mirror of
https://github.com/fadden/6502bench.git
synced 2024-11-05 06:04:36 +00:00
44 lines
1.1 KiB
ArmAsm
44 lines
1.1 KiB
ArmAsm
|
; Copyright 2020 faddenSoft. All Rights Reserved.
|
||
|
|
; See the LICENSE.txt file for distribution terms (Apache 2.0).
|
||
|
|
;
|
||
|
|
; Test Rockwell's 65C02 extensions.
|
||
|
|
; Assembler: ACME
|
||
|
|
|
||
|
|
!cpu w65c02
|
||
|
|
* = $1000
|
||
|
|
|
||
|
|
U_DP = $10 ;don't define
|
||
|
|
G_DP = $20 ;define as global project symbol
|
||
|
|
L_DP = $30 ;define as local variable
|
||
|
|
|
||
|
|
; Verify both halves of branches are traced. In theory, BBR followed
|
||
|
|
; by BBS on the same bit number should be always-taken, but we don't
|
||
|
|
; try to model memory.
|
||
|
|
|
||
|
|
bbr0 U_DP,cont0
|
||
|
|
rts
|
||
|
|
cont0 bbs1 U_DP,cont1
|
||
|
|
rts
|
||
|
|
!byte $80,$80,$80 ;filler to get different branch offset
|
||
|
|
cont1 nop
|
||
|
|
|
||
|
|
; Access the three zero-page values in different ways. Also exercise
|
||
|
|
; backward and to-self branches.
|
||
|
|
; EDIT: add $30 to a local variable table here
|
||
|
|
rmb2 U_DP
|
||
|
|
smb3 U_DP
|
||
|
|
rmb4 G_DP
|
||
|
|
smb5 G_DP
|
||
|
|
rmb6 L_DP
|
||
|
|
smb7 L_DP
|
||
|
|
|
||
|
|
bback bbr2 U_DP,bback
|
||
|
|
bbs3 U_DP,bback
|
||
|
|
bbr4 G_DP,bback
|
||
|
|
bbs5 G_DP,bback
|
||
|
|
bbr6 L_DP,bback
|
||
|
|
bbs7 L_DP,bback
|
||
|
|
|
||
|
|
nop
|
||
|
|
rts
|