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4 changed files with 60 additions and 75 deletions

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@ -1,4 +1,4 @@
TARGETS = forth stage blkfs
TARGETS = forth stage
OBJS = emul.o libz80/libz80.o
BIN2C = ../tools/bin2c
BLKPACK = ../tools/blkpack
@ -18,14 +18,17 @@ $(BLKUNPACK): $(BLKPACK)
forth-bin.h: $(BIN2C)
$(BIN2C) KERNEL < forth.bin > $@
stage: stage.c $(OBJS) forth-bin.h
$(CC) stage.c -DBLKFS_PATH=\"`pwd`/blkfs\" $(OBJS) -o $@
stage: stage.c $(OBJS) forth-bin.h blkfs-bin.h
$(CC) stage.c $(OBJS) -o $@
blkfs: $(BLKPACK)
$(BLKPACK) ../blk > $@
forth: forth.c $(OBJS) forth-bin.h
$(CC) forth.c -DBLKFS_PATH=\"`pwd`/blkfs\" $(OBJS) -lncurses -o $@
blkfs-bin.h: blkfs $(BIN2C)
$(BIN2C) BLKFS < blkfs > $@
forth: forth.c $(OBJS) forth-bin.h blkfs-bin.h
$(CC) forth.c $(OBJS) -o $@
libz80/libz80.o: libz80/z80.c
$(MAKE) -C libz80/codegen opcodes
@ -36,7 +39,7 @@ emul.o: emul.c
.PHONY: updatebootstrap
updatebootstrap: stage xcomp.fs pack
updatebootstrap: stage xcomp.fs
./stage < xcomp.fs > forth.bin
.PHONY: pack
@ -49,4 +52,5 @@ unpack:
.PHONY: clean
clean:
rm -f $(TARGETS) emul.o *-bin.h blkfs
rm -f $(TARGETS) emul.o *-bin.h stage{1,2}.bin blkfs
$(MAKE) -C ../tools clean

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@ -3,11 +3,6 @@
This folder contains a couple of tools running under the [libz80][libz80]
emulator.
## Requirements
You need `ncurses` to build the `forth` executable. In debian-based distros,
it's `libncurses5-dev`.
## Not real hardware
In the few emulated apps described below, we don't try to emulate real hardware
@ -25,7 +20,7 @@ First, make sure that the `libz80` git submodule is checked out. If not, run
After that, you can run `make` and it builds the `forth` interpreter.
Run `./forth` to get the Collapse OS prompt. Type `0 LIST` for help.
Run `./forth` to get the COllapse OS prompt. Type `0 LIST` for help.
## Problems?

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@ -1,10 +1,10 @@
#include <stdint.h>
#include <stdio.h>
#include <unistd.h>
#include <curses.h>
#include <termios.h>
#include "emul.h"
#include "forth-bin.h"
#include "blkfs-bin.h"
// in sync with glue.asm
#define RAMSTART 0x900
@ -24,12 +24,7 @@ static uint16_t blkid = 0;
static uint8_t iord_stdio()
{
int c;
if (fp != NULL) {
c = getc(fp);
} else {
c = getch();
}
int c = getc(fp);
if (c == EOF) {
c = 4; // ASCII EOT
}
@ -38,13 +33,7 @@ static uint8_t iord_stdio()
static void iowr_stdio(uint8_t val)
{
if (fp != NULL) {
putchar(val);
} else {
if (val >= 0x20 || val == '\n') {
echochar(val);
}
}
putchar(val);
}
static void iowr_ret(uint8_t val)
@ -80,17 +69,41 @@ static void iowr_blkdata(uint8_t val)
}
}
int run()
int main(int argc, char *argv[])
{
#ifdef BLKFS_PATH
fprintf(stderr, "Using blkfs %s\n", BLKFS_PATH);
blkfp = fopen(BLKFS_PATH, "r+");
if (!blkfp) {
fprintf(stderr, "Can't open\n");
bool tty = false;
struct termios termInfo;
if (argc == 2) {
fp = fopen(argv[1], "r");
if (fp == NULL) {
fprintf(stderr, "Can't open %s\n", argv[1]);
return 1;
}
} else if (argc == 1) {
fp = stdin;
tty = isatty(fileno(stdin));
if (tty) {
// Turn echo off: the shell takes care of its own echoing.
if (tcgetattr(0, &termInfo) == -1) {
printf("Can't setup terminal.\n");
return 1;
}
termInfo.c_lflag &= ~ECHO;
termInfo.c_lflag &= ~ICANON;
tcsetattr(0, TCSAFLUSH, &termInfo);
}
} else {
fprintf(stderr, "Usage: ./forth [filename]\n");
return 1;
}
blkfp = fopen("blkfs", "r+");
if (blkfp) {
fprintf(stderr, "Using blkfs file\n");
} else {
blkfp = fmemopen((char*)BLKFS, sizeof(BLKFS), "r");
fprintf(stderr, "Using in-memory read-only blkfs\n");
}
#else
blkfp = NULL;
#endif
Machine *m = emul_init();
m->ramstart = RAMSTART;
m->iord[STDIO_PORT] = iord_stdio;
@ -107,34 +120,16 @@ int run()
// Run!
while (emul_step());
if (tty) {
printf("\nDone!\n");
termInfo.c_lflag |= ECHO;
termInfo.c_lflag |= ICANON;
tcsetattr(0, TCSAFLUSH, &termInfo);
emul_printdebug();
}
if (blkfp != NULL) {
fclose(blkfp);
}
fclose(fp);
return retcode;
}
int main(int argc, char *argv[])
{
if (argc == 2) {
fp = fopen(argv[1], "r");
if (fp == NULL) {
fprintf(stderr, "Can't open %s\n", argv[1]);
return 1;
}
int ret = run();
fclose(fp);
return ret;
} else if (argc == 1) {
fp = NULL;
initscr(); cbreak(); noecho(); nl(); clear();
scrollok(stdscr, 1);
int ret = run();
nocbreak(); echo(); endwin();
printf("\nDone!\n");
emul_printdebug();
return ret;
} else {
fprintf(stderr, "Usage: ./forth [filename]\n");
return 1;
}
}

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@ -3,10 +3,7 @@
#include <unistd.h>
#include "emul.h"
#include "forth-bin.h"
#ifndef BLKFS_PATH
#error BLKFS_PATH needed
#endif
#include "blkfs-bin.h"
/* Staging binaries
@ -40,7 +37,7 @@ static int running;
static uint16_t start_here = 0;
static uint16_t end_here = 0;
static uint16_t blkid = 0;
static FILE *blkfp;
static unsigned int blkpos = 0;
static uint8_t iord_stdio()
{
@ -68,22 +65,16 @@ static void iowr_blk(uint8_t val)
{
blkid <<= 8;
blkid |= val;
fseek(blkfp, blkid*1024, SEEK_SET);
blkpos = blkid * 1024;
}
static uint8_t iord_blkdata()
{
return getc(blkfp);
return BLKFS[blkpos++];
}
int main(int argc, char *argv[])
{
fprintf(stderr, "Using blkfs %s\n", BLKFS_PATH);
blkfp = fopen(BLKFS_PATH, "r+");
if (!blkfp) {
fprintf(stderr, "Can't open\n");
return 1;
}
Machine *m = emul_init();
m->ramstart = RAMSTART;
m->iord[STDIO_PORT] = iord_stdio;