More SLRboot work

bootloader.nasm

@@ -6,6 +6,9 @@ BITS 16
 ; version 0.2.0.0-exp
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 cli 
+jmp long 0x0000:start
+
+start:
 mov [disk_identifier], dl
 mov ax, 0x1000
 mov ss, ax
@@ -39,24 +42,27 @@ call print      ; Call our string-printing routine
 ;mov dl, [disk_identifier]   ;Drive number
 ;mov bx, 0x0000               ;Offset into section
 ;int 0x13                    ;Low level disk services
-mov ah, 2
-mov al, 0x08
+
+mov ah, 0x02
+mov al, 0x01
 mov bx, 0x7c00
-mov BYTE dl, [disk_identifier]
+mov BYTE dl, 0x80
 mov BYTE dh, [partition_1.start_CHS + 1] ;byte [si + 1]
 mov BYTE cl, [partition_1.start_CHS + 2]
 mov BYTE ch, [partition_1.start_CHS]               ;First sector to read (bits 0-5), upper bits of cylinder (bits 6-7)
 int 0x13
 ;mov ax, 0x0
 ;mov ds, ax
-mov ax, 89 ; lba adress
+;mov ax, 89 ; lba adress
+call dumpax
+
 jmp long 0x0:0x7c00
 
 cli 
 hlt
 
 
-%IF 1
+%IF 0
 cli
 jmp long 0x0000:start
 
@@ -144,6 +150,15 @@ hlt
 
 .welcome_debug db 'This is debug mode', 0
 
+printCRLF:
+mov ah, 0xE
+mov al, 13
+int 0x10
+mov al, 10
+int 0x10
+ret
+%ENDIF
+
 ;Routine for printing a 'ax' as hex
 dumpax:
 pusha			; save registers
@@ -166,14 +181,6 @@ loop .loop
 popa			; restore registers
 ret
 
-printCRLF:
-mov ah, 0xE
-mov al, 13
-int 0x10
-mov al, 10
-int 0x10
-ret
-%ENDIF
 ; Routine for outputting string in 'si' register to screen
 print:
 mov ah, 0xE     ; Specify 'int 0x10' 'teletype output' function
@@ -189,26 +196,26 @@ ret
 
 data:
 message db 'SLRboot for SingOS! v0.2.0.0-exp',13,10,0
-enter_debug_mode db 'Press d to enter bootloader debug mode',13,10,0
-enter_system_check db 'Performing system check:',13,10,0
-sys_check_ok db 'System check ok', 13, 10, 0
-boot_system db 'Read SingOS from disk', 13, 10, 0
-error_str db 'Error', 0
-success_str db 'Success', 0
+;enter_debug_mode db 'Press d to enter bootloader debug mode',13,10,0
+;enter_system_check db 'Performing system check:',13,10,0
+;sys_check_ok db 'System check ok', 13, 10, 0
+;boot_system db 'Read SingOS from disk', 13, 10, 0
+;error_str db 'Error', 0
+;success_str db 'Success', 0
 disk_identifier db 0
  
 ; Pad to 510 bytes (boot sector size minus 2) with 0s, and finish with the two-byte standard boot signature
 times 446-($-$$) db 0 ; First partion entry
 partition_1:
-.active_partition db 0x00 
+.active_partition db 0x80 
 .start_CHS db 0x00, 0x00, 0x11;0x20, 0x21, 0x00 
 .disk_type db 0x83 
 .end_CHS db 0x8C, 0x3D, 0x0F 
-.start_LBA db 0x00, 0x08, 0x00, 0x00 
+.start_LBA db 0x10, 0x00, 0x00, 0x00 
 .size db 0x00, 0xC8, 0x03, 0x00  
 
 partition_2:
-.active_partition db 0x80 
+.active_partition db 0x00 
 .start_CHS db 0x8C, 0x3E, 0x0F 
 .disk_type db 0x83 
 .end_CHS db 0xFF, 0xFF, 0xFF