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| author | Richard Qin <richard.qin.x@gmail.com> | 2026-07-10 11:31:46 +0800 |
|---|---|---|
| committer | Richard Qin <richard.qin.x@gmail.com> | 2026-07-10 11:31:46 +0800 |
| commit | e90b72ec3082588b296956730bd2930cf8d5d671 (patch) | |
| tree | 36ff6916af9b4176ea5a9662219d11e721f0b691 /lib/string/arm/__aeabi_memcpy.s | |
| parent | 1767d390fbf3d0c65389de46caf0b6d43ef3b6ad (diff) | |
| download | lume-e90b72ec3082588b296956730bd2930cf8d5d671.tar.gz lume-e90b72ec3082588b296956730bd2930cf8d5d671.tar.xz | |
refactor: promote new architecture to repository root
Archive the deprecated implementation under lume-legacy, make the new kernel the default root-level build, and update repository entry points without changing kernel behavior.
Diffstat (limited to 'lib/string/arm/__aeabi_memcpy.s')
| -rw-r--r-- | lib/string/arm/__aeabi_memcpy.s | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/string/arm/__aeabi_memcpy.s b/lib/string/arm/__aeabi_memcpy.s new file mode 100644 index 0000000..3a527e4 --- /dev/null +++ b/lib/string/arm/__aeabi_memcpy.s @@ -0,0 +1,45 @@ +.syntax unified + +.global __aeabi_memcpy8 +.global __aeabi_memcpy4 +.global __aeabi_memcpy +.global __aeabi_memmove8 +.global __aeabi_memmove4 +.global __aeabi_memmove + +.type __aeabi_memcpy8,%function +.type __aeabi_memcpy4,%function +.type __aeabi_memcpy,%function +.type __aeabi_memmove8,%function +.type __aeabi_memmove4,%function +.type __aeabi_memmove,%function + +__aeabi_memmove8: +__aeabi_memmove4: +__aeabi_memmove: + cmp r0, r1 + bls 3f + cmp r2, #0 + beq 2f + adds r0, r0, r2 + adds r2, r1, r2 +1: subs r2, r2, #1 + ldrb r3, [r2] + subs r0, r0, #1 + strb r3, [r0] + cmp r1, r2 + bne 1b +2: bx lr +__aeabi_memcpy8: +__aeabi_memcpy4: +__aeabi_memcpy: +3: cmp r2, #0 + beq 2f + adds r2, r1, r2 +1: ldrb r3, [r1] + adds r1, r1, #1 + strb r3, [r0] + adds r0, r0, #1 + cmp r1, r2 + bne 1b +2: bx lr |