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authorDuncan Smith2010-11-09 23:40:32 -0800
committerDuncan Smith2010-11-09 23:40:32 -0800
commite94eb8d5ba0a9d3e474fd91b50465639b01578bd (patch)
tree00806c83ba958c36f15a3c322e386b2dcc87644c
parentcc4a48261b48d9e3bc08effcd3d4106183b282d3 (diff)
Clarified used/free registers list
-rw-r--r--680.inc4
1 files changed, 4 insertions, 0 deletions
diff --git a/680.inc b/680.inc
index ac22f33..9cb3325 100644
--- a/680.inc
+++ b/680.inc
@@ -2,8 +2,12 @@
;; Register naming
esp EQUR a4
+ ;; a5 is pointer to base of opcode jump table
epc EQUR a6
+ ;; d0 is scratch generally used in macros
+ ;; d1 is scratch generally used outside macros
+ ;; d2 is scratch and up for grabs
eaf EQUR d3
ebc EQUR d4
ede EQUR d5