From 6db1a2cdd3b96731f2e092d55d8c2136eabc52d0 Mon Sep 17 00:00:00 2001
From: Julian T <julian@jtle.dk>
Date: Tue, 11 Feb 2020 12:24:56 +0100
Subject: Rename and cleanup

---
 sem1/osc/miniproject/cnasm/codegen.c | 132 -----------------------------------
 1 file changed, 132 deletions(-)
 delete mode 100644 sem1/osc/miniproject/cnasm/codegen.c

(limited to 'sem1/osc/miniproject/cnasm/codegen.c')

diff --git a/sem1/osc/miniproject/cnasm/codegen.c b/sem1/osc/miniproject/cnasm/codegen.c
deleted file mode 100644
index c995df9..0000000
--- a/sem1/osc/miniproject/cnasm/codegen.c
+++ /dev/null
@@ -1,132 +0,0 @@
-#include "codegen.h"
-
-#include <stdio.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include "ast.h"
-
-static void gencondjmp(FILE *f, cond_t *c, bool neg) {
-	uint8_t cmp = neg ? c->cmp^0x80 : c->cmp;
-	fprintf(f, "cmp %s %s\n", c->a, c->b);
-	switch(cmp) {
-		case CEQ:
-			fprintf(f, "je ");
-			break;
-		case CNEQ:
-			fprintf(f, "jne ");
-			break;
-		case CGT:
-			fprintf(f, "jg ");
-			break;
-		case CLT:
-			fprintf(f, "jl ");
-			break;
-		case CLEQ:
-			fprintf(f, "jle ");
-			break;
-		case CGEQ:
-			fprintf(f, "jge ");
-			break;
-		default:
-			fprintf(stderr, "Invalid cmp type %x", cmp);
-			fprintf(f, "jmp ");
-	}
-}
-
-static void genif(FILE *f, struct genctx *ctx, ast_node_t *n) {
-	bool doElse = n->flowctrl.iffalse;
-	// Create conditional jump
-	gencondjmp(f, n->flowctrl.condition, true);
-	if( doElse ) {
-		fprintf(f, "else_%d\n", ctx->nested);
-	} else {
-		fprintf(f, "end_%d\n", ctx->nested);
-	}
-
-	struct genctx octx = { ctx->nested+1 };
-	// Paste code
-	gentree(f, &octx, n->flowctrl.iftrue);
-	
-	// Do else
-	if( doElse ) {
-		fprintf(f, "jmp end_%d\n", ctx->nested);
-		fprintf(f, "else_%d:\n", ctx->nested);
-		gentree(f, &octx, n->flowctrl.iffalse);
-	}
-
-	// End block
-	fprintf(f, "end_%d:\n", ctx->nested);
-}
-
-static void genwhile(FILE *f, struct genctx *ctx, ast_node_t *n) {
-	// Create loop label
-	fprintf(f, "loop_%d:\n", ctx->nested);
-
-	// Create conditional jump
-	gencondjmp(f, n->flowctrl.condition, true);
-	fprintf(f, "end_%d\n", ctx->nested);
-
-	struct genctx octx = { ctx->nested+1 };
-	// Paste code
-	gentree(f, &octx, n->flowctrl.iftrue);
-
-	// Jump to start
-	fprintf(f, "jmp loop_%d\n", ctx->nested);
-	
-	// End block
-	fprintf(f, "end_%d:\n", ctx->nested);
-}
-
-static void genfor(FILE *f, struct genctx *ctx, ast_node_t *n) {
-	// Do pre stuff
-	fprintf(f, "%s\n", n->forloop.pre);
-
-	// Create loop label
-	fprintf(f, "loop_%d:\n", ctx->nested);
-
-	// Create conditional jump
-	gencondjmp(f, n->flowctrl.condition, true);
-	fprintf(f, "end_%d\n", ctx->nested);
-
-	struct genctx octx = { ctx->nested+1 };
-	// Paste code
-	gentree(f, &octx, n->forloop.stuff);
-
-	// Do inc stuff
-	fprintf(f, "%s\n", n->forloop.inc);
-	// Jump to start
-	fprintf(f, "jmp loop_%d\n", ctx->nested);
-	
-	// End block
-	fprintf(f, "end_%d:\n", ctx->nested);
-}
-
-void gentree(FILE *f, struct genctx *ctx, ast_node_t *n) {
-	if( !n ) {
-		return;
-	}
-	if( ctx == NULL ) {
-		ctx = malloc(sizeof(struct genctx));
-		ctx->nested = 0;
-	}
-	switch(n->t) {
-		case TSTM_LIST: 
-			gentree(f, ctx, n->list.children[0]);
-			gentree(f, ctx, n->list.children[1]);
-			break;
-		case TIF:
-			genif(f, ctx, n);
-			break;
-		case TIDENT:
-			fprintf(f, "%s\n", n->ident);
-			break;
-		case TFOR:
-			genfor(f, ctx, n);
-			break;
-		case TWHILE:
-			genwhile(f, ctx, n);
-			break;
-		default:
-			return;
-	}
-}
-- 
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