.extern _etext
.extern _sdata
.extern _edata
+.extern scroll_video
+
.global _start
+.global dummyS_isr
_start:
# reset flags and registers
mov %ax,%bx
mov %ax,%bp
mov %ax,%ss
+
+ # set correct segment (use at
+ # position 0x2000 + 0 + IP
+ mov $0x2000, %bx
+ mov %bx, %cs
+ xor %bx, %bx
# set stack pointer for wonderswan
# color
xor %ax, %ax
mov %ax, %ds
+
# jump to C
call main
+dummyS_isr:
+ push %ax
+ call scroll_video
+ ;xor %ax, %ax
+ ;in $0x12, %al
+ ;inc %al
+ ;out %al, $0x12
+ pop %ax
+ iret
+
# should not be here
loop: nop
jmp loop