first commit
This commit is contained in:
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12434a8e47
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||||||
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# Auto detect text files and perform LF normalization
|
||||||
|
* text=auto
|
||||||
|
|
||||||
|
# Custom for Visual Studio
|
||||||
|
*.cs diff=csharp
|
||||||
|
*.sln merge=union
|
||||||
|
*.csproj merge=union
|
||||||
|
*.vbproj merge=union
|
||||||
|
*.fsproj merge=union
|
||||||
|
*.dbproj merge=union
|
||||||
|
|
||||||
|
# Standard to msysgit
|
||||||
|
*.doc diff=astextplain
|
||||||
|
*.DOC diff=astextplain
|
||||||
|
*.docx diff=astextplain
|
||||||
|
*.DOCX diff=astextplain
|
||||||
|
*.dot diff=astextplain
|
||||||
|
*.DOT diff=astextplain
|
||||||
|
*.pdf diff=astextplain
|
||||||
|
*.PDF diff=astextplain
|
||||||
|
*.rtf diff=astextplain
|
||||||
|
*.RTF diff=astextplain
|
|
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|
||||||
|
#################
|
||||||
|
## Eclipse
|
||||||
|
#################
|
||||||
|
|
||||||
|
*.pydevproject
|
||||||
|
.project
|
||||||
|
.metadata
|
||||||
|
bin/
|
||||||
|
tmp/
|
||||||
|
*.tmp
|
||||||
|
*.bak
|
||||||
|
*.swp
|
||||||
|
*~.nib
|
||||||
|
local.properties
|
||||||
|
.classpath
|
||||||
|
.settings/
|
||||||
|
.loadpath
|
||||||
|
|
||||||
|
# External tool builders
|
||||||
|
.externalToolBuilders/
|
||||||
|
|
||||||
|
# Locally stored "Eclipse launch configurations"
|
||||||
|
*.launch
|
||||||
|
|
||||||
|
# CDT-specific
|
||||||
|
.cproject
|
||||||
|
|
||||||
|
# PDT-specific
|
||||||
|
.buildpath
|
||||||
|
|
||||||
|
|
||||||
|
#################
|
||||||
|
## Visual Studio
|
||||||
|
#################
|
||||||
|
|
||||||
|
## Ignore Visual Studio temporary files, build results, and
|
||||||
|
## files generated by popular Visual Studio add-ons.
|
||||||
|
|
||||||
|
# User-specific files
|
||||||
|
*.suo
|
||||||
|
*.user
|
||||||
|
*.sln.docstates
|
||||||
|
|
||||||
|
# Build results
|
||||||
|
|
||||||
|
[Dd]ebug/
|
||||||
|
[Rr]elease/
|
||||||
|
x64/
|
||||||
|
build/
|
||||||
|
[Bb]in/
|
||||||
|
[Oo]bj/
|
||||||
|
|
||||||
|
# MSTest test Results
|
||||||
|
[Tt]est[Rr]esult*/
|
||||||
|
[Bb]uild[Ll]og.*
|
||||||
|
|
||||||
|
*_i.c
|
||||||
|
*_p.c
|
||||||
|
*.ilk
|
||||||
|
*.meta
|
||||||
|
*.obj
|
||||||
|
*.pch
|
||||||
|
*.pdb
|
||||||
|
*.pgc
|
||||||
|
*.pgd
|
||||||
|
*.rsp
|
||||||
|
*.sbr
|
||||||
|
*.tlb
|
||||||
|
*.tli
|
||||||
|
*.tlh
|
||||||
|
*.tmp
|
||||||
|
*.tmp_proj
|
||||||
|
*.log
|
||||||
|
*.vspscc
|
||||||
|
*.vssscc
|
||||||
|
.builds
|
||||||
|
*.pidb
|
||||||
|
*.log
|
||||||
|
*.scc
|
||||||
|
|
||||||
|
# Visual C++ cache files
|
||||||
|
ipch/
|
||||||
|
*.aps
|
||||||
|
*.ncb
|
||||||
|
*.opensdf
|
||||||
|
*.sdf
|
||||||
|
*.cachefile
|
||||||
|
|
||||||
|
# Visual Studio profiler
|
||||||
|
*.psess
|
||||||
|
*.vsp
|
||||||
|
*.vspx
|
||||||
|
|
||||||
|
# Guidance Automation Toolkit
|
||||||
|
*.gpState
|
||||||
|
|
||||||
|
# ReSharper is a .NET coding add-in
|
||||||
|
_ReSharper*/
|
||||||
|
*.[Rr]e[Ss]harper
|
||||||
|
|
||||||
|
# TeamCity is a build add-in
|
||||||
|
_TeamCity*
|
||||||
|
|
||||||
|
# DotCover is a Code Coverage Tool
|
||||||
|
*.dotCover
|
||||||
|
|
||||||
|
# NCrunch
|
||||||
|
*.ncrunch*
|
||||||
|
.*crunch*.local.xml
|
||||||
|
|
||||||
|
# Installshield output folder
|
||||||
|
[Ee]xpress/
|
||||||
|
|
||||||
|
# DocProject is a documentation generator add-in
|
||||||
|
DocProject/buildhelp/
|
||||||
|
DocProject/Help/*.HxT
|
||||||
|
DocProject/Help/*.HxC
|
||||||
|
DocProject/Help/*.hhc
|
||||||
|
DocProject/Help/*.hhk
|
||||||
|
DocProject/Help/*.hhp
|
||||||
|
DocProject/Help/Html2
|
||||||
|
DocProject/Help/html
|
||||||
|
|
||||||
|
# Click-Once directory
|
||||||
|
publish/
|
||||||
|
|
||||||
|
# Publish Web Output
|
||||||
|
*.Publish.xml
|
||||||
|
*.pubxml
|
||||||
|
|
||||||
|
# NuGet Packages Directory
|
||||||
|
## TODO: If you have NuGet Package Restore enabled, uncomment the next line
|
||||||
|
#packages/
|
||||||
|
|
||||||
|
# Windows Azure Build Output
|
||||||
|
csx
|
||||||
|
*.build.csdef
|
||||||
|
|
||||||
|
# Windows Store app package directory
|
||||||
|
AppPackages/
|
||||||
|
|
||||||
|
# Others
|
||||||
|
sql/
|
||||||
|
*.Cache
|
||||||
|
ClientBin/
|
||||||
|
[Ss]tyle[Cc]op.*
|
||||||
|
~$*
|
||||||
|
*~
|
||||||
|
*.dbmdl
|
||||||
|
*.[Pp]ublish.xml
|
||||||
|
*.pfx
|
||||||
|
*.publishsettings
|
||||||
|
|
||||||
|
# RIA/Silverlight projects
|
||||||
|
Generated_Code/
|
||||||
|
|
||||||
|
# Backup & report files from converting an old project file to a newer
|
||||||
|
# Visual Studio version. Backup files are not needed, because we have git ;-)
|
||||||
|
_UpgradeReport_Files/
|
||||||
|
Backup*/
|
||||||
|
UpgradeLog*.XML
|
||||||
|
UpgradeLog*.htm
|
||||||
|
|
||||||
|
# SQL Server files
|
||||||
|
App_Data/*.mdf
|
||||||
|
App_Data/*.ldf
|
||||||
|
|
||||||
|
#############
|
||||||
|
## Windows detritus
|
||||||
|
#############
|
||||||
|
|
||||||
|
# Windows image file caches
|
||||||
|
Thumbs.db
|
||||||
|
ehthumbs.db
|
||||||
|
|
||||||
|
# Folder config file
|
||||||
|
Desktop.ini
|
||||||
|
|
||||||
|
# Recycle Bin used on file shares
|
||||||
|
$RECYCLE.BIN/
|
||||||
|
|
||||||
|
# Mac crap
|
||||||
|
.DS_Store
|
||||||
|
|
||||||
|
|
||||||
|
#############
|
||||||
|
## Python
|
||||||
|
#############
|
||||||
|
|
||||||
|
*.py[co]
|
||||||
|
|
||||||
|
# Packages
|
||||||
|
*.egg
|
||||||
|
*.egg-info
|
||||||
|
dist/
|
||||||
|
build/
|
||||||
|
eggs/
|
||||||
|
parts/
|
||||||
|
var/
|
||||||
|
sdist/
|
||||||
|
develop-eggs/
|
||||||
|
.installed.cfg
|
||||||
|
|
||||||
|
# Installer logs
|
||||||
|
pip-log.txt
|
||||||
|
|
||||||
|
# Unit test / coverage reports
|
||||||
|
.coverage
|
||||||
|
.tox
|
||||||
|
|
||||||
|
#Translations
|
||||||
|
*.mo
|
||||||
|
|
||||||
|
#Mr Developer
|
||||||
|
.mr.developer.cfg
|
Binary file not shown.
File diff suppressed because it is too large
Load Diff
|
@ -0,0 +1,969 @@
|
||||||
|
;
|
||||||
|
; 6 5 0 2 I N T E R R U P T T E S T
|
||||||
|
;
|
||||||
|
; Copyright (C) 2013 Klaus Dormann
|
||||||
|
;
|
||||||
|
; This program is free software: you can redistribute it and/or modify
|
||||||
|
; it under the terms of the GNU General Public License as published by
|
||||||
|
; the Free Software Foundation, either version 3 of the License, or
|
||||||
|
; (at your option) any later version.
|
||||||
|
;
|
||||||
|
; This program is distributed in the hope that it will be useful,
|
||||||
|
; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
; GNU General Public License for more details.
|
||||||
|
;
|
||||||
|
; You should have received a copy of the GNU General Public License
|
||||||
|
; along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
|
||||||
|
; This program is designed to test IRQ and NMI of a 6502 emulator. It requires
|
||||||
|
; an internal or external feedback register to the IRQ & NMI inputs
|
||||||
|
;
|
||||||
|
; version 19-jul-2013
|
||||||
|
; contact info at http://2m5.de or email K@2m5.de
|
||||||
|
;
|
||||||
|
; assembled with AS65 from http://www.kingswood-consulting.co.uk/assemblers/
|
||||||
|
; command line switches: -l -m -s2 -w -h0
|
||||||
|
; | | | | no page headers in listing
|
||||||
|
; | | | wide listing (133 char/col)
|
||||||
|
; | | write intel hex file instead of binary
|
||||||
|
; | expand macros in listing
|
||||||
|
; generate pass2 listing
|
||||||
|
;
|
||||||
|
; No IO - should be run from a monitor with access to registers.
|
||||||
|
; To run load intel hex image with a load command, than alter PC to 400 hex and
|
||||||
|
; enter a go command.
|
||||||
|
; Loop on program counter determines error or successful completion of test.
|
||||||
|
; Check listing for relevant traps (jump/branch *).
|
||||||
|
;
|
||||||
|
; Debugging hints:
|
||||||
|
; Most of the code is written sequentially. if you hit a trap, check the
|
||||||
|
; immediately preceeding code for the instruction to be tested. Results are
|
||||||
|
; tested first, flags are checked second by pushing them onto the stack and
|
||||||
|
; pulling them to the accumulator after the result was checked. The "real"
|
||||||
|
; flags are no longer valid for the tested instruction at this time!
|
||||||
|
; If the tested instruction was indexed, the relevant index (X or Y) must
|
||||||
|
; also be checked. Opposed to the flags, X and Y registers are still valid.
|
||||||
|
;
|
||||||
|
; versions:
|
||||||
|
; 19-jul-2013 1st version distributed for testing
|
||||||
|
|
||||||
|
; C O N F I G U R A T I O N
|
||||||
|
;
|
||||||
|
;ROM_vectors MUST be writable & the I_flag MUST be alterable
|
||||||
|
|
||||||
|
;load_data_direct (0=move from code segment, 1=load directly)
|
||||||
|
;loading directly is preferred but may not be supported by your platform
|
||||||
|
;0 produces only consecutive object code, 1 is not suitable for a binary image
|
||||||
|
load_data_direct = 1
|
||||||
|
|
||||||
|
;NMI & IRQ are tested with a feedback register
|
||||||
|
;emulators diag register - set i_drive = 0 for a latch (74HC573)
|
||||||
|
I_port = $bffc ;feedback port address
|
||||||
|
I_ddr = 0 ;feedback DDR address, 0 = no DDR
|
||||||
|
I_drive = 1 ;0 = totem pole, 1 = open collector
|
||||||
|
IRQ_bit = 0 ;bit number of feedback to IRQ
|
||||||
|
NMI_bit = 1 ;bit number of feedback to NMI, -1 if not available
|
||||||
|
|
||||||
|
;typical IO chip port B - set i_drive = 0 to avoid pullup resistors
|
||||||
|
;I_port = $bfb2 ;feedback port address
|
||||||
|
;I_ddr = $bfb3 ;feedback DDR address, 0 = no DDR
|
||||||
|
;I_drive = 1 ;0 = totem pole, 1 = open collector
|
||||||
|
;IRQ_bit = 0 ;bit number of feedback to IRQ
|
||||||
|
;NMI_bit = 1 ;bit number of feedback to NMI, -1 if not available
|
||||||
|
|
||||||
|
;decimal mode flag during IRQ, NMI & BRK
|
||||||
|
D_clear = 1 ;0 = not cleared (NMOS), 1 = cleared (CMOS)
|
||||||
|
|
||||||
|
;configure memory - try to stay away from memory used by the system
|
||||||
|
;zero_page memory start address, 6 consecutive Bytes required
|
||||||
|
zero_page = $a
|
||||||
|
|
||||||
|
;data_segment memory start address, 4 consecutive Bytes required
|
||||||
|
data_segment = $200
|
||||||
|
|
||||||
|
;code_segment memory start address
|
||||||
|
code_segment = $400
|
||||||
|
|
||||||
|
noopt ;do not take shortcuts
|
||||||
|
|
||||||
|
;macros for error & success traps to allow user modification
|
||||||
|
;example:
|
||||||
|
;trap macro
|
||||||
|
; jsr my_error_handler
|
||||||
|
; endm
|
||||||
|
;trap_eq macro
|
||||||
|
; bne skip\?
|
||||||
|
; trap ;failed equal (zero)
|
||||||
|
;skip\?
|
||||||
|
; endm
|
||||||
|
trap macro
|
||||||
|
jmp * ;failed anyway
|
||||||
|
endm
|
||||||
|
trap_eq macro
|
||||||
|
beq * ;failed equal (zero)
|
||||||
|
endm
|
||||||
|
trap_ne macro
|
||||||
|
bne * ;failed not equal (non zero)
|
||||||
|
endm
|
||||||
|
success macro
|
||||||
|
jmp * ;test passed, no errors
|
||||||
|
endm
|
||||||
|
|
||||||
|
|
||||||
|
carry equ %00000001 ;flag bits in status
|
||||||
|
zero equ %00000010
|
||||||
|
intdis equ %00000100
|
||||||
|
decmode equ %00001000
|
||||||
|
break equ %00010000
|
||||||
|
reserv equ %00100000
|
||||||
|
overfl equ %01000000
|
||||||
|
minus equ %10000000
|
||||||
|
|
||||||
|
fc equ carry
|
||||||
|
fz equ zero
|
||||||
|
fzc equ carry+zero
|
||||||
|
fv equ overfl
|
||||||
|
fvz equ overfl+zero
|
||||||
|
fn equ minus
|
||||||
|
fnc equ minus+carry
|
||||||
|
fnz equ minus+zero
|
||||||
|
fnzc equ minus+zero+carry
|
||||||
|
fnv equ minus+overfl
|
||||||
|
|
||||||
|
fao equ break+reserv ;bits always on after PHP, BRK
|
||||||
|
fai equ fao+intdis ;+ forced interrupt disable
|
||||||
|
m8 equ $ff ;8 bit mask
|
||||||
|
m8i equ $ff&~intdis ;8 bit mask - interrupt disable
|
||||||
|
|
||||||
|
;macros to set status
|
||||||
|
push_stat macro ;setting flags in the processor status register
|
||||||
|
lda #\1
|
||||||
|
pha ;use stack to load status
|
||||||
|
endm
|
||||||
|
|
||||||
|
set_stat macro ;setting flags in the processor status register
|
||||||
|
lda #\1
|
||||||
|
pha ;use stack to load status
|
||||||
|
plp
|
||||||
|
endm
|
||||||
|
|
||||||
|
if load_data_direct = 1
|
||||||
|
data
|
||||||
|
else
|
||||||
|
bss ;uninitialized segment, copy of data at end of code!
|
||||||
|
endif
|
||||||
|
org zero_page
|
||||||
|
;BRK, IRQ, NMI test interrupt save
|
||||||
|
irq_a ds 1 ;a register
|
||||||
|
irq_x ds 1 ;x register
|
||||||
|
irq_f ds 1 ;flags
|
||||||
|
nmi_a ds 1 ;a register
|
||||||
|
nmi_x ds 1 ;x register
|
||||||
|
nmi_f ds 1 ;flags
|
||||||
|
|
||||||
|
;fixed stack locations
|
||||||
|
lst_f equ $1fe ;last flags before interrupt
|
||||||
|
lst_a equ $1ff ;last accumulator before interrupt
|
||||||
|
|
||||||
|
org data_segment
|
||||||
|
data_bss
|
||||||
|
;concurrent NMI, IRQ & BRK test result
|
||||||
|
nmi_count ds 1 ;lowest number handled first, $ff = never
|
||||||
|
irq_count ds 1 ;separation-1 = instructions between interrupts
|
||||||
|
brk_count ds 1
|
||||||
|
;expected interrupt mask
|
||||||
|
I_src ds 1 ;bit: 0=BRK, 1=IRQ, 2=NMI
|
||||||
|
data_bss_end
|
||||||
|
|
||||||
|
code
|
||||||
|
org code_segment
|
||||||
|
start cld
|
||||||
|
lda #0 ;clear expected interrupts for 2nd run
|
||||||
|
sta I_src
|
||||||
|
ldx #$ff
|
||||||
|
txs
|
||||||
|
|
||||||
|
; load system vectors
|
||||||
|
if load_data_direct != 1
|
||||||
|
ldx #5
|
||||||
|
ld_vect lda vec_init,x
|
||||||
|
sta vec_bss,x
|
||||||
|
dex
|
||||||
|
bpl ld_vect
|
||||||
|
endif
|
||||||
|
|
||||||
|
; IRQ & NMI test - requires a feedback register
|
||||||
|
if I_drive > 1
|
||||||
|
ERROR ;invalid interrupt drive!
|
||||||
|
endif
|
||||||
|
if NMI_bit < 0
|
||||||
|
if I_drive = 0 ;totem pole (push/pull, 0 -> I_port to force interrupt)
|
||||||
|
I_set macro ibit ;ibit = interrupt bit
|
||||||
|
lda I_port ;turn on interrupt by bit
|
||||||
|
and #$ff-(1<<\1)
|
||||||
|
plp ;set flags
|
||||||
|
pha ;save to verify
|
||||||
|
php
|
||||||
|
sta I_port ;interrupt next instruction plus outbound delay
|
||||||
|
endm
|
||||||
|
I_clr macro ibit ;ibit = interrupt bit
|
||||||
|
lda I_port ;turn off interrupt by bit
|
||||||
|
ora #(1<<ibit)
|
||||||
|
sta I_port
|
||||||
|
endm
|
||||||
|
I_clr IRQ_bit ;turn off IRQ
|
||||||
|
if I_ddr != 0 ;with DDR
|
||||||
|
lda I_ddr ;set DDR for IRQ to enabled
|
||||||
|
ora #(1<<IRQ_bit)
|
||||||
|
sta I_ddr
|
||||||
|
endif
|
||||||
|
else ;open collector, 0 -> I_DDR or I_port to force interrupt
|
||||||
|
if I_ddr != 0 ;with DDR
|
||||||
|
I_set macro ibit ;ibit = interrupt bit
|
||||||
|
lda I_ddr ;turn on interrupt by bit
|
||||||
|
ora #(1<<\1)
|
||||||
|
plp ;set flags
|
||||||
|
pha ;save to verify
|
||||||
|
php
|
||||||
|
sta I_ddr ;interrupt next instruction plus outbound delay
|
||||||
|
endm
|
||||||
|
I_clr macro ibit ;ibit = interrupt bit
|
||||||
|
lda I_ddr ;turn off interrupt by bit
|
||||||
|
and #$ff-(1<<ibit)
|
||||||
|
sta I_ddr
|
||||||
|
endm
|
||||||
|
I_clr IRQ_bit ;turn off IRQ
|
||||||
|
lda I_port ;precharge IRQ
|
||||||
|
and #$ff-(1<<IRQ_bit)
|
||||||
|
sta I_port
|
||||||
|
else ;no DDR
|
||||||
|
I_set macro ibit ;ibit = interrupt bit
|
||||||
|
lda I_port ;turn on interrupt by bit
|
||||||
|
ora #(1<<\1)
|
||||||
|
plp ;set flags
|
||||||
|
pha ;save to verify
|
||||||
|
php
|
||||||
|
sta I_port ;interrupt next instruction plus outbound delay
|
||||||
|
endm
|
||||||
|
I_clr macro ibit ;ibit = interrupt bit
|
||||||
|
lda I_port ;turn off interrupt by bit
|
||||||
|
and #$ff-(1<<ibit)
|
||||||
|
sta I_port
|
||||||
|
endm
|
||||||
|
I_clr IRQ_bit ;turn off IRQ
|
||||||
|
endif
|
||||||
|
endif
|
||||||
|
else
|
||||||
|
if I_drive = 0 ;totem pole (push/pull, 0 -> I_port to force interrupt)
|
||||||
|
I_set macro ibit ;ibit = interrupt bit
|
||||||
|
lda I_port ;turn on interrupt by bit
|
||||||
|
if ibit > 7 ;set both NMI & IRQ
|
||||||
|
and #$ff-(1<<IRQ_bit|1<<NMI_bit)
|
||||||
|
else
|
||||||
|
and #$ff-(1<<\1)
|
||||||
|
endif
|
||||||
|
plp ;set flags
|
||||||
|
pha ;save to verify
|
||||||
|
php
|
||||||
|
sta I_port ;interrupt next instruction plus outbound delay
|
||||||
|
endm
|
||||||
|
I_clr macro ibit ;ibit = interrupt bit
|
||||||
|
lda I_port ;turn off interrupt by bit
|
||||||
|
ora #(1<<ibit)
|
||||||
|
sta I_port
|
||||||
|
endm
|
||||||
|
I_clr IRQ_bit ;turn off IRQ & NMI
|
||||||
|
I_clr NMI_bit
|
||||||
|
if I_ddr != 0 ;with DDR
|
||||||
|
lda I_ddr ;set DDR for IRQ & NMI to enabled
|
||||||
|
ora #(1<<IRQ_bit|1<<NMI_bit)
|
||||||
|
sta I_ddr
|
||||||
|
endif
|
||||||
|
else ;open collector, 0 -> I_DDR or I_port to force interrupt
|
||||||
|
if I_ddr != 0 ;with DDR
|
||||||
|
I_set macro ibit ;ibit = interrupt bit
|
||||||
|
lda I_ddr ;turn on interrupt by bit
|
||||||
|
if ibit > 7 ;set both NMI & IRQ
|
||||||
|
ora #(1<<IRQ_bit|1<<NMI_bit)
|
||||||
|
else
|
||||||
|
ora #(1<<\1)
|
||||||
|
endif
|
||||||
|
plp ;set flags
|
||||||
|
pha ;save to verify
|
||||||
|
php
|
||||||
|
sta I_ddr ;interrupt next instruction plus outbound delay
|
||||||
|
endm
|
||||||
|
I_clr macro ibit ;ibit = interrupt bit
|
||||||
|
lda I_ddr ;turn off interrupt by bit
|
||||||
|
and #$ff-(1<<ibit)
|
||||||
|
sta I_ddr
|
||||||
|
endm
|
||||||
|
I_clr IRQ_bit ;turn off IRQ & NMI
|
||||||
|
I_clr NMI_bit
|
||||||
|
lda I_port ;precharge IRQ & NMI
|
||||||
|
and #$ff-(1<<IRQ_bit|1<<NMI_bit)
|
||||||
|
sta I_port
|
||||||
|
else ;no DDR
|
||||||
|
I_set macro ibit ;ibit = interrupt bit
|
||||||
|
lda I_port ;turn on interrupt by bit
|
||||||
|
if ibit > 7 ;set both NMI & IRQ
|
||||||
|
ora #(1<<IRQ_bit|1<<NMI_bit)
|
||||||
|
else
|
||||||
|
ora #(1<<\1)
|
||||||
|
endif
|
||||||
|
plp ;set flags
|
||||||
|
pha ;save to verify
|
||||||
|
php
|
||||||
|
sta I_port ;interrupt next instruction plus outbound delay
|
||||||
|
endm
|
||||||
|
I_clr macro ibit ;ibit = interrupt bit
|
||||||
|
lda I_port ;turn off interrupt by bit
|
||||||
|
and #$ff-(1<<ibit)
|
||||||
|
sta I_port
|
||||||
|
endm
|
||||||
|
I_clr IRQ_bit ;turn off IRQ & NMI
|
||||||
|
I_clr NMI_bit
|
||||||
|
endif
|
||||||
|
endif
|
||||||
|
endif
|
||||||
|
|
||||||
|
; IRQ integrity test
|
||||||
|
; test for clear flags seen in IRQ vector
|
||||||
|
lda #2 ;set expected interrupt source IRQ
|
||||||
|
sta I_src
|
||||||
|
push_stat 0
|
||||||
|
I_set IRQ_bit
|
||||||
|
nop ;allow 6 cycles for interrupt to trip
|
||||||
|
nop
|
||||||
|
nop
|
||||||
|
lda I_src
|
||||||
|
trap_ne ;IRQ timeout
|
||||||
|
tsx
|
||||||
|
cpx #$ff-2 ;original accu & flags remain on stack
|
||||||
|
trap_ne ;returned SP
|
||||||
|
lda irq_f ;flags seen in IRQ vector
|
||||||
|
if D_clear = 1
|
||||||
|
and #decmode
|
||||||
|
trap_ne ;D-flag not cleared
|
||||||
|
lda irq_f
|
||||||
|
eor lst_f ;turn off unchanged bits
|
||||||
|
and #m8-fai-decmode ;mask untested other flags
|
||||||
|
trap_ne ;other flags (N,V,Z,C) changed
|
||||||
|
else
|
||||||
|
eor lst_f ;turn off unchanged bits
|
||||||
|
and #m8-fai ;mask untested other flags
|
||||||
|
trap_ne ;other flags (N,V,Z,C,D) changed
|
||||||
|
endif
|
||||||
|
ldx #$ff ;reset stack pointer
|
||||||
|
txs
|
||||||
|
; test all other registers
|
||||||
|
ldx #'I'
|
||||||
|
ldy #'R'
|
||||||
|
lda #2 ;set expected interrupt source IRQ
|
||||||
|
sta I_src
|
||||||
|
push_stat 0
|
||||||
|
I_set IRQ_bit
|
||||||
|
dey ;Y count will fail, if instructions are skipped
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
php ;check processor status later
|
||||||
|
cpx #('I'+1) ;returned registers OK?
|
||||||
|
trap_ne ;returned X
|
||||||
|
cpy #('R'-7)
|
||||||
|
trap_ne ;returned Y
|
||||||
|
cmp #'Q'
|
||||||
|
trap_ne ;returned A
|
||||||
|
tsx
|
||||||
|
cpx #$ff-3
|
||||||
|
trap_ne ;returned SP
|
||||||
|
pla ;flags
|
||||||
|
eor lst_f
|
||||||
|
and #$ff-fnz ;ignore flags changed by dey
|
||||||
|
trap_ne ;returned flags
|
||||||
|
lda irq_a ;accu seen in IRQ vector
|
||||||
|
cmp lst_a
|
||||||
|
trap_ne ;IRQ A received
|
||||||
|
ldx #$ff ;reset stack pointer
|
||||||
|
txs
|
||||||
|
; repeat with reversed registers
|
||||||
|
ldx #$ff-'I'
|
||||||
|
ldy #$ff-'R'
|
||||||
|
lda #2 ;set expected interrupt source IRQ
|
||||||
|
sta I_src
|
||||||
|
push_stat $ff-intdis
|
||||||
|
I_set IRQ_bit
|
||||||
|
dey ;Y count will fail, if instructions are skipped
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
php ;check processor status later
|
||||||
|
cpx #($ff-'I'+1) ;returned registers OK?
|
||||||
|
trap_ne ;returned X
|
||||||
|
cpy #($ff-'R'-7)
|
||||||
|
trap_ne ;returned Y
|
||||||
|
cmp #'Q'
|
||||||
|
trap_ne ;returned A
|
||||||
|
tsx
|
||||||
|
cpx #$ff-3
|
||||||
|
trap_ne ;returned SP
|
||||||
|
pla ;flags
|
||||||
|
eor lst_f
|
||||||
|
and #$ff-fnz ;ignore flags changed by dey
|
||||||
|
trap_ne ;returned flags
|
||||||
|
lda irq_a ;accu seen in IRQ vector
|
||||||
|
cmp lst_a
|
||||||
|
trap_ne ;IRQ A received
|
||||||
|
ldx #$ff ;reset stack pointer
|
||||||
|
txs
|
||||||
|
; retest for set flags seen in IRQ vector
|
||||||
|
lda #2 ;set expected interrupt source IRQ
|
||||||
|
sta I_src
|
||||||
|
push_stat $ff-intdis
|
||||||
|
I_set IRQ_bit
|
||||||
|
nop ;allow 6 cycles for interrupt to trip
|
||||||
|
nop
|
||||||
|
nop
|
||||||
|
lda I_src
|
||||||
|
trap_ne ;IRQ timeout
|
||||||
|
tsx
|
||||||
|
cpx #$ff-2 ;original accu & flags remain on stack
|
||||||
|
trap_ne ;returned SP
|
||||||
|
lda irq_f ;flags seen in IRQ vector
|
||||||
|
if D_clear = 1
|
||||||
|
and #decmode
|
||||||
|
trap_ne ;D-flag not cleared
|
||||||
|
lda irq_f
|
||||||
|
eor lst_f ;turn off unchanged bits
|
||||||
|
and #m8-fai-decmode ;mask untested other flags
|
||||||
|
trap_ne ;other flags (N,V,Z,C) changed
|
||||||
|
else
|
||||||
|
eor lst_f ;turn off unchanged bits
|
||||||
|
and #m8-fai ;mask untested other flags
|
||||||
|
trap_ne ;other flags (N,V,Z,C,D) changed
|
||||||
|
endif
|
||||||
|
ldx #$ff ;reset stack pointer
|
||||||
|
txs
|
||||||
|
|
||||||
|
; BRK integrity test
|
||||||
|
; test for clear flags seen in IRQ vector
|
||||||
|
lda #1 ;set expected interrupt source BRK
|
||||||
|
sta I_src
|
||||||
|
set_stat 0
|
||||||
|
pha ;save entry registers
|
||||||
|
php
|
||||||
|
brk
|
||||||
|
nop ;should not be executed
|
||||||
|
nop ;allow 6 cycles for interrupt to trip
|
||||||
|
nop
|
||||||
|
nop
|
||||||
|
lda I_src
|
||||||
|
trap_ne ;IRQ timeout
|
||||||
|
tsx
|
||||||
|
cpx #$ff-2 ;original accu & flags remain on stack
|
||||||
|
trap_ne ;returned SP
|
||||||
|
lda irq_f ;flags seen in IRQ vector
|
||||||
|
if D_clear = 1
|
||||||
|
and #decmode
|
||||||
|
trap_ne ;D-flag not cleared
|
||||||
|
lda irq_f
|
||||||
|
eor lst_f ;turn off unchanged bits
|
||||||
|
and #m8-fai-decmode ;mask untested other flags
|
||||||
|
trap_ne ;other flags (N,V,Z,C) changed
|
||||||
|
else
|
||||||
|
eor lst_f ;turn off unchanged bits
|
||||||
|
and #m8-fai ;mask untested other flags
|
||||||
|
trap_ne ;other flags (N,V,Z,C,D) changed
|
||||||
|
endif
|
||||||
|
ldx #$ff ;reset stack pointer
|
||||||
|
txs
|
||||||
|
; test all other registers
|
||||||
|
ldx #'B'
|
||||||
|
ldy #'R'
|
||||||
|
lda #1 ;set expected interrupt source BRK
|
||||||
|
sta I_src
|
||||||
|
set_stat 0
|
||||||
|
pha ;save entry
|
||||||
|
php
|
||||||
|
brk
|
||||||
|
dey ;should not be executed
|
||||||
|
dey ;Y count will fail, if return address is wrong
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
php ;check processor status later
|
||||||
|
cpx #('B'+1) ;returned registers OK?
|
||||||
|
trap_ne ;returned X
|
||||||
|
cpy #('R'-7)
|
||||||
|
trap_ne ;returned Y
|
||||||
|
cmp #'K'
|
||||||
|
trap_ne ;returned A
|
||||||
|
tsx
|
||||||
|
cpx #$ff-3
|
||||||
|
trap_ne ;returned SP
|
||||||
|
pla ;flags
|
||||||
|
eor lst_f
|
||||||
|
and #$ff-fnz ;ignore flags changed by dey
|
||||||
|
trap_ne ;returned flags
|
||||||
|
lda irq_a ;accu seen in IRQ vector
|
||||||
|
cmp lst_a
|
||||||
|
trap_ne ;IRQ A received
|
||||||
|
ldx #$ff ;reset stack pointer
|
||||||
|
txs
|
||||||
|
; repeat with reversed registers
|
||||||
|
ldx #$ff-'B'
|
||||||
|
ldy #$ff-'R'
|
||||||
|
lda #1 ;set expected interrupt source BRK
|
||||||
|
sta I_src
|
||||||
|
set_stat $ff
|
||||||
|
pha ;save entry registers
|
||||||
|
php
|
||||||
|
brk
|
||||||
|
dey ;should not be executed
|
||||||
|
dey ;Y count will fail, if return address is wrong
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
php ;check processor status later
|
||||||
|
cpx #($ff-'B'+1) ;returned registers OK?
|
||||||
|
trap_ne ;returned X
|
||||||
|
cpy #($ff-'R'-7)
|
||||||
|
trap_ne ;returned Y
|
||||||
|
cmp #'K'
|
||||||
|
trap_ne ;returned A
|
||||||
|
tsx
|
||||||
|
cpx #$ff-3
|
||||||
|
trap_ne ;returned SP
|
||||||
|
pla ;flags
|
||||||
|
eor lst_f
|
||||||
|
and #$ff-fnz ;ignore flags changed by dey
|
||||||
|
trap_ne ;returned flags
|
||||||
|
lda irq_a ;accu seen in IRQ vector
|
||||||
|
cmp lst_a
|
||||||
|
trap_ne ;IRQ A received
|
||||||
|
ldx #$ff ;reset stack pointer
|
||||||
|
txs
|
||||||
|
; retest for set flags seen in IRQ vector
|
||||||
|
lda #1 ;set expected interrupt source BRK
|
||||||
|
sta I_src
|
||||||
|
set_stat $ff
|
||||||
|
pha ;save entry registers
|
||||||
|
php
|
||||||
|
brk
|
||||||
|
nop ;should not be executed
|
||||||
|
nop ;allow 6 cycles for interrupt to trip
|
||||||
|
nop
|
||||||
|
nop
|
||||||
|
lda I_src
|
||||||
|
trap_ne ;IRQ timeout
|
||||||
|
tsx
|
||||||
|
cpx #$ff-2 ;original accu & flags remain on stack
|
||||||
|
trap_ne ;returned SP
|
||||||
|
lda irq_f ;flags seen in IRQ vector
|
||||||
|
if D_clear = 1
|
||||||
|
and #decmode
|
||||||
|
trap_ne ;D-flag not cleared
|
||||||
|
lda irq_f
|
||||||
|
eor lst_f ;turn off unchanged bits
|
||||||
|
and #m8-fai-decmode ;mask untested other flags
|
||||||
|
trap_ne ;other flags (N,V,Z,C) changed
|
||||||
|
else
|
||||||
|
eor lst_f ;turn off unchanged bits
|
||||||
|
and #m8-fai ;mask untested other flags
|
||||||
|
trap_ne ;other flags (N,V,Z,C,D) changed
|
||||||
|
endif
|
||||||
|
ldx #$ff ;reset stack pointer
|
||||||
|
txs
|
||||||
|
|
||||||
|
if NMI_bit < 0
|
||||||
|
; test IRQ with interrupts disabled
|
||||||
|
ldx #0
|
||||||
|
lda #0
|
||||||
|
sta I_src
|
||||||
|
push_stat intdis
|
||||||
|
I_set IRQ_bit ;IRQ pending
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
ldx #0
|
||||||
|
lda #2 ;now re-enable IRQ
|
||||||
|
sta I_src
|
||||||
|
cli
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
lda I_src ;test IRQ done?
|
||||||
|
trap_ne
|
||||||
|
ldx #$ff ;purge stack
|
||||||
|
txs
|
||||||
|
|
||||||
|
ldx #0 ;now overlap IRQ & BRK
|
||||||
|
lda #3
|
||||||
|
sta I_src
|
||||||
|
lda #$ff ;measure timing
|
||||||
|
sta nmi_count
|
||||||
|
sta irq_count
|
||||||
|
sta brk_count
|
||||||
|
push_stat 0
|
||||||
|
I_set IRQ_bit ;trigger IRQ
|
||||||
|
else
|
||||||
|
; NMI integrity test
|
||||||
|
; test for clear flags seen in NMI vector
|
||||||
|
lda #4 ;set expected interrupt source NMI
|
||||||
|
sta I_src
|
||||||
|
push_stat 0
|
||||||
|
I_set NMI_bit
|
||||||
|
nop ;allow 6 cycles for interrupt to trip
|
||||||
|
nop
|
||||||
|
nop
|
||||||
|
lda I_src
|
||||||
|
trap_ne ;NMI timeout
|
||||||
|
tsx
|
||||||
|
cpx #$ff-2 ;original accu & flags remain on stack
|
||||||
|
trap_ne ;returned SP
|
||||||
|
lda nmi_f ;flags seen in NMI vector
|
||||||
|
if D_clear = 1
|
||||||
|
and #decmode
|
||||||
|
trap_ne ;D-flag not cleared
|
||||||
|
lda nmi_f
|
||||||
|
eor lst_f ;turn off unchanged bits
|
||||||
|
and #m8-fai-decmode ;mask untested other flags
|
||||||
|
trap_ne ;other flags (N,V,Z,C) changed
|
||||||
|
else
|
||||||
|
eor lst_f ;turn off unchanged bits
|
||||||
|
and #m8-fai ;mask untested other flags
|
||||||
|
trap_ne ;other flags (N,V,Z,C,D) changed
|
||||||
|
endif
|
||||||
|
ldx #$ff ;reset stack pointer
|
||||||
|
txs
|
||||||
|
; test all other registers
|
||||||
|
ldx #'N'
|
||||||
|
ldy #'M'
|
||||||
|
lda #4 ;set expected interrupt source NMI
|
||||||
|
sta I_src
|
||||||
|
push_stat 0
|
||||||
|
I_set NMI_bit
|
||||||
|
dey ;Y count will fail, if instructions are skipped
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
php ;check processor status later
|
||||||
|
cpx #('N'+1) ;returned registers OK?
|
||||||
|
trap_ne ;returned X
|
||||||
|
cpy #('M'-7)
|
||||||
|
trap_ne ;returned Y
|
||||||
|
cmp #'I'
|
||||||
|
trap_ne ;returned A
|
||||||
|
tsx
|
||||||
|
cpx #$ff-3
|
||||||
|
trap_ne ;returned SP
|
||||||
|
pla ;flags
|
||||||
|
eor lst_f
|
||||||
|
and #$ff-fnz ;ignore flags changed by dey
|
||||||
|
trap_ne ;returned flags
|
||||||
|
lda nmi_a ;accu seen in NMI vector
|
||||||
|
cmp lst_a
|
||||||
|
trap_ne ;NMI A received
|
||||||
|
ldx #$ff ;reset stack pointer
|
||||||
|
txs
|
||||||
|
; repeat with reversed registers
|
||||||
|
ldx #$ff-'N'
|
||||||
|
ldy #$ff-'M'
|
||||||
|
lda #4 ;set expected interrupt source NMI
|
||||||
|
sta I_src
|
||||||
|
push_stat $ff-intdis
|
||||||
|
I_set NMI_bit
|
||||||
|
dey ;Y count will fail, if instructions are skipped
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
php ;check processor status later
|
||||||
|
cpx #($ff-'N'+1) ;returned registers OK?
|
||||||
|
trap_ne ;returned X
|
||||||
|
cpy #($ff-'M'-7)
|
||||||
|
trap_ne ;returned Y
|
||||||
|
cmp #'I'
|
||||||
|
trap_ne ;returned A
|
||||||
|
tsx
|
||||||
|
cpx #$ff-3
|
||||||
|
trap_ne ;returned SP
|
||||||
|
pla ;flags
|
||||||
|
eor lst_f
|
||||||
|
and #$ff-fnz ;ignore flags changed by dey
|
||||||
|
trap_ne ;returned flags
|
||||||
|
lda nmi_a ;accu seen in NMI vector
|
||||||
|
cmp lst_a
|
||||||
|
trap_ne ;NMI A received
|
||||||
|
ldx #$ff ;reset stack pointer
|
||||||
|
txs
|
||||||
|
; retest for set flags seen in NMI vector
|
||||||
|
lda #4 ;set expected interrupt source NMI
|
||||||
|
sta I_src
|
||||||
|
push_stat $ff-intdis
|
||||||
|
I_set NMI_bit
|
||||||
|
nop ;allow 6 cycles for interrupt to trip
|
||||||
|
nop
|
||||||
|
nop
|
||||||
|
lda I_src
|
||||||
|
trap_ne ;NMI timeout
|
||||||
|
tsx
|
||||||
|
cpx #$ff-2 ;original accu & flags remain on stack
|
||||||
|
trap_ne ;returned SP
|
||||||
|
lda nmi_f ;flags seen in NMI vector
|
||||||
|
if D_clear = 1
|
||||||
|
and #decmode
|
||||||
|
trap_ne ;D-flag not cleared
|
||||||
|
lda nmi_f
|
||||||
|
eor lst_f ;turn off unchanged bits
|
||||||
|
and #m8-fai-decmode ;mask untested other flags
|
||||||
|
trap_ne ;other flags (N,V,Z,C) changed
|
||||||
|
else
|
||||||
|
eor lst_f ;turn off unchanged bits
|
||||||
|
and #m8-fai ;mask untested other flags
|
||||||
|
trap_ne ;other flags (N,V,Z,C,D) changed
|
||||||
|
endif
|
||||||
|
ldx #$ff ;reset stack pointer
|
||||||
|
txs
|
||||||
|
|
||||||
|
; test IRQ & NMI with interrupts disabled
|
||||||
|
ldx #0
|
||||||
|
lda #4 ;set expected interrupt NMI only
|
||||||
|
sta I_src
|
||||||
|
push_stat intdis
|
||||||
|
I_set 8 ;both interrupts pending
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
lda I_src ;test NMI done?
|
||||||
|
trap_ne
|
||||||
|
ldx #0
|
||||||
|
lda #2 ;now re-enable IRQ
|
||||||
|
sta I_src
|
||||||
|
cli
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
lda I_src ;test IRQ done?
|
||||||
|
trap_ne
|
||||||
|
ldx #$ff ;purge stack
|
||||||
|
txs
|
||||||
|
|
||||||
|
;test overlapping NMI, IRQ & BRK
|
||||||
|
ldx #0
|
||||||
|
lda #7
|
||||||
|
sta I_src
|
||||||
|
lda #$ff ;measure timing
|
||||||
|
sta nmi_count
|
||||||
|
sta irq_count
|
||||||
|
sta brk_count
|
||||||
|
push_stat 0
|
||||||
|
I_set 8 ;trigger NMI + IRQ
|
||||||
|
endif
|
||||||
|
brk
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
inx
|
||||||
|
lda I_src ;test all done?
|
||||||
|
;may fail due to a bug on a real NMOS 6502 - NMI could mask BRK
|
||||||
|
trap_ne ;lost an interrupt
|
||||||
|
|
||||||
|
; S U C C E S S ************************************************
|
||||||
|
; -------------
|
||||||
|
success ;if you get here everything went well
|
||||||
|
; -------------
|
||||||
|
; S U C C E S S ************************************************
|
||||||
|
; check data_segment +0 to +2 for sequence of concurrent interrupts
|
||||||
|
; e.g. 0x200 = NMI, 0x201 = IRQ, 0x202 = BRK, lower values = earlier
|
||||||
|
|
||||||
|
; manual tests for the WAI opcode of the 65c02
|
||||||
|
|
||||||
|
wai macro
|
||||||
|
db $cb ;WAI opcode
|
||||||
|
endm
|
||||||
|
|
||||||
|
; requires single step operation
|
||||||
|
; set PC to the 1st instruction of the test
|
||||||
|
; step to the WAI opcode, then manually tie the IRQ input low
|
||||||
|
; continue to step until you see the PC advance, then remove IRQ
|
||||||
|
; allow the routine to complete.
|
||||||
|
|
||||||
|
; WAI with interrupts disabled
|
||||||
|
ldx #$ff
|
||||||
|
txs
|
||||||
|
ldy #3
|
||||||
|
lda #0 ;IRQ not expected
|
||||||
|
sta I_src
|
||||||
|
set_stat intdis
|
||||||
|
wai
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
trap_ne ;skipped opcodes!
|
||||||
|
|
||||||
|
success
|
||||||
|
|
||||||
|
; WAI with interrupts enabled
|
||||||
|
ldx #$ff
|
||||||
|
txs
|
||||||
|
ldy #7
|
||||||
|
lda #2 ;IRQ expected
|
||||||
|
sta I_src
|
||||||
|
set_stat 0
|
||||||
|
wai
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
lda I_src
|
||||||
|
trap_ne ;IRQ vector not called
|
||||||
|
dey
|
||||||
|
trap_ne ;skipped opcodes!
|
||||||
|
|
||||||
|
success
|
||||||
|
|
||||||
|
; manual test for the STP opcode of the 65c02
|
||||||
|
|
||||||
|
stp macro
|
||||||
|
db $db ;STP opcode
|
||||||
|
endm
|
||||||
|
|
||||||
|
; set PC to the 1st instruction of the test, then run
|
||||||
|
nop
|
||||||
|
nop
|
||||||
|
stp ;expected end of operation
|
||||||
|
nop
|
||||||
|
nop
|
||||||
|
trap ;overran STP
|
||||||
|
|
||||||
|
;end of manual tests
|
||||||
|
|
||||||
|
;---------------------------------------------------------------------------
|
||||||
|
;trap in case of unexpected IRQ, NMI, BRK, RESET - IRQ, NMI, BRK test target
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
nmi_trap
|
||||||
|
if NMI_bit < 0
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
trap ;unexpected NMI
|
||||||
|
else
|
||||||
|
php ;either SP or Y count will fail, if we do not hit
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
sta nmi_a ;save regsters during NMI
|
||||||
|
stx nmi_x
|
||||||
|
pla
|
||||||
|
pha
|
||||||
|
sta nmi_f
|
||||||
|
lda I_src ;NMI expected?
|
||||||
|
and #4
|
||||||
|
trap_eq ;unexpexted NMI - check stack for conditions
|
||||||
|
pla ;test I-flag was set
|
||||||
|
pha
|
||||||
|
and #intdis
|
||||||
|
trap_eq ;I-flag not set
|
||||||
|
pla ;return with other flags reversed
|
||||||
|
eor #m8-fai-decmode
|
||||||
|
pha
|
||||||
|
tsx
|
||||||
|
lda $102,x ;test break on stack
|
||||||
|
and #break
|
||||||
|
trap_ne ;unexpected B-flag! - this may fail on a real 6502
|
||||||
|
;due to a hardware bug on concurrent BRK & NMI
|
||||||
|
lda I_src ;mark expected NMI has occured
|
||||||
|
and #$ff-4
|
||||||
|
sta I_src
|
||||||
|
I_clr NMI_bit
|
||||||
|
ldx nmi_x
|
||||||
|
inx
|
||||||
|
stx nmi_count
|
||||||
|
lda #'I' ;mark (NM)I
|
||||||
|
plp ;should be reversed by rti
|
||||||
|
rti
|
||||||
|
endif
|
||||||
|
|
||||||
|
res_trap
|
||||||
|
trap ;unexpected RESET
|
||||||
|
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
irq_trap ;BRK & IRQ test
|
||||||
|
php ;either SP or Y count will fail, if we do not hit
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
dey
|
||||||
|
sta irq_a ;save registers during IRQ/BRK
|
||||||
|
stx irq_x
|
||||||
|
pla
|
||||||
|
pha
|
||||||
|
sta irq_f
|
||||||
|
lda I_src ;IRQ expected?
|
||||||
|
and #3
|
||||||
|
trap_eq ;unexpexted IRQ/BRK - check stack for conditions
|
||||||
|
pla ;test I-flag was set
|
||||||
|
pha
|
||||||
|
and #intdis
|
||||||
|
trap_eq ;I-flag not set
|
||||||
|
pla ;return with other flags reversed
|
||||||
|
eor #m8-fai-decmode
|
||||||
|
pha
|
||||||
|
tsx
|
||||||
|
lda $102,x ;test break on stack
|
||||||
|
and #break
|
||||||
|
bne brk_trap
|
||||||
|
|
||||||
|
lda I_src ;IRQ expected?
|
||||||
|
and #2
|
||||||
|
trap_eq ;unexpexted IRQ - check stack for conditions
|
||||||
|
lda I_src ;mark expected IRQ has occured
|
||||||
|
and #$ff-2
|
||||||
|
sta I_src
|
||||||
|
I_clr IRQ_bit
|
||||||
|
ldx irq_x
|
||||||
|
inx
|
||||||
|
stx irq_count
|
||||||
|
lda #'Q' ;mark (IR)Q
|
||||||
|
plp ;should be reversed by rti
|
||||||
|
rti
|
||||||
|
|
||||||
|
brk_trap
|
||||||
|
lda I_src ;break expected?
|
||||||
|
and #1
|
||||||
|
trap_eq ;unexpected BRK - check stack for conditions
|
||||||
|
lda I_src ;mark expected BRK has occured
|
||||||
|
and #$ff-1
|
||||||
|
sta I_src
|
||||||
|
ldx irq_x
|
||||||
|
inx
|
||||||
|
stx brk_count
|
||||||
|
lda irq_a
|
||||||
|
lda #'K' ;mark (BR)K
|
||||||
|
plp ;should be reversed by rti
|
||||||
|
rti
|
||||||
|
|
||||||
|
|
||||||
|
;system vectors
|
||||||
|
if (load_data_direct = 1)
|
||||||
|
org $fffa
|
||||||
|
dw nmi_trap
|
||||||
|
dw res_trap
|
||||||
|
dw irq_trap
|
||||||
|
else
|
||||||
|
vec_init
|
||||||
|
vec_bss equ $fffa
|
||||||
|
dw nmi_trap
|
||||||
|
dw res_trap
|
||||||
|
dw irq_trap
|
||||||
|
endif
|
||||||
|
|
||||||
|
end start
|
||||||
|
|
||||||
|
|
File diff suppressed because it is too large
Load Diff
|
@ -0,0 +1,674 @@
|
||||||
|
GNU GENERAL PUBLIC LICENSE
|
||||||
|
Version 3, 29 June 2007
|
||||||
|
|
||||||
|
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
|
||||||
|
Everyone is permitted to copy and distribute verbatim copies
|
||||||
|
of this license document, but changing it is not allowed.
|
||||||
|
|
||||||
|
Preamble
|
||||||
|
|
||||||
|
The GNU General Public License is a free, copyleft license for
|
||||||
|
software and other kinds of works.
|
||||||
|
|
||||||
|
The licenses for most software and other practical works are designed
|
||||||
|
to take away your freedom to share and change the works. By contrast,
|
||||||
|
the GNU General Public License is intended to guarantee your freedom to
|
||||||
|
share and change all versions of a program--to make sure it remains free
|
||||||
|
software for all its users. We, the Free Software Foundation, use the
|
||||||
|
GNU General Public License for most of our software; it applies also to
|
||||||
|
any other work released this way by its authors. You can apply it to
|
||||||
|
your programs, too.
|
||||||
|
|
||||||
|
When we speak of free software, we are referring to freedom, not
|
||||||
|
price. Our General Public Licenses are designed to make sure that you
|
||||||
|
have the freedom to distribute copies of free software (and charge for
|
||||||
|
them if you wish), that you receive source code or can get it if you
|
||||||
|
want it, that you can change the software or use pieces of it in new
|
||||||
|
free programs, and that you know you can do these things.
|
||||||
|
|
||||||
|
To protect your rights, we need to prevent others from denying you
|
||||||
|
these rights or asking you to surrender the rights. Therefore, you have
|
||||||
|
certain responsibilities if you distribute copies of the software, or if
|
||||||
|
you modify it: responsibilities to respect the freedom of others.
|
||||||
|
|
||||||
|
For example, if you distribute copies of such a program, whether
|
||||||
|
gratis or for a fee, you must pass on to the recipients the same
|
||||||
|
freedoms that you received. You must make sure that they, too, receive
|
||||||
|
or can get the source code. And you must show them these terms so they
|
||||||
|
know their rights.
|
||||||
|
|
||||||
|
Developers that use the GNU GPL protect your rights with two steps:
|
||||||
|
(1) assert copyright on the software, and (2) offer you this License
|
||||||
|
giving you legal permission to copy, distribute and/or modify it.
|
||||||
|
|
||||||
|
For the developers' and authors' protection, the GPL clearly explains
|
||||||
|
that there is no warranty for this free software. For both users' and
|
||||||
|
authors' sake, the GPL requires that modified versions be marked as
|
||||||
|
changed, so that their problems will not be attributed erroneously to
|
||||||
|
authors of previous versions.
|
||||||
|
|
||||||
|
Some devices are designed to deny users access to install or run
|
||||||
|
modified versions of the software inside them, although the manufacturer
|
||||||
|
can do so. This is fundamentally incompatible with the aim of
|
||||||
|
protecting users' freedom to change the software. The systematic
|
||||||
|
pattern of such abuse occurs in the area of products for individuals to
|
||||||
|
use, which is precisely where it is most unacceptable. Therefore, we
|
||||||
|
have designed this version of the GPL to prohibit the practice for those
|
||||||
|
products. If such problems arise substantially in other domains, we
|
||||||
|
stand ready to extend this provision to those domains in future versions
|
||||||
|
of the GPL, as needed to protect the freedom of users.
|
||||||
|
|
||||||
|
Finally, every program is threatened constantly by software patents.
|
||||||
|
States should not allow patents to restrict development and use of
|
||||||
|
software on general-purpose computers, but in those that do, we wish to
|
||||||
|
avoid the special danger that patents applied to a free program could
|
||||||
|
make it effectively proprietary. To prevent this, the GPL assures that
|
||||||
|
patents cannot be used to render the program non-free.
|
||||||
|
|
||||||
|
The precise terms and conditions for copying, distribution and
|
||||||
|
modification follow.
|
||||||
|
|
||||||
|
TERMS AND CONDITIONS
|
||||||
|
|
||||||
|
0. Definitions.
|
||||||
|
|
||||||
|
"This License" refers to version 3 of the GNU General Public License.
|
||||||
|
|
||||||
|
"Copyright" also means copyright-like laws that apply to other kinds of
|
||||||
|
works, such as semiconductor masks.
|
||||||
|
|
||||||
|
"The Program" refers to any copyrightable work licensed under this
|
||||||
|
License. Each licensee is addressed as "you". "Licensees" and
|
||||||
|
"recipients" may be individuals or organizations.
|
||||||
|
|
||||||
|
To "modify" a work means to copy from or adapt all or part of the work
|
||||||
|
in a fashion requiring copyright permission, other than the making of an
|
||||||
|
exact copy. The resulting work is called a "modified version" of the
|
||||||
|
earlier work or a work "based on" the earlier work.
|
||||||
|
|
||||||
|
A "covered work" means either the unmodified Program or a work based
|
||||||
|
on the Program.
|
||||||
|
|
||||||
|
To "propagate" a work means to do anything with it that, without
|
||||||
|
permission, would make you directly or secondarily liable for
|
||||||
|
infringement under applicable copyright law, except executing it on a
|
||||||
|
computer or modifying a private copy. Propagation includes copying,
|
||||||
|
distribution (with or without modification), making available to the
|
||||||
|
public, and in some countries other activities as well.
|
||||||
|
|
||||||
|
To "convey" a work means any kind of propagation that enables other
|
||||||
|
parties to make or receive copies. Mere interaction with a user through
|
||||||
|
a computer network, with no transfer of a copy, is not conveying.
|
||||||
|
|
||||||
|
An interactive user interface displays "Appropriate Legal Notices"
|
||||||
|
to the extent that it includes a convenient and prominently visible
|
||||||
|
feature that (1) displays an appropriate copyright notice, and (2)
|
||||||
|
tells the user that there is no warranty for the work (except to the
|
||||||
|
extent that warranties are provided), that licensees may convey the
|
||||||
|
work under this License, and how to view a copy of this License. If
|
||||||
|
the interface presents a list of user commands or options, such as a
|
||||||
|
menu, a prominent item in the list meets this criterion.
|
||||||
|
|
||||||
|
1. Source Code.
|
||||||
|
|
||||||
|
The "source code" for a work means the preferred form of the work
|
||||||
|
for making modifications to it. "Object code" means any non-source
|
||||||
|
form of a work.
|
||||||
|
|
||||||
|
A "Standard Interface" means an interface that either is an official
|
||||||
|
standard defined by a recognized standards body, or, in the case of
|
||||||
|
interfaces specified for a particular programming language, one that
|
||||||
|
is widely used among developers working in that language.
|
||||||
|
|
||||||
|
The "System Libraries" of an executable work include anything, other
|
||||||
|
than the work as a whole, that (a) is included in the normal form of
|
||||||
|
packaging a Major Component, but which is not part of that Major
|
||||||
|
Component, and (b) serves only to enable use of the work with that
|
||||||
|
Major Component, or to implement a Standard Interface for which an
|
||||||
|
implementation is available to the public in source code form. A
|
||||||
|
"Major Component", in this context, means a major essential component
|
||||||
|
(kernel, window system, and so on) of the specific operating system
|
||||||
|
(if any) on which the executable work runs, or a compiler used to
|
||||||
|
produce the work, or an object code interpreter used to run it.
|
||||||
|
|
||||||
|
The "Corresponding Source" for a work in object code form means all
|
||||||
|
the source code needed to generate, install, and (for an executable
|
||||||
|
work) run the object code and to modify the work, including scripts to
|
||||||
|
control those activities. However, it does not include the work's
|
||||||
|
System Libraries, or general-purpose tools or generally available free
|
||||||
|
programs which are used unmodified in performing those activities but
|
||||||
|
which are not part of the work. For example, Corresponding Source
|
||||||
|
includes interface definition files associated with source files for
|
||||||
|
the work, and the source code for shared libraries and dynamically
|
||||||
|
linked subprograms that the work is specifically designed to require,
|
||||||
|
such as by intimate data communication or control flow between those
|
||||||
|
subprograms and other parts of the work.
|
||||||
|
|
||||||
|
The Corresponding Source need not include anything that users
|
||||||
|
can regenerate automatically from other parts of the Corresponding
|
||||||
|
Source.
|
||||||
|
|
||||||
|
The Corresponding Source for a work in source code form is that
|
||||||
|
same work.
|
||||||
|
|
||||||
|
2. Basic Permissions.
|
||||||
|
|
||||||
|
All rights granted under this License are granted for the term of
|
||||||
|
copyright on the Program, and are irrevocable provided the stated
|
||||||
|
conditions are met. This License explicitly affirms your unlimited
|
||||||
|
permission to run the unmodified Program. The output from running a
|
||||||
|
covered work is covered by this License only if the output, given its
|
||||||
|
content, constitutes a covered work. This License acknowledges your
|
||||||
|
rights of fair use or other equivalent, as provided by copyright law.
|
||||||
|
|
||||||
|
You may make, run and propagate covered works that you do not
|
||||||
|
convey, without conditions so long as your license otherwise remains
|
||||||
|
in force. You may convey covered works to others for the sole purpose
|
||||||
|
of having them make modifications exclusively for you, or provide you
|
||||||
|
with facilities for running those works, provided that you comply with
|
||||||
|
the terms of this License in conveying all material for which you do
|
||||||
|
not control copyright. Those thus making or running the covered works
|
||||||
|
for you must do so exclusively on your behalf, under your direction
|
||||||
|
and control, on terms that prohibit them from making any copies of
|
||||||
|
your copyrighted material outside their relationship with you.
|
||||||
|
|
||||||
|
Conveying under any other circumstances is permitted solely under
|
||||||
|
the conditions stated below. Sublicensing is not allowed; section 10
|
||||||
|
makes it unnecessary.
|
||||||
|
|
||||||
|
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
|
||||||
|
|
||||||
|
No covered work shall be deemed part of an effective technological
|
||||||
|
measure under any applicable law fulfilling obligations under article
|
||||||
|
11 of the WIPO copyright treaty adopted on 20 December 1996, or
|
||||||
|
similar laws prohibiting or restricting circumvention of such
|
||||||
|
measures.
|
||||||
|
|
||||||
|
When you convey a covered work, you waive any legal power to forbid
|
||||||
|
circumvention of technological measures to the extent such circumvention
|
||||||
|
is effected by exercising rights under this License with respect to
|
||||||
|
the covered work, and you disclaim any intention to limit operation or
|
||||||
|
modification of the work as a means of enforcing, against the work's
|
||||||
|
users, your or third parties' legal rights to forbid circumvention of
|
||||||
|
technological measures.
|
||||||
|
|
||||||
|
4. Conveying Verbatim Copies.
|
||||||
|
|
||||||
|
You may convey verbatim copies of the Program's source code as you
|
||||||
|
receive it, in any medium, provided that you conspicuously and
|
||||||
|
appropriately publish on each copy an appropriate copyright notice;
|
||||||
|
keep intact all notices stating that this License and any
|
||||||
|
non-permissive terms added in accord with section 7 apply to the code;
|
||||||
|
keep intact all notices of the absence of any warranty; and give all
|
||||||
|
recipients a copy of this License along with the Program.
|
||||||
|
|
||||||
|
You may charge any price or no price for each copy that you convey,
|
||||||
|
and you may offer support or warranty protection for a fee.
|
||||||
|
|
||||||
|
5. Conveying Modified Source Versions.
|
||||||
|
|
||||||
|
You may convey a work based on the Program, or the modifications to
|
||||||
|
produce it from the Program, in the form of source code under the
|
||||||
|
terms of section 4, provided that you also meet all of these conditions:
|
||||||
|
|
||||||
|
a) The work must carry prominent notices stating that you modified
|
||||||
|
it, and giving a relevant date.
|
||||||
|
|
||||||
|
b) The work must carry prominent notices stating that it is
|
||||||
|
released under this License and any conditions added under section
|
||||||
|
7. This requirement modifies the requirement in section 4 to
|
||||||
|
"keep intact all notices".
|
||||||
|
|
||||||
|
c) You must license the entire work, as a whole, under this
|
||||||
|
License to anyone who comes into possession of a copy. This
|
||||||
|
License will therefore apply, along with any applicable section 7
|
||||||
|
additional terms, to the whole of the work, and all its parts,
|
||||||
|
regardless of how they are packaged. This License gives no
|
||||||
|
permission to license the work in any other way, but it does not
|
||||||
|
invalidate such permission if you have separately received it.
|
||||||
|
|
||||||
|
d) If the work has interactive user interfaces, each must display
|
||||||
|
Appropriate Legal Notices; however, if the Program has interactive
|
||||||
|
interfaces that do not display Appropriate Legal Notices, your
|
||||||
|
work need not make them do so.
|
||||||
|
|
||||||
|
A compilation of a covered work with other separate and independent
|
||||||
|
works, which are not by their nature extensions of the covered work,
|
||||||
|
and which are not combined with it such as to form a larger program,
|
||||||
|
in or on a volume of a storage or distribution medium, is called an
|
||||||
|
"aggregate" if the compilation and its resulting copyright are not
|
||||||
|
used to limit the access or legal rights of the compilation's users
|
||||||
|
beyond what the individual works permit. Inclusion of a covered work
|
||||||
|
in an aggregate does not cause this License to apply to the other
|
||||||
|
parts of the aggregate.
|
||||||
|
|
||||||
|
6. Conveying Non-Source Forms.
|
||||||
|
|
||||||
|
You may convey a covered work in object code form under the terms
|
||||||
|
of sections 4 and 5, provided that you also convey the
|
||||||
|
machine-readable Corresponding Source under the terms of this License,
|
||||||
|
in one of these ways:
|
||||||
|
|
||||||
|
a) Convey the object code in, or embodied in, a physical product
|
||||||
|
(including a physical distribution medium), accompanied by the
|
||||||
|
Corresponding Source fixed on a durable physical medium
|
||||||
|
customarily used for software interchange.
|
||||||
|
|
||||||
|
b) Convey the object code in, or embodied in, a physical product
|
||||||
|
(including a physical distribution medium), accompanied by a
|
||||||
|
written offer, valid for at least three years and valid for as
|
||||||
|
long as you offer spare parts or customer support for that product
|
||||||
|
model, to give anyone who possesses the object code either (1) a
|
||||||
|
copy of the Corresponding Source for all the software in the
|
||||||
|
product that is covered by this License, on a durable physical
|
||||||
|
medium customarily used for software interchange, for a price no
|
||||||
|
more than your reasonable cost of physically performing this
|
||||||
|
conveying of source, or (2) access to copy the
|
||||||
|
Corresponding Source from a network server at no charge.
|
||||||
|
|
||||||
|
c) Convey individual copies of the object code with a copy of the
|
||||||
|
written offer to provide the Corresponding Source. This
|
||||||
|
alternative is allowed only occasionally and noncommercially, and
|
||||||
|
only if you received the object code with such an offer, in accord
|
||||||
|
with subsection 6b.
|
||||||
|
|
||||||
|
d) Convey the object code by offering access from a designated
|
||||||
|
place (gratis or for a charge), and offer equivalent access to the
|
||||||
|
Corresponding Source in the same way through the same place at no
|
||||||
|
further charge. You need not require recipients to copy the
|
||||||
|
Corresponding Source along with the object code. If the place to
|
||||||
|
copy the object code is a network server, the Corresponding Source
|
||||||
|
may be on a different server (operated by you or a third party)
|
||||||
|
that supports equivalent copying facilities, provided you maintain
|
||||||
|
clear directions next to the object code saying where to find the
|
||||||
|
Corresponding Source. Regardless of what server hosts the
|
||||||
|
Corresponding Source, you remain obligated to ensure that it is
|
||||||
|
available for as long as needed to satisfy these requirements.
|
||||||
|
|
||||||
|
e) Convey the object code using peer-to-peer transmission, provided
|
||||||
|
you inform other peers where the object code and Corresponding
|
||||||
|
Source of the work are being offered to the general public at no
|
||||||
|
charge under subsection 6d.
|
||||||
|
|
||||||
|
A separable portion of the object code, whose source code is excluded
|
||||||
|
from the Corresponding Source as a System Library, need not be
|
||||||
|
included in conveying the object code work.
|
||||||
|
|
||||||
|
A "User Product" is either (1) a "consumer product", which means any
|
||||||
|
tangible personal property which is normally used for personal, family,
|
||||||
|
or household purposes, or (2) anything designed or sold for incorporation
|
||||||
|
into a dwelling. In determining whether a product is a consumer product,
|
||||||
|
doubtful cases shall be resolved in favor of coverage. For a particular
|
||||||
|
product received by a particular user, "normally used" refers to a
|
||||||
|
typical or common use of that class of product, regardless of the status
|
||||||
|
of the particular user or of the way in which the particular user
|
||||||
|
actually uses, or expects or is expected to use, the product. A product
|
||||||
|
is a consumer product regardless of whether the product has substantial
|
||||||
|
commercial, industrial or non-consumer uses, unless such uses represent
|
||||||
|
the only significant mode of use of the product.
|
||||||
|
|
||||||
|
"Installation Information" for a User Product means any methods,
|
||||||
|
procedures, authorization keys, or other information required to install
|
||||||
|
and execute modified versions of a covered work in that User Product from
|
||||||
|
a modified version of its Corresponding Source. The information must
|
||||||
|
suffice to ensure that the continued functioning of the modified object
|
||||||
|
code is in no case prevented or interfered with solely because
|
||||||
|
modification has been made.
|
||||||
|
|
||||||
|
If you convey an object code work under this section in, or with, or
|
||||||
|
specifically for use in, a User Product, and the conveying occurs as
|
||||||
|
part of a transaction in which the right of possession and use of the
|
||||||
|
User Product is transferred to the recipient in perpetuity or for a
|
||||||
|
fixed term (regardless of how the transaction is characterized), the
|
||||||
|
Corresponding Source conveyed under this section must be accompanied
|
||||||
|
by the Installation Information. But this requirement does not apply
|
||||||
|
if neither you nor any third party retains the ability to install
|
||||||
|
modified object code on the User Product (for example, the work has
|
||||||
|
been installed in ROM).
|
||||||
|
|
||||||
|
The requirement to provide Installation Information does not include a
|
||||||
|
requirement to continue to provide support service, warranty, or updates
|
||||||
|
for a work that has been modified or installed by the recipient, or for
|
||||||
|
the User Product in which it has been modified or installed. Access to a
|
||||||
|
network may be denied when the modification itself materially and
|
||||||
|
adversely affects the operation of the network or violates the rules and
|
||||||
|
protocols for communication across the network.
|
||||||
|
|
||||||
|
Corresponding Source conveyed, and Installation Information provided,
|
||||||
|
in accord with this section must be in a format that is publicly
|
||||||
|
documented (and with an implementation available to the public in
|
||||||
|
source code form), and must require no special password or key for
|
||||||
|
unpacking, reading or copying.
|
||||||
|
|
||||||
|
7. Additional Terms.
|
||||||
|
|
||||||
|
"Additional permissions" are terms that supplement the terms of this
|
||||||
|
License by making exceptions from one or more of its conditions.
|
||||||
|
Additional permissions that are applicable to the entire Program shall
|
||||||
|
be treated as though they were included in this License, to the extent
|
||||||
|
that they are valid under applicable law. If additional permissions
|
||||||
|
apply only to part of the Program, that part may be used separately
|
||||||
|
under those permissions, but the entire Program remains governed by
|
||||||
|
this License without regard to the additional permissions.
|
||||||
|
|
||||||
|
When you convey a copy of a covered work, you may at your option
|
||||||
|
remove any additional permissions from that copy, or from any part of
|
||||||
|
it. (Additional permissions may be written to require their own
|
||||||
|
removal in certain cases when you modify the work.) You may place
|
||||||
|
additional permissions on material, added by you to a covered work,
|
||||||
|
for which you have or can give appropriate copyright permission.
|
||||||
|
|
||||||
|
Notwithstanding any other provision of this License, for material you
|
||||||
|
add to a covered work, you may (if authorized by the copyright holders of
|
||||||
|
that material) supplement the terms of this License with terms:
|
||||||
|
|
||||||
|
a) Disclaiming warranty or limiting liability differently from the
|
||||||
|
terms of sections 15 and 16 of this License; or
|
||||||
|
|
||||||
|
b) Requiring preservation of specified reasonable legal notices or
|
||||||
|
author attributions in that material or in the Appropriate Legal
|
||||||
|
Notices displayed by works containing it; or
|
||||||
|
|
||||||
|
c) Prohibiting misrepresentation of the origin of that material, or
|
||||||
|
requiring that modified versions of such material be marked in
|
||||||
|
reasonable ways as different from the original version; or
|
||||||
|
|
||||||
|
d) Limiting the use for publicity purposes of names of licensors or
|
||||||
|
authors of the material; or
|
||||||
|
|
||||||
|
e) Declining to grant rights under trademark law for use of some
|
||||||
|
trade names, trademarks, or service marks; or
|
||||||
|
|
||||||
|
f) Requiring indemnification of licensors and authors of that
|
||||||
|
material by anyone who conveys the material (or modified versions of
|
||||||
|
it) with contractual assumptions of liability to the recipient, for
|
||||||
|
any liability that these contractual assumptions directly impose on
|
||||||
|
those licensors and authors.
|
||||||
|
|
||||||
|
All other non-permissive additional terms are considered "further
|
||||||
|
restrictions" within the meaning of section 10. If the Program as you
|
||||||
|
received it, or any part of it, contains a notice stating that it is
|
||||||
|
governed by this License along with a term that is a further
|
||||||
|
restriction, you may remove that term. If a license document contains
|
||||||
|
a further restriction but permits relicensing or conveying under this
|
||||||
|
License, you may add to a covered work material governed by the terms
|
||||||
|
of that license document, provided that the further restriction does
|
||||||
|
not survive such relicensing or conveying.
|
||||||
|
|
||||||
|
If you add terms to a covered work in accord with this section, you
|
||||||
|
must place, in the relevant source files, a statement of the
|
||||||
|
additional terms that apply to those files, or a notice indicating
|
||||||
|
where to find the applicable terms.
|
||||||
|
|
||||||
|
Additional terms, permissive or non-permissive, may be stated in the
|
||||||
|
form of a separately written license, or stated as exceptions;
|
||||||
|
the above requirements apply either way.
|
||||||
|
|
||||||
|
8. Termination.
|
||||||
|
|
||||||
|
You may not propagate or modify a covered work except as expressly
|
||||||
|
provided under this License. Any attempt otherwise to propagate or
|
||||||
|
modify it is void, and will automatically terminate your rights under
|
||||||
|
this License (including any patent licenses granted under the third
|
||||||
|
paragraph of section 11).
|
||||||
|
|
||||||
|
However, if you cease all violation of this License, then your
|
||||||
|
license from a particular copyright holder is reinstated (a)
|
||||||
|
provisionally, unless and until the copyright holder explicitly and
|
||||||
|
finally terminates your license, and (b) permanently, if the copyright
|
||||||
|
holder fails to notify you of the violation by some reasonable means
|
||||||
|
prior to 60 days after the cessation.
|
||||||
|
|
||||||
|
Moreover, your license from a particular copyright holder is
|
||||||
|
reinstated permanently if the copyright holder notifies you of the
|
||||||
|
violation by some reasonable means, this is the first time you have
|
||||||
|
received notice of violation of this License (for any work) from that
|
||||||
|
copyright holder, and you cure the violation prior to 30 days after
|
||||||
|
your receipt of the notice.
|
||||||
|
|
||||||
|
Termination of your rights under this section does not terminate the
|
||||||
|
licenses of parties who have received copies or rights from you under
|
||||||
|
this License. If your rights have been terminated and not permanently
|
||||||
|
reinstated, you do not qualify to receive new licenses for the same
|
||||||
|
material under section 10.
|
||||||
|
|
||||||
|
9. Acceptance Not Required for Having Copies.
|
||||||
|
|
||||||
|
You are not required to accept this License in order to receive or
|
||||||
|
run a copy of the Program. Ancillary propagation of a covered work
|
||||||
|
occurring solely as a consequence of using peer-to-peer transmission
|
||||||
|
to receive a copy likewise does not require acceptance. However,
|
||||||
|
nothing other than this License grants you permission to propagate or
|
||||||
|
modify any covered work. These actions infringe copyright if you do
|
||||||
|
not accept this License. Therefore, by modifying or propagating a
|
||||||
|
covered work, you indicate your acceptance of this License to do so.
|
||||||
|
|
||||||
|
10. Automatic Licensing of Downstream Recipients.
|
||||||
|
|
||||||
|
Each time you convey a covered work, the recipient automatically
|
||||||
|
receives a license from the original licensors, to run, modify and
|
||||||
|
propagate that work, subject to this License. You are not responsible
|
||||||
|
for enforcing compliance by third parties with this License.
|
||||||
|
|
||||||
|
An "entity transaction" is a transaction transferring control of an
|
||||||
|
organization, or substantially all assets of one, or subdividing an
|
||||||
|
organization, or merging organizations. If propagation of a covered
|
||||||
|
work results from an entity transaction, each party to that
|
||||||
|
transaction who receives a copy of the work also receives whatever
|
||||||
|
licenses to the work the party's predecessor in interest had or could
|
||||||
|
give under the previous paragraph, plus a right to possession of the
|
||||||
|
Corresponding Source of the work from the predecessor in interest, if
|
||||||
|
the predecessor has it or can get it with reasonable efforts.
|
||||||
|
|
||||||
|
You may not impose any further restrictions on the exercise of the
|
||||||
|
rights granted or affirmed under this License. For example, you may
|
||||||
|
not impose a license fee, royalty, or other charge for exercise of
|
||||||
|
rights granted under this License, and you may not initiate litigation
|
||||||
|
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||||
|
any patent claim is infringed by making, using, selling, offering for
|
||||||
|
sale, or importing the Program or any portion of it.
|
||||||
|
|
||||||
|
11. Patents.
|
||||||
|
|
||||||
|
A "contributor" is a copyright holder who authorizes use under this
|
||||||
|
License of the Program or a work on which the Program is based. The
|
||||||
|
work thus licensed is called the contributor's "contributor version".
|
||||||
|
|
||||||
|
A contributor's "essential patent claims" are all patent claims
|
||||||
|
owned or controlled by the contributor, whether already acquired or
|
||||||
|
hereafter acquired, that would be infringed by some manner, permitted
|
||||||
|
by this License, of making, using, or selling its contributor version,
|
||||||
|
but do not include claims that would be infringed only as a
|
||||||
|
consequence of further modification of the contributor version. For
|
||||||
|
purposes of this definition, "control" includes the right to grant
|
||||||
|
patent sublicenses in a manner consistent with the requirements of
|
||||||
|
this License.
|
||||||
|
|
||||||
|
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||||
|
patent license under the contributor's essential patent claims, to
|
||||||
|
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||||
|
propagate the contents of its contributor version.
|
||||||
|
|
||||||
|
In the following three paragraphs, a "patent license" is any express
|
||||||
|
agreement or commitment, however denominated, not to enforce a patent
|
||||||
|
(such as an express permission to practice a patent or covenant not to
|
||||||
|
sue for patent infringement). To "grant" such a patent license to a
|
||||||
|
party means to make such an agreement or commitment not to enforce a
|
||||||
|
patent against the party.
|
||||||
|
|
||||||
|
If you convey a covered work, knowingly relying on a patent license,
|
||||||
|
and the Corresponding Source of the work is not available for anyone
|
||||||
|
to copy, free of charge and under the terms of this License, through a
|
||||||
|
publicly available network server or other readily accessible means,
|
||||||
|
then you must either (1) cause the Corresponding Source to be so
|
||||||
|
available, or (2) arrange to deprive yourself of the benefit of the
|
||||||
|
patent license for this particular work, or (3) arrange, in a manner
|
||||||
|
consistent with the requirements of this License, to extend the patent
|
||||||
|
license to downstream recipients. "Knowingly relying" means you have
|
||||||
|
actual knowledge that, but for the patent license, your conveying the
|
||||||
|
covered work in a country, or your recipient's use of the covered work
|
||||||
|
in a country, would infringe one or more identifiable patents in that
|
||||||
|
country that you have reason to believe are valid.
|
||||||
|
|
||||||
|
If, pursuant to or in connection with a single transaction or
|
||||||
|
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||||
|
covered work, and grant a patent license to some of the parties
|
||||||
|
receiving the covered work authorizing them to use, propagate, modify
|
||||||
|
or convey a specific copy of the covered work, then the patent license
|
||||||
|
you grant is automatically extended to all recipients of the covered
|
||||||
|
work and works based on it.
|
||||||
|
|
||||||
|
A patent license is "discriminatory" if it does not include within
|
||||||
|
the scope of its coverage, prohibits the exercise of, or is
|
||||||
|
conditioned on the non-exercise of one or more of the rights that are
|
||||||
|
specifically granted under this License. You may not convey a covered
|
||||||
|
work if you are a party to an arrangement with a third party that is
|
||||||
|
in the business of distributing software, under which you make payment
|
||||||
|
to the third party based on the extent of your activity of conveying
|
||||||
|
the work, and under which the third party grants, to any of the
|
||||||
|
parties who would receive the covered work from you, a discriminatory
|
||||||
|
patent license (a) in connection with copies of the covered work
|
||||||
|
conveyed by you (or copies made from those copies), or (b) primarily
|
||||||
|
for and in connection with specific products or compilations that
|
||||||
|
contain the covered work, unless you entered into that arrangement,
|
||||||
|
or that patent license was granted, prior to 28 March 2007.
|
||||||
|
|
||||||
|
Nothing in this License shall be construed as excluding or limiting
|
||||||
|
any implied license or other defenses to infringement that may
|
||||||
|
otherwise be available to you under applicable patent law.
|
||||||
|
|
||||||
|
12. No Surrender of Others' Freedom.
|
||||||
|
|
||||||
|
If conditions are imposed on you (whether by court order, agreement or
|
||||||
|
otherwise) that contradict the conditions of this License, they do not
|
||||||
|
excuse you from the conditions of this License. If you cannot convey a
|
||||||
|
covered work so as to satisfy simultaneously your obligations under this
|
||||||
|
License and any other pertinent obligations, then as a consequence you may
|
||||||
|
not convey it at all. For example, if you agree to terms that obligate you
|
||||||
|
to collect a royalty for further conveying from those to whom you convey
|
||||||
|
the Program, the only way you could satisfy both those terms and this
|
||||||
|
License would be to refrain entirely from conveying the Program.
|
||||||
|
|
||||||
|
13. Use with the GNU Affero General Public License.
|
||||||
|
|
||||||
|
Notwithstanding any other provision of this License, you have
|
||||||
|
permission to link or combine any covered work with a work licensed
|
||||||
|
under version 3 of the GNU Affero General Public License into a single
|
||||||
|
combined work, and to convey the resulting work. The terms of this
|
||||||
|
License will continue to apply to the part which is the covered work,
|
||||||
|
but the special requirements of the GNU Affero General Public License,
|
||||||
|
section 13, concerning interaction through a network will apply to the
|
||||||
|
combination as such.
|
||||||
|
|
||||||
|
14. Revised Versions of this License.
|
||||||
|
|
||||||
|
The Free Software Foundation may publish revised and/or new versions of
|
||||||
|
the GNU General Public License from time to time. Such new versions will
|
||||||
|
be similar in spirit to the present version, but may differ in detail to
|
||||||
|
address new problems or concerns.
|
||||||
|
|
||||||
|
Each version is given a distinguishing version number. If the
|
||||||
|
Program specifies that a certain numbered version of the GNU General
|
||||||
|
Public License "or any later version" applies to it, you have the
|
||||||
|
option of following the terms and conditions either of that numbered
|
||||||
|
version or of any later version published by the Free Software
|
||||||
|
Foundation. If the Program does not specify a version number of the
|
||||||
|
GNU General Public License, you may choose any version ever published
|
||||||
|
by the Free Software Foundation.
|
||||||
|
|
||||||
|
If the Program specifies that a proxy can decide which future
|
||||||
|
versions of the GNU General Public License can be used, that proxy's
|
||||||
|
public statement of acceptance of a version permanently authorizes you
|
||||||
|
to choose that version for the Program.
|
||||||
|
|
||||||
|
Later license versions may give you additional or different
|
||||||
|
permissions. However, no additional obligations are imposed on any
|
||||||
|
author or copyright holder as a result of your choosing to follow a
|
||||||
|
later version.
|
||||||
|
|
||||||
|
15. Disclaimer of Warranty.
|
||||||
|
|
||||||
|
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||||
|
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||||
|
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||||
|
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||||
|
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||||
|
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||||
|
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||||
|
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||||
|
|
||||||
|
16. Limitation of Liability.
|
||||||
|
|
||||||
|
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||||
|
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||||
|
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||||
|
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||||
|
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||||
|
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||||
|
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||||
|
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||||
|
SUCH DAMAGES.
|
||||||
|
|
||||||
|
17. Interpretation of Sections 15 and 16.
|
||||||
|
|
||||||
|
If the disclaimer of warranty and limitation of liability provided
|
||||||
|
above cannot be given local legal effect according to their terms,
|
||||||
|
reviewing courts shall apply local law that most closely approximates
|
||||||
|
an absolute waiver of all civil liability in connection with the
|
||||||
|
Program, unless a warranty or assumption of liability accompanies a
|
||||||
|
copy of the Program in return for a fee.
|
||||||
|
|
||||||
|
END OF TERMS AND CONDITIONS
|
||||||
|
|
||||||
|
How to Apply These Terms to Your New Programs
|
||||||
|
|
||||||
|
If you develop a new program, and you want it to be of the greatest
|
||||||
|
possible use to the public, the best way to achieve this is to make it
|
||||||
|
free software which everyone can redistribute and change under these terms.
|
||||||
|
|
||||||
|
To do so, attach the following notices to the program. It is safest
|
||||||
|
to attach them to the start of each source file to most effectively
|
||||||
|
state the exclusion of warranty; and each file should have at least
|
||||||
|
the "copyright" line and a pointer to where the full notice is found.
|
||||||
|
|
||||||
|
<one line to give the program's name and a brief idea of what it does.>
|
||||||
|
Copyright (C) <year> <name of author>
|
||||||
|
|
||||||
|
This program is free software: you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation, either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
This program is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
Also add information on how to contact you by electronic and paper mail.
|
||||||
|
|
||||||
|
If the program does terminal interaction, make it output a short
|
||||||
|
notice like this when it starts in an interactive mode:
|
||||||
|
|
||||||
|
<program> Copyright (C) <year> <name of author>
|
||||||
|
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||||
|
This is free software, and you are welcome to redistribute it
|
||||||
|
under certain conditions; type `show c' for details.
|
||||||
|
|
||||||
|
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||||
|
parts of the General Public License. Of course, your program's commands
|
||||||
|
might be different; for a GUI interface, you would use an "about box".
|
||||||
|
|
||||||
|
You should also get your employer (if you work as a programmer) or school,
|
||||||
|
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||||
|
For more information on this, and how to apply and follow the GNU GPL, see
|
||||||
|
<http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
The GNU General Public License does not permit incorporating your program
|
||||||
|
into proprietary programs. If your program is a subroutine library, you
|
||||||
|
may consider it more useful to permit linking proprietary applications with
|
||||||
|
the library. If this is what you want to do, use the GNU Lesser General
|
||||||
|
Public License instead of this License. But first, please read
|
||||||
|
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
|
|
@ -0,0 +1,27 @@
|
||||||
|
This is a set of functional tests for the 6502/65C02 type processors.
|
||||||
|
|
||||||
|
The 6502_functionel_test.a65 is an assembler sourcecode to test all valid
|
||||||
|
opcodes and addressing modes of the original NMOS 6502 cpu.
|
||||||
|
|
||||||
|
The 65C02_extended_opcodes_test.a65c tests all additional opcodes of the
|
||||||
|
65C02 processor including undefined opcodes.
|
||||||
|
|
||||||
|
The 6502_interrupt_test.a65 is a simple test to check the interrupt system
|
||||||
|
of both processors. A feedback register is required to inject IRQ and NMI
|
||||||
|
requests.
|
||||||
|
|
||||||
|
All source files are included in the zipped file.
|
||||||
|
|
||||||
|
Detailed information about how to configure, assemble and run the tests is
|
||||||
|
included in each source file.
|
||||||
|
|
||||||
|
The tests have primarily been written to test my own ATMega16 6502 emulator
|
||||||
|
project. You can find it here: http://2m5.de/6502_Emu/index.htm
|
||||||
|
|
||||||
|
A discussion about the tests can be found here:
|
||||||
|
http://forum.6502.org/viewtopic.php?f=2&t=2241
|
||||||
|
|
||||||
|
Good luck debugging your emulator, simulator, vhdl core, discrete
|
||||||
|
logic implementation or whatever you have!
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue