282 lines
6.3 KiB
C
282 lines
6.3 KiB
C
/*
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* Copyright (c) 2024 Scott Duensing, scott@kangaroopunch.com
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/*
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* Z-Machine for the Foenix F256 computers.
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*
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* F256 machines are 65c02 based systems with 512k of banked RAM.
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* As such, this ZIP is going to load the story entirely into "high"
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* memory (above the 64k accessable to the CPU) and page things in
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* and out as needed.
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*
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* To keep library code at a minimum, we'll also statically allocate
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* as much as possible and do other "bad" things now frowned upon in
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* modern development. :-)
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*/
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#include "f256.h"
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#include "portme.h"
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#include "story.h"
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#include "memory.h"
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#include "state.h"
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#include "interpreter.h"
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#include "../../include/text.h"
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#define BASE_ADDRESS 0x10000
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static char *_saveName = 0;
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void portAttributeSet(byte attribute) {
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switch (attribute) {
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case TEXT_ATTR_NORMAL:
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textSetColor(7, 1);
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break;
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case TEXT_ATTR_REVERSE:
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textSetColor(1, 7);
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break;
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case TEXT_ATTR_BOLD:
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textSetColor(15, 1);
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break;
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case TEXT_ATTR_EMPHASIS:
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textSetColor(14, 1);
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break;
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}
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}
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uint8_t portByteGet(uint32_t address) {
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return FAR_PEEK(BASE_ADDRESS + address);
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}
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void portByteSet(uint32_t address, uint8_t value) {
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FAR_POKE(BASE_ADDRESS + address, value);
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}
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void portCharGetPos(byte *x, byte *y) {
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byte tx;
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byte ty;
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textGetXY(&tx, &ty);
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// ZIP uses 1-based coordinates.
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*x = tx + 1;
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*y = ty + 1;
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}
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void portCharPrint(char c) {
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static char ch[2] = { 0, 0 };
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ch[0] = c;
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textPrint(ch);
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}
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void portCharSetPos(byte x, byte y) {
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// ZIP uses 1-based coordinates.
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textGotoXY(x - 1, y - 1);
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}
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void portDie(char *fmt, ...) {
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#ifdef DEBUGGING
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printf("%s\n", fmt); // Yeah, this isn't right.
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#endif
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exit(1);
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}
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bool portFileRestore(void) {
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FILE *in;
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bool ok = false;
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uint32_t i;
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byte b;
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in = fopen(_saveName, "rb");
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if (in) {
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ok = true;
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// Read in PC.
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ok &= (fread(&__state.pc, sizeof(__state.pc), 1, in) == 1);
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// Read in SP.
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ok &= (fread(&__state.sp, sizeof(__state.sp), 1, in) == 1);
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// Read in BP.
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ok &= (fread(&__state.bp, sizeof(__state.bp), 1, in) == 1);
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// Read in dynamic game RAM.
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for (i=0; i<storyStaticMemoryBaseAddress(); i++) {
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ok &= (fread(&b, 1, 1, in) == 1);
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ZPOKE(i, b);
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}
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// Read in stack.
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ok &= (fread(__state.stack, sizeof(__state.stack[0]), __state.sp, in) == __state.sp);
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fclose(in);
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}
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return ok;
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}
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bool portFileSave(void) {
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FILE *out;
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bool ok = false;
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uint32_t i;
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byte b;
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out = fopen(_saveName, "wb");
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if (out) {
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ok = true;
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// Write out PC.
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ok &= (fwrite(&__state.pc, sizeof(__state.pc), 1, out) == 1);
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// Write out SP.
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ok &= (fwrite(&__state.sp, sizeof(__state.sp), 1, out) == 1);
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// Write out BP.
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ok &= (fwrite(&__state.bp, sizeof(__state.bp), 1, out) == 1);
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// Write out dynamic game RAM.
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for (i=0; i<storyStaticMemoryBaseAddress(); i++) {
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b = ZPEEK(i);
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ok &= (fwrite(&b, 1, 1, out) == 1);
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}
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// Write out stack.
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ok &= (fwrite(__state.stack, sizeof(__state.stack[0]), __state.sp, out) == __state.sp);
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fclose(out);
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}
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return ok;
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}
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char portCharGet(void) {
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#if 0
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static char playback[] = "open mailbox\ntake leaflet\nread leaflet\ndrop leaflet\n";
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static uint32_t pointer = 0;
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if (pointer < libStrLen(playback)) return playback[pointer++];
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#endif
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return getchar();
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}
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uint16_t portRandomGet(int16_t range) {
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// If range is zero, randomize with "best" random seed.
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// If range is negative, use the positive value to seed.
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if (range == 0) return 0;
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if (range < 0) {
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randomSeed(-range);
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return 0;
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}
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return (randomRead() % range) + 1;
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}
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void portStoryLoad(void) {
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// On the F256, the story is loaded into RAM along with the ZIP.
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// ***TODO*** This likely breaks the "restart" command.
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// Later, we probably want to see if the user has a memory expansion
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// installed. If they do, we can use it and then use the lower memory
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// for graphics and sound.
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storyChecksumCalculate();
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}
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uint16_t portWordGet(uint32_t address) {
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return SWAP_UINT16(FAR_PEEKW(BASE_ADDRESS + address));
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}
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void portWordSet(uint32_t address, uint16_t value) {
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FAR_POKEW(BASE_ADDRESS + address, SWAP_UINT16(value));
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}
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int main(void) {
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byte c;
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byte colors[16][3] = {
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{ 0x00, 0x00, 0x00 },
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{ 0x00, 0x00, 0xaa },
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{ 0x00, 0xaa, 0x00 },
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{ 0x00, 0xaa, 0xaa },
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{ 0xaa, 0x00, 0x00 },
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{ 0xaa, 0x00, 0xaa },
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{ 0xaa, 0x55, 0x00 },
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{ 0xaa, 0xaa, 0xaa },
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{ 0x55, 0x55, 0x55 },
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{ 0x55, 0x55, 0xff },
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{ 0x55, 0xff, 0x55 },
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{ 0x55, 0xff, 0xff },
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{ 0xff, 0x55, 0x55 },
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{ 0xff, 0x55, 0xff },
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{ 0xff, 0xff, 0x55 },
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{ 0xff, 0xff, 0xff }
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};
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_saveName = "zork1.sav";
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f256Init();
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// Load EGA palette into text CLUT.
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for (c=0; c<16; c++) {
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textDefineForegroundColor(c, colors[c][0], colors[c][1], colors[c][2]);
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textDefineBackgroundColor(c, colors[c][0], colors[c][1], colors[c][2]);
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}
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textEnableBackgroundColors(true);
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textSetColor(15, 0);
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textPrint("Welcome to MUDDLE Beta 1, Another Z-Machine!\n\n");
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textSetColor(7, 0);
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textPrint("Copyright 2024 Scott Duensing, All Rights Reserved.\n");
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textPrint("Kangaroo Punch Studios https://kangaroopunch.com\n\n\n");
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textSetColor(8, 0);
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textPrint("Thinking...");
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stateReset();
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portStoryLoad();
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opcodesSetup();
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storySetup(80, 30);
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textSetColor(7, 1);
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textClear();
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textSetCursor(199);
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interpreterRun();
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return 0;
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}
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