, regvar($1), $2+2}, %2
pat lol ldf adi lol sdf $1==$4 && $2==$5 && $3==4 && inreg($1)==reg_any
call ldfrxxxsdf("add", "adc")
pat lol ldf adu lol sdf $1==$4 && $2==$5 && $3==4 && inreg($1)==reg_any
call ldfrxxxsdf("add", "adc")
pat lol ldf and lol sdf $1==$4 && $2==$5 && $3==4 && inreg($1)==reg_any
call ldfrxxxsdf("and", "and")
pat lol ldf ior lol sdf $1==$4 && $2==$5 && $3==4 && inreg($1)==reg_any
call ldfrxxxsdf("or", "or")
pat lol ldf xor lol sdf $1==$4 && $2==$5 && $3==4 && inreg($1)==reg_any
call ldfrxxxsdf("xor", "xor")
proc ldirxxxsdi example lol loi adi lol sti
with regorconst regorconst
kills referals
gen axx[1] {ind_reg2, regvar($1)}, %1
axx[2] {ind_regoff2, regvar($1), 2}, %2
pat lol loi adi lol sti $1==$4 && $2==4 && $5==4 && $3==4 && inreg($1)==reg_any
call ldirxxxsdi("add", "adc")
pat lol loi adu lol sti $1==$4 && $2==4 && $5==4 && $3==4 && inreg($1)==reg_any
call ldirxxxsdi("add", "adc")
pat lol loi and lol sti $1==$4 && $2==4 && $5==4 && $3==4 && inreg($1)==reg_any
call ldirxxxsdi("and", "and")
pat lol loi ior lol sti $1==$4 && $2==4 && $5==4 && $3==4 && inreg($1)==reg_any
call ldirxxxsdi("or", "or")
pat lol loi xor lol sti $1==$4 && $2==4 && $5==4 && $3==4 && inreg($1)==reg_any
call ldirxxxsdi("xor", "xor")
proc lofruxxsof example lol lof inc lol stf
kills referals
gen uxx* {ind_regoff2, regvar($1), $2}
pat lol lof inc lol stf $1==$4 && $2==$5 && inreg($1)==reg_any
call lofruxxsof("inc")
pat lol lof dec lol stf $1==$4 && $2==$5 && inreg($1)==reg_any
call lofruxxsof("dec")
pat lol lof ngi lol stf $1==$4 && $2==$5 && $3==2 && inreg($1)==reg_any
call lofruxxsof("neg")
pat lol lof com lol stf $1==$4 && $2==$5 && $3==2 && inreg($1)==reg_any
call lofruxxsof("not")
#endif
proc lofuxxsof example lol lof inc lol stf
kills referals
uses ADDREG={LOCAL,$1,2}
gen uxx* {ind_regoff2, %a, $2}
killreg %a
pat lol lof ngi lol stf $1==$4 && $2==$5 && $3==2 call lofuxxsof("neg")
pat lol lof com lol stf $1==$4 && $2==$5 && $3==2 call lofuxxsof("not")
pat lol lof dec lol stf $1==$4 && $2==$5 call lofuxxsof("dec")
pat lol lof inc lol stf $1==$4 && $2==$5 call lofuxxsof("inc")
proc lofxxxsof example lol lof adi lol stf
with regorconstnoaddr
kills referals
uses ADDREG={LOCAL,$1,2}
gen axx* {ind_regoff2, %a, $2}, %1
killreg %a
pat lol lof adi lol stf $1==$4 && $2==$5 && $3==2 call lofxxxsof("add")
pat lol lof adu lol stf $1==$4 && $2==$5 && $3==2 call lofxxxsof("add")
pat lol lof ads lol stf $1==$4 && $2==$5 && $3==2 call lofxxxsof("add")
pat lol lof and lol stf $1==$4 && $2==$5 && $3==2 call lofxxxsof("and")
pat lol lof ior lol stf $1==$4 && $2==$5 && $3==2 call lofxxxsof("or")
pat lol lof xor lol stf $1==$4 && $2==$5 && $3==2 call lofxxxsof("xor")
proc ldfxxxsdf example lol ldf adi lol sdf
with regorconstnoaddr regorconstnoaddr
kills referals
uses ADDREG={LOCAL,$1,2}
gen axx[1] {ind_regoff2, %a, $2}, %1
axx[2] {ind_regoff2, %a, $2+2}, %2
killreg %a
pat lol ldf adi lol sdf $1==$4 && $2==$5 && $3==4 call ldfxxxsdf("add", "adc")
pat lol ldf adu lol sdf $1==$4 && $2==$5 && $3==4 call ldfxxxsdf("add", "adc")
pat lol ldf and lol sdf $1==$4 && $2==$5 && $3==4 call ldfxxxsdf("and", "and")
pat lol ldf ior lol sdf $1==$4 && $2==$5 && $3==4 call ldfxxxsdf("or", "or")
pat lol ldf xor lol sdf $1==$4 && $2==$5 && $3==4 call ldfxxxsdf("xor", "xor")
proc ldixxxsdi example lol loi adi lol sti
with regorconstnoaddr regorconstnoaddr
kills referals
uses ADDREG={LOCAL,$1,2}
gen axx[1] {ind_reg2, %a}, %1
axx[2] {ind_regoff2, %a, 2}, %2
killreg %a
pat lol loi adi lol sti $1==$4 && $2==4 && $5==4 && $3==4
call ldixxxsdi("add", "adc")
pat lol loi adu lol sti $1==$4 && $2==4 && $5==4 && $3==4
call ldixxxsdi("add", "adc")
pat lol loi and lol sti $1==$4 && $2==4 && $5==4 && $3==4
call ldixxxsdi("and", "and")
pat lol loi ior lol sti $1==$4 && $2==4 && $5==4 && $3==4
call ldixxxsdi("or", "or")
pat lol loi xor lol sti $1==$4 && $2==4 && $5==4 && $3==4
call ldixxxsdi("xor", "xor")
proc lefuxxsef example loe lof inc loe stf
kills referals
uses ADDREG={EXTERN2,$1}
gen uxx* {ind_regoff2, %a, $2}
killreg %a
pat loe lof ngi loe stf $1==$4 && $2==$5 && $3==2 call lefuxxsef("neg")
pat loe lof com loe stf $1==$4 && $2==$5 && $3==2 call lefuxxsef("not")
pat loe lof dec loe stf $1==$4 && $2==$5 call lefuxxsef("dec")
pat loe lof inc loe stf $1==$4 && $2==$5 call lefuxxsef("inc")
proc lefxxxsef example loe lof adi loe stf
with regorconstnoaddr
kills referals
uses ADDREG={EXTERN2,$1}
gen axx* {ind_regoff2, %a, $2}, %1
killreg %a
pat loe lof adi loe stf $1==$4 && $2==$5 && $3==2 call lefxxxsef("add")
pat loe lof adu loe stf $1==$4 && $2==$5 && $3==2 call lefxxxsef("add")
pat loe lof ads loe stf $1==$4 && $2==$5 && $3==2 call lefxxxsef("add")
pat loe lof and loe stf $1==$4 && $2==$5 && $3==2 call lefxxxsef("and")
pat loe lof ior loe stf $1==$4 && $2==$5 && $3==2 call lefxxxsef("or")
pat loe lof xor loe stf $1==$4 && $2==$5 && $3==2 call lefxxxsef("xor")
proc leiuxxsei example loe loi inc loe sti
kills referals
uses ADDREG={EXTERN2,$1}
gen uxx* {ind_reg2, %a}
killreg %a
pat loe loi ngi loe sti $1==$4 && $2==2 && $5==2 && $3==2
call leiuxxsei("neg")
pat loe loi com loe sti $1==$4 && $2==2 && $5==2 && $3==2
call leiuxxsei("not")
pat loe loi dec loe sti $1==$4 && $2==2 && $5==2 call leiuxxsei("dec")
pat loe loi inc loe sti $1==$4 && $2==2 && $5==2 call leiuxxsei("inc")
proc leixxxsei example loe loi adi loe sti
with regorconstnoaddr
kills referals
uses ADDREG={EXTERN2,$1}
gen axx* {ind_reg2, %a}, %1
killreg %a
pat loe loi adi loe sti $1==$4 && $2==$5 && $2==2 && $3==2 call leixxxsei("add")
pat loe loi adu loe sti $1==$4 && $2==$5 && $2==2 && $3==2 call leixxxsei("add")
pat loe loi ads loe sti $1==$4 && $2==$5 && $2==2 && $3==2 call leixxxsei("add")
pat loe loi and loe sti $1==$4 && $2==$5 && $2==2 && $3==2 call leixxxsei("and")
pat loe loi ior loe sti $1==$4 && $2==$5 && $2==2 && $3==2 call leixxxsei("or")
pat loe loi xor loe sti $1==$4 && $2==$5 && $2==2 && $3==2 call leixxxsei("xor")
#ifdef REGVARS
proc lolcrxxstl example lol loc sbi stl
kills regvar($1)
gen axx* {LOCAL,$1,2},{ANYCON,$2}
pat lol loc sbi stl $1==$4 && $3==2 && inreg($1)==reg_any
call lolcrxxstl("sub")
pat lol loc sbu stl $1==$4 && $3==2 && inreg($1)==reg_any
call lolcrxxstl("sub")
pat lol loc sli stl $1==$4 && $3==2 && $2==1 && inreg($1)==reg_any
call lolcrxxstl("sal")
pat lol loc slu stl $1==$4 && $3==2 && $2==1 && inreg($1)==reg_any
call lolcrxxstl("sal")
pat lol loc sri stl $1==$4 && $3==2 && $2==1 && inreg($1)==reg_any
call lolcrxxstl("sar")
pat lol loc sru stl $1==$4 && $3==2 && $2==1 && inreg($1)==reg_any
call lolcrxxstl("shr")
proc lolr2shstl example lol loc sli stl
kills regvar($1)
gen axx* {LOCAL,$1,2},{ANYCON,1}
axx* {LOCAL,$1,2},{ANYCON,1}
pat lol loc sli stl $1==$4 && $3==2 && $2==2 && inreg($1)==reg_any
call lolr2shstl("sal")
pat lol loc slu stl $1==$4 && $3==2 && $2==2 && inreg($1)==reg_any
call lolr2shstl("sal")
pat lol loc sri stl $1==$4 && $3==2 && $2==2 && inreg($1)==reg_any
call lolr2shstl("sar")
pat lol loc sru stl $1==$4 && $3==2 && $2==2 && inreg($1)==reg_any
call lolr2shstl("shr")
proc lolrcshstl example lol loc sli stl
kills regvar($1)
uses CXREG = {ANYCON,$2}
gen sxx* {LOCAL,$1,2},cl
pat lol loc sli stl $1==$4 && $3==2 && inreg($1)==reg_any
call lolrcshstl("sal")
pat lol loc slu stl $1==$4 && $3==2 && inreg($1)==reg_any
call lolrcshstl("sal")
pat lol loc sri stl $1==$4 && $3==2 && inreg($1)==reg_any
call lolrcshstl("sar")
pat lol loc sru stl $1==$4 && $3==2 && inreg($1)==reg_any
call lolrcshstl("shr")
#endif
proc lolcxxstl example lol loc sbi stl
kills indexed,locals %ind+%size > $1 && %ind < $1+2
gen axx* {LOCAL,$1,2},{ANYCON,$2}
pat lol loc sbi stl $1==$4 && $3==2 call lolcxxstl("sub")
pat lol loc sbu stl $1==$4 && $3==2 call lolcxxstl("sub")
pat lol loc sli stl $1==$4 && $3==2 && $2==1 call lolcxxstl("sal")
pat lol loc slu stl $1==$4 && $3==2 && $2==1 call lolcxxstl("sal")
pat lol loc sri stl $1==$4 && $3==2 && $2==1 call lolcxxstl("sar")
pat lol loc sru stl $1==$4 && $3==2 && $2==1 call lolcxxstl("shr")
proc lolcshstl example lol loc sli stl
kills indexed,locals %ind+%size > $1 && %ind < $1+2
uses CXREG = {ANYCON,$2}
gen sxx* {LOCAL,$1,2},cl
pat lol loc sli stl $1==$4 && $3==2 call lolcshstl("sal")
pat lol loc slu stl $1==$4 && $3==2 call lolcshstl("sal")
pat lol loc sri stl $1==$4 && $3==2 call lolcshstl("sar")
pat lol loc sru stl $1==$4 && $3==2 call lolcshstl("shr")
proc loecxxste example loe loc sbi ste
kills indirects
gen axx* {EXTERN2,$1},{ANYCON,$2}
pat loe loc sbi ste $1==$4 && $3==2 call loecxxste("sub")
pat loe loc sbu ste $1==$4 && $3==2 call loecxxste("sub")
pat loe loc adu ste $1==$4 && $3==2 call loecxxste("add")
pat loe loc adi ste $1==$4 && $3==2 call loecxxste("add")
pat loe loc sli ste $1==$4 && $3==2 && $2==1 call loecxxste("sal")
pat loe loc slu ste $1==$4 && $3==2 && $2==1 call loecxxste("sal")
pat loe loc sri ste $1==$4 && $3==2 && $2==1 call loecxxste("sar")
pat loe loc sru ste $1==$4 && $3==2 && $2==1 call loecxxste("shr")
proc loecshste example loe loc sli ste
kills indirects
uses CXREG = {ANYCON,$2}
gen sxx* {EXTERN2,$1},cl
pat loe loc sli ste $1==$4 && $3==2 call loecshste("sal")
pat loe loc slu ste $1==$4 && $3==2 call loecshste("sal")
pat loe loc sri ste $1==$4 && $3==2 call loecshste("sar")
pat loe loc sru ste $1==$4 && $3==2 call loecshste("shr")
#ifdef REGVARS
pat lol ngi stl $1==$3 && $2==2 && inreg($1)==reg_any
kills regvar($1)
gen neg {LOCAL, $1, 2}
#endif
pat lol ngi stl $1==$3 && $2==2
kills indexed,locals %ind+%size > $1 && %ind < $1+2
gen neg {LOCAL, $1, 2}
pat ldl ngi sdl $1==$3 && $2==4
kills indexed,locals %ind+%size > $1 && %ind < $1+4
gen neg {LOCAL, $1+2, 2}
neg {LOCAL, $1, 2}
sbb {LOCAL, $1+2, 2}, {ANYCON, 0}
pat lol lol adp stl loi stl $1==$2 && $2==$4 && $5<=2
leaving lol $1 loi $5 stl $6 lol $2 adp $3 stl $4
#ifdef REGVARS
pat lol lol adp stl loi $1==$2 && $2==$4 && $5==1 && inreg($1) > 0
uses REG1 = {ind_reg1, regvar($1)}
yields %a
leaving lol $2 adp $3 stl $4
pat lol lol adp stl loi $1==$2 && $2==$4 && $5==2 && inreg($1) > 0
uses REG = {ind_reg2, regvar($1)}
yields %a
leaving lol $2 adp $3 stl $4
pat adp stl inreg($2) > 0 leaving stl $2 lol $2 adp $1 stl $2
#endif
pat lol lol adp stl $1==$2 && $2==$4
uses ADDREG={LOCAL,$1,2} yields %a
leaving lol $2 adp $3 stl $2
pat lol inl $1==$2
uses REG={LOCAL,$1,2} yields %a
leaving inl $1
pat lol del $1==$2
uses REG={LOCAL,$1,2} yields %a
leaving del $1
pat lol adp stl $1==$3 && $2==1 leaving inl $1
pat lol adp stl $1==$3 && $2==0-1 leaving del $1
pat lol adp stl $1==$3 leaving loc $2 lol $1 adi 2 stl $3
#ifdef REGVARS
pat lol com stl $1==$3 && $2==2 && inreg($1)==reg_any
kills regvar($1)
gen not {LOCAL,$1,2}
#endif
pat lol com stl $1==$3 && $2==2
kills indexed,locals %ind+%size > $1 && %ind < $1+2
gen not {LOCAL, $1, 2}
#ifdef REGVARS
pat lil lil adp sil $1==$2 && $1==$4 && inreg($1)==reg_any
uses ADDREG={ind_reg2, regvar($1)}
yields %a
leaving lil $1 adp $3 sil $4
pat lil lil inc sil $1==$2 && $1==$4 && inreg($1)==reg_any
uses REG={ind_reg2, regvar($1)}
yields %a
leaving lil $1 inc sil $4
pat lil lil dec sil $1==$2 && $1==$4 && inreg($1)==reg_any
uses REG={ind_reg2, regvar($1)}
yields %a
leaving lil $1 dec sil $4
#endif
pat lil adp sil $1==$3 && $2==1 leaving lil $1 inc sil $1
pat lil adp sil $1==$3 && $2==0-1 leaving lil $1 dec sil $1
pat lil adp sil $1==$3 leaving loc $2 lil $1 adi 2 sil $3
pat lol lof adp lol stf $1==$4 && $2==$5 && $3==1
leaving lol $1 lof $2 inc lol $4 stf $5
pat lol lof adp lol stf $1==$4 && $2==$5 && $3==(0-1)
leaving lol $1 lof $2 dec lol $4 stf $5
pat lol lof adp lol stf $1==$4 && $2==$5
leaving loc $3 lol $1 lof $2 adi 2 lol $4 stf $5
#ifdef REGVARS
pat lol lof lol lof adp lol stf
$1==$3 && $1==$6 && $2==$4 && $2==$7 && inreg($1)==reg_any
uses ADDREG={ind_regoff2, regvar($1), $2}
yields %a
leaving lol $1 lof $2 adp $5 lol $6 stf $7
pat lol lof lol lof inc lol stf
$1==$3 && $1==$6 && $2==$4 && $2==$7 && inreg($1)==reg_any
uses REG={ind_regoff2, regvar($1), $2}
yields %a
leaving lol $1 lof $2 inc lol $6 stf $7
pat lol lof lol lof dec lol stf
$1==$3 && $1==$6 && $2==$4 && $2==$7 && inreg($1)==reg_any
uses REG={ind_regoff2, regvar($1), $2}
yields %a
leaving lol $1 lof $2 dec lol $6 stf $7
pat lol lof dup adp lol stf
$1==$5 && $2==$6 && $3==2 && inreg($1)==reg_any
uses ADDREG={ind_regoff2, regvar($1), $2}
yields %a
leaving lol $1 lof $2 adp $4 lol $1 stf $2
pat lol lof dup inc lol stf
$1==$5 && $2==$6 && $3==2 && inreg($1)==reg_any
uses REG={ind_regoff2, regvar($1), $2}
yields %a
leaving lol $1 lof $2 inc lol $1 stf $2
pat lol lof dup dec lol stf
$1==$5 && $2==$6 && $3==2 && inreg($1)==reg_any
uses REG={ind_regoff2, regvar($1), $2}
yields %a
leaving lol $1 lof $2 dec lol $1 stf $2
#endif
pat lol lof dup adp lol stf
$1==$5 && $2==$6 && $3==2 && $4==1
kills referals
uses ADDREG={LOCAL,$1,2}, REG
gen move {ind_regoff2, %a, $2},%b
inc {ind_regoff2, %a, $2}
yields %b
pat loe lof dup adp loe stf
$1==$5 && $2==$6 && $3==2 && $4==1
kills referals
uses ADDREG={EXTERN2,$1}, REG
gen move {ind_regoff2, %a, $2},%b
inc {ind_regoff2, %a, $2}
yields %b
pat loe loi dup adp loe sti
$1==$5 && $2==$6 && $3==2 && $2==2 && $4==1
kills referals
uses ADDREG={EXTERN2,$1}, REG
gen move {ind_reg2, %a},%b
inc {ind_reg2, %a}
yields %b
pat lol lof dup adp lol stf
$1==$5 && $2==$6 && $3==2 && $4==(0-1)
kills referals
uses ADDREG={LOCAL,$1,2}, REG
gen move {ind_regoff2, %a, $2},%b
dec {ind_regoff2, %a, $2}
yields %b
pat loe lof dup adp loe stf
$1==$5 && $2==$6 && $3==2 && $4==(0-1)
kills referals
uses ADDREG={EXTERN2,$1}, REG
gen move {ind_regoff2, %a, $2},%b
dec {ind_regoff2, %a, $2}
yields %b
pat loe loi dup adp loe sti
$1==$5 && $2==$6 && $3==2 && $2==2 && $4==(0-1)
kills referals
uses ADDREG={EXTERN2,$1}, REG
gen move {ind_reg2, %a},%b
dec {ind_reg2, %a}
yields %b
pat lol lof dup adp lol stf
$1==$5 && $2==$6 && $3==2
kills referals
uses ADDREG={LOCAL,$1,2}, REG
gen move {ind_regoff2, %a, $2},%b
add {ind_regoff2, %a, $2}, {ANYCON, $4}
yields %b
pat loe lof dup adp loe stf
$1==$5 && $2==$6 && $3==2
kills referals
uses ADDREG={EXTERN2,$1}, REG
gen move {ind_regoff2, %a, $2},%b
add {ind_regoff2, %a, $2}, {ANYCON, $4}
yields %b
pat loe loi dup adp loe sti
$1==$5 && $2==$6 && $3==2 && $2==2
kills referals
uses ADDREG={EXTERN2,$1}, REG
gen move {ind_reg2, %a},%b
add {ind_reg2, %a}, {ANYCON, $4}
yields %b
pat loe ngi ste $1==$3 && $2==2
kills indirects
gen neg {EXTERN2, $1}
pat lde ngi sde $1==$3 && $2==4
kills indirects
gen neg {EXTERN2, $1+2}
neg {EXTERN2, $1}
sbb {EXTERN2, $1+2}, {ANYCON, 0}
pat loe loe adp ste $1==$2 && $1==$4
uses ADDREG={EXTERN2,$1} yields %a
leaving loe $1 adp $3 ste $1
pat loe ine $1==$2
uses REG={EXTERN2,$1} yields %a leaving ine $1
pat loe dee $1==$2
uses REG={EXTERN2,$1} yields %a leaving dee $1
pat loe adp ste $1==$3 && $2==1 leaving ine $1
pat loe adp ste $1==$3 && $2==0-1 leaving dee $1
pat loe adp ste $1==$3 leaving loc $2 loe $1 adi 2 ste $3
pat loe com ste $1==$3 && $2==2
kills indirects
gen not {EXTERN2, $1}
pat loe lof adp loe stf $1==$4 && $2==$5 && $3==1
leaving loe $1 lof $2 inc loe $1 stf $2
pat loe lof adp loe stf $1==$4 && $2==$5 && $3==0-1
leaving loe $1 lof $2 dec loe $1 stf $2
pat loe lof adp loe stf $1==$4 && $2==$5
leaving loc $3 loe $1 lof $2 adi 2 loe $1 stf $2
pat loe loi adp loe sti $1==$4 && $2==$5 && $3==1 && $2==2
leaving loe $1 loi $2 inc loe $1 sti $2
pat loe loi adp loe sti $1==$4 && $2==$5 && $3==0-1 && $2==2
leaving loe $1 loi $2 dec loe $1 sti $2
pat loe loi adp loe sti $1==$4 && $2==$5 && $2==2
leaving loc $3 loe $1 loi $2 adi 2 loe $1 sti $2
/*******************************************************************
* Group 8: Convert Instructions *
*******************************************************************/
pat cii
with CXREG DXREG ACC
kills ALL
gen joehoe {label,".cii"} yields %3
pat ciu leaving cuu
pat cui leaving cuu
pat cuu
with CXREG DXREG ACC
kills ALL
gen joehoe {label,".cuu"} yields %3
pat loc loc cii zeq $1==1 && $2==2
with GENREG
gen test %1.1
je {label, $4}
pat loc loc cii zne $1==1 && $2==2
with GENREG
gen test %1.1
jne {label, $4}
pat loc loc cii loc and zeq $4<256 && $4>=0 && $5==2 && $1==1 && $2==2
leaving loc $4 and $5 zeq $6
pat loc loc cii loc and zne $4<256 && $4>=0 && $5==2 && $1==1 && $2==2
leaving loc $4 and $5 zne $6
pat loc loc cii $1==1 && $2==2
with ACC
gen cbw. yields ax
with exact rmorconst1 ACC
uses REG
gen move %2,%a
move %1,%2.1
cbw. yields %a ax
with exact rmorconst1
uses reusing %1, ACC1=%1
gen cbw. yields ax
pat loc loc cii $1==1 && $2==4
with ACC
uses DXREG
gen cbw.
cwd. yields dx ax
with exact rmorconst1
uses reusing %1, ACC1=%1, DXREG
gen cbw.
cwd. yields dx ax
pat loc loc cii $1==2 && $2==4
with ACC
uses DXREG
gen cwd. yields dx ax
pat loc loc cii $1==4 && $2==2
with a_word a_word yields %1
pat loc loc ciu leaving loc $1 loc $2 cuu
pat loc loc cui leaving loc $1 loc $2 cuu
pat loc loc cuu $1==$2
pat loc loc cuu $1==2 && $2==4
with a_word yields {ANYCON,0} %1
pat loc loc cuu $1==4 && $2==2
with a_word a_word yields %1
pat loc loc cif $1==2 && $2==4 leaving loc $1 cal ".cif4"
pat loc loc cif $1==4 && $2==4 leaving loc $1 cal ".cif4" asp 2
pat loc loc cif $1==2 && $2==8
with REG
kills ALL
gen push %1
push %1
push %1 leaving loc $1 cal ".cif8"
pat loc loc cif $1==4 && $2==8
with REG REG
kills ALL
gen push %1
push %2
push %1 leaving loc $1 cal ".cif8"
pat loc loc cuf $1==2 && $2==4 leaving loc $1 cal ".cuf4"
pat loc loc cuf $1==4 && $2==4 leaving loc $1 cal ".cuf4" asp 2
pat loc loc cuf $1==2 && $2==8
with REG
kills ALL
gen push %1
push %1
push %1 leaving loc $1 cal ".cuf8"
pat loc loc cuf $1==4 && $2==8
with REG REG
kills ALL
gen push %1
push %2
push %1 leaving loc $1 cal ".cuf8"
pat loc loc cfi $1==4 && $2==2 leaving loc $1 loc $2 cal ".cfi" asp 8 lfr 2
pat loc loc cfi $2==4 leaving loc $1 loc $2 cal ".cfi" asp $1
pat loc loc cfi $1==8 && $2==2 leaving loc $1 loc $2 cal ".cfi" asp 12 lfr 2
pat loc loc cfu $1==4 && $2==2 leaving loc $1 loc $2 cal ".cfu" asp 8 lfr 2
pat loc loc cfu $2==4 leaving loc $1 loc $2 cal ".cfu" asp $1
pat loc loc cfu $1==8 && $2==2 leaving loc $1 loc $2 cal ".cfu" asp 12 lfr 2
pat loc loc cff $1==8 && $2==4 leaving cal ".cff4" asp 4
pat loc loc cff $1==4 && $2==8
with REG REG
kills ALL
uses REG={ANYCON,0}
gen push %a
push %a
push %2
push %1 leaving cal ".cff8"
/********************************************************************
* Group 9 : Logical Instructions *
********************************************************************/
pat and $1==2
with REG rmorconst
gen and %1,%2 yields %1
with rmorconst REG
gen and %2,%1 yields %2
pat loc and $1==65535 && $2==2
pat loc and $1==255 && $2==2
with GENREG yields %1.1
pat loc and $1==0 && $2==2 leaving asp 2 loc 0
pat and $1==4
with EXACT REG REG rmorconst rmorconst
gen and %1,%3
and %2,%4 yields %2 %1
with rmorconst rmorconst REG REG
gen and %3,%1
and %4,%2 yields %4 %3
pat ldc and highw($1)==(0-1) && $2==4 leaving loc loww($1) and 2
pat ldc and loww($1)==0 && $2==4 leaving asp 2 loc highw($1) and 2 loc 0
pat ldc and loww($1)==65535 && $2==4
with rmorconst REG
gen and %2,{ANYCON, highw($1)} yields %2 %1
pat ldc and highw($1)==0 && $2==4
with REG rmorconst
gen and %1,{ANYCON, loww($1)} yields {ANYCON,0} %1
pat and defined($1)
kills ALL
gen mov cx,{ANYCON,$1}
joehoe {label, ".and"}
pat and !defined($1)
with CXREG
kills ALL
gen joehoe {label, ".and"}
pat ior $1==2
with REG rmorconst
gen or %1,%2 yields %1
with rmorconst REG
gen or %2,%1 yields %2
pat loc ior $1==0 && $2==2
pat loc ior $1==65535 && $2==2 leaving asp 2 loc $1
pat ior $1==4
with EXACT REG REG rmorconst rmorconst
gen or %1,%3
or %2,%4 yields %2 %1
with rmorconst rmorconst REG REG
gen or %3,%1
or %4,%2 yields %4 %3
pat ldc ior highw($1)==(0-1) && $2==4
with REG rmorconst
gen or %1,{ANYCON, loww($1)} yields {ANYCON,0-1} %1
pat ldc ior highw($1)==0 && $2==4 leaving loc loww($1) ior 2
pat ldc ior loww($1)==65535 && $2==4 leaving asp 2 loc highw($1) ior 2 loc 0-1
pat ldc ior loww($1)==0 && $2==4
with rmorconst REG
gen or %2,{ANYCON, highw($1)} yields %2 %1
pat ior defined($1)
kills ALL
gen mov cx,{ANYCON,$1}
joehoe {label, ".ior"}
pat ior !defined($1)
with CXREG
kills ALL
gen joehoe {label, ".ior"}
pat xor $1==2
with REG rmorconst
gen xor %1,%2 yields %1
with rmorconst REG
gen xor %2,%1 yields %2
pat xor $1==4
with EXACT REG REG rmorconst rmorconst
gen xor %1,%3
xor %2,%4 yields %2 %1
with rmorconst rmorconst REG REG
gen xor %3,%1
xor %4,%2 yields %4 %3
pat xor defined($1)
kills ALL
gen mov cx,{ANYCON,$1}
joehoe {label, ".xor"}
pat xor !defined($1)
with CXREG
kills ALL
gen joehoe {label, ".xor"}
pat com $1==2
with REG
gen not %1 yields %1
pat com $1==4
with REG REG
gen not %2
not %1 yields %2 %1
pat com defined($1)
kills ALL
gen mov cx,{ANYCON,$1}
joehoe {label, ".com"}
pat com !defined($1)
with CXREG
kills ALL
gen joehoe {label, ".com"}
pat loc rol $1==1 && $2==2
with REG
gen rol %1,{ANYCON,1} yields %1
pat rol $1==2
with SHIFT_CREG REG
gen rol %2,cl yields %2
pat rol $1==4
with CXREG REG REG
gen jcxz {label, 1f}
2: sal %2,{ANYCON,1}
rcl %3,{ANYCON,1}
adc %2,{ANYCON,0}
loop {label, 2b}
1:
pat loc ror $1==1 && $2==2
with REG
gen ror %1,{ANYCON,1} yields %1
pat ror $1==2
with SHIFT_CREG REG
gen ror %2,cl yields %2
pat ror $1==4
with CXREG REG REG
gen jcxz {label, 1f}
neg cx
add cx,{ANYCON,32}
2: sal %2,{ANYCON,1}
rcl %3,{ANYCON,1}
adc %2,{ANYCON,0}
loop {label, 2b}
1:
/*******************************************************************
* Group 10 : Set Instructions *
*******************************************************************/
pat inn $1==2
with SHIFT_CREG REG
gen shr %2,cl
and %2,{ANYCON, 1} yields %2
pat loc inn $1==1 && $2==2
with REG
gen shr %1,{ANYCON, 1}
and %1,{ANYCON, 1} yields %1
pat loc inn $1==0 && $2==2
with REG
gen and %1,{ANYCON, 1} yields %1
pat inn defined($1)
with ACC
kills ALL
gen mov cx,{ANYCON, $1}
joehoe {label,".inn"} yields ax
pat inn !defined($1)
with CXREG ACC
kills ALL
gen joehoe {label,".inn"} yields ax
pat loc inn zeq $2==2
with rm STACK
gen check %1,{ANYCON,1<<$1}
je {label,$3}
pat loc inn zne $2==2
with rm STACK
gen check %1,{ANYCON,1<<$1}
jne {label,$3}
pat set $1==2
with SHIFT_CREG
uses REG={ANYCON, 1}
gen shl %a,cl yields %a
pat set defined($1)
with ACC
kills ALL
gen mov cx,{ANYCON, $1}
joehoe {label,".set"}
pat set !defined($1)
with CXREG ACC
kills ALL
gen joehoe {label,".set"}
/********************************************************************
* Group 11 : Array Instructions *
********************************************************************/
pat lae aar $2==2 && rom($1,3)==1 && rom($1,1)==0
leaving ads 2
pat lae aar $2==2 && rom($1,3)==1 && rom($1,1)!=0
leaving adp 0-rom($1,1) ads 2
pat lae aar $2==2 && rom($1,3)==2 && rom($1,1)==0
with ADDREG
gen sal %1,{ANYCON,1} yields %1 leaving ads 2
pat lae aar $2==2 && rom($1,3)==2 && rom($1,1)!=0
with ADDREG
gen sal %1,{ANYCON,1} yields %1 leaving adp 0-2*rom($1,1) ads 2
pat lae aar $2==2 && rom($1,3)==4 && rom($1,1)==0
with ADDREG
gen sal %1,{ANYCON,1}
sal %1,{ANYCON,1} yields %1 leaving ads 2
pat lae aar $2==2 && rom($1,3)==4 && rom($1,1)!=0
with ADDREG
gen sal %1,{ANYCON,1}
sal %1,{ANYCON,1} yields %1 leaving adp 0-4*rom($1,1) ads 2
pat lae aar $2==2 && rom($1,1)==0
with ACC
uses DXREG,REG={ANYCON,rom($1,3)}
gen mul %b yields %1 leaving ads 2
pat lae aar $2==2 && defined(rom($1,1))
with ACC
uses DXREG,REG={ANYCON,rom($1,3)}
gen mul %b yields %1
leaving adp 0-rom($1,1)*rom($1,3) ads 2
pat loc sli ads sti $1==1 && $2==2 && $3==2
with exact rmorconst ADDR_EXTERN
uses reusing %1,ADDREG=%1
gen sal %a,{ANYCON,1} yields {Xreg_off,%a,%2.off}
leaving sti $4
with ADDREG rmorconst
gen sal %1,{ANYCON,1}
add %1,%2 yields %1 leaving sti $4
with REG ADDREG
gen sal %1,{ANYCON,1}
add %2,%1 yields %2 leaving sti $4
pat loc sli ads $1==1 && $2==2 && $3==2
with exact rmorconst ADDR_EXTERN
uses reusing %1,ADDREG=%1
gen sal %a,{ANYCON,1} yields {Xreg_off,%a,%2.off}
with ADDREG rmorconst
gen sal %1,{ANYCON,1}
add %1,%2 yields %1
with REG ADDREG
gen sal %1,{ANYCON,1}
add %2,%1 yields %2
with REG rmorconst
gen sal %1,{ANYCON,1}
add %1,%2 yields %1
pat loc sli ads sti $1==2 && $2==2 && $3==2
with exact rmorconst ADDR_EXTERN
uses reusing %1,ADDREG=%1
gen sal %a,{ANYCON,1}
sal %a,{ANYCON,1} yields {Xreg_off,%a,%2.off}
leaving sti $4
with ADDREG rmorconst
gen sal %1,{ANYCON,1}
sal %1,{ANYCON,1}
add %1,%2 yields %1 leaving sti $4
with REG ADDREG
gen sal %1,{ANYCON,1}
sal %1,{ANYCON,1}
add %2,%1 yields %2 leaving sti $4
pat loc sli ads $1==2 && $2==2 && $3==2
with exact rmorconst ADDR_EXTERN
uses reusing %1,ADDREG=%1
gen sal %a,{ANYCON,1}
sal %a,{ANYCON,1} yields {Xreg_off,%a,%2.off}
with ADDREG rmorconst
gen sal %1,{ANYCON,1}
sal %1,{ANYCON,1}
add %1,%2 yields %1
with REG ADDREG
gen sal %1,{ANYCON,1}
sal %1,{ANYCON,1}
add %2,%1 yields %2
with REG rmorconst
gen sal %1,{ANYCON,1}
sal %1,{ANYCON,1}
add %1,%2 yields %1
pat loc sli ads sti $2==2 && $3==2
with exact rmorconst ADDR_EXTERN
uses reusing %1,ADDREG=%1,CXREG={ANYCON,$1}
gen sal %a,cl yields {Xreg_off,%a,%2.off}
leaving sti $4
with ADDREG rmorconst
uses CXREG={ANYCON,$1}
gen sal %1,cl
add %1,%2 yields %1 leaving sti $4
with REG ADDREG
uses CXREG={ANYCON,$1}
gen sal %1,cl
add %2,%1 yields %2 leaving sti $4
pat loc sli ads $2==2 && $3==2
with exact rmorconst ADDR_EXTERN
uses reusing %1,ADDREG=%1,CXREG={ANYCON,$1}
gen sal %a,cl yields {Xreg_off,%a,%2.off}
with ADDREG rmorconst
uses CXREG={ANYCON,$1}
gen sal %1,cl
add %1,%2 yields %1
with REG ADDREG
uses CXREG={ANYCON,$1}
gen sal %1,cl
add %2,%1 yields %2
with REG rmorconst
uses CXREG={ANYCON,$1}
gen sal %1,cl
add %1,%2 yields %1
pat aar $1==2
with AREG ACC
uses DXREG
gen sub %2,{ind_reg2,%1}
mul {ind_regoff2,%1,4} yields %2 leaving ads 2
with reg_off ACC
uses DXREG
gen sub %2,{ind_regoff2, %1.reg, %1.off}
mul {ind_regoff2, %1.reg, 4+%1.off}
yields %2 leaving ads 2
with bpreg_off ACC
uses DXREG
gen sub %2,{ind_bpregoff2, %1.reg, %1.ind}
mul {ind_bpregoff2, %1.reg, 4+%1.ind}
yields %2 leaving ads 2
with ADDR_LOCAL ACC
uses DXREG
gen sub %2,{LOCAL,%1.ind,2}
mul {LOCAL, 4+%1.ind,2} yields %2 leaving ads 2
with ADDR_EXTERN ACC
uses DXREG
gen sub %2,{EXTERN2,%1.off}
mul {EXTERN2,4+%1.off} yields %2 leaving ads 2
pat lae lar defined(rom($1,3)) leaving lae $1 aar $2 loi rom($1,3)
pat lae sar defined(rom($1,3)) leaving lae $1 aar $2 sti rom($1,3)
pat aar !defined($1)
kills ALL
gen joehoe {label,".iaar"} yields bx
pat sar $1==2
with BXREG ACC
kills ALL
gen joehoe {label,".sar2"}
pat sar !defined($1)
kills ALL
gen joehoe {label,".isar"}
pat lar $1==2
with BXREG ACC
kills ALL
gen joehoe {label,".lar2"}
pat lar !defined($1)
kills ALL
gen joehoe {label,".ilar"}
/*******************************************************************
* Group 12 : Compare Instructions *
*******************************************************************/
pat cmi $1==2
with EXACT register rmorconst
uses REG={ANYCON,0}
gen cmp %1,%2
je {label,2f}
jl {label,1f}
inc %a
jmp {label,2f}
1:
dec %a
2: yields %a
with rmorconst register
uses REG={ANYCON,0}
gen cmp %2,%1
je {label,2f}
jg {label,1f}
inc %a
jmp {label,2f}
1:
dec %a
2: yields %a
pat cmi $1==4
kills ALL
gen joehoe {label,".cmi4"} yields ax
pat cmu $1==2 leaving cmp
pat cmu $1==4
kills ALL
gen joehoe {label,".cmu4"} yields ax
pat cms $1==2
with EXACT REG rmorconst
gen sub %1,%2 yields %1
with rmorconst REG
gen sub %2,%1 yields %2
pat cms $1==4
with rmorconst rmorconst REG REG
gen sub %3,%1
sbb %4,%2
or %4,%3 yields %4
with EXACT REG REG rmorconst rmorconst
gen sub %1,%3
sbb %2,%4
or %2,%1 yields %2
pat cms defined($1)
kills ALL
gen mov cx,{ANYCON,$1}
joehoe {label,".cms"} yields cx
pat cms !defined($1)
with CXREG
kills ALL
gen joehoe {label,".cms"} yields cx
pat cmf $1==4
kills ALL
gen joehoe {label,".cmf4"} leaving asp 8 lfr 2
pat cmf $1==8
kills ALL
gen joehoe {label,".cmf8"} leaving asp 16 lfr 2
pat cmp
with EXACT register rmorconst
uses REG = {ANYCON,0}
gen cmp %1,%2
je {label,2f}
jb {label,1f}
inc %a
jmp {label,2f}
1: dec %a
2: yields %a
with rmorconst register
uses REG = {ANYCON,0}
gen cmp %2,%1
je {label,2f}
ja {label,1f}
inc %a
jmp {label,2f}
1: dec %a
2: yields %a
proc txx
with rm
uses REG = {ANYCON,0}
gen test %1
jxx* {label,1f}
inc %a
1: yields %a
pat tlt call txx("jge")
pat tle call txx("jg")
pat teq call txx("jne")
pat tne call txx("je")
pat tge call txx("jl")
pat tgt call txx("jle")
proc txxior
with rm REG
gen test %1
jxx* {label,1f}
or %2,{ANYCON,1}
1: yields %2
pat tlt ior $2==2 call txxior("jge")
pat tle ior $2==2 call txxior("jg")
pat teq ior $2==2 call txxior("jne")
pat tne ior $2==2 call txxior("je")
pat tge ior $2==2 call txxior("jl")
pat tgt ior $2==2 call txxior("jle")
proc cmixxior
with regorconst rm REG
gen cmp %2,%1
jxx* {label,1f}
or %3,{ANYCON,1}
1: yields %3
pat cmi tlt ior $1==2 && $3==2 call cmixxior("jge")
pat cmi tle ior $1==2 && $3==2 call cmixxior("jg")
pat cmi teq ior $1==2 && $3==2 call cmixxior("jne")
pat cmi tne ior $1==2 && $3==2 call cmixxior("je")
pat cmi tge ior $1==2 && $3==2 call cmixxior("jl")
pat cmi tgt ior $1==2 && $3==2 call cmixxior("jle")
proc cmxtxx
with regorconst rm
uses REG = {ANYCON,0}
gen cmp %2,%1
jxx[1] {label,1f}
inc %a
1: yields %a
with rm regorconst
uses REG = {ANYCON,0}
gen cmp %1,%2
jxx[2] {label,1f}
inc %a
1: yields %a
pat cmi tlt $1==2 call cmxtxx("jge","jle")
pat cmi tle $1==2 call cmxtxx("jg","jl")
pat cmi teq $1==2 call cmxtxx("jne","jne")
pat cmi tne $1==2 call cmxtxx("je","je")
pat cmi tge $1==2 call cmxtxx("jl","jg")
pat cmi tgt $1==2 call cmxtxx("jle","jge")
pat cmp tlt call cmxtxx("jae","jbe")
pat cmp tle call cmxtxx("ja","jb")
pat cmp teq call cmxtxx("jne","jne")
pat cmp tne call cmxtxx("je","je")
pat cmp tge call cmxtxx("jb","ja")
pat cmp tgt call cmxtxx("jbe","jae")
pat cms teq $1==2 call cmxtxx("jne","jne")
pat cms tne $1==2 call cmxtxx("je","je")
proc cmxzxx example cmp zlt
with regorconst rm STACK
gen cmp %2,%1
jxx[1] {label,$2}
with rm regorconst STACK
gen cmp %1,%2
jxx[2] {label,$2}
pat cmp zlt call cmxzxx("jb","ja")
pat cmp zle call cmxzxx("jbe","jae")
pat cmp zeq call cmxzxx("je","je")
pat cmp zne call cmxzxx("jne","jne")
pat cmp zge call cmxzxx("jae","jbe")
pat cmp zgt call cmxzxx("ja","jb")
pat cms zeq $1==2 call cmxzxx("je","je")
pat cms zne $1==2 call cmxzxx("jne","jne")
proc cmx4zxx example cmi zlt
with regorconst regorconst rm rm STACK
gen cmp %4,%2
jxx[1] {label,$2}
jne {label,1f}
cmp %3,%1
jxx[2] {label,$2}
1:
with rm rm regorconst regorconst STACK
gen cmp %2,%4
jxx[3] {label,$2}
jne {label,1f}
cmp %1,%3
jxx[4] {label,$2}
1:
pat cmi zlt $1==4 call cmx4zxx("jl", "jb", "jg", "ja")
pat cmi zle $1==4 call cmx4zxx("jl", "jbe", "jg", "jae")
pat cmi zgt $1==4 call cmx4zxx("jg", "ja", "jl", "jb")
pat cmi zge $1==4 call cmx4zxx("jg", "jae", "jl", "jbe")
pat cmu zlt $1==4 call cmx4zxx("jb", "jb", "ja", "ja")
pat cmu zle $1==4 call cmx4zxx("jb", "jbe", "ja", "jae")
pat cmu zgt $1==4 call cmx4zxx("ja", "ja", "jb", "jb")
pat cmu zge $1==4 call cmx4zxx("ja", "jae", "jb", "jbe")
pat ldc cmi zlt highw($1)==0 && loww($1)==0 && $2==4
with rmorconst rmorconst yields %2 leaving zlt $3
pat ldc cmi tlt highw($1)==0 && loww($1)==0 && $2==4
with rmorconst rmorconst yields %2 leaving tlt
pat ldc cmi zge highw($1)==0 && loww($1)==0 && $2==4
with rmorconst rmorconst yields %2 leaving zge $3
pat ldc cmi tge highw($1)==0 && loww($1)==0 && $2==4
with rmorconst rmorconst yields %2 leaving tge $3
pat ldc cmi tle highw($1)==0 && loww($1)==0 && $2==4
with rmorconst rmorconst
uses REG = {ANYCON, 0}
gen cmp %a,%2
jg {label,2f}
jl {label,1f}
cmp %a,%1
jne {label,1f}
2:
inc %a
1: yields %a
pat ldc cmi tgt highw($1)==0 && loww($1)==0 && $2==4
with rmorconst rmorconst
uses REG = {ANYCON, 0}
gen cmp %a,%2
jl {label,2f}
jg {label,1f}
cmp %a,%1
je {label,1f}
2:
inc %a
1: yields %a
pat loc ldc cms zeq $3==4 && $1==0 && loww($2)==0 && highw($2)==0
with REG STACK
gen test %1
je {label,$4}
pat loc ldc cms zne $3==4 && $1==0 && loww($2)==0 && highw($2)==0
with REG STACK
gen test %1
jne {label,$4}
pat loc ldc cms teq $3==4 && $1==0 && loww($2)==0 && highw($2)==0
with REG
uses REG = {ANYCON, 0}
gen test %1
jne {label,1f}
inc %a
1: yields %a
pat loc ldc cms tne $3==4 && $1==0 && loww($2)==0 && highw($2)==0
with REG
gen test %1
je {label,1f}
mov %1,{ANYCON,1}
1: yields %1
pat ldc cms zeq $2==4 && loww($1)==0 && highw($1)==0
with rmorconst REG STACK
gen or %2,%1
je {label,$3}
with REG rmorconst STACK
gen or %1,%2
je {label,$3}
pat ldc cms zne $2==4 && loww($1)==0 && highw($1)==0
with rmorconst REG STACK
gen or %2,%1
jne {label,$3}
with REG rmorconst STACK
gen or %1,%2
jne {label,$3}
pat ldc cms teq $2==4 && loww($1)==0 && highw($1)==0
with rmorconst REG
uses REG = {ANYCON, 0}
gen or %2,%1
jne {label,1f}
inc %a
1: yields %a
with REG rmorconst
uses REG = {ANYCON, 0}
gen or %1,%2
jne {label,1f}
inc %a
1: yields %a
pat ldc cms tne $2==4 && loww($1)==0 && highw($1)==0
with rmorconst REG
gen or %2,%1
je {label,1f}
mov %2,{ANYCON,1}
1: yields %2
with REG rmorconst
gen or %1,%2
je {label,1f}
mov %1,{ANYCON,1}
1: yields %1
pat ldc cms zeq $2==4 && loww($1)==65535 && highw($1)==(0-1)
with rmorconst REG STACK
gen and %2,%1
cmp %2,{ANYCON,0-1}
je {label,$3}
with REG rmorconst STACK
gen and %1,%2
cmp %1,{ANYCON,0-1}
je {label,$3}
pat ldc cms zne $2==4 && loww($1)==65535 && highw($1)==(0-1)
with rmorconst REG STACK
gen and %2,%1
cmp %2,{ANYCON,0-1}
jne {label,$3}
with REG rmorconst STACK
gen and %1,%2
cmp %1,{ANYCON,0-1}
jne {label,$3}
pat cms zne $1==4
with regorconst regorconst rm rm STACK
gen cmp %3,%1
jne {label,$2}
cmp %4,%2
jne {label,$2}
with rm rm regorconst regorconst STACK
gen cmp %1,%3
jne {label,$2}
cmp %2,%4
jne {label,$2}
pat cms zeq $1==4
with regorconst regorconst rm rm STACK
gen cmp %3,%1
jne {label, 1f}
cmp %4,%2
je {label,$2}
1:
with rm rm regorconst regorconst STACK
gen cmp %1,%3
jne {label,1f}
cmp %2,%4
je {label,$2}
1:
proc andzxx example and zeq
with regorconst rm STACK
gen check %2,%1
jxx* {label,$2}
with exact rm regorconst
kills ALL
gen check %1,%2
jxx* {label,$2}
pat and zeq $1==2 call andzxx("je")
pat and zne $1==2 call andzxx("jne")
proc locandzxx example loc and zeq
with rm12 STACK
gen testb %1,{ANYCON,$1}
jxx* {label,$3}
with GENREG STACK
gen testb %1.1,{ANYCON,$1}
jxx* {label,$3}
with exact IREG
kills ALL
gen check %1,{ANYCON,$1}
jxx* {label,$3}
pat loc and zeq $1<256 && $1>=0 && $2==2 call locandzxx("je")
pat loc and zne $1<256 && $1>=0 && $2==2 call locandzxx("jne")
proc locbxx example loc beq
with rm1 STACK
gen cmpb %1,{ANYCON,$1}
jxx* {label,$2}
with rm STACK
gen cmp %1,{ANYCON,$1}
jxx* {label,$2}
pat loc beq $1<256 && $1>=0 call locbxx("je")
pat loc bne $1<256 && $1>=0 call locbxx("jne")
proc loccmuzxx example loc cmu zeq
with rm1 STACK
gen cmpb %1,{ANYCON,$1}
jxx* {label,$3}
with rm STACK
gen cmp %1,{ANYCON,$1}
jxx* {label,$3}
pat loc cmu zeq $1<256 && $1>=0 && $2==2 call loccmuzxx("je")
pat loc cmu zne $1<256 && $1>=0 && $2==2 call loccmuzxx("jne")
/*******************************************************************
* Group 13 : Branch Instructions *
*******************************************************************/
pat lab topeltsize($1)==2 && !fallthrough($1)
with STACK
kills ALL
gen labeldef $1 yields ax
pat lab topeltsize($1)==2 && fallthrough($1)
with ACC STACK
kills ALL
gen labeldef $1 yields ax
pat lab topeltsize($1)!=2
with STACK
kills ALL
gen labeldef $1
pat bra topeltsize($1)==2
with ACC STACK
gen jmp {label,$1}
pat bra topeltsize($1)!=2
with STACK
gen jmp {label,$1}
proc bxx example blt
with regorconst rm STACK
gen cmp %2,%1
jxx[1] {label,$1}
with rm regorconst STACK
gen cmp %1,%2
jxx[2] {label,$1}
pat blt call bxx("jl","jg")
pat ble call bxx("jle","jge")
pat bge call bxx("jge","jle")
pat bgt call bxx("jg","jl")
proc bex example beq
with regorconst rm STACK
gen cmp %2,%1
jxx[1] {label,$1}
with rm regorconst STACK
gen cmp %1,%2
jxx[2] {label,$1}
with exact rm1 REG1
kills ALL
gen cmpb %1,%2
jxx[2] {label,$1}
with exact REG1 rm1
kills ALL
gen cmpb %2,%1
jxx[1] {label,$1}
pat beq call bex("je","je")
pat bne call bex("jne","jne")
proc zxx example zlt
with rm STACK
gen test %1
jxx* {label,$1}
pat zlt call zxx("jl")
pat zle call zxx("jle")
pat zge call zxx("jge")
pat zgt call zxx("jg")
pat zne
with rm+rm1 STACK
gen test %1
jne {label,$1}
pat zeq
with rm+rm1 STACK
gen test %1
je {label,$1}
/*******************************************************************
* Group 14 : Procedure-call Instructions *
*******************************************************************/
pat cal
kills ALL
gen joehoe {label,$1}
pat cai
with rm
kills ALL
gen joehoe %1
#ifdef REGVARS
pat lfr adi stl $1==2 && $2==2 && inreg($3) > 0
kills ALL
gen pop {LOCAL,$3,2}
add {LOCAL,$3,2}, ax
#endif
pat lfr $1==2 yields ax
pat lfr $1==4 yields dx ax
pat lfr $1==6
kills ALL
gen joehoe {label, ".lfr6"}
pat lfr $1==8
kills ALL
gen joehoe {label, ".lfr8"}
pat ret $1==0
kills ALL
gen
#ifdef REGVARS
return
#else
mov sp,bp
pop bp
ret.
#endif
pat ret $1==2
with ACC
kills ALL
gen
#ifdef REGVARS
return
#else
mov sp,bp
pop bp
ret.
#endif
pat ret $1==4
with ACC DXREG
kills ALL
gen
#ifdef REGVARS
return
#else
mov sp,bp
pop bp
ret.
#endif
pat ret $1==6
with STACK
gen joehoe {label, ".ret6"}
#ifdef REGVARS
return
#else
mov sp,bp
pop bp
ret.
#endif
pat ret $1==8
with STACK
gen joehoe {label, ".ret8"}
#ifdef REGVARS
return
#else
mov sp,bp
pop bp
ret.
#endif
/********************************************************************
* Group 15 : Miscellaneous Instructions *
********************************************************************/
pat asp $1==2
with exact a_word
with STACK
uses BXREG /* GENREG may contain lfr area */
gen pop %a
pat asp $1==4
with exact a_word a_word
with STACK
uses BXREG /* GENREG may contain lfr area */
gen pop %a
pop %a
pat asp $1==0-2
with STACK yields bp
pat asp
with STACK
gen add sp,{ANYCON,$1}
pat ass $1==2
with rmorconst STACK
gen add sp,%1
pat ass !defined($1)
with rm rmorconst STACK
gen cmp %1,{ANYCON,2}
jne {label, ".unknown"}
add sp,%2
pat blm $1==0 leaving asp 4
pat blm $1>0
kills ALL
gen mov cx,{ANYCON,$1/2}
joehoe {label, ".blm"}
pat bls $1==2
with CXREG
kills ALL
gen sar cx,{ANYCON,1}
joehoe {label, ".blm"}
pat bls !defined($1)
with rm-CXREG CXREG
kills ALL
gen cmp %1,{ANYCON,2}
jne {label, ".unknown"}
sar cx,{ANYCON,1}
joehoe {label, ".blm"}
pat csa $1==2
with BXREG ACC
kills ALL
gen jmp {label, ".csa2"}
pat csa $1==4
with BXREG ACC DXREG
kills ALL
gen jmp {label, ".csa4"}
/*
pat csa !defined($1)
with rm-BXREG-ACC ACC
kills ALL
gen cmp %1,{ANYCON,2}
jne {label, ".unknown"}
jmp {label, ".csa2"}
*/
pat csb $1==2
with BXREG ACC
kills ALL
gen jmp {label, ".csb2"}
pat csb $1==4
with BXREG ACC DXREG
kills ALL
gen jmp {label, ".csb4"}
/*
pat csb !defined($1)
with rm-BXREG-ACC BXREG ACC
gen cmp %1,{ANYCON,2}
jne {label, ".unknown"}
jmp {label, ".csb2"}
*/
pat dup $1==2
with anyreg yields %1 %1
with ACC1 yields %1 %1
pat dup $1==4
with regorconst regorconst yields %2 %1 %2 %1
pat dup
kills ALL
gen mov cx,{ANYCON,$1}
joehoe {label, ".dup"}
pat dus $1==2
with CXREG
kills ALL
gen joehoe {label, ".dup"}
pat dus !defined($1)
with rm-CXREG CXREG
kills ALL
gen cmp %1,{ANYCON,2}
jne {label, ".unknown"}
joehoe {label, ".dup"}
pat exg $1==2
with a_word a_word yields %1 %2
pat exg $1==4
with a_word a_word a_word a_word yields %2 %1 %4 %3
pat exg defined($1)
kills ALL
gen mov cx,{ANYCON,$1}
joehoe {label, ".exg"}
pat exg
with CXREG
kills ALL
gen joehoe {label, ".exg"}
pat gto
kills ALL
gen mov bx,{ADDR_EXTERN,$1}
jmp {label, ".gto"}
pat fil
gen mov {EXTERN2,"hol0+4"},{ADDR_EXTERN,$1}
pat lim
uses REG
gen mov %a,{EXTERN2,".ignmask"} yields %a
pat lin
gen mov {EXTERN2,"hol0"},{ANYCON,$1}
pat lni
gen inc {EXTERN2,"hol0"}
pat lor $1==0 yields bp
pat lor $1==1
with STACK
uses REG
gen mov %a,sp yields %a
pat lor $1==2
uses REG
gen mov %a,{EXTERN2,".reghp"} yields %a
pat mon
with ACC
kills ALL
gen joehoe {label, ".mon"}
pat nop
kills ALL
#if 0
gen joehoe {label, ".nop"}
#endif
pat rck $1==2
with BXREG ACC
kills ALL
gen joehoe {label, ".rck"} yields ax
pat rck !defined($1)
with rm-BXREG-ACC BXREG ACC
kills ALL
gen cmp %1,{ANYCON,2}
jne {label, ".unknown"}
joehoe {label, ".rck"} yields ax
pat rtt leaving ret 0
pat sig
with REG
gen xchg {EXTERN2,".trppc"},%1 yields %1
pat sim
with regorconst
gen mov {EXTERN2,".ignmask"},%1
pat str $1==0
with rmorconst
gen mov bp,%1
pat str $1==1
with rmorconst STACK
gen mov sp,%1
pat str $1==2
kills ALL
gen joehoe {label, ".strhp"}
pat trp
with ACC
kills ALL
gen joehoe {label, ".Xtrp"}