From fb0d9a6047365006249f0ae075f8bef834400254 Mon Sep 17 00:00:00 2001
From: Yifei Teng <yifei@skycatch.com>
Date: Mon, 16 Nov 2015 13:18:50 -0600
Subject: [PATCH] cp3 handin

---
 mp3/student-distrib/init/init.cpp         | 105 ----------------------
 mp3/student-distrib/syscalls/syscalls.cpp |   6 --
 mp3/student-distrib/x86/real-wrapper.cpp  |   2 +-
 3 files changed, 1 insertion(+), 112 deletions(-)

diff --git a/mp3/student-distrib/init/init.cpp b/mp3/student-distrib/init/init.cpp
index 05da76e1..0527141e 100644
--- a/mp3/student-distrib/init/init.cpp
+++ b/mp3/student-distrib/init/init.cpp
@@ -16,111 +16,6 @@ __attribute__((used)) void init_main()
 {
     printf("Hello!\nI am the idle process!\nI am a kernel process!\nI am every other process's parent!\n");
 
-    // ---- TEST REAL MODE ----
-
-    int32_t keyb = fs_open("/dev/keyb");
-    char buf[2];
-
-    printf("keyboard opened\n");
-
-    cli();
-
-    auto vbeInfoMaybe = getVbeInfo();
-    if(vbeInfoMaybe)
-    {
-        VbeInfo vbeInfo (!vbeInfoMaybe);
-        printf("VBE Information:\n");
-        if(vbeInfo.vbe2)
-            printf("\tSupports VBE 2.0\n");
-        if(vbeInfo.vbe3)
-            printf("\tSupports VBE 3.0\n");
-        printf("\tVbeCapability = %x\n", vbeInfo.capabilityFlags);
-        printf("\tOEM = %s\n", vbeInfo.oemString);
-        printf("\tTotal Memory = %d KB\n", ((uint32_t)(vbeInfo.totalMemory)) * 64);
-
-        printf("\tAvailable Video Modes:\n");
-        for(int i=0; vbeInfo.modeList[i]!=0xffff; i++)
-        {
-            uint16_t mode = vbeInfo.modeList[i];
-            printf("\t Mode %x:  ", mode);
-
-            // Query more about this mode
-            auto modeInfoMaybe = getVideoModeInfo(mode);
-            if(modeInfoMaybe)
-            {
-                VideoModeInfo modeInfo(!modeInfoMaybe);
-                printf(" XRes=%d, YRes=%d, BaseAddr=%x, Color=%s\n", 
-                    modeInfo.xRes,
-                    modeInfo.yRes,
-                    modeInfo.physBase,
-                    modeInfo.RGBMask);
-            }
-            else printf("\t\tCan't get any information\n");
-        }
-        printf("\n");
-    }
-
-    // Wait for user
-    sti();
-    fs_read(keyb, buf, 1);
-    cli();
-
-
-    //------------- Try to draw 1024 * 768 HD Graphics ----------------
-    auto Mode118Maybe = getVideoModeInfo(0x118);
-    if(Mode118Maybe) ;
-    else printf("1024*768 24bits mode is NOT supported.\n");
-    VideoModeInfo Mode118(!Mode118Maybe);
-    uint32_t Mode118Mem = Mode118.physBase;
-
-    uint16_t orig_mode;
-
-    // Back up current mode.
-    real_context_t real_context;
-    real_context.ax = 0x0f00;
-    legacyInt(0x10, real_context);
-    orig_mode = real_context.ax & 0x00ff;
-
-    LOAD_4MB_PAGE(Mode118Mem>>22, Mode118Mem, PG_WRITABLE);
-    RELOAD_CR3();
-    for(int i=0; i < 512 * 768; i++)
-    {
-        uint8_t* pixel = (uint8_t*)(Mode118Mem + i * 3);
-        pixel[0] = 0xff;
-        pixel[1] = 0xff;
-        pixel[2] = 0x0;
-    }
-    for(int i=512*768; i < 1024 * 768; i++)
-    {
-        uint8_t* pixel = (uint8_t*)(Mode118Mem + i * 3);
-        pixel[0] = 0;
-        pixel[1] = 0xff;
-        pixel[2] = 0xff;
-    }
-
-    // Change to HD Video Mode
-    real_context.ax=0x4F02;
-    real_context.bx=0x8118;
-    legacyInt(0x10, real_context);
-
-    // Wait for user
-    sti();
-    fs_read(keyb, buf, 1);
-    cli();
-
-    // Change back to original mode
-    real_context.ax=orig_mode;
-    legacyInt(0x10, real_context);
-
-    printf("Back to KERNEL!\n");
-
-    sti();
-
-    fs_close(keyb);
-
-
-    // ------------- Actual INIT starts here ---------------
-
     /* Enable interrupts */
     sti();
 
diff --git a/mp3/student-distrib/syscalls/syscalls.cpp b/mp3/student-distrib/syscalls/syscalls.cpp
index e10467ff..54adcf6e 100644
--- a/mp3/student-distrib/syscalls/syscalls.cpp
+++ b/mp3/student-distrib/syscalls/syscalls.cpp
@@ -13,12 +13,6 @@ using namespace boost;
 using syscall_exec::sysexec;
 using syscall_halt::syshalt;
 
-// int32_t sysHalt(uint32_t p)
-// {
-//     printf("Ooo.. Halt with %d\n", p);
-//     return 0;
-// }
-
 template<typename F>
 F super_cast(uint32_t input)
 {
diff --git a/mp3/student-distrib/x86/real-wrapper.cpp b/mp3/student-distrib/x86/real-wrapper.cpp
index 211a1c39..7e40c148 100644
--- a/mp3/student-distrib/x86/real-wrapper.cpp
+++ b/mp3/student-distrib/x86/real-wrapper.cpp
@@ -16,7 +16,7 @@ void legacyInt(int16_t interrupt_num, real_context_t& regs)
 {
     uint32_t flags;
     spin_lock_irqsave(&legacyInt_lock, flags);
-    
+
     // Pass in the parameters.
     *(int16_t*)(RealModePtr(REAL_MODE_DATA_BASE, 0).get32()) = interrupt_num;
     *(real_context_t*)(RealModePtr(REAL_MODE_DATA_BASE, sizeof(int16_t)).get32()) = regs;