from eCos.c:234
static struct stack_register_offset rtos_ecos_regoff_cortexm[] = {
{ ARMV7M_R0, -1, 32 },
{ ARMV7M_R1, -1, 32 },
{ ARMV7M_R2, -1, 32 },
{ ARMV7M_R3, -1, 32 },
{ ARMV7M_R4, -1, 32 },
{ ARMV7M_R5, -1, 32 },
{ ARMV7M_R6, -1, 32 },
{ ARMV7M_R7, -1, 32 },
{ ARMV7M_R8, -1, 32 },
{ ARMV7M_R9, -1, 32 },
{ ARMV7M_R10, -1, 32 },
{ ARMV7M_R11, -1, 32 },
{ ARMV7M_R12, -1, 32 },
{ ARMV7M_R13, -1, 32 },
{ ARMV7M_R14, -1, 32 },
{ ARMV7M_PC, -1, 32 },
{ ARMV7M_XPSR, -1, 32 },
{ ARMV7M_BASEPRI, -1, 32 },
{ ARMV7M_FPSCR, -1, 32 },
{ ARMV7M_D0, -1, 64 },
{ ARMV7M_D1, -1, 64 },
{ ARMV7M_D2, -1, 64 },
{ ARMV7M_D3, -1, 64 },
{ ARMV7M_D4, -1, 64 },
{ ARMV7M_D5, -1, 64 },
{ ARMV7M_D6, -1, 64 },
{ ARMV7M_D7, -1, 64 },
{ ARMV7M_D8, -1, 64 },
{ ARMV7M_D9, -1, 64 },
{ ARMV7M_D10, -1, 64 },
{ ARMV7M_D11, -1, 64 },
{ ARMV7M_D12, -1, 64 },
{ ARMV7M_D13, -1, 64 },
{ ARMV7M_D14, -1, 64 },
{ ARMV7M_D15, -1, 64 },
};