Subversion Repositories Shiroi

/* $Id: shiroi_debug.c 29 2024-08-31 17:41:43Z nishi $ */
#include "shiroi_debug.h"

#include "shiroi.h"

#include <stdlib.h>

void shiroi_debug_install(shiroi_t* shiroi, int slot) {
        shiroi->cards[slot].type = SHIROI_DEBUG;
        shiroi->cards[slot].debugptr = &shiroi->cards[slot].debug;

        int i;
        for(i = 0; i < 4; i++) shiroi->cards[slot].debug.latch[i] = 0xff;
}

void shiroi_debug_reset(shiroi_t* shiroi, int slot) {
        int i;
        for(i = 0; i < 4; i++) shiroi->cards[slot].debug.latch[i] = 0xff;
}

void shiroi_debug(shiroi_t* shiroi) {
        int i;

        uint16_t io = Z80_GET_ADDR(shiroi->z80_pins);
        uint16_t addr = io & 0xff;
        uint16_t data = (io >> 8) & 0xff;

        for(i = 0; i < 256 / SHIROI_IO_PORTS; i++) {
                if(shiroi->cards[i].type == SHIROI_DEBUG) {
                        if(shiroi->z80_pins & Z80_RD) {
                                /* I/O Read */
                                if(addr == 14) {
                                        Z80_SET_DATA(shiroi->z80_pins, shiroi->cards[i].type);
                                }
                        } else if(shiroi->z80_pins & Z80_WR) {
                                /* I/O Write */
                                if(addr == 12) {
                                        shiroi->cards[i].debug.latch_addr = data;
                                } else if(addr == 13) {
                                        shiroi->cards[i].debug.latch[shiroi->cards[i].debug.latch_addr] = data;
                                }
                        }
                }
        }
}

void shiroi_debug_tick(shiroi_t* shiroi) {}