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Add setvar to Amiga platform for RTC and HDD0 image configuration

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This commit is contained in:
beeanyew
2020-12-20 05:49:45 +01:00
parent 93f7465e33
commit 34f7de3b9c
7 changed files with 84 additions and 10 deletions
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24
platforms/amiga/amiga-platform.c
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@@ -1,8 +1,9 @@
#include "../platforms.h"
#include "amiga-autoconf.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../platforms.h"
#include "amiga-autoconf.h"
#include "amiga-registers.h"
int handle_register_read_amiga(unsigned int addr, unsigned char type, unsigned int *val);
int handle_register_write_amiga(unsigned int addr, unsigned int value, unsigned char type);
@@ -165,7 +166,24 @@ int setup_platform_amiga(struct emulator_config *cfg) {
}
void setvar_amiga(char *var, char *val) {
if (var || val) {}
if (!var)
return;
if (strcmp(var, "enable_rtc_emulation") == 0) {
int8_t rtc_enabled = 0;
if (!val || strlen(val) == 0)
rtc_enabled = 1;
else {
rtc_enabled = get_int(val);
}
if (rtc_enabled != -1) {
configure_rtc_emulation_amiga(rtc_enabled);
}
}
if (strcmp(var, "hdd0") == 0) {
if (val && strlen(val) != 0)
set_hard_drive_image_file_amiga(0, val);
}
}
void create_platform_amiga(struct platform_config *cfg, char *subsys) {

21
platforms/amiga/amiga-registers.c
View File

@@ -4,8 +4,23 @@
#define GAYLEBASE 0xD80000 // D7FFFF
#define GAYLESIZE 0x6FFFF
#define CLOCKBASE 0xDC0000
#define CLOCKSIZE 0x010000
uint8_t rtc_emulation_enabled = 1;
void configure_rtc_emulation_amiga(uint8_t enabled) {
if (enabled == rtc_emulation_enabled)
return;
rtc_emulation_enabled = enabled;
printf("Amiga RTC emulation is now %s.\n", (enabled) ? "enabled" : "disabled");
}
int handle_register_read_amiga(unsigned int addr, unsigned char type, unsigned int *val) {
if (addr > GAYLEBASE && addr < GAYLEBASE + GAYLESIZE) {
if (!rtc_emulation_enabled && addr >= CLOCKBASE && addr < CLOCKBASE + CLOCKSIZE)
return -1;
if (addr >= GAYLEBASE && addr < GAYLEBASE + GAYLESIZE) {
switch(type) {
case OP_TYPE_BYTE:
*val = readGayleB(addr);
@@ -28,7 +43,9 @@ int handle_register_read_amiga(unsigned int addr, unsigned char type, unsigned i
}
int handle_register_write_amiga(unsigned int addr, unsigned int value, unsigned char type) {
if (addr > GAYLEBASE && addr < GAYLEBASE + GAYLESIZE) {
if (!rtc_emulation_enabled && addr >= CLOCKBASE && addr < CLOCKBASE + CLOCKSIZE)
return -1;
if (addr >= GAYLEBASE && addr < GAYLEBASE + GAYLESIZE) {
switch(type) {
case OP_TYPE_BYTE:
writeGayleB(addr, value);

2
platforms/amiga/amiga-registers.h Normal file
View File

@@ -0,0 +1,2 @@
void configure_rtc_emulation_amiga(uint8_t enabled);
void set_hard_drive_image_file_amiga(uint8_t index, char *filename);