77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
#include "compiler.h"
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#include "parser.h"
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uint32_t demo_add_compile(Value *memory) {
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uint32_t i = 0;
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memory[i++].u = OP(OP_LOADU, 0, 0, 0);
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memory[i++].u = 0;
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memory[i++].u = OP(OP_LOADU, 1, 0, 0);
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memory[i++].u = 5;
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memory[i++].u = OP(OP_LOADU, 2, 0, 0);
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memory[i++].u = 1;
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memory[i++].u = OP(OP_LOADF, 3, 0, 0);
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memory[i++].f = 5.0f;
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memory[i++].u = OP(OP_LOADF, 4, 0, 0);
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memory[i++].f = 5.0f;
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memory[i++].u = OP(OP_LOADU, 5, 0, 0);
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uint32_t jmp = i + 1;
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memory[i++].u = jmp;
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memory[i++].u = OP(OP_ADD_REAL, 4, 4, 3);
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memory[i++].u = OP(OP_SUB_UINT, 1, 1, 2);
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memory[i++].u = OP(OP_JGT_UINT, 5, 1, 0);
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memory[i++].u = OP(OP_REAL_TO_STRING, 6, 4, 0);
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memory[i++].u = OP(OP_REAL_TO_UINT, 1, 4, 4);
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memory[i++].u = OP(OP_UINT_TO_STRING, 7, 1, 0);
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memory[i++].u = OP(OP_READ_STRING, 8, 0, 0);
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memory[i++].u = OP(OP_PRINT_STRING, 0, 6, 0);
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memory[i++].u = OP(OP_PRINT_STRING, 0, 7, 0);
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memory[i++].u = OP(OP_PRINT_STRING, 0, 8, 0);
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memory[i++].u = OP(OP_HALT, 0, 0, 0); /* explicit halt */
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return i;
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}
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uint32_t demo_function_call_compile(Value *memory) {
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uint32_t i = 0;
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memory[i++].u = OP(OP_HALT, 0, 0, 0);
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return i;
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}
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static void letDeclaration() {
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/* uint8_t global = parseVariable("Expect variable name."); */
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/* if (match(TOKEN_EQUAL)) { */
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/* expression(); */
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/* } else { */
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/* emitByte(OP_NIL); */
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/* } */
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/* consume(TOKEN_SEMICOLON, */
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/* "Expect ';' after variable declaration."); */
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/* defineVariable(global); */
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}
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static void declaration(Token t) {
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if (t.type == TOKEN_LET) {
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letDeclaration();
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} else {
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/* statement(); */
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}
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}
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/**
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* Compile.
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*/
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uint32_t compile(Value *memory, char *buffer) {
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uint32_t i = 0;
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initTokenizer(buffer);
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Token t = nextToken();
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while (t.type != TOKEN_EOF) {
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printToken(t);
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declaration(t);
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t = nextToken();
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}
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return i;
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}
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