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#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <rs232.h>
#include "uip.h"
#include "common.h"
#include "aexec.h"
#include "fujichat.h"
int __fastcall__ (*atari_exec_p)(char *) = (int __fastcall__ (*)(char *))0x600;
fuji_conf_t *config = (fuji_conf_t *)CONFIG_ADDRESS;
void disable_break(void) {
asm("lda $10"); /* POKMSK */
asm("and #$7f");
asm("sta $10"); /* POKMSK */
asm("sta $D20E"); /* IRQEN */
}
/* helper for fuji_cgetc */
void __fastcall__ call_keybdv(void) {
asm("lda $E420+5"); /* KEYBDV */
asm("pha");
asm("lda $E420+4");
asm("pha");
asm("lda #12");
asm("sta $2A"); /* ICAX1Z */
}
/* replacement for cgetc() that doesn't include cursor enable/disable
stuff (otherwise copied from cc65's cgetc.s) */
char __fastcall__ fuji_cgetc(void) {
asm("jsr _call_keybdv");
asm("ldx #0");
}
/* using open() read() close() instead of fopen() fread() fclose()
is a big win: save us 438 bytes! */
char get_config(void) {
char config_valid = 0;
int f = open(DEFAULT_CONF_FILE, O_RDONLY);
puts("Loading config from " DEFAULT_CONF_FILE);
if(f >= 0) {
config_valid =
(read(f, config, sizeof(fuji_conf_t)) == sizeof(fuji_conf_t));
close(f);
if(!config_valid)
puts("Config file is wrong size");
} else {
puts("No config file found");
}
if(config_valid) {
if(!config_is_valid()) {
puts("Invalid or outdated config file");
config_valid = 0;
} else {
puts("Loaded OK");
}
}
return config_valid;
}
char config_is_valid(void) {
// return( (memcmp(config->signature, CONF_SIGNATURE, 2) == 0) && (config->version == CONF_VERSION) );
return
*((char *)CONFIG_ADDRESS) == CONF_SIGNATURE_LO &&
*(char *)(CONFIG_ADDRESS+1) == CONF_SIGNATURE_HI &&
*(char *)(CONFIG_ADDRESS+2) == CONF_VERSION;
}
void set_default_config(void) {
puts("Using built-in defaults");
/*
// FIXME: why does this end up always 0.0.0.0 now?
// has something to do with macro expansion. What a mess.
uip_ipaddr(&(config->local_ip), 192,168,0,2);
uip_ipaddr(&(config->peer_ip), 192,168,0,1);
uip_ipaddr(&(config->resolver_ip), 192,168,0,1);
*/
config->local_ip[0] = 0xa8c0;
config->local_ip[1] = 0x0200;
config->peer_ip[0] = 0xa8c0;
config->peer_ip[1] = 0x0100;
config->resolver_ip[0] = 0xa8c0;
config->resolver_ip[1] = 0x0100;
strcpy(config->server, "irc.freenode.org");
strcpy(config->nick, DEFAULT_NICK);
strcpy(config->real_name, "FujiChat User");
config->server_port = 6667;
config->ui_flags = UIFLAG_HIDEMOTD;
config->bg_color = 0xc0; /* dark green */
config->fg_color = 0x0c;
config->baud = RS_BAUD_4800;
*(char *)(CONFIG_ADDRESS) = CONF_SIGNATURE_LO;
*(char *)(CONFIG_ADDRESS+1) = CONF_SIGNATURE_HI;
*(char *)(CONFIG_ADDRESS+2) = CONF_VERSION;
// config_valid = 1;
}
void get_line(char *buf, unsigned char len) {
asm("ldy #$00");
asm("lda (sp),y");
asm("sta $e2");
asm("ldy #$02");
asm("jsr ldaxysp");
asm("sta $e0");
asm("stx $e0+1");
asm("@loop: lda _stdin");
asm("ldx _stdin+1");
asm("jsr _fgetc");
asm("cmp #$9B");
asm("beq @out");
asm("ldy #$00");
asm("sta ($e0),y");
asm("inc $e0");
asm("bne @noinc");
asm("inc $e0+1");
asm("@noinc:");
asm("dec $e2");
asm("bne @loop");
asm("@out:");
asm("ldy #$00");
asm("tya");
asm("sta ($e0),y");
/*
// C implementation is 80 bytes, asm is 50
fgets(buf, len, stdin);
while(*buf) {
if(*buf == '\n')
*buf = '\0';
++buf;
}
*/
}
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