The example requires RCC-1.2.x (RTEMS-4.10) to build, LEON4-N2X or GR740 board
and GRMON2 to control the system.

GR740 AMP example where the single-processor RTEMS is used in 4 instances,
one per core. There is no communication between the cores in this example,
just four independent CPUs. Resource sharing is demonstrated when it comens to
 * memory (text/data/bss/heap/stack)
 * UART - system console
 * Timer - system clock
 * IRQCTRL - GR740 irq(a)mp controller set in AMP mode

RTEMS[1]
 - system console on UART0
 - system clock from GPTIMER[0].timer0
 - interrupt controller irqmp[0].irqctrl0
 
RTEMS[2]
 - no system console
 - system clock from GPTIMER[1].timer0
 - interrupt controller irqmp[0].irqctrl1

RTEMS[3]
 - no system console
 - system clock from GPTIMER[2].timer0
 - interrupt controller irqmp[0].irqctrl2

RTEMS[4]
 - no system console
 - system clock from GPTIMER[3].timer0
 - interrupt controller irqmp[0].irqctrl3


The application does not execute anything in particular, one has to add code
into the four independent CPUs Init task. One can examine the CPUs using the
"cpu act N" GRMON2 command in combination with CPU specific commands like reg,
bt, thread info, etc.
