| #ifndef __ZBOOT_MACRO_H |
| #define __ZBOOT_MACRO_H |
| |
| /* The LIST command is used to include comments in the script */ |
| .macro LIST comment |
| .endm |
| |
| /* The ED command is used to write a 32-bit word */ |
| .macro ED, addr, data |
| LDR r0, 1f |
| LDR r1, 2f |
| STR r1, [r0] |
| B 3f |
| 1 : .long \addr |
| 2 : .long \data |
| 3 : |
| .endm |
| |
| /* The EW command is used to write a 16-bit word */ |
| .macro EW, addr, data |
| LDR r0, 1f |
| LDR r1, 2f |
| STRH r1, [r0] |
| B 3f |
| 1 : .long \addr |
| 2 : .long \data |
| 3 : |
| .endm |
| |
| /* The EB command is used to write an 8-bit word */ |
| .macro EB, addr, data |
| LDR r0, 1f |
| LDR r1, 2f |
| STRB r1, [r0] |
| B 3f |
| 1 : .long \addr |
| 2 : .long \data |
| 3 : |
| .endm |
| |
| /* The WAIT command is used to delay the execution */ |
| .macro WAIT, time, reg |
| LDR r1, 1f |
| LDR r0, 2f |
| STR r0, [r1] |
| 10 : |
| LDR r0, [r1] |
| CMP r0, #0x00000000 |
| BNE 10b |
| NOP |
| B 3f |
| 1 : .long \reg |
| 2 : .long \time * 100 |
| 3 : |
| .endm |
| |
| /* The DD command is used to read a 32-bit word */ |
| .macro DD, start, end |
| LDR r1, 1f |
| B 2f |
| 1 : .long \start |
| 2 : |
| .endm |
| |
| #endif /* __ZBOOT_MACRO_H */ |