Thank you to anyone who has already donated - your generous donations helped make three months of treatment possible.

My brother Nate continues to fight stage IV Hodgkin's lymphoma. He's just 31, with a wife and baby girl. They have no active income (since he's been unable to return to work), no insurance, and cannot afford the treatment he needs. Nate and his family need your help. Please consider a donation, every dollar helps. Thanks.


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Dualboot.S Code
#elif defined(SANSA_CLIPPLUS)
.set pin, 7
        ldr     r0, =GPIOA
        ldr     r1, [r0, #0x400]    @ r1 = GPIOA_DIR
        bic     r2, r1, #(1<<pin)     @ A1 = input
        str     r2, [r0, #0x400]    @ write back direction

        ldr     r2, [r0, #4*(1<<pin)] @ read A1
        str     r1, [r0, #0x400]    @ write back original GPIOA_DIR

        ands    r2, r2, #(1<<pin)     @ test A1
        beq     immediate           @ boot immediately if unset

        mov     r0, #0x5000000      /* Approximately 7 seconds */
1:      subs    r0, r0, #1          /* just to prove we are running */
        bne     1b

immediate:
        b       boot_of             /* branch to OF */