r2 79 bsp/hal/arm/arch/context.c u->r2 = 0x22222222; r2 113 bsp/hal/arm/arch/trap.c r->r0, r->r1, r->r2, r->r3, r->r4, r->r5); r2 69 bsp/hal/arm/include/context.h uint32_t r2; /* +8 (08) */ r2 60 bsp/hal/ppc/include/context.h uint32_t r2;