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/* $Id: shiroi_romcard_mk_i.c 34 2024-09-01 10:13:47Z nishi $ */
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#include "shiroi_romcard_mk_i.h"
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#include "shiroi.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <signal.h>
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void shiroi_romcard_mk_i_install(shiroi_t* shiroi, int slot) {
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shiroi->cards[slot].type = SHIROI_ROMCARD_MARK_I;
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shiroi->cards[slot].romcard.data = malloc(1 << 24);
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if(shiroi->cards[slot].romcard.data == NULL) {
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fprintf(stderr, "Could not allocate!\n");
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#ifndef __MINGW32__
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raise(SIGABRT);
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#endif
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}
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shiroi->cards[slot].romcardptr = &shiroi->cards[slot].romcard;
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}
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void shiroi_romcard_mk_i_reset(shiroi_t* shiroi, int slot) {}
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void shiroi_romcard_mk_i(shiroi_t* shiroi) {
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int i;
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uint16_t io = Z80_GET_ADDR(shiroi->z80_pins);
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uint16_t addr = io & 0xff;
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uint16_t data = (io >> 8) & 0xff;
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for(i = 0; i < 256 / SHIROI_IO_PORTS; i++) {
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if(shiroi->cards[i].type == SHIROI_ROMCARD_MARK_I) {
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if(shiroi->z80_pins & Z80_RD) {
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/* I/O Read */
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if(addr == 16) {
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Z80_SET_DATA(shiroi->z80_pins, shiroi->cards[i].romcard.data[shiroi->cards[i].romcard.latch_addr]);
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} else if(addr == 17) {
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Z80_SET_DATA(shiroi->z80_pins, shiroi->cards[i].type);
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}
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} else if(shiroi->z80_pins & Z80_WR) {
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/* I/O Write */
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if(addr == 15) {
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shiroi->cards[i].romcard.latch_addr <<= 8;
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shiroi->cards[i].romcard.latch_addr |= data;
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}
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}
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}
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}
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}
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void shiroi_romcard_mk_i_tick(shiroi_t* shiroi) {}
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