NXP Semiconductors KL25 Series - Application Information

Table 17-8. Decorated peripheral and GPIO address details (continued)
Peripheral address space Description
0x4400_0000 - 0x4FFF_FFFF Decorated AND, OR, XOR, LAC1, LAS1 references to peripherals and GPIO based at
either 0x4000_F000 or 0x400F_F000
0x5000_0000 - 0x5FFF_FFFF Decorated BFI, UBFX references to peripherals and GPIO only based at 0x4000_F000
17.5 Application Information
In this section, GNU assembler macros with C expression operands are presented as
examples of the required instructions to perform decorated operations. This section
specifically presents a partial bme.h file defining the assembly language expressions for
decorated logical stores: AND, OR and XOR. Comparable functions for BFI and the
decorated loads are more complex and available in the complete BME header file.
These macros use the same function names presented in Functional Description.
#define IOANDW(ADDR,WDATA) \
__asm("ldr r3, =(1<<26);" \
"orr r3, %[addr];" \
"mov r2, %[wdata];" \
"str r2, [r3];" \
:: [addr] "r" (ADDR), [wdata] "r" (WDATA) : "r2", "r3");
#define IOANDH(ADDR,WDATA) \
__asm("ldr r3, =(1<<26);" \
"orr r3, %[addr];" \
"mov r2, %[wdata];" \
"strh r2, [r3];" \
:: [addr] "r" (ADDR), [wdata] "r" (WDATA) : "r2", "r3");
#define IOANDB(ADDR,WDATA) \
__asm("ldr r3, =(1<<26);" \
"orr r3, %[addr];" \
"mov r2, %[wdata];" \
"strb r2, [r3];" \
:: [addr] "r" (ADDR), [wdata] "r" (WDATA) : "r2", "r3");
#define IOORW(ADDR,WDATA) \
__asm("ldr r3, =(1<<27);" \
"orr r3, %[addr];" \
"mov r2, %[wdata];" \
"str r2, [r3];" \
:: [addr] "r" (ADDR), [wdata] "r" (WDATA) : "r2", "r3");
#define IOORH(ADDR,WDATA) \
__asm("ldr r3, =(1<<27);" \
"orr r3, %[addr];" \
"mov r2, %[wdata];" \
"strh r2, [r3];" \
:: [addr] "r" (ADDR), [wdata] "r" (WDATA) : "r2", "r3");
#define IOORB(ADDR,WDATA) \
__asm("ldr r3, =(1<<27);" \
"orr r3, %[addr];" \
"mov r2, %[wdata];" \
"strb r2, [r3];" \
Application Information
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
288 Freescale Semiconductor, Inc.