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Add support for the xor operator.

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This commit is contained in:
David Given 2016-12-31 17:36:12 +00:00
parent c3e1ef1064
commit 803b81e3f4
3 changed files with 27 additions and 11 deletions
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10
lang/b/compiler/b.h
View file

@ -120,6 +120,7 @@ char* manglename(char* name, char prefix);
#define LESS 42
#define GREATEQ 43
#define GREAT 44
#define EOR 45
#define ASSIGN 49
#define ASPLUS 50
@ -137,11 +138,12 @@ char* manglename(char* name, char prefix);
#define ASLESS 62
#define ASGTQ 63
#define ASGREAT 64
#define ASEOR 65
#define CON 65
#define STRING 66
#define NAME 67
#define KEYW 68
#define CON 70
#define STRING 71
#define NAME 72
#define KEYW 73
#define SQUOTE 121
#define DQUOTE 122

22
lang/b/compiler/b0.c
View file

@ -393,7 +393,7 @@ loop:
if (ctab[peekc = spnextchar()] == LETTER)
return ASSIGN;
c = symbol();
if (PLUS <= c && c <= GREAT)
if (PLUS <= c && c <= EOR)
return c + ASPLUS-PLUS;
if (c == ASSIGN)
return EQUAL;
@ -1236,7 +1236,7 @@ int opdope[] = {
024005, /* < */
024005, /* >= */
024005, /* > */
000000, /* 45 */
017005, /* ^ */
000000, /* 46 */
000000, /* 47 */
000000, /* 48 */
@ -1256,6 +1256,11 @@ int opdope[] = {
012213, /* =< */
012213, /* =>= */
012213, /* => */
012213, /* =^ */
000000, /* 66 */
000000, /* 67 */
000000, /* 68 */
000000, /* 69 */
000000, /* CON */
000000, /* STRING */
000000 /* NAME */
@ -1273,7 +1278,7 @@ 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, LBRACK, UNKN, RBRACK, UNKN, LETTER,
LETTER, LETTER, LETTER, LBRACK, UNKN, RBRACK, EOR, LETTER,
UNKN, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
@ -1294,6 +1299,7 @@ void printtoken(int tok, FILE *out)
strtab[7] = "RPARN";
strtab[8] = "COLON";
strtab[9] = "COMMA";
strtab[10] = "HASH";
strtab[15] = "MCALL";
strtab[16] = "CALL";
@ -1322,6 +1328,7 @@ void printtoken(int tok, FILE *out)
strtab[42] = "LESS";
strtab[43] = "GREATEQ";
strtab[44] = "GREAT";
strtab[45] = "EOR";
strtab[49] = "ASSIGN";
strtab[50] = "ASPLUS";
@ -1339,11 +1346,12 @@ void printtoken(int tok, FILE *out)
strtab[62] = "ASLESS";
strtab[63] = "ASGTQ";
strtab[64] = "ASGREAT";
strtab[65] = "ASEOR";
strtab[65] = "CON";
strtab[66] = "STRING";
strtab[67] = "NAME";
strtab[68] = "KEYW";
strtab[70] = "CON";
strtab[71] = "STRING";
strtab[72] = "NAME";
strtab[73] = "KEYW";
strtab[127] = "UNKN";

6
lang/b/compiler/b1.c
View file

@ -142,6 +142,7 @@ lvalexp(struct tnode *tr)
case ASLESS:
case ASGTQ:
case ASGREAT:
case ASEOR:
tr->op -= ASPLUS-PLUS;
rcexpr(block(ASSIGN,0,tr->tr1,tr));
return;
@ -249,6 +250,11 @@ rcexpr(struct tnode *tr)
C_ior(wordsize);
return;
case EOR:
binary(tr);
C_xor(wordsize);
return;
case LSHIFT:
binary(tr);
C_sli(wordsize);