[FREELDR] Re-integrate the ASM files (and corresponding C code) in MSVC builds, that...

[reactos.git] / boot / freeldr / freeldr / arch / i386 / entry.S

diff --git a/boot/freeldr/freeldr/arch/i386/entry.S b/boot/freeldr/freeldr/arch/i386/entry.S
index 90a4027..7de40ca 100644 (file)
--- a/boot/freeldr/freeldr/arch/i386/entry.S
+++ b/boot/freeldr/freeldr/arch/i386/entry.S
@@ -25,6 +25,12 @@ EXTERN _BootMain:PROC
 EXTERN _InitIdt:PROC
 EXTERN _i386Idt:DWORD
 //EXTERN _i386idtptr:FWORD
+EXTERN cmdline:DWORD
+
+#ifdef _USE_ML
+EXTERN __bss_start__:DWORD
+EXTERN __bss_end__:DWORD
+#endif
 
 .code32
 
@@ -59,6 +65,8 @@ ContinueAddress:
 
 _FrldrStartup:
 
+ASSUME /*CS:_TEXT,*/ DS:_DATA, ES:_DATA, FS:_DATA, GS:_DATA, SS:_DATA
+
     /* Store BootDrive and BootPartition */
     mov byte ptr ds:[_FrldrBootDrive], dl
     xor eax, eax
@@ -69,11 +77,7 @@ _FrldrStartup:
     mov eax, dword ptr ds:[BSS_RealModeEntry]
     mov dword ptr ds:[SwitchToReal16Address], eax
 
-    /* Initialize the idt */
-    call _InitIdt
-
-#ifndef _USE_ML
-    /* Clean out bss */
+    /* Clean out BSS */
     xor eax, eax
     mov edi, offset __bss_start__
     mov ecx, offset __bss_end__ + 3
@@ -81,11 +85,11 @@ _FrldrStartup:
     shr ecx, 2
     rep stosd
 
+    /* Initialize the idt */
+    call _InitIdt
+
     /* Pass the command line to BootMain */
     mov eax, offset cmdline
-#else
-    xor eax, eax
-#endif
 
     /* GO! */
     push eax
@@ -93,7 +97,7 @@ _FrldrStartup:
 
     /* We should never get here */
 stop:
-    jmp stop
+    jmp short stop
     nop
     nop
 
@@ -181,7 +185,7 @@ SwitchToReal:
     mov ss, ax
 
     /* Save 32-bit stack pointer */
-    mov dword ptr [stack32], esp
+    mov dword ptr ds:[stack32], esp
 
     /* jmp to 16-bit segment to set the limit correctly */
     .byte HEX(0ea) // jmp far RMODE_CS:switch_to_real16
@@ -236,11 +240,7 @@ gdtptr:
     .word HEX(27)       /* Limit */
     .long gdt           /* Base Address */
 
-/* Real-mode IDT pointer */
-rmode_idtptr:
-    .word HEX(3ff)      /* Limit */
-    .long 0             /* Base Address */
-
+// See _i386IdtDescriptor
 PUBLIC i386idtptr
 i386idtptr:
     .word 255           /* Limit */