+ artimetric blocks

Makefile

@@ -18,6 +18,7 @@ endif
 
 CFLAGS   += -Wall -Wextra -Wpedantic
 CPPFLAGS += -Ilibrary/tommyds
+LDFLAGS  += -lm
 
 OUT := eaxhla
 

debug/artimetrics.eax

@@ -0,0 +1,6 @@
+procedure test
+    u8 a = [8 + 8]
+    u8 b = [2 ^ 8]
+    u8 c = [2 ^ 8 + [2 * 3]]
+begin
+end procedure

source/eaxhla.l

@@ -24,10 +24,7 @@ uhex       [0123456789ABCDEF]
 %x IN_COMMENT IN_MULTILINE_COMMENT
 %x IN_STRING
 %x IN_END
-
-    // XXX: ?!
-%x IN_DECLARE
-%x IN_UGH
+%x IN_ARTIMETRIC_BLOCK
 
 %option nodefault
 %option yylineno
@@ -50,16 +47,6 @@ exit{wsnl}+                { return EXIT;  }
 
 end { BEGIN IN_END; }
 
-<IN_END>{
-program        { BEGIN INITIAL; return END_PROGRAM; }
-procedure      { BEGIN INITIAL; return END_PROCEDURE; }
-loop           { BEGIN INITIAL; return END_LOOP; }
-if             { BEGIN INITIAL; return END_IF; }
-machine        { BEGIN INITIAL; return END_MACHINE; }
-{wsnl}         { ; }
-.              { yyerror(); }
-}
-
 fast{wsnl}+    { return FAST; }
 unix{wsnl}+    { return UNIX; }
 
@@ -103,28 +90,30 @@ u16{wsnl}+ { return U16; }
 u32{wsnl}+ { return U32; }
 u64{wsnl}+ { return U64; }
 
--?[[:digit:]]+  {
-                    yylval.intval = strtol(yytext, NULL, 10);
-                    return LITERAL;
-}
-
-0b[01]+             {
-                        yylval.intval = strtol(yytext, NULL, 2);
-                        return LITERAL;
-                    }
-
-0x{hex}+  {
-              yylval.intval = strtol(yytext + 2, NULL, 16);
-              return LITERAL;
-          }
-
-0x{uhex}+ {
-              yylval.intval = strtol(yytext + 2, NULL, 16);
-              return LITERAL;
-          }
-
 \"  { BEGIN IN_STRING; }
 
+xor{wsnl}+     { return TXOR; }
+inc{wsnl}+     { return TINC; }
+
+fastcall{wsnl}+ { return FASTCALL; }
+
+\/\/    { BEGIN IN_COMMENT; }
+\/\*    { BEGIN IN_MULTILINE_COMMENT; }
+
+\[      { return '['; }
+\]      { return ']'; }
+\+|\-|\*|\/|\%|\^ { return yytext[0]; }
+
+<IN_END>{
+program        { BEGIN INITIAL; return END_PROGRAM; }
+procedure      { BEGIN INITIAL; return END_PROCEDURE; }
+loop           { BEGIN INITIAL; return END_LOOP; }
+if             { BEGIN INITIAL; return END_IF; }
+machine        { BEGIN INITIAL; return END_MACHINE; }
+{wsnl}         { ; }
+.              { yyerror(); }
+}
+
 <IN_STRING>{
     /* XXX: escapes */
 \"  {
@@ -144,14 +133,6 @@ u64{wsnl}+ { return U64; }
     }
 }
 
-xor{wsnl}+     { return TXOR; }
-inc{wsnl}+     { return TINC; }
-
-fastcall{wsnl}+ { return FASTCALL; }
-
-\/\/    { BEGIN IN_COMMENT; }
-\/\*    { BEGIN IN_MULTILINE_COMMENT; }
-
 <IN_COMMENT>{
 \n      { BEGIN INITIAL; }
 .*      { ; }
@@ -162,12 +143,26 @@ fastcall{wsnl}+ { return FASTCALL; }
 .|\n    { ; }
 }
 
-\[      { BEGIN IN_UGH; }
+<INITIAL,IN_ARTIMETRIC_BLOCK>{
+-?[[:digit:]]+  {
+                    yylval.intval = strtol(yytext, NULL, 10);
+                    return LITERAL;
+}
 
-<IN_UGH>{
-\]      { BEGIN INITIAL; yylval.strval = strdup(yytext); return IDENTIFIER; }
-    /* XXX! */
-.|\n    { ; }
+0b[01]+   {
+              yylval.intval = strtol(yytext, NULL, 2);
+              return LITERAL;
+          }
+
+0x{hex}+  {
+              yylval.intval = strtol(yytext + 2, NULL, 16);
+              return LITERAL;
+          }
+
+0x{uhex}+ {
+              yylval.intval = strtol(yytext + 2, NULL, 16);
+              return LITERAL;
+          }
 }
 
 {identifier} { yylval.strval = strdup(yytext); return IDENTIFIER; }
@@ -176,14 +171,6 @@ fastcall{wsnl}+ { return FASTCALL; }
 
 %%
 
-void set_state(int state) {
-    switch (state) {
-        case STATE_DECLARE: {
-            BEGIN IN_DECLARE;
-        } break;
-    }
-}
-
 void yyfree_leftovers(void) {
     if (yyin) {
         fclose(yyin);

source/eaxhla.y

@@ -20,6 +20,7 @@
 
 %{
     #include <stdio.h>
+    #include <math.h>
 
     #include "eaxhla.yy.h"
     #include "assembler.h"
@@ -31,8 +32,6 @@
         yyfree_leftovers();
     }
 
-    extern void set_state(int state);
-
     long new_static(int size) {
         (void)size;
         return 0;
@@ -63,6 +62,8 @@
 
 %token<strval> IDENTIFIER
 
+%type<intval>  immediate
+%type<intval>  artimetric_block artimetric_expression artimetric_operand
 %token<intval> LITERAL
 %token<strval> STRING_LITERAL
 
@@ -123,7 +124,7 @@ declaration_section: %empty
     ;
 
 declaration: origin type IDENTIFIER { $2.name = $3; /* add_var($1); */ free($3); }
-    | origin type IDENTIFIER '=' LITERAL { $2.name = $3; /* add_var($1); */ free($3); }
+    | origin type IDENTIFIER '=' immediate { $2.name = $3; /* add_var($1); */ free($3); }
     | origin type IDENTIFIER '=' STRING_LITERAL { $2.name = $3; /* add_var($1); */ free($3); free($5); }
     ;
 
@@ -231,6 +232,24 @@ register: RAX    { $$ = R0;    }
     ;
 
 immediate: LITERAL
+    | artimetric_block
+    ;
+
+artimetric_block: '[' artimetric_expression ']' { $$ = $2; }
+    ;
+
+artimetric_expression: %empty { yyerror(); }
+    | artimetric_operand
+    | artimetric_expression '+' artimetric_operand { $$ = $1 + $3; }
+    | artimetric_expression '-' artimetric_operand { $$ = $1 - $3; }
+    | artimetric_expression '*' artimetric_operand { $$ = $1 * $3; }
+    | artimetric_expression '/' artimetric_operand { $$ = $1 / $3; }
+    | artimetric_expression '%' artimetric_operand { $$ = $1 % $3; }
+    | artimetric_expression '^' artimetric_operand { $$ = pow($1, $3); }
+    ;
+
+artimetric_operand: immediate
+    | IDENTIFIER { $$ = 0; /*XXX*/ }
     ;
 
 exit: EXIT immediate