diff options
Diffstat (limited to 'include/common')
| -rw-r--r-- | include/common/aarch32/asm_macros.S | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/common/aarch32/asm_macros.S b/include/common/aarch32/asm_macros.S index 3adcbf51..f5737449 100644 --- a/include/common/aarch32/asm_macros.S +++ b/include/common/aarch32/asm_macros.S @@ -80,6 +80,19 @@ .endm /* + * Helper macro to generate the best mov/movw/movt combinations + * according to the value to be moved. + */ + .macro mov_imm _reg, _val + .if ((\_val) & 0xffff0000) == 0 + mov \_reg, #(\_val) + .else + movw \_reg, #((\_val) & 0xffff) + movt \_reg, #((\_val) >> 16) + .endif + .endm + + /* * Macro to mark instances where we're jumping to a function and don't * expect a return. To provide the function being jumped to with * additional information, we use 'bl' instruction to jump rather than |