Interrupts are working again, new fontplate

src/interrupt.rs

@@ -385,17 +385,6 @@ unsafe extern "C" fn _supervisor_mode_trap() {
         csrr t0, sepc
         sd t0, 248(sp)
         csrr t0, sstatus
-        // Move SIE bit to SPIE. Restore_context, in the sret instruction, will do the inverse operation
-        // Isolate SIE bit (1)
-        andi t1, t0, 0x2
-        // li t1, 0x2
-        // Shift to bit 5 (SPIE)
-        slli t1, t1, 4
-        // Clear bit 1 and 5 
-        li   t2, ~0x22
-        and  t0, t0, t2
-        // Add the SPIE bit
-        or   t0, t0, t1
         sd t0, 256(sp)
 
         mv a0, sp