debugging loading full program in unreal mode

[bootcensus] / src / boot / boot.s

diff --git a/src/boot/boot.s b/src/boot/boot.s
index f17766b..b976ec7 100644 (file)
--- a/src/boot/boot.s
+++ b/src/boot/boot.s
@@ -65,15 +65,16 @@ boot:
        call read_sectors
        jmp boot2_addr
 
-       .set ARG_NSECT, 6
-       .set ARG_SIDX, 4
-
 loading_msg: .asciz "\nLoad "
 driveno_msg: .asciz "Drv:"
 
+       .global sect_per_track
 sect_per_track: .short 18
+       .global num_cylinders
 num_cylinders: .short 80
+       .global num_heads
 num_heads: .short 2
+       .global heads_mask
 heads_mask: .byte 1
 
 get_drive_chs:
@@ -118,6 +119,10 @@ ok:        xor %eax, %eax
        call print_num
        ret
 
+
+       .set ARG_NSECT, 6
+       .set ARG_SIDX, 4
+
 # read_sectors(first, num)
 read_sectors:
        push %bp