From d0cf5fc2232269a8c784f57d4136645243e2c5cb Mon Sep 17 00:00:00 2001
From: Bobbi Webber-Manners <bobbi.manners@gmail.com>
Date: Sat, 2 Jun 2018 23:53:32 -0400
Subject: [PATCH] Added eightballvmzp_a2e.S, which was missed for v0.75

---
 eightballvmzp_a2e.S | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 eightballvmzp_a2e.S

diff --git a/eightballvmzp_a2e.S b/eightballvmzp_a2e.S
new file mode 100644
index 0000000..7b29ce2
--- /dev/null
+++ b/eightballvmzp_a2e.S
@@ -0,0 +1,18 @@
+;
+; Apple II zero page is used for VM
+; registers: evalptr, PC, SP, FP
+
+; $80-$9a are used by cc65 ZP segment so avoid this range
+
+; Zero-page usage is documented in:
+; ProDOS 8 Technical Reference Manual Section A.4
+; The upper half of ZP is generally used by BASIC only, so we can use it.
+
+.exportzp _evalptr   := $a0
+.exportzp _pc        := $a1
+.exportzp _sp        := $a3
+.exportzp _fp        := $a5
+.exportzp _wordptr   := $a7
+.exportzp _byteptr   := $a9
+.exportzp _evalstack := $ab ; 32 bytes
+