/************************************************************/
/************************************************************/
/******* ******/
/******* 8 0 8 0 B A C K E N D T A B L E ******/
/******* ******/
/************************************************************/
/************************************************************/
rcsid = "$Header$"
EM_WSIZE = 2
EM_PSIZE = 2
EM_BSIZE = 4
SL=4
PROPERTIES
areg /* the a-register */
lbreg /* the registers used as localbase */
reg /* the free registers */
regpair /* register pairs bc, de and hl */
regind /* register indirect */
dereg /* de-register-pair */
hlreg /* hl-register-pair */
hl_or_de /* de- or hl-register-pair */
localbase
stackpointer
psword
REGISTERS
a :areg,reg.
b,c :lbreg.
d,e,h,l :reg.
lb("b")=b+c :regpair, localbase, regind.
de("d")=d+e :regpair, regind, dereg, hl_or_de.
hl("h")=h+l :regpair, hlreg, hl_or_de.
sp :stackpointer.
psw=a :psword. /* in fact psw also includes
condition codes */
TOKENS
const1 = { INT num; } 1 num.
const2 = { INT num; } 2 num.
label = { ADDR off; } 2 off.
m = { } 2 cost(0,3) "m".
SETS
reg1 = reg + lbreg + m.
b_d_h_sp = regpair + stackpointer.
b_d_h_psw = regpair + psword.
immediate = const2 + label.
src1 = reg.
src2 = hl_or_de + const2 + label.
src1or2 = src1 + src2.
INSTRUCTIONS
/* aci const1:ro kills a:cc cost(2, 7). */
adc reg1:ro kills a:cc cost(1, 4).
add reg1:ro kills a:cc cost(1, 4).
/* adi const1:ro kills a:cc cost(2, 7). */
ana reg1:ro kills a:cc cost(1, 4).
ani const1:ro kills a:cc cost(2, 7).
Call "call" label:ro cost(3,17).
/* 'call' is a reserved word */
/* cc label:ro cost(3,14). */
/* cm label:ro cost(3,14). */
cma kills a cost(3,14).
cmc kills:cc cost(1, 4).
cmp reg1:ro kills:cc cost(1, 4).
/* cnc label:ro cost(3,14). */
cnz label:ro cost(3,14).
/* cp label:ro cost(3,14). */
/* cpe label:ro cost(3,14). */
cpi const1:ro kills:cc cost(2, 7).
/* cpo label:ro cost(3,14). */
/* cz label:ro cost(3,14). */
/* daa kills a:cc cost(1, 4). */
dad b_d_h_sp:ro kills hl:cc cost(1,10).
dcr reg+lbreg:rw:cc cost(1, 5).
dcr m:rw:cc cost(1, 7).
dcx b_d_h_sp:rw cost(1, 5).
/* di cost(1, 4). */
/* ei cost(1, 4). */
/* hlt cost(1, 4). */
/* in const1:ro cost(2,10). */
inr reg+lbreg:rw:cc cost(1, 5).
inr m:rw:cc cost(1, 7).
inx b_d_h_sp:rw cost(1, 5).
jc label:ro cost(3,10).
jm label:ro cost(3,10).
jmp label:ro cost(3,10).
jnc label:ro cost(3,10).
jnz label:ro cost(3,10).
jp label:ro cost(3,10).
/* jpe label:ro cost(3,10). */
/* jpo label:ro cost(3,10). */
jz label:ro cost(3,10).
lda label:ro kills a cost(3,13).
ldax regind:ro kills a cost(1, 7).
lhld label:ro kills hl cost(3,16).
lxi b_d_h_sp:wo,immediate:ro cost(3,10).
mov reg+lbreg:wo,reg+lbreg:ro cost(1, 5).
mov m:wo,reg1:ro cost(1, 4).
mov reg1:wo,m:ro cost(1, 4).
mvi reg1:wo,const1:ro cost(2, 7).
/* nop cost(1, 3). */
ora reg1:ro kills a:cc cost(1, 4).
/* ori const1:ro kills a:cc cost(2, 7). */
/* out const1:ro cost(2,10). */
pchl cost(1, 5).
pop b_d_h_psw:wo cost(1,10).
push b_d_h_psw:ro cost(1,10).
ral kills a:cc cost(1, 4).
rar kills a:cc cost(1, 4).
/* rc cost(1, 8). */
ret cost(1,10).
rlc kills a:cc cost(1, 4).
/* rm cost(1, 8). */
/* rnc cost(1, 8). */
/* rnz cost(1, 8). */
/* rp cost(1, 8). */
/* rpe cost(1, 8). */
/* rpo cost(1, 8). */
rrc kills a:cc cost(1, 4).
/* rst const1:ro cost(1,11). */
/* rz cost(1, 8). */
sbb reg1:ro kills a:cc cost(1, 4).
/* sbi const1:ro kills a:cc cost(2, 7). */
shld label:ro cost(3,16).
sphl cost(1, 5).
sta label:ro cost(3,13).
stax regind:ro cost(1, 7).
/* stc kills:cc cost(1, 4). */
sub reg1:ro kills a:cc cost(1, 4).
sui const1:ro kills a:cc cost(2, 7).
xchg kills de hl cost(1, 4).
xra reg1:ro kills a:cc cost(1, 4).
/* xri const1:ro kills a:cc cost(2, 7). */
xthl kills hl cost(1,18).
MOVES
from reg to reg
gen mov %2,%1
from const1 %num==0 to areg
gen xra a
from const1 to reg
gen mvi %2,%1
from immediate to b_d_h_sp
gen lxi %2,%1
from reg to regpair
gen mov %2.2,%1
mvi %2.1,{const1,0}
from regpair to regpair
gen mov %2.1,%1.1
mov %2.2,%1.2
TESTS
to test areg /* dummy test, never used */
gen ora a
STACKINGRULES
from regpair to STACK
gen push %1
from immediate + reg to STACK
uses hl_or_de
gen move %1,%a
push %a
from immediate + reg to STACK
gen push hl
move %1,hl
xthl.
COERCIONS
from STACK
uses regpair
gen pop %a yields %a
from STACK
uses hl_or_de
gen pop %a yields %a.2
from STACK
uses areg
gen dcx sp
pop psw
inx sp yields a
from immediate
uses regpair
gen move %1,%a yields %a
from hl_or_de
uses hl_or_de
gen xchg. yields %a
from regpair
uses regpair
gen move %1,%a yields %a
from reg
uses reusing %1, hl_or_de
gen move %1,%a.2
move {const1,0},%a.1 yields %a
from hl_or_de yields %1.2
from const2
uses hl_or_de
gen move %1,%a yields %a.2
from hl_or_de
uses areg
gen move %1.2,a yields a
PATTERNS
/*********************************************/
/* Group 1: Load instructions */
/*********************************************/
pat loc yields {const2,$1}
pat ldc yields {const2,highw($1)}
{const2,loww($1)}
pat lol lol $1==$2
uses hlreg={const2,$1}, dereg
gen dad lb
mov e,{m}
inx hl
mov d,{m} yields de de
pat lol
uses hlreg={const2,$1}, dereg
gen dad lb
mov e,{m}
inx hl
mov d,{m} yields de
pat loe loe $1==$2
uses hlreg
gen lhld {label,$1} yields hl hl
pat loe
uses hlreg
gen lhld {label,$1} yields hl
pat lil lil $1==$2
uses hlreg={const2,$1}, dereg
gen dad lb
mov e,{m}
inx hl
mov h,{m}
mov l,e
mov e,{m}
inx hl
mov d,{m} yields de de
pat lil
uses hlreg={const2,$1}, dereg
gen dad lb
mov e,{m}
inx hl
mov h,{m}
mov l,e
mov e,{m}
inx hl
mov d,{m} yields de
pat lof
with hl_or_de
kills hl_or_de
uses hl_or_de={const2,$1}
gen dad de
mov e,{m}
inx hl
mov d,{m} yields de
pat lal
uses hlreg={const2,$1}
gen dad lb yields hl
pat lae yields {label,$1}
pat lxl $1==0 yields lb
pat lxl $1==1
uses dereg, hlreg
gen move {const2,SL},hl
dad lb
mov e,{m}
inx hl
mov d,{m} yields de
pat lxl $1>1 && $1<256
uses dereg, areg={const1,$1}, hlreg
gen move lb,de
1:
lxi hl,{const2,SL}
dad de
mov e,{m}
inx hl
mov d,{m}
dcr a
jnz {label,1b} yields de
pat lxa $1==0
uses hlreg
gen move {const2,SL},hl
dad lb yields hl
pat lxa $1==1
uses dereg, hlreg
gen move {const2,SL},hl
dad lb
mov e,{m}
inx hl
mov d,{m}
lxi hl,{const2,SL}
dad de yields hl
pat lxa $1>1 && $1<256
uses dereg, hlreg, areg={const1,$1}
gen move lb,de
1:
lxi hl,{const2,SL}
dad de
mov e,{m}
inx hl
mov d,{m}
dcr a
jnz {label,1b}
lxi hl,{const2,SL}
dad de yields hl
pat loi $1==1
with exact label
uses areg
gen lda %1 yields a
with dereg
uses areg
gen ldax de yields a
with hlreg
uses reusing %1, reg
gen mov %a,{m} yields %a
pat loi $1==2
with exact label
gen lhld %1 yields hl
with hlreg
uses dereg
gen mov e,{m}
inx %1
mov d,{m} yields de
pat loi $1==4
with exact label
gen lhld %1
xchg.
lhld {label,%1.off+2} yields hl de
with exact label
gen lhld {label,%1.off+2}
xchg.
lhld %1 yields de hl
with hlreg
uses dereg, areg
gen mov e,{m}
inx %1
mov d,{m}
inx hl
mov a,{m}
inx hl
mov h,{m}
mov l,a yields hl de
pat loi $1<=510
with hl_or_de STACK
uses hl_or_de={const2,$1-1}, areg
gen dad de
mvi a,{const1,$1/2}
1:
mov d,{m}
dcx hl
mov e,{m}
dcx hl
push de
dcr a
jnz {label,1b}
pat loi $1>=512
kills ALL
uses dereg={const2,$1}
gen Call {label,".loi"}
pat los $1==2
with dereg
kills ALL
gen Call {label,".loi"}
pat ldl
with STACK
uses dereg, hlreg={const2,$1+3}
gen dad lb
mov d,{m}
dcx hl
mov e,{m}
dcx hl
push de
mov d,{m}
dcx hl
mov e,{m} yields de
pat lde
with STACK
gen lhld {label,$1+2}
push hl
lhld {label,$1} yields hl
with
uses dereg, hlreg
gen lhld {label,$1}
xchg.
lhld {label,$1+2} yields hl de
with
uses dereg, hlreg
gen lhld {label,$1+2}
xchg.
lhld {label,$1} yields de hl
pat ldf
with hl_or_de STACK
uses hl_or_de={const2,$1+3}
gen dad de
mov d,{m}
dcx hl
mov e,{m}
dcx hl
push de
mov d,{m}
dcx hl
mov e,{m} yields de
pat lpi
uses hl_or_de={label,$1} yields %a
/******************************************/
/* Group 2: Store instructions */
/******************************************/
pat stl lol $1==$2
with dereg yields de de leaving stl $1
pat stl
with dereg
uses hlreg={const2,$1}
gen dad lb
mov {m},e
inx hl
mov {m},d
pat ste loe $1==$2
with hlreg yields hl hl leaving ste $1
pat ste
with hlreg
gen shld {label,$1}
pat sil
with dereg
uses hlreg={const2,$1}, areg
gen dad lb
mov a,{m}
inx hl
mov h,{m}
mov l,a
mov {m},e
inx hl
mov {m},d
pat sil lil $1==$2
with dereg
uses hlreg={const2,$1}, areg
gen dad lb
mov a,{m}
inx hl
mov h,{m}
mov l,a
mov {m},e
inx hl
mov {m},d yields de
pat lil loc adi sil $1==$4 && $3==2
uses hlreg={const2,$1}, dereg, areg
gen dad lb
mov e,{m}
inx hl
mov h,{m}
mov l,e
mov e,{m}
inx hl
mov d,{m}
push hl
lxi hl,{const2,$2}
dad de
xchg.
pop hl
mov {m},d
dcx hl
mov {m},e
pat lil inc sil $1==$3
uses hlreg={const2,$1}, areg
gen dad lb
mov a,{m}
inx hl
mov h,{m}
mov l,a
inr {m}
jnz {label,1f}
inx hl
inr {m}
1:
pat lil dec sil $1==$3
uses hlreg={const2,$1}, dereg
gen dad lb
mov e,{m}
inx hl
mov h,{m}
mov l,e
mov e,{m}
inx hl
mov d,{m}
dcx de
mov {m},d
dcx hl
mov {m},e
pat stf
with hl_or_de
uses hl_or_de={const2,$1}
gen dad de
pop de
mov {m},e
inx hl
mov {m},d
pat sti $1==1
with label areg
gen sta %1
with dereg areg
gen stax de
with hlreg reg
gen mov {m},%2
pat sti $1==2
with label hlreg
gen shld %1
with hlreg dereg
gen mov {m},e
inx %1
mov {m},d
with dereg hlreg
gen xchg.
mov {m},e
inx %2
mov {m},d
pat sti $1==4
with label hlreg dereg
gen shld %1
xchg.
shld {label,%1.off+2}
with label dereg hlreg
gen shld {label,%1.off+2}
xchg.
shld %1
with hlreg dereg
kills ALL
gen mov {m},e
inx hl
mov {m},d
inx hl
pop de
mov {m},e
inx hl
mov {m},d
pat sti $1<512
with hlreg
kills ALL
uses areg={const1,$1/2}, dereg
gen 1:
pop de
mov {m},e
inx hl
mov {m},d
inx hl
dcr a
jnz {label,1b}
pat sti
kills ALL
uses dereg={const2,$1}
gen Call {label,".sti"}
pat sts $1==2
with dereg
kills ALL
gen Call {label,".sti"}
pat sdl
with dereg
kills ALL
uses hlreg={const2,$1}
gen dad lb
mov {m},e
inx hl
mov {m},d
inx hl
pop de
mov {m},e
inx hl
mov {m},d
pat sde
with hlreg
kills ALL
gen shld {label,$1}
pop hl
shld {label,$1+2}
with hlreg dereg
kills ALL
gen shld {label,$1}
xchg.
shld {label,$1+2}
with dereg hlreg
kills ALL
gen shld {label,$1+2}
xchg.
shld {label,$1}
pat sdf
with hl_or_de
kills ALL
uses hl_or_de={const2,$1}
gen dad de
pop de
mov {m},e
inx hl
mov {m},d
inx hl
pop de
mov {m},e
inx hl
mov {m},d
/****************************************/
/* Group 3: Integer arithmetic */
/****************************************/
pat adi $1==2
with hlreg dereg
gen dad de yields hl
with dereg hlreg
gen dad de yields hl
with hlreg hlreg
gen dad hl yields hl
with dereg dereg
gen xchg.
dad hl yields hl
pat adi $1==4
kills ALL
gen Call {label,".adi4"}
pat sbi $1==2
with hl_or_de hl_or_de
uses areg
gen mov a,%2.2
sub %1.2
mov %1.2,a
mov a,%2.1
sbb %1.1
mov %1.1,a yields %1
with hl_or_de hl_or_de
uses areg
gen mov a,%2.2
sub %1.2
mov %2.2,a
mov a,%2.1
sbb %1.1
mov %2.1,a yields %2
pat sbi $1==4
kills ALL
gen Call {label,".sbi4"}
pat mli $1==2
kills ALL
gen Call {label,".mli2"} yields de
pat mli $1==4
kills ALL
gen Call {label,".mli4"}
pat dvi $1==2
kills ALL
uses areg={const1,129}
gen Call {label,".dvi2"} yields de
pat dvi $1==4
kills ALL
uses areg={const1,129}
gen Call {label,".dvi4"}
pat rmi $1==2
kills ALL
uses areg={const1,128}
gen Call {label,".dvi2"} yields de
pat rmi $1==4
kills ALL
uses areg={const1,128}
gen Call {label,".dvi4"}
pat ngi $1==2
with hl_or_de
uses areg
gen xra a
sub %1.2
mov %1.2,a
mvi a,{const1,0}
sbb %1.1
mov %1.1,a yields %1
pat ngi $1==4
kills ALL
gen Call {label,".ngi4"}
pat sli $1==2
kills ALL
gen Call {label,".sli2"} yields de
pat sli $1==4
kills ALL
gen Call {label,".sli4"}
pat sri $1==2
kills ALL
uses areg={const1,1}
gen Call {label,".sri2"} yields de
pat sri $1==4
kills ALL
uses areg={const1,1}
gen Call {label,".sri4"}
/********************************************/
/* Group 4: Unsigned arithmetic */
/********************************************/
pat adu leaving adi $1
pat sbu leaving sbi $1
pat mlu $1==2
kills ALL
gen Call {label,".mlu2"} yields de
pat mlu $1==4
kills ALL
gen Call {label,".mli4"}
pat dvu $1==2
kills ALL
uses areg={const1,1}
gen Call {label,".dvi2"} yields de
pat dvu $1==4
kills ALL
uses areg={const1,1}
gen Call {label,".dvi4"}
pat rmu $1==2
kills ALL
uses areg={const1,0}
gen Call {label,".dvi2"} yields de
pat rmu $1==4
kills ALL
uses areg={const1,0}
gen Call {label,".dvi4"}
pat slu leaving sli $1
pat sru $1==2
kills ALL
uses areg={const1,0}
gen Call {label,".sri2"} yields de
pat sru $1==4
kills ALL
uses areg={const1,0}
gen Call {label,".sri4"}
/********************************************/
/* Group 5: Floating point arithmetic */
/********************************************/
pat adf $1==4
kills ALL
gen Call {label,".adf4"}
pat adf $1==8
kills ALL
gen Call {label,".adf8"}
pat sbf $1==4
kills ALL
gen Call {label,".sbf4"}
pat sbf $1==8
kills ALL
gen Call {label,".sbf8"}
pat mlf $1==4
kills ALL
gen Call {label,".mlf4"}
pat mlf $1==8
kills ALL
gen Call {label,".mlf8"}
pat dvf $1==4
kills ALL
gen Call {label,".dvf4"}
pat dvf $1==8
kills ALL
gen Call {label,".dvf8"}
pat ngf $1==4
kills ALL
gen Call {label,".ngf4"}
pat ngf $1==8
kills ALL
gen Call {label,".ngf8"}
pat fif $1==4
kills ALL
gen Call {label,".fif4"}
pat fif $1==8
kills ALL
gen Call {label,".fif8"}
pat fef $1==4
kills ALL
gen Call {label,".fef4"}
pat fef $1==8
kills ALL
gen Call {label,".fef8"}
/********************************************/
/* Group 6: Pointer arithmetic */
/********************************************/
pat adp $1==0 /* do nothing */
pat adp $1==1
with hl_or_de
gen inx %1 yields %1
pat adp $1==2
with hl_or_de
gen inx %1
inx %1 yields %1
pat adp $1==0-1
with hl_or_de
gen dcx %1 yields %1
pat adp $1==0-2
with hl_or_de
gen dcx %1
dcx %1 yields %1
pat adp
with hl_or_de
uses hl_or_de={const2,$1}
gen dad de yields hl
pat ads $1==2 leaving adi 2
pat sbs $1==2 leaving sbi 2
/********************************************/
/* Group 7: Increment/ decrement/ zero */
/********************************************/
pat inc
with hl_or_de
gen inx %1 yields %1
pat inl
uses hlreg={const2,$1}
gen dad lb
inr {m}
jnz {label,1f}
inx hl
inr {m}
1:
pat ine
uses hlreg={label,$1}
gen inr {m}
jnz {label,1f}
inx hl
inr {m}
1:
pat dec
with hl_or_de
gen dcx %1 yields %1
pat del
uses hlreg={const2,$1}, dereg
gen dad lb
mov e,{m}
inx hl
mov d,{m}
dcx de
mov {m},d
dcx hl
mov {m},e
pat dee
uses hlreg
gen lhld {label,$1}
dcx hl
shld {label,$1}
pat zrl
uses hlreg={const2,$1}, areg
gen dad lb
xra a
mov {m},a
inx hl
mov {m},a
pat zre
uses hlreg={const2,0}
gen shld {label,$1}
pat zrf $1==4
kills ALL
gen Call {label,".zrf4"}
pat zrf $1==8
kills ALL
gen Call {label,".zrf8"}
pat zer $1==2 yields {const2,0}
pat zer $1==4 yields {const2,0} {const2,0}
pat zer $1<511
kills ALL
uses reg={const1,$1/2}, hl_or_de={const2,0}
gen 1:
push %b
dcr %a
jnz {label,1b}
pat zer
kills ALL
uses hl_or_de={const2,$1/2}, hl_or_de={const2,0}, areg
gen xra a
1:
push %b
dcx %a
cmp %a.2
jnz {label,1b}
cmp %a.1
jnz {label,1b}
/*****************************************/
/* Group 8: Convert instructions */
/*****************************************/
pat loc loc cii $1==$2
pat loc loc cii $1==2 && $2==4
with hl_or_de
uses hl_or_de={const2,0}, areg
gen mov a,%1.1
ora a
jp {label,1f}
lxi %a,{const2,0-1}
1: yields %a %1
pat loc loc cii $1==4 && $2==2
with hl_or_de hl_or_de yields %1
pat loc loc cii $1==1 && $2==2
with reg
uses reusing %1, areg=%1, hl_or_de
gen move {const1,0},%b.1
move a,%b.2
ora a
jp {label,1f}
mvi %b.1,{const1,255}
1: yields %b
with hl_or_de
uses areg=%1.2
gen move {const1,0},%1.1
ora a
jp {label,1f}
mvi %1.1,{const1,255}
1: yields %1
pat loc loc cii $1==1 && $2==4
with reg
uses hlreg
gen move %1,l yields hl
leaving loc $1 loc $2 cii
with hlreg
uses dereg, areg
gen move {const1,0},%1.1
move l,a
ora a
jp {label,1f}
mvi h,{const1,255}
1:
mov e,h
mov d,h yields de hl
pat cii
kills ALL
uses areg={const1,1}
gen Call {label,".cii"}
pat loc loc ciu leaving loc $1 loc $2 cuu
pat loc loc cui leaving loc $1 loc $2 cuu
pat cui leaving cuu $1
pat ciu leaving cuu $1
pat loc loc cuu $1==$2
pat loc loc cuu $1==2 && $2==4
with src1or2 yields {const2,0} %1
pat loc loc cuu $1==4 && $1==2
with src1or2 src1or2 yields %1
pat loc loc cuu $1==1 && $2==2
with reg
uses reusing %1, hl_or_de
gen move %1,%a yields %a
with hl_or_de
gen move {const1,0},%1.1 yields %1
pat loc loc cuu $1==1 && $2==4
with reg
uses reusing %1, hl_or_de
gen move %1,%a yields {const2,0} %a
with hl_or_de
gen move {const1,0},%1.1 yields {const2,0} %1
pat cuu
kills ALL
uses areg={const1,0}
gen Call {label,".cii"}
pat cfi
kills ALL
gen Call {label,".cfi"}
pat cif
kills ALL
gen Call {label,".cif"}
pat cuf
kills ALL
gen Call {label,".cuf"}
pat cff
kills ALL
gen Call {label,".cff"}
pat cfu
kills ALL
gen Call {label,".cfu"}
/*****************************************/
/* Group 9: Logical instructions */
/*****************************************/
pat and $1==2
with hl_or_de hl_or_de
uses areg
gen mov a,%1.2
ana %2.2
mov %2.2,a
mov a,%1.1
ana %2.1
mov %2.1,a yields %2
with hl_or_de hl_or_de
uses areg
gen mov a,%1.2
ana %2.2
mov %1.2,a
mov a,%1.1
ana %2.1
mov %1.1,a yields %1
pat and defined($1)
kills ALL
uses dereg={const2,$1}
gen Call {label,".and"}
pat and !defined($1)
with dereg
kills ALL
gen Call {label,".and"}
pat ior $1==2
with hl_or_de hl_or_de
uses areg
gen mov a,%1.2
ora %2.2
mov %2.2,a
mov a,%1.1
ora %2.1
mov %2.1,a yields %2
with hl_or_de hl_or_de
uses areg
gen mov a,%1.2
ora %2.2
mov %1.2,a
mov a,%1.1
ora %2.1
mov %1.1,a yields %1
pat ior defined($1)
kills ALL
uses dereg={const2,$1}
gen Call {label,".ior"}
pat ior !defined($1)
with dereg
kills ALL
gen Call {label,".ior"}
pat xor $1==2
with hl_or_de hl_or_de
uses areg
gen mov a,%1.2
xra %2.2
mov %2.2,a
mov a,%1.1
xra %2.1
mov %2.1,a yields %2
with hl_or_de hl_or_de
uses areg
gen mov a,%1.2
xra %2.2
mov %1.2,a
mov a,%1.1
xra %2.1
mov %1.1,a yields %1
pat xor defined($1)
kills ALL
uses dereg={const2,$1}
gen Call {label,".xor"}
pat xor !defined($1)
with dereg
kills ALL
gen Call {label,".xor"}
pat com $1==2
with hl_or_de
uses areg
gen mov a,%1.2
cma.
mov %1.2,a
mov a,%1.1
cma.
mov %1.1,a yields %1
pat com defined($1)
kills ALL
uses dereg={const2,$1}
gen Call {label,".com"}
pat com !defined($1)
with dereg
kills ALL
gen Call {label,".com"}
pat rol $1==2
with dereg hlreg
kills ALL
uses areg
gen mov a,e
ani {const1,15}
jz {label,3f}
1:
dad hl
jnc {label,2f}
inr l
2:
dcr a
jnz {label,1b}
3: yields hl
pat rol $1==4
with dereg
kills ALL
gen Call {label,".rol4"}
pat ror $1==2
with dereg hlreg
kills ALL
uses areg
gen mov a,e
ani {const1,15}
jz {label,2f}
mov e,a
mov a,l
1:
rar.
mov a,h
rar.
mov h,a
mov a,l
rar.
mov l,a
dcr e
jnz {label,1b}
2: yields hl
pat ror $1==4
with dereg
kills ALL
gen Call {label,".ror4"}
/***********************************************/
/* Group 10: Set instructions */
/***********************************************/
pat inn $1==2
kills ALL
gen Call {label,".inn2"} yields de
pat inn defined($1)
kills ALL
uses dereg={const2,$1}
gen Call {label,".inn"} yields de
pat inn !defined($1)
with dereg
kills ALL
gen Call {label,".inn"} yields de
pat set $1==2
with dereg
kills ALL
gen Call {label,".set2"} yields de
pat set defined($1)
kills ALL
uses dereg={const2,$1}
gen Call {label,".set"}
pat set !defined($1)
with dereg
kills ALL
gen Call {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 hlreg
gen dad hl yields hl leaving adi 2
pat lae aar $2==2 && rom($1,3)==2 && rom($1,1)!=0
with hlreg
uses dereg={const2,0-rom($1,1)}
gen dad de
dad hl yields hl leaving adi 2
pat lae aar $2==2 && rom($1,3)==4 && rom($1,1)==0
with hlreg
gen dad hl
dad hl yields hl leaving adi 2
pat lae aar $2==2 && rom($1,3)==4 && rom($1,1)!=0
with hlreg
uses dereg={const2,0-rom($1,1)}
gen dad de
dad hl
dad hl yields hl leaving adi 2
pat lae aar $2==2 && rom($1,3)==8 && rom($1,1)==0
with hlreg
gen dad hl
dad hl
dad hl yields hl leaving adi 2
pat lae aar $2==2 && rom($1,3)==8 && rom($1,1)!=0
with hlreg
uses dereg={const2,0-rom($1,1)}
gen dad de
dad hl
dad hl
dad hl yields hl leaving adi 2
pat lar $1==2
kills ALL
gen Call {label,".lar2"}
pat lar defined($1)
gen Call {label,"eunimpl"}
pat lar !defined($1)
with hl_or_de
kills ALL
uses areg
gen mov a,%1.2
cpi {const1,2}
cnz {label,"eunimpl"}
mov a,%1.1
ora a
cnz {label,"eunimpl"}
Call {label,".lar2"}
pat sar $1==2
kills ALL
gen Call {label,".sar2"}
pat sar defined($1)
kills ALL
gen Call {label,"eunimpl"}
pat sar !defined($1)
with hl_or_de
kills ALL
uses areg
gen mov a,%1.2
cpi {const1,2}
cnz {label,"eunimpl"}
mov a,%1.1
ora a
cnz {label,"eunimpl"}
Call {label,".sar2"}
pat aar $1==2
kills ALL
gen Call {label,".aar2"}
pat aar defined($1)
kills ALL
gen Call {label,"eunimpl"}
pat aar !defined($1)
with hl_or_de
kills ALL
uses areg
gen mov a,%1.2
cpi {const1,2}
cnz {label,"eunimpl"}
mov a,%1.1
ora a
cnz {label,"eunimpl"}
Call {label,".aar2"}
/***********************************************/
/* Group 12: Compare instructions */
/***********************************************/
pat cmi $1==2 leaving sbi 2
pat cmi $1==4
kills ALL
uses areg={const1,1}
gen Call {label,".cmi4"} yields de
pat cmf $1==4
kills ALL
gen Call {label,".cmf4"}
pat cmf $1==8
kills ALL
gen Call {label,".cmf8"}
pat cmu $1==2
with hl_or_de hl_or_de
uses areg
gen mov a,%2.1
cmp %1.1
jz {label,2f}
jc {label,1f}
0:
lxi %2,{const2,1}
jmp {label,3f}
1:
lxi %2,{const2,0-1}
jmp {label,3f}
2:
mov a,%2.2
cmp %1.2
jc {label,1b}
jnz {label,0b}
lxi %2,{const2,0}
3: yields %2
pat cmu $1==4
kills ALL
uses areg={const1,0}
gen Call {label,".cmi4"} yields de
pat cms $1==2 leaving cmi 2
pat cms defined($1)
kills ALL
uses dereg={const2,$1}
gen Call {label,".cms"} yields de
pat cms !defined($1)
with dereg
kills ALL
gen Call {label,".cms"} yields de
pat cmp leaving cmu 2
pat tlt
with hl_or_de
uses areg
gen mov a,%1.1
ral.
mvi a,{const1,0}
mov %1.1,a
adc a
mov %1.2,a yields %1
pat tle
with hl_or_de
uses hl_or_de={const2,1}, areg
gen xra a
add %1.1
jm {label,2f}
jnz {label,1f}
xra a
add %1.2
jz {label,2f}
1:
dcx %a
2: yields %a
pat teq
with hl_or_de
uses areg
gen mov a,%1.1
ora %1.2
move {const2,0},%1
jnz {label,1f}
inx %1
1: yields %1
pat tne
with hl_or_de
uses areg
gen mov a,%1.1
ora %1.2
move {const2,0},%1
jz {label,1f}
inx %1
1: yields %1
pat tge
with hl_or_de
uses areg
gen mov a,%1.1
ral.
cmc.
mvi a,{const1,0}
mov %1.1,a
adc a
mov %1.2,a yields %1
pat tgt
with hl_or_de
uses hl_or_de={const2,0}, areg
gen xra a
add %1.1
jm {label,2f}
jnz {label,1f}
xra a
add %1.2
jz {label,2f}
1:
inx %a
2: yields %a
pat loc cmi teq and $1>=0 && $1<=255 && $2==2 && $4==2
with exact areg hl_or_de
gen cpi {const1,$1}
jz {label,1f}
move {const2,0},%2
1: yields %2
with hl_or_de hl_or_de
uses areg
gen mov a,%1.2
cpi {const1,$1}
jnz {label,1f}
mov a,%1.1
ora a
jz {label,2f}
1:
move {const2,0},%2
2: yields %2
pat loc cmi tne and $1>=0 && $1<=255 && $2==2 && $4==2
with exact areg hl_or_de
gen cpi {const1,$1}
jnz {label,1f}
move {const2,0},%2
1: yields %2
with hl_or_de hl_or_de
uses areg
gen mov a,%1.2
cpi {const1,$1}
jnz {label,1f}
mov a,%1.1
ora a
jnz {label,1f}
move {const2,0},%2
1: yields %2
pat loc cmi teq ior $1>=0 && $1<=255 && $2==2 && $4==2
with exact areg hl_or_de
gen cpi {const1,$1}
jnz {label,1f}
move {const2,1},%2
1: yields %2
with hl_or_de hl_or_de
uses areg
gen mov a,%1.2
cpi {const1,$1}
jnz {label,1f}
mov a,%1.1
ora a
jnz {label,1f}
move {const2,1},%2
1: yields %2
pat loc cmi tne ior $1>=0 && $1<=255 && $2==2 && $4==2
with exact areg hl_or_de
gen cpi {const1,$1}
jz {label,1f}
move {const2,1},%2
1: yields %2
with hl_or_de hl_or_de
uses areg
gen mov a,%1.2
cpi {const1,$1}
jnz {label,1f}
mov a,%1.1
ora a
jz {label,2f}
1:
move {const2,1},%2
2: yields %2
pat loc cmi teq $1>=0 && $1<=255 && $2==2
with exact areg
uses hl_or_de={const2,0}
gen cpi {const1,$1}
jnz {label,1f}
inx %a
1: yields %a
with hl_or_de
uses hl_or_de={const2,0}, areg
gen mov a,%1.2
cpi {const1,$1}
jnz {label,1f}
mov a,%1.1
ora a
jnz {label,1f}
inx %a
1: yields %a
pat loc cmi tne $1>=0 && $1<=255 && $2==2
with exact areg
uses hl_or_de={const2,0}
gen cpi {const1,$1}
jz {label,1f}
inx %a
1: yields %a
with hl_or_de
uses hl_or_de={const2,1}, areg
gen mov a,%1.2
cpi {const1,$1}
jnz {label,1f}
mov a,%1.1
ora a
jnz {label,1f}
dcx %a
1: yields %a
pat loc cmi $1>=0 && $1<=255 && $2==2
with exact areg
uses hl_or_de
gen sui {const1,$1}
mov %a.2,a
rar.
mov %a.1,a yields %a
with yields {const2,$1}
leaving cmi 2
pat loc cmi $1<0 && $2==2
with exact areg yields {const2,0-1}
with yields {const2,$1}
leaving cmi 2
/*******************************************/
/* Group 13: Branch instructions */
/*******************************************/
pat loc beq $1>=0 && $1<=255
with exact reg
uses reusing %1, areg=%1
gen cpi {const1,$1}
jz {label,$2}
with yields {const2,$1}
leaving beq $2
pat loc bne $1>=0 && $1<=255
with exact reg
uses reusing %1, areg=%1
gen cpi {const1,$1}
jnz {label,$2}
with yields {const2,$1}
leaving bne $2
pat bra
with STACK
gen jmp {label,$1}
pat blt
with hl_or_de hl_or_de STACK
uses areg
gen mov a,%2.2
sub %1.2
mov a,%2.1
sbb %1.1
jm {label,$1}
pat ble
with hl_or_de hl_or_de STACK
uses areg
gen mov a,%1.2
sub %2.2
mov a,%1.1
sbb %2.1
jp {label,$1}
pat beq
with hl_or_de hl_or_de STACK
uses areg
gen mov a,%2.2
cmp %1.2
jnz {label,1f}
mov a,%2.1
cmp %1.1
jz {label,$1}
1:
pat bne
with hl_or_de hl_or_de STACK
uses areg
gen mov a,%2.2
cmp %1.2
jnz {label,$1}
mov a,%2.1
cmp %1.1
jnz {label,$1}
pat bge
with hl_or_de hl_or_de STACK
uses areg
gen mov a,%2.2
sub %1.2
mov a,%2.1
sbb %1.1
jp {label,$1}
pat bgt
with hl_or_de hl_or_de STACK
uses areg
gen mov a,%1.2
sub %2.2
mov a,%1.1
sbb %2.1
jm {label,$1}
pat zlt
with STACK
gen pop psw
ora a
jm {label,$1}
with hl_or_de STACK
gen mov a,%1.1
ora a
jm {label,$1}
pat zle
with hl_or_de STACK
uses areg
gen xra a
add %1.1
jm {label,$1}
jnz {label,1f}
xra a
add %1.2
jz {label,$1}
1:
pat zeq
with hl_or_de STACK
uses areg
gen mov a,%1.1
ora %1.2
jz {label,$1}
pat zne
with hl_or_de STACK
uses areg
gen mov a,%1.1
ora %1.2
jnz {label,$1}
pat zge
with STACK
gen pop psw
ral.
jnc {label,$1}
with hl_or_de STACK
gen mov a,%1.1
ora a
jp {label,$1}
pat zgt
with hl_or_de STACK
uses areg
gen xra a
add %1.1
jm {label,1f}
jnz {label,$1}
xra a
add %1.2
jnz {label,$1}
1:
pat lol zeq
with STACK
uses hlreg={const2,$1}, areg
gen dad lb
mov a,{m}
inx hl
ora {m}
jz {label,$2}
pat lol zne
with STACK
uses hlreg={const2,$1}, areg
gen dad lb
mov a,{m}
inx hl
ora {m}
jnz {label,$2}
pat ior zeq $1==2
with hl_or_de hl_or_de STACK
uses areg
gen mov a,%1.1
ora %1.2
ora %2.1
ora %2.2
jz {label,$2}
pat ior zne $1==2
with hl_or_de hl_or_de STACK
uses areg
gen mov a,%1.1
ora %1.2
ora %2.1
ora %2.2
jnz {label,$2}
/*********************************************/
/* Group 14: Procedure call instructions */
/*********************************************/
pat cal
kills ALL
gen Call {label,$1}
pat cai
with hlreg
kills ALL
uses dereg
gen lxi de,{label,1f}
push de
pchl.
1:
pat lfr $1==2 yields de
pat lfr $1<=8
with STACK
uses areg={const1,$1/2}, hlreg={label,".fra"+$1}, dereg
gen 1:
dcx hl
mov d,{m}
dcx hl
mov e,{m}
push de
dcr a
jnz {label,1b}
pat lfr ret $1==$2 leaving ret 0
pat ret $1==0
with STACK
uses hlreg
gen move lb,hl
sphl.
pop lb
ret.
pat ret $1==2
with dereg STACK
uses hlreg
gen move lb,hl
sphl.
pop lb
ret.
pat ret $1<=8
with STACK
uses areg={const1,$1/2}, hlreg={label,".fra"}, dereg
gen 1:
pop de
mov {m},e
inx hl
mov {m},d
inx hl
dcr a
jnz {label,1b}
move lb,hl
sphl.
pop lb
ret.
/******************************************/
/* Group 15: Miscellaneous */
/******************************************/
pat asp $1<=0-6
with STACK
uses hlreg={const2,$1}
gen dad sp
sphl.
pat asp $1==0-4
with STACK
gen dcx sp
dcx sp
dcx sp
dcx sp
pat asp $1==0-2
with STACK
gen dcx sp
dcx sp
pat asp $1==0 /* do nothing */
pat asp $1==2
with exact src1or2
with STACK
gen inx sp
inx sp
pat asp $1==4
with exact src1or2 leaving asp 2
with STACK
gen inx sp
inx sp
inx sp
inx sp
pat asp $1>=6
with exact src1or2 leaving asp $1-2
with STACK
uses hlreg={const2,$1}
gen dad sp
sphl.
pat ass $1==2
with hlreg STACK
gen dad sp
sphl.
pat blm
kills ALL
uses dereg={const2,$1}
gen Call {label,".blm"}
pat bls
with dereg
kills ALL
gen Call {label,".blm"}
pat csa
kills ALL
gen jmp {label,".csa"}
pat csb
kills ALL
gen jmp {label,".csb"}
pat dch leaving loi 2
pat dup $1==2
with src1or2 yields %1 %1
pat dup $1==4
with src1or2 src1or2 yields %2 %1 %2 %1
pat dup
kills ALL
uses dereg={const2,$1}
gen Call {label,".dup"}
pat dus $1==2
with dereg
kills ALL
gen Call {label,".dup"}
pat exg $1==2
with src1or2 src1or2 yields %1 %2
pat exg defined($1)
kills ALL
uses dereg={const2,1}
gen Call {label,".exg"}
pat fil
uses hlreg={label,$1}
gen shld {label,"hol0"+4}
pat gto
with STACK
gen lhld {label,$1+2}
sphl.
lhld {label,$1+4}
move hl,lb
lhld {label,$1}
pchl.
pat lim
uses hlreg
gen lhld {label,".ignmask"} yields hl
pat lin
uses hlreg={const2,$1}
gen shld {label,"hol0"}
pat lni
uses hlreg
gen lhld {label,"hol0"}
inx hl
shld {label,"hol0"}
pat lor $1==0 yields lb
pat lor $1==1
with STACK
uses hlreg={const2,0}
gen dad sp yields hl
pat lor $1==2
uses hlreg
gen lhld {label,".reghp"} yields hl
pat lpb leaving adp SL
pat mon
kills ALL
gen Call {label,".mon"}
pat nop
kills ALL
gen Call {label,".nop"}
pat rck
with hl_or_de STACK
pat rtt leaving ret 0
pat sig
with dereg
uses hlreg
gen lhld {label,".trapproc"}
xchg.
shld {label,".trapproc"} yields de
with STACK
uses hlreg
gen lhld {label,".trapproc"}
xthl.
shld {label,".trapproc"}
pat sim
with hlreg
gen shld {label,".ignmask"}
pat str $1==0
with localbase
pat str $1==1
with hlreg
gen sphl.
pat str $1==2
with hlreg
gen shld {label,".reghp"}
pat trp
kills ALL
gen Call {label,".trp"}