Move to Big Endian Binaries

9 files changed, 59 insertions, 70 deletions

diff --git a/LICENSE b/LICENSE
index 10f0753..10f0753 100644..100755
--- a/LICENSE
+++ b/LICENSE
diff --git a/README.md b/README.md
index 370e3e6..d7b8757 100644..100755
--- a/README.md
+++ b/README.md
@@ -66,5 +66,5 @@ manually created, eventually this will change.
 |14     |Not Implemented Yet|
 |15     |Not Implemented Yet|
 |16     |Not Implemented Yet|
-|17     |Exit with Status Code in $0|
+|17     |Exit with Status Code in $a0|
 
diff --git a/binwrite.c b/binwrite.c
deleted file mode 100644
index e70edbc..0000000
--- a/binwrite.c
+++ /dev/null
@@ -1,21 +0,0 @@
-#include <stdio.h>
-#include <stdint.h>
-
-int main(void) {
-	uint32_t insts[] = {
-		0x2008000a,			// addi $t0, $zero, 10
-		0x2009000b,			// addi $t1, $zero, 11
-		0x01285020,			// add  $t2, $t1, $t0
-		0x20020001,			// addi $v0, $zero, 1
-		0x000a2020,			// add $a0, $zero, $t2
-		0x0000000C,			// syscall
-		0x2002000a,			// addi $v0, $zero, 10
-		0x0000000C,			// syscall
-	};
-	FILE *fp = fopen("test.bin", "w");
-	for (size_t i = 0; i < sizeof(insts) / sizeof(insts[0]); i++) {
-		fwrite(insts + i, 1, 4, fp);
-	}
-	fclose(fp);
-	return 0;
-}
diff --git a/makefile b/makefile
index e5c8228..d8e53c5 100644..100755
--- a/makefile
+++ b/makefile
@@ -1,13 +1,15 @@
 CC=gcc
 CFLAGS=-Wall -Werror -pedantic --std=c17
-OBJS=mips.o
-TARGET=mips
+OBJS=qdme.o
+TARGET=qdme
 
-%.o: %.c
-	$(CC) $(CFLAGS) -c $@ $^
+%.o: %.c %.h
+	$(CC) $(CFLAGS) -c $@ $<
 
 all: $(TARGET)
 
 mips: $(OBJS)
 	$(CC) $(CFLAGS) -o $@ $^
 
+clean:
+	rm -rf $(TARGET)
diff --git a/mips b/mips
deleted file mode 100755
index 3a7a0a9..0000000
--- a/mips
+++ /dev/null
diff --git a/mips.o b/mips.o
deleted file mode 100644
index 1a23fe9..0000000
--- a/mips.o
+++ /dev/null
diff --git a/mips.c b/qdme.c
index dcda5f7..c957609 100644..100755
--- a/mips.c
+++ b/qdme.c
@@ -1,51 +1,8 @@
 #include <stdio.h>
 #include <stdlib.h>
-#include <stdint.h>
 #include <string.h>
 #include <arpa/inet.h>
-
-#define MEM_SIZE	36
-#define RA			31
-#define V0			2
-#define V1			3
-#define A0			4
-#define A1			5
-#define A2			6
-#define A3			7
-#define WORD_SIZE	4
-
-typedef struct {
-	unsigned int op: 6;
-	unsigned int rs: 5;
-	unsigned int rt: 5;
-	unsigned int rd: 5;
-	unsigned int shamt: 5;
-	unsigned int func: 6;
-} rtype_t;
-
-typedef struct {
-	unsigned int op: 6;
-	unsigned int rs: 5;
-	unsigned int rt: 5;
-	unsigned int imm: 16;
-} itype_t;
-
-typedef struct {
-	unsigned int op: 6;
-	unsigned int addr: 26;
-} jtype_t;
-
-typedef enum { NOP, RTYPE, ITYPE, JTYPE } type_t;
-
-typedef struct {
-	type_t type;
-	union {
-		uint32_t value;
-		rtype_t r;
-		jtype_t j;
-		itype_t i;
-	};
-} inst_t;
+#include "qdme.h"
 
 uint8_t memory[MEM_SIZE] = {0};
 uint32_t pc = 0, hi = 0, lo = 0;
@@ -56,6 +13,7 @@ uint32_t regFile[32] = {0};
 void InstFetch(inst_t *inst) {
 	uint32_t value = 0;
 	memcpy(&value, memory + pc, WORD_SIZE);
+	value = ntohl(value);
 	switch ((value & 0xFC000000) >> 24) {
 		case 0:
 			inst->type = RTYPE;
diff --git a/qdme.h b/qdme.h
new file mode 100644
index 0000000..50652f0
--- /dev/null
+++ b/qdme.h
@@ -0,0 +1,50 @@
+#ifndef _QDME_H
+#define _QDME_H
+
+#include <stdint.h>
+
+#define MEM_SIZE		36
+#define RA				31
+#define V0				2
+#define V1				3
+#define A0				4
+#define A1				5
+#define A2				6
+#define A3				7
+#define WORD_SIZE		4
+
+typedef struct {
+	unsigned int op: 6;
+	unsigned int rs: 5;
+	unsigned int rt: 5;
+	unsigned int rd: 5;
+	unsigned int shamt: 5;
+	unsigned int func: 6;
+} rtype_t;
+
+typedef struct {
+	unsigned int op: 6;
+	unsigned int rs: 5;
+	unsigned int rt: 5;
+	unsigned int imm: 16;
+} itype_t;
+
+typedef struct {
+	unsigned int op: 6;
+	unsigned int addr: 26;
+} jtype_t;
+
+typedef enum { NOP, RTYPE, ITYPE, JTYPE } type_t;
+
+typedef struct {
+	type_t type;
+	union {
+		rtype_t r;
+		jtype_t j;
+		itype_t i;
+		uint32_t value;
+	};
+} inst_t;
+
+#endif
+
diff --git a/test.bin b/test.bin
index cb24090..2cf7b8d 100644..100755
--- a/test.bin
+++ b/test.bin