zboot_macros.h

Go to the documentation of this file.

#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 */