...

2025-06-15 00:50:31 +02:00
parent 16768beea6
commit bff93d8963
8 changed files with 209 additions and 129 deletions
--- a/src/CLI/Runtime/nub_mem.s
+++ b/src/CLI/Runtime/nub_mem.s
@@ -0,0 +1,26 @@
+.intel_syntax noprefix
+
+.text
+.globl nub_memcpy
+# func nub_memcpy(destination: ^u8, source: ^u8, count: u64): ^u8
+nub_memcpy:
+    mov rcx, rdx
+    rep movsb
+
+.text
+.globl nub_memset
+# func nub_memset(destination: ^u8, value: i8, count: u64): ^u8
+nub_memset:
+    push rdi
+    mov rcx, rdx
+    mov al, sil
+    test rcx, rcx
+    jz memset_done
+memset_loop:
+    mov BYTE PTR [rdi], al
+    inc rdi
+    dec rcx
+    jnz memset_loop
+memset_done:
+    pop rax
+    ret