diff --git a/src/main/fragment/mos6502-common/pbuz1_derefidx_vbuyy=pbuz2_derefidx_(pbuz1_derefidx_vbuyy).asm b/src/main/fragment/mos6502-common/pbuz1_derefidx_vbuyy=pbuz2_derefidx_(pbuz1_derefidx_vbuyy).asm
new file mode 100644
index 000000000..5ce88cb2a
--- /dev/null
+++ b/src/main/fragment/mos6502-common/pbuz1_derefidx_vbuyy=pbuz2_derefidx_(pbuz1_derefidx_vbuyy).asm
@@ -0,0 +1,6 @@
+sty $ff
+lda ({z1}),y
+tay
+lda ({z2}),y
+ldy $ff
+sta ({z1}),y
\ No newline at end of file
diff --git a/src/main/fragment/mos6502-common/vbuaa=pbuz1_derefidx_vbuyy_ror_4.asm b/src/main/fragment/mos6502-common/vbuaa=pbuz1_derefidx_vbuyy_ror_4.asm
new file mode 100644
index 000000000..a315091fa
--- /dev/null
+++ b/src/main/fragment/mos6502-common/vbuaa=pbuz1_derefidx_vbuyy_ror_4.asm
@@ -0,0 +1,5 @@
+lda ({z1}),y
+lsr
+lsr
+lsr
+lsr
\ No newline at end of file