File input and output routines away

1 files changed, 0 insertions, 200 deletions

diff --git a/output.c b/output.c
deleted file mode 100644
index d536b7e..0000000
--- a/output.c
+++ /dev/null
@@ -1,200 +0,0 @@
-#include <stdio.h>
-#include <stdint.h>
-#include <string.h>
-
-#include "parse.h"
-
-static size_t cur_byte;
-
-int generate_single_r_type(uint32_t *dest, struct r_type inst)
-{
-	uint32_t i = 0;
-
-	i |= MASK_INST_RTYPE;
-	i |= MASK_OPER(inst.oper);
-	i |= MASK_REG_DEST(inst.dest);
-	i |= MASK_REG_LEFT(inst.left);
-	i |= MASK_REG_RIGHT(inst.right);
-
-	*dest = i;
-	return 1;
-}
-int generate_single_ni_type(uint32_t *dest, struct i_type inst)
-{
-	uint32_t i = 0;
-
-	i |= MASK_INST_NITYPE;
-	i |= MASK_OPER(inst.oper);
-	i |= MASK_REG_DEST(inst.dest);
-	i |= MASK_REG_LEFT(inst.left);
-	i |= MASK_NI_IMM(inst.imm.value);
-
-	*dest = i;
-	return 1;
-}
-
-int generate_single_wi_type(uint32_t *dest, struct i_type inst)
-{
-	uint32_t i = 0;
-
-	i |= MASK_INST_WITYPE;
-	i |= MASK_OPER(inst.oper);
-	i |= MASK_REG_DEST(inst.dest);
-	i |= MASK_REG_LEFT(inst.left);
-
-	/* two-word instruction - make room for the immediate */
-	i <<= 16;
-
-	i |= inst.imm.value;
-
-	*dest = i;
-	return 2;
-}
-
-int generate_single_ji_type(uint32_t *dest, struct ji_type inst)
-{
-	uint32_t i = 0;
-
-	i |= MASK_INST_JTYPE;
-	i |= MASK_IS_JUMP;
-	i |= MASK_JB_COND(inst.cond);
-	i |= MASK_JI;
-
-	/* two-word instruction - make room for the immediate */
-	i <<= 16;
-
-	i |= inst.imm.value;
-
-	*dest = i;
-	return 2;
-}
-
-int generate_single_jr_type(uint32_t *dest, struct jr_type inst)
-{
-	uint32_t i = 0;
-
-	i |= MASK_INST_JTYPE;
-	i |= MASK_IS_JUMP;
-	i |= MASK_JB_COND(inst.cond);
-	i |= MASK_JR;
-	i |= MASK_JUMP_REGISTER(inst.reg);
-
-	*dest = i;
-	return 1;
-}
-
-int generate_single_b_type(uint32_t *dest, struct b_type inst)
-{
-	uint32_t i = 0;
-
-	i |= MASK_INST_JTYPE;
-	i |= MASK_IS_BRANCH;
-	i |= MASK_JB_COND(inst.cond);
-	i |= MASK_B_OFFSET(inst.imm.value);
-
-	*dest = i;
-	return 1;
-}
-
-
-int look_up_label(struct label *labels, size_t labels_count, uint16_t *val, const char *label)
-{
-	size_t i = 0;
-
-	for (i = 0; i < labels_count; i++) {
-		if (strcmp(labels[i].name, label) == 0) {
-			*val = labels[i].byte_offset;
-			return 0;
-		}
-	}
-
-	/* FIXME emit */
-	fprintf(stderr, "Reference to undefined label `%s'\n", label);
-	return 1;
-}
-
-int output_single(FILE *f, struct label *labels, size_t labels_count, struct instruction inst)
-{
-	int len = 0;
-	uint32_t i = 0;
-
-	switch (inst.type) {
-		case INST_TYPE_R:
-			len = generate_single_r_type(&i, inst.inst.r);
-			break;
-		case INST_TYPE_NI:
-			if (   inst.inst.i.imm_is_ident
-			    && look_up_label(labels, labels_count, &inst.inst.i.imm.value, inst.inst.i.imm.label))
-				return 1;
-
-			len = generate_single_ni_type(&i, inst.inst.i);
-			break;
-		case INST_TYPE_WI:
-			if (   inst.inst.i.imm_is_ident
-			    && look_up_label(labels, labels_count, &inst.inst.i.imm.value, inst.inst.i.imm.label))
-				return 1;
-
-			len = generate_single_wi_type(&i, inst.inst.i);
-			break;
-		case INST_TYPE_JR:
-			len = generate_single_jr_type(&i, inst.inst.jr);
-			break;
-		case INST_TYPE_JI:
-			if (   inst.inst.ji.imm_is_ident
-			    && look_up_label(labels, labels_count, &inst.inst.ji.imm.value, inst.inst.ji.imm.label))
-				return 1;
-
-			len = generate_single_ji_type(&i, inst.inst.ji);
-			break;
-		case INST_TYPE_B:
-			if (   inst.inst.b.imm_is_ident
-			    && look_up_label(labels, labels_count, &inst.inst.b.imm.value, inst.inst.b.imm.label))
-				return 1;
-			inst.inst.b.imm.value -= cur_byte;
-			if (inst.inst.b.imm.value % 2 != 0) {
-				fprintf(stderr, "Internal error: branch offset %d not a multiple of 2\n", inst.inst.b.imm.value);
-			}
-			inst.inst.b.imm.value /= 2;
-
-			len = generate_single_b_type(&i, inst.inst.b);
-			break;
-		default:
-			fprintf(stderr, "Internal error: unhandled instruction type\n");
-			break;
-	}
-
-	if (len == 2) {
-#define RAW
-#ifdef RAW
-		fputc(0xFF & (i >> 24), f);
-		fputc(0xFF & (i >> 16), f);
-#else
-		fprintf(f, "%04x ", i >> 16);
-#endif
-	}
-#ifdef RAW
-	fputc(0xFF & (i >> 8), f);
-	fputc(0xFF & (i >> 0), f);
-#else
-	fprintf(f, "%04x ", 0xFFFF & i);
-#endif
-
-	cur_byte += 2 * len;
-	return 0;
-}
-
-int output(FILE *fout, struct label *labels, size_t label_count, struct instruction *insts, size_t insts_count)
-{
-	size_t i = 0;
-	cur_byte = 0;
-
-#ifndef RAW
-	fprintf(fout, "v2.0 raw\n");
-#endif
-
-	for (i = 0; i < insts_count; i++)
-		if (output_single(fout, labels, label_count, insts[i]))
-			return 1;
-
-	return 0;
-}