Apple-2-SW
/
afscanner
mirror of https://github.com/a2geek/afscanner.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Cleaned up old code debris.

This commit is contained in:
Rob Greene 2016-01-31 16:28:39 -06:00
parent d22bcd1e5a
commit 4e1228b41c
1 changed files with 10 additions and 144 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

154
afscanner.s
View File

@ -1,25 +1,26 @@
********************************
******************************************************************************************
*
* Address Field Scanner
* ========================================================================================
* This is a simple Disk II scanner
* to identify address field contents
*
* 1/16/2016: Version 1.0
*
* 1/29/2016: Version 2.0
* - Restructuring to support paging and scrollong.
* - Slowly switching from spaces to tabs as an experiment.
* - Slowly switching from spaces to tabs as an experiment in code formatting.
* - Pages available:
* + About (default page)
* + Headers (updated Address Field Header information)
* + Browse track buffer (hilights Address Field Header bytes)
*
* This is a simple Disk II scanner
* to identify address field contents
*
********************************
******************************************************************************************
ORG $2000
TYP SYS
ORG $2000
TYP SYS
XC ; enable 65C02
XC ; enable 65C02
* Constants:
@ -757,136 +758,6 @@ ReadTrack
rts
DISPLAY LDA #20
STA SAMPLES
JSR PRINT
DFB _HOME
HEX 8D ; CR
DFB 7,$88 ; backspace into 1st line
ASC "T="
DFB _PRBYTE
DA CURTRK
ASC ".00"
HEX 00
JSR CLRSCRN
LDX SLOT16 ; Restore X
LDA MOTORON,X ; (gets turned off for keypress)
* Fully read the track into buffer @ DATA
JSR SETUPDATA
LDY #0
:LOOP LDA Q6L,X
BPL :LOOP
STA (DATA),Y
INY
BNE :LOOP
INC DATA+1
DEC TEMP
BNE :LOOP
LDA MOTOROFF,X
* Scan for our prologue and save bytes to buffer
JSR SETUPDATA
SCAN LDY #0
:LOOP LDA (DATA),Y
CMP PROLOGUE,Y
BNE ADVANCE
INY
CPY #3
BCC :LOOP
* Report out the prologue and decode address field
REPORT LDY #0
:1 LDA (DATA),Y
JSR PRHEX
INY
CPY #NUMBYTES
BCC :1
LDA #"V"
LDY #OFFSETV
JSR PRDATA
LDA #"T"
LDY #OFFSETT
JSR PRDATA
LDA #"S"
LDY #OFFSETS
JSR PRDATA
LDA #"C"
LDY #OFFSETC
JSR PRDATA
JSR PRCR
* Fill up the text page... only test when we print something out
TEST DEC SAMPLES
BEQ KEYPRESS
ADVANCE INC DATA
BNE SCAN
INC DATA+1
DEC TEMP
BNE SCAN
* Handle keyboard
KEYPRESS LDA KEYBOARD
BPL KEYPRESS
STA KEYCLEAR
CMP #$E1 ; lower-case A
BCC :0
CMP #$FB ; lower-case Z + 1
BCS :0
AND #%11011111 ; force to upper case
:0 CMP #ESC
BEQ QUIT
CMP #"T"
BEQ GOTOTRK
CMP #"S"
BEQ RESCAN
CMP #"R"
BNE :1
JMP Recalibrate
:1 LDX #-1
CMP #LARROW
BEQ CHGTRACK
LDX #1
CMP #RARROW
BNE KEYPRESS
CHGTRACK TXA
CLC
ADC CURTRK
CMP #35 ; cap at track 34
BCS RESCAN
REPOSN STA DSTTRK
JSR ARMMOVE
RESCAN JMP DISPLAY
GOTOTRK JSR CLRSCRN
JSR PRINT
ASC "Enter track number: $"00
JSR READBYTE
BCS RESCAN
BCC REPOSN
QUIT JSR PRODOSMLI
DFB _MLIQUIT
DA QUITPARM
JMP MAIN ; should never be executed
READERR LDA MOTOROFF,X
JSR PRINT
ASC "Unable to read track"00
JMP KEYPRESS
* Setup the data buffer
SETUPDATA LDA #>DATASTART
STA DATA+1
@ -1022,11 +893,6 @@ READHEX JSR GETCH
* Move the Disk II arm:
Recalibrate
LDA #40
STA CURTRK ; force a recalibration
STZ DSTTRK
ARMMOVE LDA CURTRK
CMP DSTTRK
BNE :MOVE