Merge pull request 'i1-console-output' (#8) from i1-console-output into main

Reviewed-on: #8

Include/Iony/Core/Console.h

@@ -0,0 +1,29 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * -----------------------------------------------------------------------------
+ * File: Console.h
+ * Description:
+ *  This file contains the functions for reading and writting to the console.
+ * 
+ * Author: Mineplay
+ * -----------------------------------------------------------------------------
+ */
+#ifndef IONY_CONSOLE
+#define IONY_CONSOLE
+
+#include "../Utils/Error.h"
+
+IonyError iony_print(const char *text, long length);
+
+#endif

Include/Iony/Utils/Error.h

@@ -0,0 +1,32 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * -----------------------------------------------------------------------------
+ * File: Error.h
+ * Description:
+ *  This file contains the ErrorCode enum that defines the error codes for the 
+ *  library.
+ * 
+ * Author: Mineplay
+ * -----------------------------------------------------------------------------
+ */
+ #ifndef IONY_ERROR
+ #define IONY_ERROR
+ 
+typedef enum {
+    IONY_ERROR_NONE = 0,
+    IONY_ERROR_INVALID_POINTER = 1,
+    IONY_ERROR_SYSTEM_CALL_FAILED = 2
+} IonyError;
+ 
+#endif

Include/Iony/Utils/System.h

@@ -0,0 +1,99 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * -----------------------------------------------------------------------------
+ * File: System.h
+ * Description:
+ *  This file contains specific system helper functions and constants for linux 
+ *  and windows.
+ * 
+ * Author: Mineplay
+ * -----------------------------------------------------------------------------
+ */
+#ifndef IONY_SYSTEM
+#define IONY_SYSTEM
+
+#if defined(__GNUC__)
+#if defined(__x86_64__)
+#define SYS_WRITE 1
+#elif defined(__i386__)
+#define SYS_WRITE 4
+#elif defined(__aarch64__)
+#define SYS_WRITE 64
+#elif defined(__arm__)
+#define SYS_WRITE 4
+#endif
+
+static inline long iony_system_call(long number, long argument1, long argument2, long argument3, long argument4, long argument5, long argument6) {
+    long result = 0;
+    #if defined(__x86_64__)
+    __asm__ volatile(
+        "movq %1, %%rax\n"
+        "movq %2, %%rdi\n"
+        "movq %3, %%rsi\n"
+        "movq %4, %%rdx\n"
+        "movq %5, %%r10\n"
+        "movq %6, %%r8\n"
+        "movq %7, %%r9\n"
+        "syscall\n"
+        "movq %%rax, %0\n"
+        : "=r"(result)
+        : "r"(number), "r"(argument1), "r"(argument2), "r"(argument3), "r"(argument4), "r"(argument5), "r"(argument6)
+        : "rax", "rdi", "rsi", "rdx", "r10", "r8", "r9", "memory"
+    );
+    #elif defined(__i386__)
+    __asm__ volatile(
+        "movl %1, %%eax\n"
+        "movl %2, %%ebx\n"
+        "movl %3, %%ecx\n"
+        "movl %4, %%edx\n"
+        "movl %5, %%esi\n"
+        "movl %6, %%edi\n"
+        "movl %7, %%ebp\n"
+        "int $0x80\n"
+        "movl %%eax, %0\n"
+        : "=r"(result)
+        : "r"(number), "r"(argument1), "r"(argument2), "r"(argument3),"r"(argument4), "r"(argument5), "r"(argument6)
+        : "eax","ebx","ecx","edx","esi","edi","ebp","memory"
+    );
+    #elif defined(__aarch64__)
+    register long x0 asm("x0") = argument1;
+    register long x1 asm("x1") = argument2;
+    register long x2 asm("x2") = argument3;
+    register long x3 asm("x3") = argument4;
+    register long x4 asm("x4") = argument5;
+    register long x5 asm("x5") = argument6;
+    register long x8 asm("x8") = number;
+
+    __asm__ volatile("svc 0" : "+r"(x0) : "r"(x1), "r"(x2), "r"(x3), "r"(x4), "r"(x5), "r"(x8) : "memory");
+    result = x0;
+    #elif defined(__arm__)
+    register long r0 asm("r0") = argument1;
+    register long r1 asm("r1") = argument2;
+    register long r2 asm("r2") = argument3;
+    register long r3 asm("r3") = argument4;
+    register long r4 asm("r4") = argument5;
+    register long r5 asm("r5") = argument6;
+    register long r7 asm("r7") = number;
+
+    __asm__ volatile("swi 0" : "+r"(r0) : "r"(r1), "r"(r2), "r"(r3), "r"(r4), "r"(r5), "r"(r7) : "memory");
+    result = r0;
+    #else
+    #error "Unsupported architecture"
+    #endif
+
+    return result;
+}
+#endif
+
+#endif

Src/Core/Console.c

@@ -0,0 +1,52 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * -----------------------------------------------------------------------------
+ * File: Console.c
+ * Description:
+ *  This file contains the functions for reading and writting to the console.
+ * 
+ * Author: Mineplay
+ * -----------------------------------------------------------------------------
+ */
+#include "../../Include/Iony/Core/Console.h"
+
+#if defined(_WIN32)
+#include <windows.h>
+#elif defined(__GNUC__)
+#include "../../Include/Iony/Utils/System.h"
+#endif
+
+IonyError iony_print(const char *text, const long length) {
+    if (text == 0) {
+        return IONY_ERROR_INVALID_POINTER;
+    }
+
+    #if defined(_WIN32)
+    static HANDLE standard_console_out_handle = 0;
+    if (standard_console_out_handle == 0) {
+        standard_console_out_handle = GetStdHandle(STD_OUTPUT_HANDLE);
+    }
+    
+    DWORD characters_written;
+    if (!WriteFile(standard_console_out_handle, text, length, &characters_written, 0)) {
+        return IONY_ERROR_SYSTEM_CALL_FAILED;
+    }
+    #elif defined(__GNUC__)
+    if (iony_system_call(SYS_WRITE, 1, (long)text, length, 0, 0, 0) < 0) {
+        return IONY_ERROR_SYSTEM_CALL_FAILED;
+    }
+    #endif
+
+    return IONY_ERROR_NONE;
+}

Tests/Main.c

@@ -19,9 +19,13 @@
  * Author: Mineplay
  * -----------------------------------------------------------------------------
  */
-#include <stdio.h>
+#include <Iony/Utils/Error.h>
+#include <Iony/Core/Console.h>
 
 int main(void) {
-    printf("Hello, World!\n");
+    if (iony_print("Hello, World!\n", 15) != IONY_ERROR_NONE) {
+        return -1;
+    }
+
     return 0;
 }