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020gen.e
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020gen.e
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-> EEC/020gen.e
/* formerly ECX/m68gen.e */
/* EEC by Samuel D. Crow [samuraileumas yahoo com] is Copyright (c) 2019 */
/* ECX by Leif Salomonsson [ecx tele2 se] is Copyright (c) 2002-2008 */
/* Released under the ECX COMPILER LICENSE, See ECXCOMPILERLICENSE.TXT */
-> File created May 2008, extracted from codegen.e.
OPT MODULE
OPT PREPROCESS
OPT LARGE
->#define DBG_M68GEN
MODULE '*codegen'
MODULE '*compiler'
MODULE '*assembler'
MODULE '*opcodes68'
MODULE '*opcodesppc'
MODULE '*common'
MODULE '*inline68'
MODULE '*support'
MODULE '*runtime'
MODULE '*binary'
MODULE 'exec/lists'
#define DOSICBICOPTI
EXPORT OBJECT m68amiga OF codegen
lasttempDREG
lasttempAREG
lasttempFREG
ENDOBJECT
EXPORT DEF g_codeptr:PTR TO LONG,
g_codebuf,
g_currentproc:PTR TO proc,
g_rwreflist:PTR TO rwref,
g_globalsize,
g_databufsize,
g_databuf:PTR TO LONG,
g_numregalloc,
g_numfregalloc,
g_gvarlist:PTR TO gvar,
g_regusetab:PTR TO oreg
EXPORT DEF g_od:PTR TO LONG -> shared with inline.e
EXPORT DEF g_lastx:PTR TO lastx
DEF g_exceptlab:PTR TO codelab
DEF g_endexceptlab:PTR TO codelab
DEF g_procendlab:PTR TO codelab
DEF g_d64bottom -> offset of bottom of d64 stack
DEF g_lastd64 -> actuall frameoffset and always negative
EXPORT DEF g_librarymode, g_optmodule, g_optroundnear
EXPORT DEF
g_dreg, -> RX/DRX
g_areg, -> RX/ARX
g_freg, -> FPX
g_vreg, -> VX
g_d64reg, -> D64 v55
g_ireg0, -> R3/D0 (non obtainable)
g_ireg1, -> R4/D1
g_freg0, -> FP1, F1
g_stackreg, -> R1/A7 (non obtainable, dedicated)
g_selfreg, -> R12/A0
g_globreg, -> R13/A4 (non obtainable, dedicated)
g_framereg, -> R1/A5 (non obtainable, dedicated)
g_atemp, -> R11/A6 (non obtainable)
g_dtemp, -> R12/D3 (non obtain)
g_ftemp, -> FP0/F0 (non obtain)
g_d64temp -> v55
EXPORT DEF g_multireturn:PTR TO multireturn
EXPORT DEF g_modulelist:PTR TO mlh, link_globaldatasize -> for .putInit()
PROC init() OF m68amiga
#ifdef DBG_M68GEN
DEBUGF('m8amiga.init()\n')
#endif
DREG := DRX
AREG := ARX
FREG := FPX
D64REG := D64 -> 2.3
IREG0 := 0 -> D0
IREG1 := 1 -> D1
FREG0 := 1
STACKREG := 7 -> A7
SELFREG := 0 -> A0 self arg
GLOBREG := 4 -> A4
FRAMEREG := 5 -> A5
ATEMP := 6 -> A6. non obtainable ptr scratch
DTEMP := 3 -> d3 v50
FTEMP := 0 -> f0 v50
D64TEMP := 0 -> is set by self.doprochead()
self.lasttempDREG := 1
self.lasttempAREG := 1
self.lasttempFREG := 1
ENDPROC
PROC putInit(globalsize, ivarsize) OF m68amiga
#ifdef DBG_M68GEN
DEBUGF('put68KInit()\n')
#endif
moveaxpofsax(SIZE_L,7,4,0) -> move.l 4(a7), a0 -> rwmemory
putRWInit()
leaaxpofsax(0,ivarsize,0) -> lea IVARSSIZE(a0), a0
moveaxax(SIZE_L,0,GLOBREG) -> a4 is set up !
-> set up a0 to globaldata
addlimmax(globalsize, 0) -> add.l #g_globalsize, a0
self.putGlobInit()
putModulesInit()
moveaxdx(SIZE_L,0,0) -> 1.10.0, return end of globdata so we may place stak after also in libmode
rts_() -> returns endofglobdata in d0
ENDPROC
PROC putRWInit()
DEF mod:PTR TO moduleheader
DEF info:PTR TO modinfo
DEF t
DEF lptr:PTR TO LONG
DEF a
mod := g_modulelist.head
WHILE mod.succ
info := mod.datainfo
IF info
info := info + mod
lptr := info + SIZEOF modinfo
a := info.count+1
WHILE a--
t := lptr[]++
IF t THEN movelimmaxpi(t, 0) ELSE addqax(SIZE_L,4,0)
ENDWHILE
ENDIF
mod := mod.succ
ENDWHILE
lptr := g_databuf
a := Shr(g_databufsize, 2) + 1
WHILE a--
t := lptr[]++
IF t THEN movelimmaxpi(t, 0) ELSE addqax(SIZE_L,4,0)
ENDWHILE
ENDPROC
-> 2.2 now called directly from main in module mode
PROC putGlobInit() OF m68amiga
DEF gvar:PTR TO gvar
-> initialise globals (v44)
gvar := g_gvarlist
WHILE gvar
link_globaldatasize := link_globaldatasize + initGvar(gvar)
gvar := gvar.next
ENDWHILE
IF g_optmodule THEN rts_() -> 2.2
ENDPROC
PROC putModulesInit()
DEF mod:PTR TO moduleheader, info:PTR TO modinfo, t
mod := g_modulelist.head
WHILE mod.succ
info := IF mod.headsize < 160 THEN NIL ELSE mod.globinitinfo
IF info
IF mod.cpu <> CPU_M68 THEN reportErr('init code cpu mismatch for module', mod.mname)
info := info + mod
t := info.misc - (currentOffset() + 2)
bsrofs32(t)
ENDIF
mod := mod.succ
ENDWHILE
ENDPROC
#define AxToGlobal(x) IF gvar.link THEN movelaxaxplab(x, GLOBREG, gvar) ELSE \
moveaxaxpofs(SIZE_L,x,GLOBREG,gvar.offset)
#define FpxToGlobal(x) IF gvar.link THEN fmovefpxaxplab(FD,x,GLOBREG,gvar.offset) ELSE \
fmovefpxaxpofs(FD,x,GLOBREG,gvar.offset)
PROC initGvar(gvar:PTR TO gvar)
DEF t, globaldatasize=0
IF gvar.type.numes
SELECT 256 OF gvar.type.esize
CASE 1
IF gvar.cmplx -> STRING
globaldatasize := 8 + (t := gvar.type.numes + 1 + 3 AND $FFFC)
addqax(SIZE_L,4,0) -> next=NIL
movelimmaxpi(Shl(gvar.type.numes,16),0) -> max,curr
clraxp(SIZE_L,0)
AxToGlobal(0)
addlimmax(t,0)
ELSE -> ARRAY OF CHAR
globaldatasize := (t := gvar.type.numes + 3 AND $FFFC)
AxToGlobal(0)
addlimmax(t,0)
ENDIF
CASE 2 -> ARRAY OF INT
globaldatasize := (t := gvar.type.numes * 2 + 3 AND $FFFFFC)
AxToGlobal(0)
addlimmax(t,0)
CASE 4
IF gvar.cmplx -> LIST
globaldatasize := 8 + (t := gvar.type.numes * 4)
addqax(SIZE_L,4,0) -> next=NIL
movelimmaxpi(Shl(gvar.type.numes,16),0) -> max,curr
AxToGlobal(0)
addlimmax(t,0)
ELSE -> ARRAY OF LONG
globaldatasize := (t := gvar.type.numes * 4)
AxToGlobal(0)
addlimmax(t,0)
ENDIF
CASE 8
globaldatasize := (t := gvar.type.numes * 8)
AxToGlobal(0)
addlimmax(t,0)
CASE 255 -> (ARRAY OF) OBJECT
IF gvar.type.object.nrofmethods
addWarning('methods will not be installed for global')
ENDIF
globaldatasize := (t := gvar.type.numes *
gvar.type.object.sizeof + 3 AND $FFFFFC)
AxToGlobal(0)
addlimmax(t,0)
ENDSELECT
ELSEIF gvar.defo
IF gvar.type.size = 4
movelimmax(gvar.defd, 1)
AxToGlobal(1)
ELSE
IF gvar.type.flags AND MEMBF_FLOAT
fmovesimmfpx(gvar.defd, 0)
FpxToGlobal(0)
ELSE -> 2.2
movelimmaxpd(gvar.defd, 7)
movelimmaxpd(Shr(gvar.defd,31), 7)
fmoveaxpifpx(FD, 7, 0)
FpxToGlobal(0)
ENDIF
ENDIF
ENDIF
ENDPROC globaldatasize
PROC abiArgs(array:PTR TO LONG, numargs, flags) OF m68amiga
DEF va:PTR TO arg, a, fnum=1
-> 1.8.0 flags does nada in 68k mode for now
FOR a := 0 TO numargs-1
va := array[a]
IF va.type.size = 4
va.rtype := M68ARGTYPE_STACK -> stack
va.rnum := NIL -> not used
ELSEIF va.type.size = 8
IF va.type.flags AND MEMBF_FLOAT
IF fnum < 8
va.rtype := M68ARGTYPE_FREG -> float reg
va.rnum := fnum++
ELSE
reportErr('too many REAL arguments for procedure (bug author)')
ENDIF
ELSE
-> 2.2.4, wide!
va.rtype := M68ARGTYPE_STACK_WIDE
va.rnum := NIL
ENDIF
ENDIF
ENDFOR
ENDPROC
PROC abiReturns(mret:PTR TO multireturn) OF m68amiga
DEF reg=0, freg=1, t
t := mret.ros[0]
SELECT t
CASE DREG ; mret.rds[0] := reg++
CASE FREG ; mret.rds[0] := freg++
CASE X2R ; mret.rds[0] := freg++
DEFAULT ; reportIErr('m68amiga.abiReturns 0 t=?')
ENDSELECT
t := mret.ros[1]
SELECT t
CASE DREG ; mret.rds[1] := reg++
CASE FREG ; mret.rds[1] := freg++
CASE X2R ; mret.rds[1] := freg++
DEFAULT ; reportIErr('m68amiga.abiReturns 1 t=?')
ENDSELECT
t := mret.ros[2]
SELECT t
CASE DREG ; mret.rds[2] := reg++
CASE FREG ; mret.rds[2] := freg++
CASE X2R ; mret.rds[2] := freg++
DEFAULT ; reportIErr('m68amiga.abiReturns 2 t=?')
ENDSELECT
t := mret.ros[3]
SELECT t
CASE DREG ; mret.rds[3] := reg++
CASE FREG ; mret.rds[3] := freg++
CASE X2R ; mret.rds[3] := freg++
DEFAULT ; reportIErr('m68amiga.abiReturns 3 t=?')
ENDSELECT
ENDPROC
-> v50: support for doubleargs
-> 2.3 added wide support
PROC doProcfunc(buf:PTR TO item, meth=NIL:PTR TO proc) OF m68amiga
DEF n:PTR TO item, hln:PTR TO hln, proc:PTR TO proc
DEF regusecopy[REGUSETABSIZE]:ARRAY OF oreg -> v44, 49
DEF a, as, as2, param:PTR TO var
DEF stub:PTR TO codelab, endstub:PTR TO codelab, trap:PTR TO codelab
DEF nrofparams, t:PTR TO LONG
DEF o,d, var:PTR TO var, float
DEF argtype
DEF it_funccall:PTR TO it_funccall
DEF ro, rd
DEF rems=0:PTR TO LONG, noraise
it_funccall := buf.info
hln := it_funccall.data ->n.info
nrofparams := it_funccall.numpars ->buf.num
n := it_funccall + SIZEOF it_funccall ->n++ -> skip label
#ifdef DBG_M68GEN
DEBUGF('.doProcfunc() \s numargs=\d\n', hln.name, nrofparams)
#endif
IF meth = NIL
self.saveObtained(regusecopy)
proc := hln.ident
IF proc = NIL THEN reportErr('unknown function', hln.name)
proc.referenced := 1
ELSE
proc := meth
ENDIF
ro := proc.mret.ros[0]
rd := proc.mret.rds[0]
IF nrofparams > proc.nrofargs THEN reportErr('too many parameters for procedure', proc.name)
IF (nrofparams+proc.nrofdefaults) < proc.nrofargs THEN reportErr('too few parameters for procedure', proc.name)
FOR a := 0 TO proc.nrofargs-1
param := proc.argarray[a]
IF n.data
n, as, as2 := self.doExpression(n)
IF param.rtype = M68ARGTYPE_FREG -> doublearg ? v50
inst_copy(as,as2, FPX,param.rnum)
self.copyObtainToFREG(FPX,param.rnum) -> put an obtain on register
ELSEIF param.rtype = M68ARGTYPE_STACK_WIDE -> 2.3
self.tox2r(as, as2, FTEMP)
inst_push(8, FREG, FTEMP)
rems++ ; rems++
ELSE
inst_push(4, as,as2)
rems++
ENDIF
ELSE
IF param.rtype = M68ARGTYPE_FREG -> doublearg ? v50
inst_copy(DV, param.defd, FPX, param.rnum)
self.copyObtainToFREG(FPX,param.rnum) -> put an obtain on register
ELSEIF param.rtype = M68ARGTYPE_STACK_WIDE -> 2.3
self.tox2r(DV, param.defd, FTEMP)
inst_push(8, FREG, FTEMP)
rems++ ; rems++
ELSE
inst_push(4, DV, param.defd)
rems++
ENDIF
ENDIF
ENDFOR
IF meth = NIL
IF proc.cpu = 1 -> 68k calling ppc
t := [DRX,0,0,DRX,1,4,DRX,2,8,DRX,3,12,ARX,0,32,ARX,1,36,ARX,2,40,ARX,3,44]
FOR a := (proc.nrofargs-1) TO 0 STEP -1 -> into 68k trash regs
IF t[a*3] = DRX THEN moveaxpidx(SIZE_L,7, t[a*3+1]) ELSE moveaxpiax(SIZE_L,7, t[a*3+1])
ENDFOR
trap := newLabel()
stub := newLabel()
endstub := newLabel()
bsrlab(trap)
bcclab(T,endstub) -> v49
putLabel(trap)
Put32($FF000000)
putReloc(stub)
putAlign(4) -> v49
putLabel(stub)
ppcstwu(1,1,-16) -> v49
ppcmfspr(0,8) -> v49
ppcstw(0,1,16+FRAMEPPC_LINKREG) -> v49
ppcstw(13,1,8) -> v49
ppclwz(13,2,48) -> v49
FOR a := 0 TO proc.nrofargs-1 -> from emulhand into ppcregs
ppclwz(a+3,2,t[a*3+2]) -> v49 fix
ENDFOR
ppcblab(proc,0,1) -> call ppc proc
ppclwz(13,1,8) -> v49
ppclwz(0,1,16+FRAMEPPC_LINKREG) -> v49
ppcmtspr(0,8) -> v49
ppcaddi(1,1,16) -> v49
ppcbclr(20,0,0) -> v49
putLabel(endstub) -> v49
ELSE
-> v50, release any doubleargregisters
FOR a := 0 TO nrofparams-1
param := proc.argarray[a]
IF param.rtype = 1 THEN self.releaseFREG(param.rnum,0)
ENDFOR
-> call function
inst_goslab(proc)
inst_incarx(STACKREG, rems)
ENDIF
ro, rd := self.secureReturn(ro, rd, regusecopy) -> v50
self.loadObtained(regusecopy)
clearRegs()
ENDIF
#ifdef DBG_M68GEN
DEBUGF('dofunction() \s DONE\n', hln.name)
#endif
IF proc.raise -> 2.2
noraise := newLabel()
inst_bic(DV,proc.raise.trigval,proc.raise.condition, ro,rd,noraise)
inst_push(4,DV,proc.raise.excval)
bsrlab(self.raise_lif)
def_label(noraise)
ENDIF
n := buf[1]
g_multireturn := proc.mret -> v49
ENDPROC n, ro, rd
-> 1.10.0 added support for new style varfunc
-> 2.3 added wide support
PROC doVarfunc(n:PTR TO item) OF m68amiga
DEF v:PTR TO var, r, count=0
DEF regusecopy[REGUSETABSIZE]:ARRAY OF oreg
DEF var:PTR TO var, o, d, arx
DEF it_funccall:PTR TO it_funccall
DEF ro, rd, a, param:PTR TO arg
r := n[1]
it_funccall := n.info
v := it_funccall.data
n := it_funccall + SIZEOF it_funccall
#ifdef DBG_M68GEN
DEBUGF('dovfunction() \s \n', v.hln.name)
#endif
self.saveObtained(regusecopy)
IF v.argsarray = FALSE
ro := DREG
rd := IREG0
WHILE n.data
count++
n, o, d := self.doExpression(n)
inst_push(4,o,d)
ENDWHILE
ELSE -> 1.10.0
FOR a := 0 TO ListLen(v.argsarray)-1
param := v.argsarray[a]
n, o, d := self.doExpression(n)
IF param.rtype = M68ARGTYPE_FREG -> doublearg ?
inst_copy(o,d, FPX,param.rnum)
self.copyObtainToFREG(FPX,param.rnum) -> put an obtain on register
ELSEIF param.rtype = M68ARGTYPE_STACK_WIDE -> 2.3
inst_push(8, o,d)
count++ ; count++
ELSE
inst_push(4, o,d)
count++
ENDIF
ENDFOR
ro := IF v.multiret THEN v.multiret.ros[0] ELSE DREG
rd := IF v.multiret THEN v.multiret.rds[0] ELSE IREG0
ENDIF
arx := self.copyObtainToAREG(v.o,v.d) -> v49
jsraxp(arx)
self.releaseAREG(arx,0) -> v49
inst_incarx(STACKREG, count*4)
ro, rd := self.secureReturn(ro, rd, regusecopy)
self.loadObtained(regusecopy)
clearRegs()
g_multireturn := IF v.multiret THEN v.multiret ELSE [ro,DREG,DREG,DREG,rd,1,2,3]:LONG
#ifdef DBG_M68GEN
DEBUGF('dovfunction() \s DONE\n', v.hln.name)
#endif
ENDPROC r, ro, rd
-> v50: added support for doubleargs
PROC doIntfunc(n:PTR TO item) OF m68amiga
DEF buf:PTR TO item, r:PTR TO raise, o, d, a, t
DEF numparams, defs:PTR TO LONG
DEF ifunc:PTR TO lif, regusecopy[REGUSETABSIZE]:ARRAY OF oreg
DEF hln:PTR TO hln, varargsofs:PTR TO LONG, var:PTR TO var
DEF noraise:PTR TO genlab, numvarargs
DEF o2,d2
DEF ifNumArgs
DEF it_funccall:PTR TO it_funccall
DEF ro, rd , fpx=1
DEF ha:hintargs
ha.hregisvar := FALSE
buf := n
it_funccall := n.info
numparams := it_funccall.numpars
ifunc := it_funccall.data
n := it_funccall + SIZEOF it_funccall
ifNumArgs := ListLen(ifunc.params)
#ifdef DBG_M68GEN
DEBUGF('doifunction() \s \n', ifunc.name)
#endif
self.saveObtained(regusecopy)
defs := ifunc.defaults
SELECT 5 OF ifunc.returns
CASE 0
ro := DRX
rd := IREG0
CASE 1
ro := FPX
rd := FREG0
CASE 2
ro := X2R
rd := 1
DEFAULT
reportIErr('m68.doIntFunc ifunc.returns ?')
ENDSELECT
FOR a := 0 TO ifNumArgs-1
IF n.data
t := ListItem(ifunc.params,a)
IF t = 1 -> doublearg ?
ha.hregop := FREG
ha.hregnum := fpx
n, o, d := self.doExpression(n, ha)
inst_copy(o,d, FPX,fpx)
self.copyObtainToFREG(FPX,fpx)
fpx++
ELSEIF t = 2 -> wide
n, o, d := self.doExpression(n)
self.tox2r(o, d, FTEMP)
inst_push(8, FREG, FTEMP)
ELSE
n, o, d := self.doExpression(n)
inst_push(4,o,d)
ENDIF
ELSE /* default value used */
t := ListItem(ifunc.params,a)
IF t = 1 -> doublearg ?
inst_copy(DV,defs[]++, FPX,fpx)
self.copyObtainToFREG(FPX,fpx)
fpx++
ELSEIF t = 2 -> wide
self.tox2r(DV, defs[]++, FTEMP)
inst_push(8, FREG, FTEMP)
ELSE
inst_push(4,DV,defs[]++)
ENDIF
ENDIF
ENDFOR
-> fixing to support 64bit varargs
IF ifunc.flags = 2 -> varargs ?
numvarargs := numparams - ifNumArgs
inst_decarx(7, numvarargs * 8) -> alloc enough for wide arguments!
-> push varargs
varargsofs := 0
WHILE n.data
n, o, d := self.doExpression(n)
SELECT 20 OF o
CASE VAR64, X2R, FPX, D64
inst_copy(o,d, ARXPO,AxSizeOfs(7,8,varargsofs++))
varargsofs++
DEFAULT
inst_copy(o,d, ARXPO,AxSizeOfs(7,4,varargsofs++))
ENDSELECT
ENDWHILE
inst_push(4, DV,numvarargs*8)
inst_goslab(ifunc)
inst_incarx(7, ifNumArgs+1*4+(numvarargs*8))
ELSE
WHILE fpx > 1
fpx--
self.releaseFREG(fpx,0)
ENDWHILE
inst_goslab(ifunc)
inst_incarx(7, ifNumArgs*4)
ENDIF
ro, rd := self.secureReturn(ro, rd, regusecopy) -> v50
self.loadObtained(regusecopy)
clearRegs()
IF ifunc.raise
noraise := newLabel()
inst_bic(DV,ifunc.raise.trigval,ifunc.raise.condition, ro,rd,noraise)
inst_push(4,DV,ifunc.raise.excval)
bsrlab(self.raise_lif)->g_internalfuncs[IF68K_RAISE]) -> Raise
def_label(noraise)
ENDIF
g_multireturn := [ro,DREG,DREG,DREG,rd,1,2,3]:LONG
#ifdef DBG_M68GEN
DEBUGF('doiunction() \s DONE\n', ifunc.name)
#endif
ENDPROC buf[1], ro, rd
PROC doLibfunc(n:PTR TO item) OF m68amiga
DEF buf:PTR TO item, a, o, d, libbase:PTR TO var, r:PTR TO raise
DEF regusecopy[REGUSETABSIZE]:ARRAY OF oreg, lfunc:PTR TO lfunc, hln:PTR TO hln
DEF numparams, t, var:PTR TO var
DEF o2, d2, t2, noraise:PTR TO genlab
DEF it_funccall:PTR TO it_funccall
DEF ro, rd
buf := n
it_funccall := n.info
numparams := it_funccall.numpars
lfunc := it_funccall.data
libbase := it_funccall.info
n := it_funccall + SIZEOF it_funccall
IF numparams <> lfunc.nrofargs THEN reportErr('wrong nr of parameters for function', lfunc.name)
#ifdef DBG_M68GEN
DEBUGF('dolfunction() \s \n', lfunc.name)
#endif
IF lfunc.type = 1 THEN reportErr('cannot call sysv from 68k (duh)')
ro := DREG
rd := IREG0
self.saveObtained(regusecopy)
/* save regs ? */
FOR a := numparams-1 TO 0 STEP -1 -> reverse order !
t := lfunc.regs[a].rnum
IF lfunc.regs[a].rtype
SELECT 8 OF t
CASE 4, 5 ; moveaxaxpd(SIZE_L,t,7) -> a4,a5
ENDSELECT
ELSE
SELECT 16 OF t
CASE 4,5,6,7 ; movedxaxpd(SIZE_L,t,7) -> d4-d7
ENDSELECT
ENDIF
ENDFOR
/* put on stack */
FOR a := 0 TO numparams-1
n, o, d := self.doExpression(n)
inst_push(4,o,d)
ENDFOR
/* set librarybase */
inst_copy(libbase.o,libbase.d, ARX,6)
/* set up parameters (by copying to regs) */
FOR a := numparams-1 TO 0 STEP -1
t2 := lfunc.regs[a]
o2 := IF lfunc.regs[a].rtype THEN ARX ELSE DRX
d2 := lfunc.regs[a].rnum
inst_pop(4,o2,d2)
ENDFOR
jsraxpofs(6,lfunc.baseofs)
/* restore regs ? */
FOR a := 0 TO numparams-1 -> non-reversed..
t := lfunc.regs[a].rnum
IF lfunc.regs[a].rtype
SELECT 16 OF t
CASE 4,5 ; moveaxpiax(SIZE_L,7,t) -> a4,a5
ENDSELECT
ELSE
SELECT 16 OF t
CASE 4,5,6,7 ; moveaxpidx(SIZE_L,7,t) -> d4-d7
ENDSELECT
ENDIF
ENDFOR
ro, rd := self.secureReturn(ro, rd, regusecopy)
self.loadObtained(regusecopy)
clearRegs()
IF lfunc.raise
noraise := newLabel()
inst_bic(DV,lfunc.raise.trigval,lfunc.raise.condition, ro,rd,noraise)
inst_push(4,DV,lfunc.raise.excval)
bsrlab(self.raise_lif)->g_internalfuncs[IF68K_RAISE]) -> Raise
def_label(noraise)
ENDIF
g_multireturn := [DREG,DREG,NIL,NIL,0,1,0,0]:LONG
#ifdef DBG_M68GEN
DEBUGF('dolfunction() \s DONE\n', lfunc.name)
#endif
ENDPROC buf[1], ro, rd
-> 2.3 added wide support
PROC doReturn(buf, ret) OF m68amiga
DEF n:PTR TO item
DEF o,d, x, t
DEF a=0, t1:PTR TO CHAR, t2:PTR TO CHAR
DEF m:PTR TO multireturn
DEF numrets
DEF ha:hintargs
ha.hregisvar := FALSE
m := g_currentproc.mret
#ifdef DBG_M68GEN
DEBUGF('doreturn($\h,\d)\n', buf, ret)
#endif
n := buf
numrets := n.num
IF numrets > 3 THEN reportErr('too many returnvalues')
n++
self.endLocalClasses(g_currentproc)
FOR a := 0 TO numrets-1
ha.hregop := m.ros[a]
ha.hregnum := m.rds[a]
n, o, d := self.doExpression(n, ha)
IF m.ros[a] = X2R
self.tox2r(o,d,m.rds[a])
ELSE
inst_copy(o,d, m.ros[a],m.rds[a])
ENDIF
IF m.ros[a] = DREG
self.copyObtainToDREG(DREG,m.rds[a]) -> obtain register
ELSEIF (m.ros[a] = FREG) OR (m.ros[a] = X2R)
self.copyObtainToFREG(FREG,m.rds[a]) -> obtain register
ENDIF
ENDFOR
FOR a := 0 TO numrets-1
IF m.ros[a] = DREG
self.releaseDREG(m.rds[a],0)
ELSEIF (m.ros[a] = FREG) OR (m.ros[a] = X2R)
self.releaseFREG(m.rds[a],0)
ENDIF
ENDFOR
IF numrets = 0 THEN inst_copy(DV,NIL, DREG,IREG0)
IF ret THEN inst_ret(0)
#ifdef DBG_M68GEN
DEBUGF('doreturn DONE()\n')
#endif
ENDPROC n, NIL, NIL
-> v50 (1.5.1)
-> v55: arg: neg=>unary
-> v58, changes
PROC mathlogichead(n:PTR TO item, mode, unary, ha_:PTR TO hintargs) OF m68amiga
DEF yreg, regusecopy[REGUSETABSIZE]:ARRAY OF oreg, ro, rd
DEF o,d, ha:hintargs
-> 2.3
SELECT mode
CASE MODE_DEFAULT
self.saveObtained(regusecopy) -> 1.8.0
yreg := self.obtainDREG()
ha.hregop := DREG
ha.hregnum := yreg
ha.hregisvar := FALSE
CASE MODE_FLOAT
yreg := self.obtainFREG()
ha.hregop := FREG
ha.hregnum := yreg
ha.hregisvar := FALSE
CASE MODE_D64
yreg := self.obtainD64()
ha.hregop := D64REG
ha.hregnum := yreg
ha.hregisvar := FALSE
DEFAULT
reportIErr('mathlogichead mode')
ENDSELECT
n, o, d := self.doSingleExp(n, ha)
IF mode = MODE_FLOAT
->yreg := self.obtainFREG() -> we need a write mode obtain
inst_copy(o,d, FREG,yreg)
IF unary = "_"
inst_fnegreg(yreg)
ELSEIF unary = KW_ABS -> 2.2
inst_fabsreg(yreg)
ENDIF
n, ro, rd := self.domathlogictail(n, MODE_FLOAT, yreg)
ELSEIF mode = MODE_DEFAULT
->yreg := self.obtainDREG() -> we need a write mode obtain
inst_copy(o,d, DREG,yreg)
IF unary = "-"
inst_negreg(yreg)
ELSEIF unary = "~"
inst_notreg(yreg)
ELSEIF unary = KW_ABS -> 2.2
inst_absreg(yreg)
ENDIF
n, ro, rd := self.domathlogictail(n, MODE_DEFAULT, yreg)
ELSEIF mode = MODE_D64 -> 1.10.0
->yreg := self.obtainD64() -> we need a write mode obtain
inst_copy(o,d, D64REG,yreg)
IF unary = "-"
inst_negd64(yreg)
ELSEIF unary = "~"
inst_notd64(yreg)
ELSEIF unary = KW_ABS -> 2.2
inst_absd64(yreg)
ENDIF
n, ro, rd := self.domathlogictail(n, MODE_D64, yreg)
ENDIF
IF mode = MODE_DEFAULT
-> 1.8.0
ro, rd := self.secureReturn(ro, rd, regusecopy)
self.loadObtained(regusecopy)
clearRegs()
ENDIF
ENDPROC n, ro, rd
-> 1.8.1
PROC m68RegisterizeD(o,d:PTR TO var) OF m68amiga
IF o = DREG
RETURN d
ELSEIF o = VAR
IF d.intreg AND d.trok AND (d.treg<8) THEN RETURN d.treg
ENDIF
inst_copy(o,d, DREG,DTEMP)
ENDPROC DTEMP
-> 1.8.1
PROC m68RegisterizeA(o,d:PTR TO var) OF m68amiga
IF o = AREG
RETURN d
ELSEIF o = VAR
IF d.intreg AND d.trok AND (d.treg>7) THEN RETURN d.treg-8
ENDIF
inst_copy(o,d, AREG,ATEMP)
ENDPROC ATEMP
-> 1.8.1
PROC m68RegisterizeF(o,d:PTR TO var) OF m68amiga
IF o = FREG
RETURN d
ELSEIF o = VAR64
IF d.intreg AND d.trok THEN RETURN d.treg
ENDIF
inst_copy(o,d, FREG,FTEMP)
ENDPROC FTEMP
/*
0 Dx
1 Ax
2 (Ax)
3 (Ax)+
4 -(Ax)
5 ofs(Ax) arg local .memb(Ax:obj) LibFunc(Ax)
6 lab(Ax) global
7 (Ax,Dx.L*Scale) (Ax,Dx.L) (Ax,Dx)
8 #imm #constexp
9 lab(PC) lab proc
*/
->-- 68k single operand parser ---
PROC getop68(n:PTR TO item, values:PTR TO LONG)
DEF t, ax, dx, scale=1, ri, as,as2, ofs, node:PTR TO var
DEF id, memb:PTR TO member, hln:PTR TO hln, proc:PTR TO proc
DEF var:PTR TO var, reg:PTR TO reg, lab:PTR TO codelab
t := n.data
SELECT 256 OF t
CASE "-" -> -(Ax)
n++
n++
reg := n.info
RETURN n[2], 4, ListAdd(values, [reg.num])
CASE IT_VALUE -> ofs(Ax), ofs(Ax,Dx), ofs(Ax,Dx*scale)
ofs := n.info
n++
n++ -> skip "("
reg := n.info
ax := reg.num
n++
IF n.data <> IT_REG
RETURN n[1], 5, ListAdd(values, [ax, ofs])
ELSE
-> indexed
reg := n.info
dx := reg.num
IF n.num
IF n.num <> "L" THEN reportErr('wrong size of value')
ENDIF
n++
IF n.data = IT_VALUE
scale := n.info
n++
ELSE
scale := 1
ENDIF
n++ -> skip ")"
RETURN n, 7, ListAdd(values, [ax, dx, scale, ofs])
ENDIF
CASE "("