added BASE and OFFSET defs, additional mapping starting at C300
This commit is contained in:
flowenol
Piotr Jaczewski
parent
b147de89a5
commit
6b3f439e94
12
Makefile
12
Makefile
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@ -8,10 +8,14 @@ $(SUBDIRS):
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.PHONY: $(TOPTARGETS) $(SUBDIRS)
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apple1serial.bin:
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xa -W -C -v -O ASCII -c src/apple1serial.a65 -l apple1serial.label -o apple1serial.bin
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apple1serial-C000.bin:
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xa -DOFFSET="0" -W -C -v -O ASCII -c src/apple1serial.a65 -l apple1serial-C000.label -o apple1serial-C000.bin
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all: apple1serial.bin
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apple1serial-C300.bin:
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xa -DOFFSET="768" -W -C -v -O ASCII -c src/apple1serial.a65 -l apple1serial-C300.label -o apple1serial-C300.bin
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all: apple1serial-C000.bin apple1serial-C300.bin
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clean:
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rm apple1serial.bin apple1serial.label
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rm -f apple1serial*.bin apple1serial*.label
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10
README.md
10
README.md
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@ -57,6 +57,16 @@ The contents of this repository are as following:
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* src/ - contains the 6502 assembly sources for the A1SI onboard ROM routines
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* scripts/ - contains python based file transfer utility
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## Mappings
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There are two .jed files for the GAL20V8 based address decoder:
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1. **address_decoder-C000.jed** - defines the standard mapping where the device mimics the original ACI loader program at `$C100`.
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2. **address_decoder-C300.jed** - defines an alternative mapping allowing tu run Apple-1 Serial Interface together with the original ACI within the same system.
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All program and hardware entries are shifted by offset `$300`, so the loader program can be accessed at `$C400`.
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## Requirements
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You need the following to successfully build the firmware:
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@ -0,0 +1,15 @@
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chip GAL20V8
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NC3=1 RW=2 A0=11 A1=10 A2=9 A3=8 A4=7 A5=6 A6=5 A7=4 A8=3 GND=12
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A9=16 A10=15 A11=14 SR=17 RD=18 WD=19 ROM=20 RES=21 PHI=22
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T=23 VCC=24
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equations
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SR = /A0 * /A1 * /A2 * /A3 * /A4 * /A5 * /A6 * /A7 * A8 * A9 * /A10 * /A11 * /T * RW
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RD = /A0 * /A1 * /A2 * /A3 * /A4 * /A5 * /A6 * A7 * A8 * A9 * /A10 * /A11 * /T * RW
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WD = A0 * /A1 * /A2 * /A3 * /A4 * /A5 * /A6 * A7 * A8 * A9 * /A10 * /A11 * /T * /RW * PHI
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/ROM = /A11 * A10 * /T * RW
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+ A11 * /A10 * /T * RW
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+ A2 * A3 * A4 * A5 * A6 * A7 * A8 * A9 * /A10 * /A11 * /T * RW
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RES = A0 * /A1 * /A2 * /A3 * /A4 * /A5 * /A6 * /A7 * A8 * A9 * /A10 * /A11 * /T * RW
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@ -0,0 +1,33 @@
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GAL20V8
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EQN2JED - Boolean Equations to JEDEC file assembler (Version V101)
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Copyright (c) National Semiconductor Corporation 1990-1993
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Assembled from "ADDRES~1.EQN". Date: 1-13-123
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*
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NOTE PINS RW:2 A8:3 A7:4 A6:5 A5:6 A4:7 A3:8 A2:9 A1:10 A0:11*
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NOTE PINS GND:12 A11:14 A10:15 A9:16 SR:17 RD:18 WD:19 ROM:20*
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NOTE PINS RES:21 PHI:22 T:23 VCC:24*
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NOTE GALMODE SMALL*
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QF2706*QP24*F0*
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L0320
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0111011010111011101110111001101010100111*
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L0640
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0111111011111111111111111111110111101111
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0111111011111111111111111111111011011111
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0111011001110111011101110101011011101111*
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L0960
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1011011001011011101110111001101010100111*
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L1280
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0111011001111011101110111001101010101011*
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L1600
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0111011010111011101110111001101010101011*
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L2560
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01011100*
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L2632
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10000011*
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L2640
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0000000010000000111000001000000010000000100000000000000000000000*
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L2704
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10*
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C1A4F*
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0000
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@ -0,0 +1,73 @@
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EQN2JED - Boolean Equations to JEDEC file assembler (Version V101)
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Copyright (c) National Semiconductor Corporation 1990-1993
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Log file for ADDRES~1.EQN
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Device: 20V8
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Pin Label Type
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--- ----- ----
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2 RW pos,com input
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3 A8 pos,com input
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4 A7 pos,com input
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5 A6 pos,com input
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6 A5 pos,com input
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7 A4 pos,com input
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8 A3 pos,com input
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9 A2 pos,com input
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10 A1 pos,com input
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11 A0 pos,com input
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12 GND ground pin
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14 A11 pos,com input
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15 A10 pos,com input
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16 A9 pos,com input
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17 SR pos,com output
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18 RD pos,com output
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19 WD pos,com output
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20 ROM neg,com output
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21 RES pos,com output
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22 PHI pos,com input
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23 T pos,com input
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24 VCC power pin
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EQN2JED - Boolean Equations to JEDEC file assembler (Version V101)
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Copyright (c) National Semiconductor Corporation 1990-1993
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Device Utilization:
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No of dedicated inputs used : 14/14 (100.0%)
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No of feedbacks used as dedicated inputs : 1/6 (16.7%)
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No of dedicated outputs used : 2/2 (100.0%)
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No of feedbacks used as dedicated outputs : 3/6 (50.0%)
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------------------------------------------
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Pin Label Terms Usage
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------------------------------------------
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21 RES 1/8 (12.5%)
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20 ROM 3/8 (37.5%)
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19 WD 1/8 (12.5%)
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18 RD 1/8 (12.5%)
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17 SR 1/8 (12.5%)
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------------------------------------------
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Total Terms 7/64 (10.9%)
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------------------------------------------
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EQN2JED - Boolean Equations to JEDEC file assembler (Version V101)
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Copyright (c) National Semiconductor Corporation 1990-1993
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Chip diagram (DIP)
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._____ _____.
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| \__/ |
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| 1 24 | VCC
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RW | 2 23 | T
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A8 | 3 22 | PHI
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A7 | 4 21 | RES
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A6 | 5 20 | ROM
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A5 | 6 19 | WD
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A4 | 7 18 | RD
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A3 | 8 17 | SR
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A2 | 9 16 | A9
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A1 | 10 15 | A10
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A0 | 11 14 | A11
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GND | 12 13 |
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|______________|
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@ -1,3 +1,11 @@
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#ifndef BASE
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#define BASE $C000
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#endif
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#ifndef OFFSET
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#define OFFSET 0
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#endif
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;End address of dump block
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#define hex1_l $34
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#define hex1_h $35
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@ -19,10 +27,10 @@
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#define echo $FFEF ;Echo character to terminal
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#define prbyte $FFDC
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#define serial_ready $C000
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#define serial_reset $C001
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#define serial_read $C080
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#define serial_write $C081
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#define serial_ready BASE + OFFSET
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#define serial_reset BASE + $1 + OFFSET
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#define serial_read BASE + $80 + OFFSET
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#define serial_write BASE + $81 + OFFSET
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#define R_LETTER $D2
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@ -34,14 +42,14 @@
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#define SPACE $A0
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; pad first 252 bytes with zeroes
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.dsb 252, 0
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.dsb 252 + OFFSET, 0
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; include identification bytes
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.byt "A1SI"
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; this section is almost identical to original WOZ ACI
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; adapted from https://www.sbprojects.net/projects/apple1/aci.php
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* = $C100
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* = BASE + $100 + OFFSET
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apple_serial
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lda #CR ;Drop the cursor one line
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jsr echo
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@ -4,9 +4,9 @@
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; regarding the IO of the serial interface.
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;-------------------------------------------------------------------------
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#define serial_ready $C000
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#define serial_read $C080
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#define serial_write $C081
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#define serial_ready BASE + $000 + OFFSET
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#define serial_read BASE + $080 + OFFSET
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#define serial_write BASE + $081 + OFFSET
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;-------------------------------------------------------------------------
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; Memory declaration
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@ -64,9 +64,9 @@
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; Let's get started
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;-------------------------------------------------------------------------
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* = $C600
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* = BASE + $600 + OFFSET
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.dsb (*-end_of_counter_remote), 0
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* = $C600
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* = BASE + $600 + OFFSET
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reset
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jsr reset_serial
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@ -1,22 +1,22 @@
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#define echo $FFEF
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#define kbd_data $D010
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#define kbd_cr $D011
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#define serial_ready $C000
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#define serial_read $C080
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#define serial_write $C081
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#define serial_ready BASE + $000 + OFFSET
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#define serial_read BASE + $080 + OFFSET
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#define serial_write BASE + $081 + OFFSET
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; How to store INTEGER BASIC progams?
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; C100R - run serial monitor
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; C100( + OFFSET)R - run serial monitor
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; 004A.00FFW 0800.0FFFW - write data for default LOMEM & HIMEM
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; E2B3R - warm entry point
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* = $C300
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* = BASE + $300 + OFFSET
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.dsb (*-end_of_apple1serial), 0
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; teletype on apple-1
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; the data from remote appears on apple-1 screen
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* = $C300
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teletype_apple1 = $C300
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* = BASE + $300 + OFFSET
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teletype_apple1 = BASE + $300 + OFFSET
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jsr reset_serial
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lda serial_read
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teletype_apple1_wait
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@ -29,11 +29,11 @@ end_of_teletype_apple1
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; teletype on remote
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; the data from apple-1 appears on remote
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* = $C400
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* = BASE + $400 + OFFSET
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.dsb (*-end_of_teletype_apple1), 0
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* = $C400
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teletype_remote = $C400
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* = BASE + $400 + OFFSET
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teletype_remote = BASE + $400 + OFFSET
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jsr reset_serial
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lda #$FF
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sta serial_write
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@ -52,11 +52,11 @@ teletype_remote_wait
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end_of_teletype_remote
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; 0-255 repeating counter over TXD
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* = $C500
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* = BASE + $500 + OFFSET
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.dsb (*-end_of_teletype_remote), 0
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* = $C500
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counter_remote = $C500
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* = BASE + $500 + OFFSET
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counter_remote = BASE + $500 + OFFSET
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jsr reset_serial
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ldy #$00
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sta serial_write
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