NXP Semiconductors KL25 Series - Page 289

:: [addr] "r" (ADDR), [wdata] "r" (WDATA) : "r2", "r3");
#define IOXORW(ADDR,WDATA) \
__asm("ldr r3, =(3<<26);" \
"orr r3, %[addr];" \
"mov r2, %[wdata];" \
"str r2, [r3];" \
:: [addr] "r" (ADDR), [wdata] "r" (WDATA) : "r2", "r3");
#define IOXORH(ADDR,WDATA) \
__asm("ldr r3, =(3<<26);" \
"orr r3, %[addr];" \
"mov r2, %[wdata];" \
"strh r2, [r3];" \
:: [addr] "r" (ADDR), [wdata] "r" (WDATA) : "r2", "r3");
#define IOXORB(ADDR,WDATA) \
__asm("ldr r3, =(3<<26);" \
"orr r3, %[addr];" \
"mov r2, %[wdata];" \
"strb r2, [r3];" \
:: [addr] "r" (ADDR), [wdata] "r" (WDATA) : "r2", "r3");
Chapter 17 Bit Manipulation Engine (BME)
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
Freescale Semiconductor, Inc. 289