ARM/aeabi uidivmod
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Description
Perform a division of R0/R1 and save quotient in R0 and remainder in R1.
Syntax
BL __aeabi_uidivmod
Examples
.text:00000EEE MOVS R0, R4 ; R0 = 0x7365
.text:00000EF0 LDR R1, [SP,#0x1BB8+current_prime_number] ; R1 = 0x2
.text:00000EF2 BL __aeabi_uidivmod ; division R0/R1. R0 = quotient = 0x39b2, R1 = remainder = 0x1
.text:00000EF6 LSLS R1, R1, #0x10
.text:00000EF8 LSRS R1, R1, #0x10
.text:00000EFA BNE loc_F5C
The above example could be illustrated as follows in python
>>> r0 = 0x7365
>>> r1 = 0x2
>>> (quotient, remainder) = (r0/r1, r0%r1)
>>> hex(quotient)
'0x39b2'
>>> hex(remainder)
'0x1'