diff options
Diffstat (limited to 'lib/libc/arm/string/memcpy_arm.S')
| -rw-r--r-- | lib/libc/arm/string/memcpy_arm.S | 37 |
1 files changed, 20 insertions, 17 deletions
diff --git a/lib/libc/arm/string/memcpy_arm.S b/lib/libc/arm/string/memcpy_arm.S index eff1eb0..56fb703 100644 --- a/lib/libc/arm/string/memcpy_arm.S +++ b/lib/libc/arm/string/memcpy_arm.S @@ -31,6 +31,9 @@ #include <machine/asm.h> __FBSDID("$FreeBSD$"); + +.syntax unified + /* * This is one fun bit of code ... * Some easy listening music is suggested while trying to understand this @@ -91,8 +94,8 @@ ENTRY(memcpy) bge .Lmemcpy_loop32 cmn r2, #0x10 - ldmgeia r1!, {r3, r4, r12, lr} /* blat a remaining 16 bytes */ - stmgeia r0!, {r3, r4, r12, lr} + ldmiage r1!, {r3, r4, r12, lr} /* blat a remaining 16 bytes */ + stmiage r0!, {r3, r4, r12, lr} subge r2, r2, #0x10 ldmia sp!, {r4} /* return r4 */ @@ -101,9 +104,9 @@ ENTRY(memcpy) /* blat 12 bytes at a time */ .Lmemcpy_loop12: - ldmgeia r1!, {r3, r12, lr} - stmgeia r0!, {r3, r12, lr} - subges r2, r2, #0x0c + ldmiage r1!, {r3, r12, lr} + stmiage r0!, {r3, r12, lr} + subsge r2, r2, #0x0c bge .Lmemcpy_loop12 .Lmemcpy_l12: @@ -113,26 +116,26 @@ ENTRY(memcpy) subs r2, r2, #4 ldrlt r3, [r1], #4 strlt r3, [r0], #4 - ldmgeia r1!, {r3, r12} - stmgeia r0!, {r3, r12} + ldmiage r1!, {r3, r12} + stmiage r0!, {r3, r12} subge r2, r2, #4 .Lmemcpy_l4: /* less than 4 bytes to go */ adds r2, r2, #4 #ifdef __APCS_26_ - ldmeqia sp!, {r0, pc}^ /* done */ + ldmiaeq sp!, {r0, pc}^ /* done */ #else - ldmeqia sp!, {r0, pc} /* done */ + ldmiaeq sp!, {r0, pc} /* done */ #endif /* copy the crud byte at a time */ cmp r2, #2 ldrb r3, [r1], #1 strb r3, [r0], #1 - ldrgeb r3, [r1], #1 - strgeb r3, [r0], #1 - ldrgtb r3, [r1], #1 - strgtb r3, [r0], #1 + ldrbge r3, [r1], #1 + strbge r3, [r0], #1 + ldrbgt r3, [r1], #1 + strbgt r3, [r0], #1 ldmia sp!, {r0, pc} /* erg - unaligned destination */ @@ -143,10 +146,10 @@ ENTRY(memcpy) /* align destination with byte copies */ ldrb r3, [r1], #1 strb r3, [r0], #1 - ldrgeb r3, [r1], #1 - strgeb r3, [r0], #1 - ldrgtb r3, [r1], #1 - strgtb r3, [r0], #1 + ldrbge r3, [r1], #1 + strbge r3, [r0], #1 + ldrbgt r3, [r1], #1 + strbgt r3, [r0], #1 subs r2, r2, r12 blt .Lmemcpy_l4 /* less the 4 bytes */ |
