Added RAM2GS functionality
This commit is contained in:
parent
1e1ecf9592
commit
08f6a7017b
38
Makefile
38
Makefile
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@ -1,14 +1,14 @@
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all: RAM2Eutil.po RAM2Eutil.dbg.po
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.PHONY: clean
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obj:
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@mkdir obj
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bin:
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@mkdir bin
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ram2e.c:
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obj/main.o: obj main.c
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cc65 main.c -O --cpu 6502 -t apple2enh -o obj/main.s
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ca65 obj/main.s -o obj/main.o
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obj/ram2e.o: obj ram2e.c
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cc65 ram2e.c -O --cpu 6502 -t apple2enh -o obj/ram2e.s
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@ -18,19 +18,35 @@ obj/ram2e.dbg.o: obj ram2e.c
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cc65 ram2e.c -O --cpu 6502 -t apple2enh -o obj/ram2e.dbg.s -DSKIP_RAM2E_DETECT
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ca65 obj/ram2e.dbg.s -o obj/ram2e.dbg.o
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bin/ram2e.sys: bin obj/ram2e.o
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ld65 -o bin/ram2e.sys obj/ram2e.o -C apple2enh-system.cfg --lib apple2enh.lib -D __EXEHDR__=0
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obj/ram2gs_asm.o: obj ram2gs_asm.s
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ca65 ram2gs_asm.s -o obj/ram2gs_asm.o
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bin/ram2e.dbg.sys: bin obj/ram2e.dbg.o
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ld65 -o bin/ram2e.dbg.sys obj/ram2e.dbg.o -C apple2enh-system.cfg --lib apple2enh.lib -D __EXEHDR__=0
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obj/ram2gs.o: obj ram2gs.c
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cc65 ram2gs.c -O --cpu 6502 -t apple2enh -o obj/ram2gs.s
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ca65 obj/ram2gs.s -o obj/ram2gs.o
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RAM2Eutil.po: bin/ram2e.sys
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obj/ram2gs.dbg.o: obj ram2gs.c
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cc65 ram2gs.c -O --cpu 6502 -t apple2enh -o obj/ram2gs.dbg.s -DSKIP_RAM2GS_DETECT
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ca65 obj/ram2gs.dbg.s -o obj/ram2gs.dbg.o
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obj/util.o: obj util.c
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cc65 util.c -O --cpu 6502 -t apple2enh -o obj/util.s
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ca65 obj/util.s -o obj/util.o
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bin/main.sys: bin obj/main.o obj/ram2e.o obj/ram2gs.o obj/ram2gs_asm.o obj/util.o
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ld65 -o bin/main.sys obj/main.o obj/ram2gs.o obj/ram2e.o obj/ram2gs_asm.o obj/util.o -C apple2enh-system.cfg --lib apple2enh.lib -D __EXEHDR__=0
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bin/main.dbg.sys: bin obj/main.o obj/ram2e.dbg.o obj/ram2gs.dbg.o obj/ram2gs_asm.o obj/util.o
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ld65 -o bin/main.dbg.sys obj/main.o obj/ram2gs.dbg.o obj/ram2e.dbg.o obj/ram2gs_asm.o obj/util.o -C apple2enh-system.cfg --lib apple2enh.lib -D __EXEHDR__=0
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RAM2Eutil.po: bin/main.sys
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cp prodos140.po bin/RAM2Eutil.po
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cat bin/ram2e.sys | java -jar ./AppleCommander-ac-1.6.0.jar -p bin/RAM2Eutil.po ram2e.system sys 0x2000
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cat bin/main.sys | java -jar ./AppleCommander-ac-1.6.0.jar -p bin/RAM2Eutil.po gwram.system sys 0x2000
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RAM2Eutil.dbg.po: bin/ram2e.dbg.sys
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RAM2Eutil.dbg.po: bin/main.dbg.sys
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cp prodos140.po bin/RAM2Eutil.dbg.po
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cat bin/ram2e.dbg.sys | java -jar ./AppleCommander-ac-1.6.0.jar -p bin/RAM2Eutil.dbg.po ram2e.system sys 0x2000
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cat bin/main.dbg.sys | java -jar ./AppleCommander-ac-1.6.0.jar -p bin/RAM2Eutil.dbg.po gwram.system sys 0x2000
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.PHONY: clean
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clean:
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rm -fr bin obj
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Binary file not shown.
BIN
bin/RAM2Eutil.po
BIN
bin/RAM2Eutil.po
Binary file not shown.
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#include <conio.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "ram2e.h"
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#include "ram2gs.h"
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int main(void)
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{
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// First clear screen
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clrscr();
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// Check machine type
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switch ((get_ostype() & 0xF0)) {
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case APPLE_IIE:
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ram2e_main();
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break;
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case APPLE_IIGS:
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ram2gs_main();
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break;
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default:
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// If not on IIe or IIgs, show an error message and quit
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gotoxy(0, 8);
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cputs(" THIS PROGRAM REQUIRES APPLE IIE OR IIGS");
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gotoxy(0, 10);
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cputs(" PRESS ANY KEY TO QUIT.");
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cgetc(); // Wait for key
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clrscr(); // Clear screen before quitting
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return EXIT_SUCCESS;
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break;
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}
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}
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90
ram2e.c
90
ram2e.c
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@ -5,20 +5,10 @@
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#include <ctype.h>
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#include <stdint.h>
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#define true 1
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#define false 0
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#include "util.h"
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#define VBL ((signed char*)0xC019)
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const uint8_t SPIN_HALFCYCLES = 3;
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const uint8_t SPIN_FRAMESPERCHAR = 4;
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#define PB0 ((char*)0xC061)
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#define PB1 ((char*)0xC062)
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static char read_applekey(void) { return (*PB0 | *PB1) & 0x80; }
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char _cmd;
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char _arg;
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static char _cmd;
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static char _arg;
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/* ram2e_cmd(...) issues a coded command+argument sequence to the RAM2E */
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static void ram2e_cmd(char cmd, char arg) {
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// Load operation and data bytes into X and Y registers
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@ -100,7 +90,7 @@ static char auxram_detect() {
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}
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/* ram2e_detect() returns true if a RAM2E II has been detected */
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uint8_t _detect;
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static uint8_t _detect;
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static char ram2e_detect() {
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#ifdef SKIP_RAM2E_DETECT
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return true;
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@ -148,8 +138,8 @@ static char ram2e_detect() {
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}
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/* ramworks_getsize() returns the number of banks of RAM2E aux memory */
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uint8_t _rwsize;
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uint8_t _rwnot16mb;
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static uint8_t _rwsize;
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static uint8_t _rwnot16mb;
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static uint16_t ramworks_getsize() {
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_rwnot16mb = 1; // Set "not 16 mb" flag
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CountLoop:
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__asm__("sty $C073"); // Set bank
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__asm__("cpy $00"); // Is bank num stored at address 0?
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__asm__("bne %g", NotMem); // If not, skip increment
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__asm__("bne %g", AfterInc); // If not, skip increment
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__asm__("inx"); // If so, increment bank count
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__asm__("bne %g", NotMem); // Skip next if x!=0
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__asm__("bne %g", AfterInc); // Skip next if x!=0
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__asm__("stx %v", _rwnot16mb); // Othwerwise rolled over so clear rwnot16mb
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NotMem:
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AfterInc:
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__asm__("iny"); // Move to next bank
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__asm__("bne %g", CountLoop); // Repeat if not on bank 0
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cputs("Press [Q] to quit without saving.");
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}
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static void spin(uint8_t x, uint8_t y) {
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char i;
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// Sync to frame before starting
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while (*VBL >= 0);
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// Wait and animate spinner.
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// Spin_half
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for (i = 0; i < SPIN_HALFCYCLES; i++) {
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char j;
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for (j = 0; j < 4; j++) {
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char spinchar;
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char k;
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// Assign spinner char based on j
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switch (j) {
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case 0: spinchar = '\\'; break;
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case 1: spinchar = '|'; break;
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case 2: spinchar = '/'; break;
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case 3: spinchar = '-'; break;
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default: spinchar = '-'; break;
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}
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// Write it to screen
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gotoxy(x, y);
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putchar(spinchar);
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// Wait specificed number of frames
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for (k = 0; k < SPIN_FRAMESPERCHAR; k++) {
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while (*VBL < 0);
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while (*VBL >= 0);
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}
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}
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}
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// Wait a frame when finished
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while (*VBL < 0);
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while (*VBL >= 0);
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}
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int main(void)
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int ram2e_main(void)
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{
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char mask;
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char nvm;
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int reset_count;
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// First clear screen
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clrscr();
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// Make sure we are running on an Apple IIe
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if((get_ostype() & 0xF0) != APPLE_IIE) {
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// If not on Apple IIe, show an error message and quit
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gotoxy(0, 8);
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cputs(" THIS PROGRAM REQUIRES AN APPLE IIE.");
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gotoxy(0, 10);
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cputs(" PRESS ANY KEY TO QUIT.");
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cgetc(); // Wait for key
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clrscr(); // Clear screen before quitting
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return EXIT_SUCCESS;
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}
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// Check for RAM2E
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if(!auxram_detect() || !ram2e_detect()) {
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// If no RAM2E, show an error message and quit
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reset_count = 0;
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while (true) {
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// Set capacity mask or quit according to keypress.
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switch (toupper(cgetc())) {
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switch (toupper(cgetc() & 0x7F)) {
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case 'Q' : {
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clrscr();
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return EXIT_SUCCESS;
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} default: continue;
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}
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// Check if pressed with apple key.
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// If so, save to nonvolatile memory.
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// Check if pressed with apple key. If so, save to nonvolatile memory.
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if (read_applekey()) { nvm = true; }
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break;
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}
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#ifndef RAM2E_H
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#define RAM2E_H
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int ram2e_main(void);
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#endif /* RAM2E_H */
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#include <stdlib.h>
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#include <conio.h>
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#include <string.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <stdint.h>
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#include "util.h"
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#include "ram2gs_asm.h"
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static void ram2gs_erase() { ram2gs_cmd(0x28); }
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static void ram2gs_program() { ram2gs_cmd(0x24); }
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static void ram2gs_set4mb() { ram2gs_cmd(0x10); }
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static void ram2gs_set8mb() { ram2gs_cmd(0x11); }
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static void ram2gs_setnvm(char en8meg) {
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char i;
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// Clock in 0 to enable this setting entry
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ram2gs_cmd(0x20);
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ram2gs_cmd(0x22);
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if (en8meg) {
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// Clock in 1 to enable 8mb
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ram2gs_cmd(0x21);
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ram2gs_cmd(0x23);
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} else {
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// Clock in 0 to disable 8mb
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ram2gs_cmd(0x20);
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ram2gs_cmd(0x22);
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}
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// Clock in 14 dummy "1"s
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for (i = 0; i < 14; i++) {
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ram2gs_cmd(0x21);
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ram2gs_cmd(0x23);
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}
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ram2gs_program();
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}
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static void menu(void)
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{
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uint8_t bankcount = ram2gs_getsize();
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gotoxy(5, 1);
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cputs("-- RAM2GS Capacity Settings --");
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gotoxy(4, 3);
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printf("Current RAM2GS capacity: %d kB", bankcount * 64);
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gotoxy(1, 6);
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cputs("Select desired memory capacity:");
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gotoxy(4, 8);
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cputs("1. 4 megabytes");
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gotoxy(4, 10);
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cputs("2. 8 megabytes");
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gotoxy(1, 18);
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cputs("Capacity will be saved until power-off.");
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gotoxy(1, 20);
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cputs("To remember capacity setting in");
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gotoxy(1, 21);
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cputs("nonvolatile memory, press Apple+number.");
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gotoxy(1, 23);
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cputs("Press [Q] to quit without saving.");
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}
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int ram2gs_main(void)
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{
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char en8meg;
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char nvm;
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int reset_count;
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// Check for RAM2GS
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#ifndef SKIP_RAM2GS_DETECT
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if(!ram2gs_detect()) {
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// If no RAM2GS, show an error message and quit
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gotoxy(0, 8);
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cputs(" No RAM2GS II detected.");
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gotoxy(0, 10);
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cputs(" Press any key to quit.");
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cgetc(); // Wait for key
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clrscr(); // Clear screen before quitting
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return EXIT_SUCCESS;
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}
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#endif
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menu(); // Print menu
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// Get user choice from menu
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en8meg = 0;
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nvm = 0;
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reset_count = 0;
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while (true) {
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// Set capacity or quit according to keypress.
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switch (toupper(cgetc() & 0x7F)) {
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case 'Q' : {
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clrscr();
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return EXIT_SUCCESS;
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}
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case '!': nvm = true;
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case '1': en8meg = 0; ram2gs_set4mb(); break;
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case '@': nvm = true;
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case '2': en8meg = 1; ram2gs_set8mb(); break;
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case 'R': {
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reset_count++;
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if (reset_count >= 100) {
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// Show message about saving.
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clrscr(); // Clear screen
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gotoxy(1, 8);
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cputs("Resetting RAM2GS settings.");
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gotoxy(1, 9);
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cputs("Do not turn off your Apple.");
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ram2gs_erase(); // Erase RAM2GS settings memory
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ram2gs_set8mb(); // Enable 8 megabytes now
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// Wait for >= 500ms on even the fastest systems.
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spin(32, 8);
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// Show success message and quit
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clrscr(); // Clear screen
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gotoxy(1, 8);
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cputs("RAM2GS settings reset successfully.");
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goto end;
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}
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} default: continue;
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}
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// Check if pressed with apple key. If so, save to nonvolatile memory.
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if (read_applekey()) { nvm = true; }
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break;
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}
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// Clear screen in preparation to show saving or success message.
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clrscr();
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if (nvm) { // Save in NVM if requested.
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// Show message about saving.
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gotoxy(1, 8);
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cputs("Saving RAM2GS capacity setting.");
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gotoxy(1, 9);
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cputs("Do not turn off your Apple.");
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// Save capacity in nonvolatile memory.
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ram2gs_setnvm(en8meg);
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// Wait for >= 500ms on even the fastest systems.
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spin(33, 8);
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// Print success message
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clrscr(); // Clear screen
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gotoxy(1, 8);
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cputs("RAM2GS capacity saved successfully.");
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} else { // Print success message if not saving in NVM.
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gotoxy(1, 8);
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cputs("RAM2GS capacity set successfully.");
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}
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end:
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if (nvm) { // Show end message for nonvolatile save
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gotoxy(1, 10);
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cputs("You may now turn off your Apple.");
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gotoxy(1, 12);
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cputs("You may also reset your Apple for");
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gotoxy(1, 13);
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cputs("the setting change to take effect.");
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} else { // Show end message for volatile save
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gotoxy(1, 10);
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cputs("Please reset your Apple for");
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gotoxy(1, 11);
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cputs("the setting change to take effect.");
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}
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// Don't quit. Instead leave prompt asking user to reset.
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while(1) { cgetc(); }
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}
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#ifndef RAM2GS_H
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#define RAM2GS_H
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int ram2gs_main(void);
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#endif /* RAM2GS_H */
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#ifndef RAM2GS_ASM_H
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#define RAM2GS_ASM_H
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uint8_t __fastcall__ ram2gs_getsize(void);
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uint8_t __fastcall__ ram2gs_detect(void);
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uint8_t __fastcall__ ram2gs_cmd(char cmd);
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#endif /* RAM2GS_ASM_H */
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.setcpu "65816"
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.autoimport on
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.importzp sp
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.export _ram2gs_getsize
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.export _ram2gs_detect
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.export _ram2gs_cmd
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.macro A8
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sep #$20 ; put the 65C816 in 8-bit accumulator mode
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.A8
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.endmacro
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.macro I8
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sep #$10 ; put the 65C816 in 8-bit index register mode
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.I8
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.endmacro
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.macro AI8
|
||||
sep #$30 ; put the 65C816 in 8-bit accumulator and index register mode
|
||||
.A8
|
||||
.I8
|
||||
.endmacro
|
||||
|
||||
.macro A16
|
||||
rep #$20 ; put the 65C816 in 8-bit accumulator mode
|
||||
.A16
|
||||
.endmacro
|
||||
|
||||
.macro I16
|
||||
rep #$10 ; put the 65C816 in 8-bit index register mode
|
||||
.I16
|
||||
.endmacro
|
||||
|
||||
.macro AI16
|
||||
rep #$30 ; put the 65C816 in 8-bit accumulator and index register mode
|
||||
.A16
|
||||
.I16
|
||||
.endmacro
|
||||
|
||||
.segment "CODE"
|
||||
|
||||
.proc _gsram_getsize: near
|
||||
.A8
|
||||
.I8
|
||||
; Preamble
|
||||
sei ; Disable interrupts
|
||||
clc ; Clear carry
|
||||
xce ; Clear emulation bit
|
||||
php ; Push status
|
||||
phb ; Push bank
|
||||
AI8
|
||||
|
||||
; Store bank number at address 0xFFFF in each bank
|
||||
ldy #$7F ; Start at bank 0x7F
|
||||
BankSetLoop:
|
||||
phy ; Push future bank
|
||||
plb ; Pull bank
|
||||
lda $8000 ; Get address 0xFFFF in this bank
|
||||
pha ; Save old address 0xFFFF contents
|
||||
tya ; A = Y
|
||||
eor #$FF ; Flip all bits
|
||||
tay ; Y = A
|
||||
sty $8000 ; Overwrite address 0xFFFF with bank number
|
||||
eor #$FF ; Flip all bits back
|
||||
tay ; Y = A
|
||||
dey ; Decrement bank number
|
||||
cpy #$FF ; Have we wrapped around?
|
||||
bne BankSetLoop ; If not, repeat
|
||||
|
||||
; Count banks with matching bank number
|
||||
ldy #$00 ; Y is bank
|
||||
ldx #$00 ; X is count
|
||||
CountLoop:
|
||||
phy ; Push future bank
|
||||
plb ; Pull bank
|
||||
tya ; A = Y
|
||||
eor #$FF ; Flip all bits
|
||||
tay ; Y = A
|
||||
cpy $8000 ; Is bank num stored at address 0xFFFF?
|
||||
bne AfterInc ; If not, skip increment
|
||||
inx ; If so, increment bank count
|
||||
AfterInc:
|
||||
eor #$FF ; Flip all bits back
|
||||
tay ; Y = A
|
||||
pla ; Get contents to restore
|
||||
sta $8000 ; Restore address 0xFFFF in this bank
|
||||
iny ; Move to next bank
|
||||
cpy #$80 ; Are we at bank 0x80 yet?
|
||||
bne CountLoop ; If not, repeat
|
||||
|
||||
; Postamble
|
||||
plb ; Restore bank
|
||||
plp ; Restore status
|
||||
xce ; Restore emulation bit
|
||||
cli ; Enable interrupts
|
||||
txa ; Transfer bank count to A
|
||||
rts
|
||||
.endproc
|
||||
|
||||
.proc _ram2gs_getsize: near
|
||||
.A8
|
||||
.I8
|
||||
; Preamble
|
||||
sei ; Disable interrupts
|
||||
clc ; Clear carry
|
||||
xce ; Clear emulation bit
|
||||
php ; Push status
|
||||
phb ; Push bank
|
||||
AI8
|
||||
|
||||
; Go to bank 3F
|
||||
ldy #$3F
|
||||
phy
|
||||
plb
|
||||
; Save 3F/3456
|
||||
ldx $3456
|
||||
|
||||
; Go to bank 7F
|
||||
ldy #$7F
|
||||
phy
|
||||
plb
|
||||
; Invert 7F/3456
|
||||
lda $3456
|
||||
eor #$FF
|
||||
sta $3456
|
||||
|
||||
; Go to bank 3F
|
||||
ldy #$3F
|
||||
phy
|
||||
plb
|
||||
; Has 3F/3456 changed?
|
||||
cpx $3456
|
||||
php
|
||||
|
||||
; Go to bank 7F
|
||||
ldy #$7F
|
||||
phy
|
||||
plb
|
||||
; Restore 7F/3456
|
||||
eor #$FF
|
||||
sta $3456
|
||||
|
||||
; Check result
|
||||
ldx #$80
|
||||
plp
|
||||
beq _ram2gs_getsize_return
|
||||
ldx #$40
|
||||
|
||||
; Postamble
|
||||
_ram2gs_getsize_return:
|
||||
plb ; Restore bank
|
||||
plp ; Restore status
|
||||
xce ; Restore emulation bit
|
||||
cli ; Enable interrupts
|
||||
txa ; Transfer bank count to A
|
||||
rts
|
||||
.endproc
|
||||
|
||||
|
||||
.proc _unswap: near
|
||||
.A8
|
||||
.I8
|
||||
; Save current bank and accumulator
|
||||
phb
|
||||
pha
|
||||
; Switch to bank 0xFB
|
||||
lda #$FB
|
||||
pha
|
||||
plb
|
||||
; Submit C1AD
|
||||
lda #$C1
|
||||
sta $FFFE
|
||||
lda #$AD
|
||||
sta $FFFF
|
||||
; Pull and submit command
|
||||
lda #$00
|
||||
sta $FFFD
|
||||
; Restore accumulator and bank and return
|
||||
pla
|
||||
plb
|
||||
rts
|
||||
.endproc
|
||||
|
||||
.proc _swap: near
|
||||
.A8
|
||||
.I8
|
||||
; Save current bank and accumulator
|
||||
phb
|
||||
pha
|
||||
; Switch to bank 0xFB
|
||||
lda #$FB
|
||||
pha
|
||||
plb
|
||||
; Submit C1AD
|
||||
lda #$C1
|
||||
sta $FFFE
|
||||
lda #$AD
|
||||
sta $FFFF
|
||||
; Pull and submit command
|
||||
lda #$01
|
||||
sta $FFFD
|
||||
; Restore accumulator and bank and return
|
||||
pla
|
||||
plb
|
||||
rts
|
||||
.endproc
|
||||
|
||||
.proc _ram2gs_detect: near
|
||||
.A8
|
||||
.I8
|
||||
; Preamble
|
||||
sei ; Disable interrupts
|
||||
clc ; Clear carry
|
||||
xce ; Clear emulation bit
|
||||
php ; Push status
|
||||
phb ; Push bank
|
||||
AI8
|
||||
|
||||
; Switch to bank 0x3F
|
||||
lda #$3F
|
||||
pha
|
||||
plb
|
||||
|
||||
; Unswap
|
||||
jsr _unswap
|
||||
; Save unswapped 3F/8000
|
||||
lda $8000
|
||||
pha
|
||||
; Swap
|
||||
jsr _swap
|
||||
; Save swapped 3F/8000
|
||||
lda $8000
|
||||
pha
|
||||
|
||||
; Store 0xFF in swapped
|
||||
lda #$FF
|
||||
sta $8000
|
||||
; Verify 0xFF stored
|
||||
lda $8000
|
||||
cmp #$FF
|
||||
bne _ram2gs_detect_fail
|
||||
|
||||
; Unswap
|
||||
jsr _unswap
|
||||
; Store 0x00 in unswapped
|
||||
lda #$00
|
||||
sta $8000
|
||||
; Verify 0x00 stored
|
||||
lda $8000
|
||||
cmp #$00
|
||||
bne _ram2gs_detect_fail
|
||||
|
||||
; Swap
|
||||
jsr _swap
|
||||
; Verify 0xFF stored
|
||||
lda $8000
|
||||
cmp #$FF
|
||||
bne _ram2gs_detect_fail
|
||||
|
||||
; Get success return value and jump to postamble
|
||||
ldx #$01 ; Get success falue
|
||||
bne _ram2gs_detect_return ; Jump to postamble
|
||||
|
||||
; Fail
|
||||
_ram2gs_detect_fail:
|
||||
ldx #$00 ; Get fail value
|
||||
|
||||
; Postamble
|
||||
_ram2gs_detect_return:
|
||||
jsr _swap ; Swap
|
||||
pla ; Get value to restore to swapped bank 3F
|
||||
sta $8000 ; Restore
|
||||
jsr _unswap ; Unswap
|
||||
pla ; Get value to restore to unswapped bank 3F
|
||||
sta $8000 ; Restore
|
||||
txa ; Put return value in accumulator
|
||||
plb ; Restore bank
|
||||
plp ; Restore status
|
||||
xce ; Restore emulation bit
|
||||
cli ; Enable interrupts
|
||||
rts
|
||||
.endproc
|
||||
|
||||
.proc _ram2gs_cmd: near
|
||||
.A8
|
||||
.I8
|
||||
; Save current bank and command in accumulator
|
||||
phb
|
||||
pha
|
||||
; Switch to bank 0xFB
|
||||
lda #$FB
|
||||
pha
|
||||
plb
|
||||
; Submit C1AD
|
||||
lda #$C1
|
||||
sta $FFFE
|
||||
lda #$AD
|
||||
sta $FFFF
|
||||
; Pull and submit command
|
||||
pla
|
||||
sta $FFFD
|
||||
; Restore bank and return
|
||||
plb
|
||||
rts
|
||||
.endproc
|
|
@ -0,0 +1,52 @@
|
|||
#include "util.h"
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
#include <conio.h>
|
||||
|
||||
#define PB0 ((char*)0xC061)
|
||||
#define PB1 ((char*)0xC062)
|
||||
char read_applekey(void) { return ((*PB0) | (*PB1)) & 0x80; }
|
||||
|
||||
#define VBL ((signed char*)0xC019)
|
||||
#define SPIN_HALFCYCLES 3
|
||||
#define SPIN_FRAMESPERCHAR 4
|
||||
void spin(uint8_t x, uint8_t y) {
|
||||
char i;
|
||||
|
||||
// Sync to frame before starting
|
||||
while (*VBL >= 0);
|
||||
|
||||
// Wait and animate spinner.
|
||||
// Spin_half
|
||||
for (i = 0; i < SPIN_HALFCYCLES; i++) {
|
||||
char j;
|
||||
for (j = 0; j < 4; j++) {
|
||||
char spinchar;
|
||||
char k;
|
||||
|
||||
// Assign spinner char based on j
|
||||
switch (j) {
|
||||
case 0: spinchar = '\\'; break;
|
||||
case 1: spinchar = '|'; break;
|
||||
case 2: spinchar = '/'; break;
|
||||
case 3: spinchar = '-'; break;
|
||||
default: spinchar = '-'; break;
|
||||
}
|
||||
|
||||
// Write it to screen
|
||||
gotoxy(x, y);
|
||||
putchar(spinchar);
|
||||
|
||||
// Wait specificed number of frames
|
||||
for (k = 0; k < SPIN_FRAMESPERCHAR; k++) {
|
||||
while (*VBL < 0);
|
||||
while (*VBL >= 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Wait a frame when finished
|
||||
while (*VBL < 0);
|
||||
while (*VBL >= 0);
|
||||
}
|
Loading…
Reference in New Issue