.text .global gp2x_memset; ;@.type gp2x_memset,%function .align 4; gp2x_memset: mov a4, a1 cmp a3, $8 @ at least 8 bytes to do? blt 2f orr a2, a2, a2, lsl $8 orr a2, a2, a2, lsl $16 1: tst a4, $3 @ aligned yet? strneb a2, [a4], $1 subne a3, a3, $1 bne 1b mov ip, a2 1: cmp a3, $8 @ 8 bytes still to do? blt 2f stmia a4!, {a2, ip} sub a3, a3, $8 cmp a3, $8 @ 8 bytes still to do? blt 2f stmia a4!, {a2, ip} sub a3, a3, $8 cmp a3, $8 @ 8 bytes still to do? blt 2f stmia a4!, {a2, ip} sub a3, a3, $8 cmp a3, $8 @ 8 bytes still to do? stmgeia a4!, {a2, ip} subge a3, a3, $8 bge 1b 2: movs a3, a3 @ anything left? moveq pc, lr @ nope rsb a3, a3, $7 add pc, pc, a3, lsl $2 mov r0, r0 strb a2, [a4], $1 strb a2, [a4], $1 strb a2, [a4], $1 strb a2, [a4], $1 strb a2, [a4], $1 strb a2, [a4], $1 strb a2, [a4], $1 mov pc, lr