mirror of
https://github.com/byteworksinc/ORCALib.git
synced 2024-11-19 08:31:26 +00:00
379f2f93ad
This affects code where multiple structs or unions are assigned by successive = operators in one expression, e.g. "s1=s2=s3". The middle struct assignment(s) would use the ~Move2 or ~LongMove2 helper functions (for <64k or >=64k moves, respectively). These functions are supposed to leave the destination pointer on the stack so it can be used as the source of a subsequent move, but they both had bugs where they could modify dest and leave that modified value on the stack, which would cause subsequent moves to use the wrong source location. In the case of ~Move2, this only happened if the size was odd.
Here is a program that demonstrated the problems with both functions:
#pragma memorymodel 1
#include <stdio.h>
struct S1 {
char s[80000];
} a,b,c;
int main(void) {
struct S2 {
int x,y;
char z;
} d,e,f;
c.s[66000] = 123;
f.y = 5678;
a = b = c;
d = e = f;
printf("%i %i %i\n", a.s[66000], b.s[66000], c.s[66000]);
printf("%i %i %i\n", d.y, e.y, f.y);
}
546 lines
6.5 KiB
Plaintext
546 lines
6.5 KiB
Plaintext
MACRO
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&lab error &e
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&lab ph2 &e
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jsl SystemError
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mend
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MACRO
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&LAB MOVE4 &F,&T
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&LAB ~SETM
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LDA 2+&F
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STA 2+&T
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LDA &F
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STA &T
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~RESTM
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MEND
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MACRO
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&LAB PUTS &N1,&F1,&CR,&ERROUT
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&LAB ~SETM
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LCLC &C
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&C AMID "&N1",1,1
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AIF "&C"<>"#",.C
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AIF L:&N1>127,.A
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BRA ~&SYSCNT
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AGO .B
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.A
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BRL ~&SYSCNT
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.B
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&N1 AMID "&N1",2,L:&N1-1
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~L&SYSCNT DC I1"L:~S&SYSCNT"
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~S&SYSCNT DC C&N1
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~&SYSCNT ANOP
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&N1 SETC ~L&SYSCNT-1
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.C
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~PUSHA &N1
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AIF C:&F1,.C1
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PEA 0
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AGO .C2
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.C1
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PH2 &F1
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.C2
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PH2 #C:&CR
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PH2 #C:&ERROUT
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JSL ~PUTS
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~RESTM
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MEND
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MACRO
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&LAB ~PUSHA &N1
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LCLC &C
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&LAB ANOP
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&C AMID &N1,1,1
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AIF "&C"<>"{",.B
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&C AMID &N1,L:&N1,1
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AIF "&C"<>"}",.G
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&N1 AMID &N1,2,L:&N1-2
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SEP #$20
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LONGA OFF
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LDA #0
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PHA
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REP #$20
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LONGA ON
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PHK
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LDA &N1
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PHA
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MEXIT
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.B
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AIF "&C"<>"[",.C
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&N1 AMID &N1,2,L:&N1-2
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LDA &N1+2
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PHA
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LDA &N1
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PHA
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MEXIT
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.C
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PEA +(&N1)|-16
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PEA &N1
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MEXIT
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.G
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MNOTE "Missing closing '}'",16
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MEND
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MACRO
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&LAB ~SETM
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&LAB ANOP
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AIF C:&~LA,.B
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GBLB &~LA
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GBLB &~LI
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.B
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&~LA SETB S:LONGA
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&~LI SETB S:LONGI
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AIF S:LONGA.AND.S:LONGI,.A
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REP #32*(.NOT.&~LA)+16*(.NOT.&~LI)
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LONGA ON
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LONGI ON
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.A
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MEND
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MACRO
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&LAB ~RESTM
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&LAB ANOP
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AIF (&~LA+&~LI)=2,.I
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SEP #32*(.NOT.&~LA)+16*(.NOT.&~LI)
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AIF &~LA,.H
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LONGA OFF
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.H
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AIF &~LI,.I
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LONGI OFF
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.I
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MEND
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MACRO
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&LAB ADD4 &M1,&M2,&M3
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LCLB &YISTWO
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LCLC &C
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&LAB ~SETM
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AIF C:&M3,.A
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&C AMID "&M2",1,1
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AIF "&C"<>"#",.A
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&C AMID "&M1",1,1
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AIF "&C"="{",.A
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AIF "&C"="[",.A
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&C AMID "&M2",2,L:&M2-1
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AIF &C>=65536,.A
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CLC
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~LDA &M1
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~OP ADC,&M2
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~STA &M1
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BCC ~&SYSCNT
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~OP.H INC,&M1
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~&SYSCNT ANOP
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AGO .C
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.A
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AIF C:&M3,.B
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LCLC &M3
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&M3 SETC &M1
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.B
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CLC
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~LDA &M1
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~OP ADC,&M2
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~STA &M3
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~LDA.H &M1
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~OP.H ADC,&M2
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~STA.H &M3
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.C
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~RESTM
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MEND
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MACRO
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&LAB ~OP.H &OPC,&OP
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&LAB ANOP
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LCLC &C
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&C AMID "&OP",1,1
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AIF "&C"="[",.B
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AIF "&C"<>"{",.D
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&C AMID "&OP",L:&OP,1
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AIF "&C"="}",.A
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MNOTE "Missing closing '}'",2
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&OP SETC &OP}
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.A
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&OP AMID "&OP",2,L:&OP-2
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&OP SETC (&OP)
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.B
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AIF &YISTWO,.C
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&YISTWO SETB 1
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LDY #2
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&OP SETC "&OP,Y"
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.C
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&OPC &OP
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MEXIT
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.D
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AIF "&C"<>"#",.E
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&OP AMID "&OP",2,L:&OP-1
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&OP SETC "#^&OP"
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&OPC &OP
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MEXIT
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.E
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&OPC 2+&OP
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MEND
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MACRO
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&LAB ~LDA.H &OP
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&LAB ANOP
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LCLC &C
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&C AMID "&OP",1,1
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AIF "&C"="[",.B
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AIF "&C"<>"{",.D
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&C AMID "&OP",L:&OP,1
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AIF "&C"="}",.A
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MNOTE "Missing closing '}'",2
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&OP SETC &OP}
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.A
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&OP AMID "&OP",2,L:&OP-2
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&OP SETC (&OP)
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.B
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AIF &YISTWO,.C
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&YISTWO SETB 1
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LDY #2
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&OP SETC "&OP,Y"
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.C
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LDA &OP
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MEXIT
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.D
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AIF "&C"<>"#",.E
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&OP AMID "&OP",2,L:&OP-1
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&OP SETC "#^&OP"
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LDA &OP
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MEXIT
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.E
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LDA 2+&OP
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MEND
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MACRO
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&LAB ~STA.H &OP
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&LAB ANOP
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LCLC &C
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&C AMID "&OP",1,1
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AIF "&C"="[",.B
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AIF "&C"<>"{",.D
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&C AMID "&OP",L:&OP,1
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AIF "&C"="}",.A
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MNOTE "Missing closing '}'",2
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&OP SETC &OP}
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.A
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&OP AMID "&OP",2,L:&OP-2
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&OP SETC (&OP)
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.B
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AIF &YISTWO,.C
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&YISTWO SETB 1
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LDY #2
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&OP SETC "&OP,Y"
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.C
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STA &OP
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MEXIT
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.D
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STA 2+&OP
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MEND
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MACRO
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&LAB ~LDA &OP
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LCLC &C
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&C AMID "&OP",1,1
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AIF "&C"<>"{",.B
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&C AMID "&OP",L:&OP,1
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AIF "&C"="}",.A
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MNOTE "Missing closing '}'",2
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&OP SETC &OP}
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.A
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&OP AMID "&OP",2,L:&OP-2
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&OP SETC (&OP)
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.B
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&LAB LDA &OP
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MEND
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MACRO
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&LAB ~STA &OP
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LCLC &C
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&C AMID "&OP",1,1
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AIF "&C"<>"{",.B
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&C AMID "&OP",L:&OP,1
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AIF "&C"="}",.A
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MNOTE "Missing closing '}'",2
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&OP SETC &OP}
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.A
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&OP AMID "&OP",2,L:&OP-2
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&OP SETC (&OP)
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.B
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&LAB STA &OP
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MEND
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MACRO
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&LAB ~OP &OPC,&OP
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LCLC &C
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&C AMID "&OP",1,1
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AIF "&C"<>"{",.B
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&C AMID "&OP",L:&OP,1
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AIF "&C"="}",.A
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MNOTE "Missing closing '}'",2
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&OP SETC &OP}
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.A
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&OP AMID "&OP",2,L:&OP-2
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&OP SETC (&OP)
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.B
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&LAB &OPC &OP
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MEND
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MACRO
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&LAB INC4 &A
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&LAB ~SETM
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INC &A
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BNE ~&SYSCNT
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INC 2+&A
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~&SYSCNT ~RESTM
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MEND
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MACRO
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&LAB LONG &A,&B
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LCLB &I
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LCLB &M
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&A AMID &A,1,1
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&M SETB ("&A"="M").OR.("&A"="m")
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&I SETB ("&A"="I").OR.("&A"="i")
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AIF C:&B=0,.A
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&B AMID &B,1,1
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&M SETB ("&B"="M").OR.("&B"="m").OR.&M
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&I SETB ("&B"="I").OR.("&B"="i").OR.&I
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.A
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&LAB REP #&M*32+&I*16
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AIF .NOT.&M,.B
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LONGA ON
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.B
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AIF .NOT.&I,.C
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LONGI ON
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.C
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MEND
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MACRO
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&LAB PH2 &N1
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LCLC &C
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&LAB ANOP
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&C AMID &N1,1,1
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AIF "&C"="#",.D
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AIF S:LONGA=1,.A
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REP #%00100000
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.A
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AIF "&C"<>"{",.B
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&C AMID &N1,L:&N1,1
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AIF "&C"<>"}",.G
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&N1 AMID &N1,2,L:&N1-2
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LDA (&N1)
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PHA
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AGO .E
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.B
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LDA &N1
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PHA
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AGO .E
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.D
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&N1 AMID &N1,2,L:&N1-1
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PEA &N1
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AGO .F
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.E
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AIF S:LONGA=1,.F
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SEP #%00100000
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.F
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MEXIT
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.G
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MNOTE "Missing closing '}'",16
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MEND
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MACRO
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&LAB PH4 &N1
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LCLC &C
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&LAB ANOP
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&C AMID &N1,1,1
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AIF "&C"="#",.D
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AIF S:LONGA=1,.A
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REP #%00100000
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.A
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AIF "&C"<>"{",.B
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&C AMID &N1,L:&N1,1
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AIF "&C"<>"}",.G
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&N1 AMID &N1,2,L:&N1-2
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LDY #2
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LDA (&N1),Y
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PHA
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LDA (&N1)
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PHA
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AGO .E
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.B
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AIF "&C"<>"[",.C
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LDY #2
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LDA &N1,Y
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PHA
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LDA &N1
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PHA
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AGO .E
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.C
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LDA &N1+2
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PHA
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LDA &N1
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PHA
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AGO .E
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.D
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&N1 AMID &N1,2,L:&N1-1
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PEA +(&N1)|-16
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PEA &N1
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AGO .F
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.E
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AIF S:LONGA=1,.F
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SEP #%00100000
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.F
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MEXIT
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.G
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MNOTE "Missing closing '}'",16
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MEND
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MACRO
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&LAB PL4 &N1
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LCLC &C
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&LAB ANOP
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AIF S:LONGA=1,.A
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REP #%00100000
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.A
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&C AMID &N1,1,1
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AIF "&C"<>"{",.B
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&C AMID &N1,L:&N1,1
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AIF "&C"<>"}",.F
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&N1 AMID &N1,2,L:&N1-2
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PLA
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STA (&N1)
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LDY #2
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PLA
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STA (&N1),Y
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AGO .D
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.B
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AIF "&C"<>"[",.C
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PLA
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STA &N1
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LDY #2
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PLA
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STA &N1,Y
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AGO .D
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.C
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PLA
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STA &N1
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PLA
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STA &N1+2
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.D
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AIF S:LONGA=1,.E
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SEP #%00100000
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.E
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MEXIT
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.F
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MNOTE "Missing closing '}'",16
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MEND
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MACRO
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&LAB SHORT &A,&B
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LCLB &I
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LCLB &M
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&A AMID &A,1,1
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&M SETB ("&A"="M").OR.("&A"="m")
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&I SETB ("&A"="I").OR.("&A"="i")
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AIF C:&B=0,.A
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&B AMID &B,1,1
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&M SETB ("&B"="M").OR.("&B"="m").OR.&M
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&I SETB ("&B"="I").OR.("&B"="i").OR.&I
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.A
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&LAB SEP #&M*32+&I*16
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AIF .NOT.&M,.B
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LONGA OFF
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.B
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AIF .NOT.&I,.C
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LONGI OFF
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.C
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MEND
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MACRO
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&LAB _NEWHANDLE
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&LAB LDX #$0902
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JSL $E10000
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MEND
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MACRO
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&lab csubroutine &parms,&work
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&lab anop
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aif c:&work,.a
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lclc &work
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&work setc 0
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.a
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gbla &totallen
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gbla &worklen
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&worklen seta &work
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&totallen seta 0
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aif c:&parms=0,.e
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lclc &len
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lclc &p
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lcla &i
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&i seta 1
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.b
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&p setc &parms(&i)
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&len amid &p,2,1
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aif "&len"=":",.c
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&len amid &p,1,2
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&p amid &p,4,l:&p-3
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ago .d
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.c
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&len amid &p,1,1
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&p amid &p,3,l:&p-2
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.d
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&p equ &totallen+4+&work
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&totallen seta &totallen+&len
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&i seta &i+1
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aif &i<=c:&parms,^b
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.e
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tsc
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aif &work=0,.f
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sec
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sbc #&work
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tcs
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.f
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phd
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tcd
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mend
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MACRO
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&lab creturn &r
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&lab anop
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lclc &len
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aif c:&r,.a
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lclc &r
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&r setc 0
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&len setc 0
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ago .h
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.a
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&len amid &r,2,1
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aif "&len"=":",.b
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&len amid &r,1,2
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&r amid &r,4,l:&r-3
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ago .c
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.b
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&len amid &r,1,1
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&r amid &r,3,l:&r-2
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.c
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aif &len<>2,.d
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ldy &r
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ago .h
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.d
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aif &len<>4,.e
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ldx &r+2
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ldy &r
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ago .h
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.e
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aif &len<>10,.g
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ldy #&r
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ldx #^&r
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ago .h
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.g
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mnote 'Not a valid return length',16
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mexit
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.h
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aif &totallen=0,.i
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lda &worklen+2
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sta &worklen+&totallen+2
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lda &worklen+1
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sta &worklen+&totallen+1
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.i
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pld
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tsc
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clc
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adc #&worklen+&totallen
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tcs
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aif &len=0,.j
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tya
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.j
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rtl
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mend
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macro
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&l dec4 &a
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&l ~setm
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lda &a
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bne ~&SYSCNT
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dec 2+&a
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~&SYSCNT dec &a
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~restm
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mend
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