Nintendo 1504166 - Game Boy Advance SP Edition Console Programming Manual page 166

AGB Programming Manual
6) Return value to registers R0, R1, and R3, in cases where a system call
provides a return value, and then return to the user program.
USR Stack
03007F00
©1999 - 2001 Nintendo of America Inc.
IRQ Stack
03007FA0
SP_usr
03007F00
166
SVC Stack
03007FE0
SP_irq
03007FA0
D.C.N. AGB-06-0001-002B4
AGB System Calls
SP_svc