implement full character backups on GC

2024-04-06 19:52:22 -07:00
parent 91131f8b36
commit af4d3a3325
64 changed files with 3155 additions and 2208 deletions
@@ -0,0 +1,13 @@
+  # r3 = dest ptr
+  # r4 = src ptr
+  # r5 = size
+  # Clobbers r3, r4, r5
+  addi    r5, r5, 3
+  rlwinm  r5, r5, 30, 2, 31 # r5 = number of words to copy
+  mtctr   r5
+  subi    r3, r3, 4 # r3 = r3 - 4 (so we can use stwu)
+  subi    r4, r4, 4 # r4 = r4 - 4 (so we can use lwzu)
+copy_word_again:
+  lwzu    r5, [r4 + 4]
+  stwu    [r3 + 4], r5
+  bdnz    copy_word_again