Apple-2-SW
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GWRAM.SYSTEM
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Program works in emulator

This commit is contained in:
Zane Kaminski 2020-05-21 17:10:13 -04:00
parent e98ada671b
commit 990472bd8c
6 changed files with 404 additions and 0 deletions
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.gitignore vendored Normal file
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*.DS_Store
*.o
*.sys
ram2e.s
ram2e140.po

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AppleCommander-ac-1.6.0.jar Normal file
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0000000000111111111122222222223333333333|
0123456789012345678901234567890123456789|
|----------------------------------------|
00| |
01| |
02| |
03| |
04| |
05| |
06| |
07| |
08| This program requires an Apple IIe. |
09| |
10| Press any key to quit. |
11| |
12| |
13| |
14| |
15| |
16| |
17| |
18| |
19| |
20| |
21| |
22| |
23| |
|----------------------------------------|
0000000000111111111122222222223333333333|
0123456789012345678901234567890123456789|
|----------------------------------------|
00| |
01| -- RAM2E Capacity Settings -- |
02| |
03| |
04| Select desired memory capacity: |
05| |
06| 1. 64 kilobytes |
07| |
08| 2. 512 kilobytes |
09| |
10| 3. 1 megabyte |
11| |
12| 4. 4 megabytes |
13| |
14| 5. 8 megabytes |
15| |
16| |
17| Capacity will be saved until power-off.|
18| |
19| To remember capacity setting in |
20| nonvolatile memory, press Apple+number.|
21| |
22| Press [Q] to quit without saving. |
23| |
|----------------------------------------|
0000000000111111111122222222223333333333|
0123456789012345678901234567890123456789|
|----------------------------------------|
00| |
01| |
02| |
03| |
04| |
05| |
06| |
07| |
08| Saving RAM2E capacity setting. |
09| Do not turn off your Apple IIe. |
10| |
11| |
12| |
13| |
14| |
15| |
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17| |
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|----------------------------------------|
0000000000111111111122222222223333333333|
0123456789012345678901234567890123456789|
|----------------------------------------|
00| |
01| |
02| |
03| |
04| |
05| |
06| |
07| |
08| RAM2E capacity set successfully. |
09| |
10| Press any key to quit. |
11| |
12| |
13| |
14| |
15| |
16| |
17| |
18| |
19| |
20| |
21| |
22| |
23| |
|----------------------------------------|

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Makefile Normal file
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all: ram2e140.po
ram2e140.po: ram2e.sys
cp prodos140.po ram2e140.po
cat ram2e.sys | java -jar ./AppleCommander-ac-1.6.0.jar -p ram2e140.po ram2e.system sys 0x2000
ram2e.sys: ram2e.o
ld65 -o ram2e.sys ram2e.o -C apple2enh-system.cfg --lib apple2enh.lib -D __EXEHDR__=0
ram2e.o: ram2e.c
cc65 ram2e.c -O --cpu 6502 -t apple2enh -o ram2e.s
ca65 ram2e.s
ram2e.c:
.PHONY: clean
clean:
rm -f ram2e.s *.o *.sys ram2e140.po

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ram2e.c Normal file
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#include <stdlib.h>
#include <conio.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include <stdint.h>
#define true 1
#define false 0
static char read_applekey(void) {
/*__asm__("lda $C061");
__asm__("ora $C062");
__asm__("and #$80");
__asm__("ldx #0");*/
return (*((char*)0xC061) | *((char*)0xC062)) & 0x80;
}
static void set_mask_temp(char mask) {
__asm__("ldx %o", mask);
__asm__("lda #$FF");
__asm__("sta $C073");
__asm__("lda #$00");
__asm__("sta $C073");
__asm__("lda #$55");
__asm__("sta $C073");
__asm__("lda #$AA");
__asm__("sta $C073");
__asm__("lda #$C1");
__asm__("sta $C073");
__asm__("lda #$AD");
__asm__("sta $C073");
__asm__("lda #$E0");
__asm__("sta $C073");
__asm__("stx $C073");
}
static void ufm_bitbang(char bitbang) {
__asm__("ldx %o", bitbang);
__asm__("lda #$FF");
__asm__("sta $C073");
__asm__("lda #$00");
__asm__("sta $C073");
__asm__("lda #$55");
__asm__("sta $C073");
__asm__("lda #$AA");
__asm__("sta $C073");
__asm__("lda #$C1");
__asm__("sta $C073");
__asm__("lda #$AD");
__asm__("sta $C073");
__asm__("lda #$EA");
__asm__("sta $C073");
__asm__("stx $C073");
}
static void set_nvm(char mask) {
int i;
// Shift mask into UFMD twice
for (i = 0; i < 2; i++) {
char maskpart;
maskpart = 0x80 | ((mask >> 1) & 0x40);
ufm_bitbang(maskpart);
maskpart = 0x80 | ((mask ) & 0x40);
ufm_bitbang(maskpart);
maskpart = 0x80 | ((mask << 1) & 0x40);
ufm_bitbang(maskpart);
maskpart = 0x80 | ((mask << 2) & 0x40);
ufm_bitbang(maskpart);
maskpart = 0x80 | ((mask << 3) & 0x40);
ufm_bitbang(maskpart);
maskpart = 0x80 | ((mask << 4) & 0x40);
ufm_bitbang(maskpart);
maskpart = 0x80 | ((mask << 5) & 0x40);
ufm_bitbang(maskpart);
maskpart = 0x80 | ((mask << 6) & 0x40);
ufm_bitbang(maskpart);
}
}
static void menu(void)
{
gotoxy(5, 1);
cputs("-- RAM2E Capacity Settings --");
gotoxy(1, 4);
cputs("Select desired memory capacity:");
gotoxy(4, 6);
cputs("1. 64 kilobytes");
gotoxy(4, 8);
cputs("2. 512 kilobytes");
gotoxy(4, 10);
cputs("3. 1 megabyte");
gotoxy(4, 12);
cputs("4. 4 megabytes");
gotoxy(4, 14);
cputs("5. 8 megabytes");
gotoxy(1, 17);
cputs("Capacity will be saved until power-off.");
gotoxy(1, 19);
cputs("To remember capacity setting in");
gotoxy(1, 20);
cputs("nonvolatile memory, press Apple+number.");
gotoxy(1, 22);
cputs("Press [Q] to quit without saving.");
}
static void spin(uint8_t x, uint8_t y) {
int i;
const uint8_t spin_big = 10;
const uint8_t spin_small = 150;
for (i = 0; i < spin_big; i++) {
int j;
for (j = 0; j < spin_small; j++) {
__asm__("lda $C000");
__asm__("lda $C100");
gotoxy(x, y);
__asm__("lda $C000");
__asm__("lda $C100");
cputs("-");
__asm__("lda $C000");
__asm__("lda $C100");
}
for (j = 0; j < spin_small; j++) {
__asm__("lda $C000");
__asm__("lda $C100");
gotoxy(x, y);
__asm__("lda $C000");
__asm__("lda $C100");
cputs("\\");
__asm__("lda $C000");
__asm__("lda $C100");
}
for (j = 0; j < spin_small; j++) {
__asm__("lda $C000");
__asm__("lda $C100");
gotoxy(x, y);
__asm__("lda $C000");
__asm__("lda $C100");
cputs("|");
__asm__("lda $C000");
__asm__("lda $C100");
}
for (j = 0; j < spin_small; j++) {
__asm__("lda $C000");
__asm__("lda $C100");
gotoxy(x, y);
__asm__("lda $C000");
__asm__("lda $C100");
cputs("/");
__asm__("lda $C000");
__asm__("lda $C100");
}
}
}
int main(void)
{
char key;
char mask;
char nvm;
clrscr();
// Make sure we are running on an Apple IIe
if((get_ostype() & 0xF0) != APPLE_IIE) {
gotoxy(0, 8);
cputs(" THIS PROGRAM REQUIRES AN APPLE IIE.");
gotoxy(0, 10);
cputs(" PRESS ANY KEY TO QUIT.");
cgetc();
clrscr();
return EXIT_SUCCESS;
}
// Show menu
menu();
// Get user choice
mask = 0;
nvm = 0;
while (true) {
key = toupper(cgetc());
// Set capacity mask or quit according to keypress
if (key == 'Q') {
// Quit
clrscr();
return EXIT_SUCCESS;
}
else if (key == '1') { mask = 0x00; }
else if (key == '2') { mask = 0x07; }
else if (key == '3') { mask = 0x0F; }
else if (key == '4') { mask = 0x3F; }
else if (key == '5') { mask = 0x7F; }
else { continue; }
// Check if pressed with apple key
if (read_applekey()) { nvm = true; }
break;
}
// Set capacity in volatile memory
set_mask_temp(mask);
clrscr();
if (nvm) { // Save in NVM if requested
set_nvm(mask);
gotoxy(1, 8);
cputs("Saving RAM2E capacity setting.");
gotoxy(1, 9);
cputs("Do not turn off your Apple.");
spin(32, 8);
clrscr();
gotoxy(1, 8);
cputs("RAM2E capacity saved successfully.");
} else { // Print success message
gotoxy(1, 8);
cputs("RAM2E capacity set successfully.");
}
gotoxy(1, 10);
cputs("Press any key to quit.");
cgetc();
// Quit
clrscr();
return EXIT_SUCCESS;
}