I have this code
AREA datos, DATA, READWRITE long EQU 7*4 serie DCD 1, 2, 4, 6, 8, 7, 9 resul DCB 0 AREA prog, CODE, READONLY ENTRY mov r0, #0 eor r1, r1, r1 ;result variable ldr r2, =serie buc ldr r3, [r2, r0] add r1, r1, r3 add r0, r0, #4 cmp r0, #long bne buc ldr r2, =resul str r1, [r2] fin b fin END
The problem is that in the instruction ldr r2, =serie I dont understand what its doing, I dont know the address of the value serie.I have seen that its the same that ldr r2,[pc, #offset] but I dont know the offset value.
The processor has a finite set of immediate values it can load, other it stores in a "literal pool", typically at the end of the function, or after an unconditional branch.
So ldr r0, =0x12 would use an immediate form, and ldr r0, =0x12345678 would use a pc relative load from the literal pool
www.keil.com/.../armasm_dom1359731147760.htm www.keil.com/.../armasm_dom1359731147386.htm
So the address of the constants long, serie and resul are placed in the literal pool? But how can I know the address?