mloopa
mloopb
mloopc
+con_float.c
FILES=deffile $P0 $P1 $P2 $P3 $P4 $P5 $P6 $P7 $P8 $P9 $Pa $Pb $Pc
CPP=../../../lib/cpp
b=../../../lib/int
-FLTRAP=-DFLTRAP
+FLTRAP=
all: $(INTS) em
tmp.s: $(FILES)
cat $(FILES) > tmp.s
-em2_t---: tmp.s compile
- ./compile -o em2_t--- -P $(FLTRAP) -Dopfreq=0 -Dlast=1 -Dcount=0 -Dtest=1 -Dflow=0 -Dprof=0 tmp.s
+em2_t---: tmp.s compile con_float.o
+ ./compile -o em2_t--- -P $(FLTRAP) -Dopfreq=0 -Dlast=1 -Dcount=0 -Dtest=1 -Dflow=0 -Dprof=0 tmp.s con_float.o
-em2_----: tmp.s compile
- ./compile -o em2_---- -P $(FLTRAP) -Dopfreq=0 -Dlast=0 -Dcount=0 -Dtest=0 -Dflow=0 -Dprof=0 tmp.s
+em2_----: tmp.s compile con_float.o
+ ./compile -o em2_---- -P $(FLTRAP) -Dopfreq=0 -Dlast=0 -Dcount=0 -Dtest=0 -Dflow=0 -Dprof=0 tmp.s con_float.o
-em2_t-cp: tmp.s compile
- ./compile -o em2_t-cp -P $(FLTRAP) -Dopfreq=0 -Dlast=1 -Dcount=1 -Dtest=1 -Dflow=0 -Dprof=1 tmp.s
+em2_t-cp: tmp.s compile con_float.o
+ ./compile -o em2_t-cp -P $(FLTRAP) -Dopfreq=0 -Dlast=1 -Dcount=1 -Dtest=1 -Dflow=0 -Dprof=1 tmp.s con_float.o
-em2_t-c-: tmp.s compile
- ./compile -o em2_t-c- -P $(FLTRAP) -Dopfreq=0 -Dlast=1 -Dcount=1 -Dtest=1 -Dflow=0 -Dprof=0 tmp.s
+em2_t-c-: tmp.s compile con_float.o
+ ./compile -o em2_t-c- -P $(FLTRAP) -Dopfreq=0 -Dlast=1 -Dcount=1 -Dtest=1 -Dflow=0 -Dprof=0 tmp.s con_float.o
-em2_t--p: tmp.s compile
- ./compile -o em2_t--p -P $(FLTRAP) -Dopfreq=0 -Dlast=1 -Dcount=0 -Dtest=1 -Dflow=0 -Dprof=1 tmp.s
+em2_t--p: tmp.s compile con_float.o
+ ./compile -o em2_t--p -P $(FLTRAP) -Dopfreq=0 -Dlast=1 -Dcount=0 -Dtest=1 -Dflow=0 -Dprof=1 tmp.s con_float.o
-em4_t---: tmp.s compile
- ./compile -o em4_t--- -P $(FLTRAP) -Dlword -Dopfreq=0 -Dlast=1 -Dcount=0 -Dtest=1 -Dflow=0 -Dprof=0 tmp.s
+em4_t---: tmp.s compile con_float.o
+ ./compile -o em4_t--- -P $(FLTRAP) -Dlword -Dopfreq=0 -Dlast=1 -Dcount=0 -Dtest=1 -Dflow=0 -Dprof=0 tmp.s con_float.o
-em4_----: tmp.s compile
- ./compile -o em4_---- -P $(FLTRAP) -Dlword -Dopfreq=0 -Dlast=0 -Dcount=0 -Dtest=0 -Dflow=0 -Dprof=0 tmp.s
+em4_----: tmp.s compile con_float.o
+ ./compile -o em4_---- -P $(FLTRAP) -Dlword -Dopfreq=0 -Dlast=0 -Dcount=0 -Dtest=0 -Dflow=0 -Dprof=0 tmp.s con_float.o
-em4_t-cp: tmp.s compile
- ./compile -o em4_t-cp -P $(FLTRAP) -Dlword -Dopfreq=0 -Dlast=1 -Dcount=1 -Dtest=1 -Dflow=0 -Dprof=1 tmp.s
+em4_t-cp: tmp.s compile con_float.o
+ ./compile -o em4_t-cp -P $(FLTRAP) -Dlword -Dopfreq=0 -Dlast=1 -Dcount=1 -Dtest=1 -Dflow=0 -Dprof=1 tmp.s con_float.o
-em4_t-c-:tmp.s compile
- ./compile -o em4_t-c- -P $(FLTRAP) -Dlword -Dopfreq=0 -Dlast=1 -Dcount=1 -Dtest=1 -Dflow=0 -Dprof=0 tmp.s
+em4_t-c-:tmp.s compile con_float.o
+ ./compile -o em4_t-c- -P $(FLTRAP) -Dlword -Dopfreq=0 -Dlast=1 -Dcount=1 -Dtest=1 -Dflow=0 -Dprof=0 tmp.s con_float.o
-em4_t--p: tmp.s compile
- ./compile -o em4_t--p -P $(FLTRAP) -Dlword -Dopfreq=0 -Dlast=1 -Dcount=0 -Dtest=1 -Dflow=0 -Dprof=1 tmp.s
+em4_t--p: tmp.s compile con_float.o
+ ./compile -o em4_t--p -P $(FLTRAP) -Dlword -Dopfreq=0 -Dlast=1 -Dcount=0 -Dtest=1 -Dflow=0 -Dprof=1 tmp.s con_float.o
+
+con_float.o: con_float.c compile
+ ./compile -c -L -O con_float.c
compile: Makefile
case `ack_sys` in sun*) MACH=sun2;; pmds*) MACH=pmds4;; \
m68_sysV_0) MACH=mantra;; \
m68k2) MACH=m68k2;; *) MACH=m68k4;; \
- esac ; echo $$MACH -.m '$$*' > compile; chmod +x compile
+ esac ; echo $$MACH -r.c -.m -fp '$$*' > compile; chmod +x compile
install: all
-mkdir $b24 $b44
ls em2_???? | sed 's:em2_\(.*\):cp & $b24/em_\1:' | sh
--- /dev/null
+/* unfortunately, we cannot just do an atof and convert result to float
+ is neccessary, because that might result in over/underflow at an
+ unexpected moment. For the time being, overflow in floating point
+ constants goes undetected
+*/
+con_float(argval, str, res)
+ char *str, *res;
+{
+ double f;
+ double atof();
+ int i;
+ double frexp(), ldexp();
+ int j;
+ float fl;
+ char *p;
+
+ f = atof(str);
+ if (f == 0 || argval == 8) {
+ p = (char *) &f;
+ while (argval--) *res++ = *p++;
+ return;
+ }
+ f = frexp(f, &i);
+ fl = f;
+ fl = frexp(fl,&j);
+ if (i+j > 127) {
+ /* overflow situation. Unfortunately we don't have the
+ slightest idea where the floating point constant came
+ from, so, for the time being, just ignore
+ */
+ *res++ = f < 0 ? 0377 : 0177;
+ *res++ = 0377;
+ *res++ = 0377;
+ *res = 0377;
+ return;
+ }
+ if (i+j < -127) {
+ /* underflow situation. Unfortunately we don't have the
+ slightest idea where the floating point constant came
+ from, so, for the time being, just ignore
+ */
+ *res++ = f < 0 ? 0200 : 0;
+ *res++ = 0200;
+ *res++ = 0;
+ *res = 0;
+ return;
+ }
+ fl = ldexp(fl, i+j);
+ p = (char *) &fl;
+ while (argval--) *res++ = *p++;
+}
bcc 7f ;\
cmp.l a6,a0 ;\
bcc 6f
+#define checkfsize cmp.w #4,d0 ; beq 4f ; cmp.w #8,d0 ; beq 8f ; bra e_oddz
bne 6b ; add.l d3,a3
bra datloop
-dofloat: add.l d2,a3
- bsr atof ; bra datloop
+dofloat:
+ move.l d2,d0
+ checkfsize
+4:
+8:
+ movem.l a0/a1/d0-d2,-(sp)
+ move.l a3,-(sp)
+ add.l d0,a3
+ move.l a4,-(sp)
+ move.l d0,-(sp)
+ bsr _con_float
+ lea 12(sp),sp
+ movem.l (sp)+,a0/a1/d0-d2
+1:
+ tst.b (a4)+ ; bne 1b
+ bra datloop
+#ifdef FLTRAP
!DUMMY ASCII TO FLOAT ROUTINE
-atof: tst.b (a4)+ ; bne atof
+_con_float:
rts
-
+#else
+__fptrp:
+ move.l 4(sp),d0
+ mov d0,-(sp)
+ bra error
+#endif
blshift: move.l a1,a0 ; move.l #1024,d0
move.l d1,-(sp)
tst.l -(sp)
5: jmp (a4)
!--------------------------------------------------------------------------
+#ifdef FLTRAP
cuf_z: cfu_z: cff_z: cfi_z: cif_z:
mov (sp)+,d0 ; subt (sp)+,d0
ext.l d0
sub.l d0,sp
-#ifdef FLTRAP
bra flnim !floating point not implemented
#else
+cfu_z:
+ clr.l d0
+ mov (sp)+,d0
+ clr.l d1
+ mov (sp)+,d1
+ move.l d1,-(sp)
+ move.l d0,-(sp)
+ checksize
+2:
+ move.l #4,(sp)
+ cmp #4,d1
+ bne 1f
+ jsr .cfu
+ add #8,sp
+2:
+ mov #4,-(sp)
+ mov #2,-(sp)
+ bra cuu_z
+1:
+ cmp #8,d1
+ beq 1f
+ bra e_oddz
+1:
+ jsr .cfu
+ add #12,sp
+ bra 2b
+4:
+ mov d1,d0
+ checkfsize
+4:
+ jsr .cfu
+ add #8,sp
+ jmp (a4)
+8:
+ jsr .cfu
+ add #12,sp
+ jmp (a4)
+cfi_z:
+ clr.l d0
+ mov (sp)+,d0
+ clr.l d1
+ mov (sp)+,d1
+ move.l d1,-(sp)
+ move.l d0,-(sp)
+ checksize
+2:
+ move.l #4,(sp)
+ cmp #4,d1
+ bne 1f
+ jsr .cfi
+ add #8,sp
+2:
+ mov #4,-(sp)
+ mov #2,-(sp)
+ bra cii_z
+1:
+ cmp #8,d1
+ beq 1f
+ bra e_oddz
+1:
+ jsr .cfi
+ add #12,sp
+ bra 2b
+4:
+ mov d1,d0
+ checkfsize
+4:
+ jsr .cfi
+ add #8,sp
+ jmp (a4)
+8:
+ jsr .cfi
+ add #12,sp
+ jmp (a4)
+cuf_z:
+ mov (sp)+,d0
+ checkfsize
+4:
+ mov (sp)+,d0
+ checksize
+2:
+ clr.l d0
+ move.w (sp)+,d0
+ move.l d0,-(sp)
+4:
+ move.l #4,-(sp)
+ jsr .cuf4
+ add #4,sp
+ jmp (a4)
+8:
+ mov (sp)+,d0
+ checksize
+2:
+ clr.l d0
+ move.w (sp)+,d0
+ move.l d0,-(sp)
+4:
+ move.l #4,-(sp)
+ jsr .cuf8
+ jmp (a4)
+
+cif_z:
+ mov (sp)+,d0
+ checkfsize
+4:
+ mov (sp)+,d0
+ checksize
+2:
+ move.w (sp)+,d0
+ ext.l d0
+ move.l d0,-(sp)
+4:
+ move.l #4,-(sp)
+ jsr .cif4
+ add #4,sp
+ jmp (a4)
+8:
+ mov (sp)+,d0
+ checksize
+2:
+ move.w (sp)+,d0
+ ext.l d0
+ move.l d0,-(sp)
+4:
+ move.l #4,-(sp)
+ jsr .cif8
+ jmp (a4)
+
+cff_z:
+ mov (sp)+,d0 ;
+ checkfsize
+4:
+ mov (sp)+,d0 ; cmp #4,d0 ; beq 1f
+ cmp #8,d0 ; beq 2f
+ bra e_oddz
+2:
+ jsr .cff4
+ add #4,sp
+1:
+ jmp (a4)
+8:
+ mov (sp)+,d0 ; cmp #8,d0 ; beq 1f
+ cmp #4,d0 ; beq 2f
+ bra e_oddz
+2:
+ move.l (sp)+,d0
+ clr.l -(sp)
+ move.l d0,-(sp)
+ jsr .cff8
+1:
jmp (a4)
#endif
!------------------------------------------------------------------------------
! DUMMY FLOATING POINT ROUTINES
!------------------------------------------------------------------------------
-adf_l: sbf_l: mlf_l: dvf_l:
+adf_l:
adroff ; move.w (a5),d0
-1: add.l d0,sp
+1:
#ifdef FLTRAP
bra flnim
#else
+ checkfsize
+4:
+ jsr .adf4
+ add.l #4,sp
+ jmp (a4)
+8:
+ jsr .adf8
+ add.l #8,sp
+ jmp (a4)
+#endif
+adf_z:
+ mov (sp)+,d0 ; bra 1b
+adf_s0:
+ move.l #0,d0 ; move.b (a3)+,d0
+ bra 1b
+
+sbf_l:
+ adroff ; move.w (a5),d0
+1:
+#ifdef FLTRAP
+ bra flnim
+#else
+ checkfsize
+4:
+ jsr .sbf4
+ add.l #4,sp
+ jmp (a4)
+8:
+ jsr .sbf8
+ add.l #8,sp
+ jmp (a4)
+#endif
+sbf_z:
+ mov (sp)+,d0 ; bra 1b
+sbf_s0:
+ move.l #0,d0 ; move.b (a3)+,d0
+ bra 1b
+
+mlf_l:
+ adroff ; move.w (a5),d0
+1:
+#ifdef FLTRAP
+ bra flnim
+#else
+ checkfsize
+4:
+ jsr .mlf4
+ add.l #4,sp
+ jmp (a4)
+8:
+ jsr .mlf8
+ add.l #8,sp
jmp (a4)
#endif
-adf_z: sbf_z: mlf_z: dvf_z:
+mlf_z:
mov (sp)+,d0 ; bra 1b
-adf_s0: sbf_s0: mlf_s0: dvf_s0:
+mlf_s0:
move.l #0,d0 ; move.b (a3)+,d0
bra 1b
-fef_l: sub.l wrd,sp
-fif_l: ngf_l: adroff
-fef_z:
+
+dvf_l:
+ adroff ; move.w (a5),d0
+1:
+#ifdef FLTRAP
+ bra flnim
+#else
+ checkfsize
+4:
+ jsr .dvf4
+ add.l #4,sp
+ jmp (a4)
+8:
+ jsr .dvf8
+ add.l #8,sp
+ jmp (a4)
+#endif
+dvf_z:
+ mov (sp)+,d0 ; bra 1b
+dvf_s0:
+ move.l #0,d0 ; move.b (a3)+,d0
+ bra 1b
+
+ngf_l: adroff ; move.w (a5),d0
+1:
+#ifdef FLTRAP
+ bra flnim
+#else
+ checkfsize
+4:
+ jsr .ngf4
+ jmp (a4)
+8:
+ jsr .ngf8
+ jmp (a4)
+#endif
+ngf_z:
+ mov (sp)+,d0 ; bra 1b
+
+fif_l: adroff ; move.w (a5),d0
+1:
+#ifdef FLTRAP
+ bra flnim
+#else
+ checkfsize
+4:
+ jsr .fif4
+ jmp (a4)
+8:
+ jsr .fif8
+ jmp (a4)
+#endif
+fif_z:
+ mov (sp)+,d0 ; bra 1b
+
+fef_l: adroff ; move.w (a5),d0
+1:
#ifdef FLTRAP
bra flnim
#else
+ checkfsize
+4:
+ move.l (sp)+,d0
+ clr.l -(sp)
+ move.l d0,-(sp)
+ jsr .fef4
+#ifndef lword
+ add.l #2,sp
+#endif
+ jmp (a4)
+8:
+ move.l (sp)+,d0
+ move.l (sp)+,d1
+ clr.l -(sp)
+ move.l d1,-(sp)
+ move.l d0,-(sp)
+ jsr .fef8
+#ifndef lword
+ add.l #2,sp
+#endif
jmp (a4)
#endif
-ngf_z: fif_z: add.l wrd,sp ; bra fef_z
+fef_z: mov (sp)+,d0 ; bra 1b
! DUMMY FLOAT ROUTINES. POINTER ADJUSTMENT AND WARNING
cmf_s0: move.l d6,d0 ; move.b (a3)+,d0
+#ifdef FLTRAP
9: add.w d0,d0 ; add.l d0,sp
cl -(sp)
-#ifdef FLTRAP
bra flnim
#else
+9:
+ checkfsize
+4:
+ jsr .cmf4
+ lea 8(sp),sp
+ mov d0,-(sp)
+ jmp (a4)
+8:
+ jsr .cmf8
+ lea 16(sp),sp
+ mov d0,-(sp)
jmp (a4)
#endif
cmf_l: adroff ; move.w (a5),d0 ; bra 9b
3: move.l d1,-(sp)
move.l d1,-(sp) ; add.l #1280,(sp)
bsr _Xbreak ; testen (sp)+
-4: beq 1f ; bsr e_heap ; jmp (a4)
+4: beq 1f ; testen (sp)+ ; bsr e_heap ;
+ move.l (sp)+,d1 ; jmp (a4)
1: move.l (sp)+,d1 ; bra 5b
!----------------------------------------------------------------------------
e_badlin: mov #0x1A,-(sp) ; bra error
e_badgto: mov #0x1B,-(sp) ; bra error
-flnim: mov #0xB,-(sp) ; bra error
-no8bar: mov #0xC,-(sp) ; bra error
+flnim: bra e_illins
+no8bar: bra e_oddz
!---------------------------------------------------------------------------
! ERRORS AND TRAPS
!----------------------------------------------------------------------------
public / ack.git / commitdiff