24 Constants

The following example shows loading a constant using the %hi and %lo assembler functions.

  .equ  UART_BASE, 0x40003080

  lui a0, %hi(UART_BASE)
  addi  a0, a0, %lo(UART_BASE)

Which generates the following assembler output as seen by objdump:

0000000000000000 \<.text>:
   0: 40003537            lui a0,0x40003
   4: 08050513            addi  a0,a0,128 # 40003080 \<UART_BASE>