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Add support for the ~ operator.

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This commit is contained in:
David Given 2017-01-01 17:40:06 +00:00
parent b1576e2c77
commit 374e7a1c57
3 changed files with 10 additions and 2 deletions
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1
lang/b/compiler/b.h
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@ -104,6 +104,7 @@ char* manglename(char* name, char prefix);
#define AMPER 23
#define STAR 24
#define QUEST 25
#define NOT 26
#define PLUS 30
#define MINUS 31

6
lang/b/compiler/b0.c
View file

@ -1060,6 +1060,7 @@ tand:
goto oponst;
case EXCLA:
case NOT:
if (andflg)
goto syntax;
goto oponst;
@ -1225,7 +1226,7 @@ int opdope[] = {
034200, /* &un */
034200, /* *un */
014201, /* ? */
000000, /* 26 */
034200, /* ~un */
000000, /* 27 */
000000, /* 28 */
000000, /* 29 */
@ -1290,7 +1291,7 @@ char ctab[128] = {
UNKN, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
LETTER, LETTER, LETTER, LBRACE, OR, RBRACE, UNKN, UNKN
LETTER, LETTER, LETTER, LBRACE, OR, RBRACE, NOT, UNKN
};
/* debug function */
@ -1320,6 +1321,7 @@ void printtoken(int tok, FILE *out)
strtab[23] = "AMPER";
strtab[24] = "STAR";
strtab[25] = "QUEST";
strtab[26] = "NOT";
strtab[30] = "PLUS";
strtab[31] = "MINUS";

5
lang/b/compiler/b1.c
View file

@ -305,6 +305,11 @@ rcexpr(struct tnode *tr)
C_ngi(wordsize);
return;
case NOT:
rcexpr(tr->tr1);
C_com(wordsize);
return;
case QUEST:
cbranch(tr->tr1, o1=isn++);
rcexpr(tr->tr2->tr1);