read_debug
case 15: ptr[15] = read_debug(reg, 15); \
case 14: ptr[14] = read_debug(reg, 14); \
case 13: ptr[13] = read_debug(reg, 13); \
case 12: ptr[12] = read_debug(reg, 12); \
case 11: ptr[11] = read_debug(reg, 11); \
case 10: ptr[10] = read_debug(reg, 10); \
case 9: ptr[9] = read_debug(reg, 9); \
case 8: ptr[8] = read_debug(reg, 8); \
case 7: ptr[7] = read_debug(reg, 7); \
case 6: ptr[6] = read_debug(reg, 6); \
case 5: ptr[5] = read_debug(reg, 5); \
case 4: ptr[4] = read_debug(reg, 4); \
case 3: ptr[3] = read_debug(reg, 3); \
case 2: ptr[2] = read_debug(reg, 2); \
case 1: ptr[1] = read_debug(reg, 1); \
default: ptr[0] = read_debug(reg, 0); \