most of JHostIO / m_Do_hostIO done (#2288)

src/JSystem/JHostIO/JHIMemBuf.cpp

@@ -0,0 +1,69 @@
+#include "JSystem/JHostIO/JHICommonMem.h"
+#include "JSystem/JKernel/JKRHeap.h"
+#include <dolphin.h>
+
+int JHIMemBuf::create() {
+    int rt = 1;
+    if (mp_buffer == NULL) {
+        mp_buffer = new (32) u8[0x20000];
+
+        if (mp_buffer == NULL) {
+            rt = 0;
+            OS_REPORT("ERROR: hioSync Alloc Mem NG!\n");
+        } else {
+            OS_REPORT("INFO: hioSync Alloc Mem OK! %08x\n", mp_buffer);
+        }
+    }
+
+    return rt;
+}
+
+int JHIMemBuf::open() {
+    return 1;
+}
+
+void JHIMemBuf::close() {
+    if (mp_buffer != NULL) {
+        delete[] mp_buffer;
+    }
+}
+
+JHIMemBuf::~JHIMemBuf() {
+    close();
+}
+
+u8* JHIMemBuf::getPointer() const {
+    return mp_buffer;
+}
+
+u32 JHIMemBuf::readIO(u32 position) const {
+    u32 data;
+    readIO(position, &data);
+    return data;
+}
+
+void JHIMemBuf::readIO(u32 position, u32* out_data) const {
+    u8* read_ptr = getPointer() + position;
+    *out_data = (read_ptr[0] << 0x18) |
+                (read_ptr[1] << 0x10) |
+                (read_ptr[2] << 0x08) |
+                (read_ptr[3] << 0x00);
+}
+
+void JHIMemBuf::writeIO(u32 position, u8* src_data, u32 length) const {
+    u8* write_ptr = getPointer() + position;
+
+    while (--length != 0) {
+        *write_ptr = *src_data++;
+        write_ptr++;
+    }
+}
+
+void JHIMemBuf::writeIO(u32 position, u32 data) const {
+    u8* write_ptr = getPointer() + position;
+
+    *write_ptr++ = data >> 0x18;
+    *write_ptr++ = data >> 0x10;
+    *write_ptr++ = data >> 0x08;
+    *write_ptr++ = data >> 0x00;
+}