mirror of
https://github.com/parasyte/alt64
synced 2024-11-02 08:15:07 -04:00
360 lines
6.7 KiB
C
360 lines
6.7 KiB
C
#include <stdint.h>
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#include <dma.h>
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#include <n64sys.h>
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#include "sys.h"
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#include "types.h"
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#include "everdrive.h"
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#include "errors.h"
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#include "usb.h"
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u32 asm_date;
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Options_st options;
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u32 native_tv_mode;
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#define CIC_6101 1
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#define CIC_6102 2
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#define CIC_6103 3
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#define CIC_6104 4
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#define CIC_6105 5
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#define CIC_6106 6
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u16 strcon(u8 *str1, u8 *str2, u8 *dst, u16 max_len) {
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u16 len = 0;
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max_len -= 1;
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while (*str1 != 0 && len < max_len) {
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*dst++ = *str1++;
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len++;
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}
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while (*str2 != 0 && len < max_len) {
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*dst++ = *str2++;
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len++;
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}
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*dst++ = 0;
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return len;
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}
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void dma_read_s(void * ram_address, unsigned long pi_address, unsigned long len) {
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u32 buff[256];
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u32 *bptr;
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u32 *rptr = (u32 *) ram_address;
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// if(len==32768)
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// rptr = (u32 *) 0x803F7988;
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u16 i;
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//u16 blen = 512;
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//if (len < 512)blen = len;
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//*(volatile u32*) 0x1FC007FC = 0x08;
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IO_WRITE(PI_STATUS_REG, 3);
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while (len) {
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dma_read(buff, pi_address, 512);
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while ((IO_READ(PI_STATUS_REG) & 3) != 0);
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//while ((*((volatile u32*) PI_STATUS_REG) & 0x02) != 1);
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data_cache_hit_invalidate(buff, 512);
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bptr = buff;
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for (i = 0; i < 512 && i < len; i += 4)*rptr++ = *bptr++;
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len = len < 512 ? 0 : len - 512;
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pi_address += 512;
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}
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}
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void dma_write_s(void * ram_address, unsigned long pi_address, unsigned long len) {
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//if(len==32768)
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//ram_address = (u32 *) 0x803F7988;
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data_cache_hit_writeback(ram_address, len);
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dma_write(ram_address, pi_address, len);
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}
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/*
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void showError(char *str, u32 code) {
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console_printf("%s%u\n", str, code);
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joyWait();
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}
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*/
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void sleep(u32 ms) {
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u32 current_ms = get_ticks_ms();
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while (get_ticks_ms() - current_ms < ms);
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}
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void dma_read_sram(void *dest, u32 offset, u32 size) {
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/*
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PI_DMAWait();
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IO_WRITE(PI_STATUS_REG, 0x03);
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IO_WRITE(PI_DRAM_ADDR_REG, K1_TO_PHYS(dest));
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IO_WRITE(PI_CART_ADDR_REG, (0xA8000000 + offset));
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// data_cache_invalidate_all();
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IO_WRITE(PI_WR_LEN_REG, (size - 1));
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*/
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/* 0xA8000000
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* 0xb0000000
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* 0x4000000
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* */
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dma_read_s(dest, 0xA8000000 + offset, size);
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//data_cache_invalidate(dest,size);
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}
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void dma_write_sram(void* src, u32 offset, u32 size) {
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/*
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PI_DMAWait();
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IO_WRITE(PI_STATUS_REG, 0x02);
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IO_WRITE(PI_DRAM_ADDR_REG, K1_TO_PHYS(src));
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IO_WRITE(PI_CART_ADDR_REG, (0xA8000000 + offset));
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// data_cache_invalidate_all();
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IO_WRITE(PI_RD_LEN_REG, (size - 1));
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*/
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dma_write_s(src, 0xA8000000 + offset, size);
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}
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#define DO1(buf) crc = crc_table[((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8);
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#define DO2(buf) DO1(buf); DO1(buf);
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#define DO4(buf) DO2(buf); DO2(buf);
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#define DO8(buf) DO4(buf); DO4(buf);
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unsigned int CRC_Calculate(unsigned int crc, unsigned char* buf, unsigned int len) {
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static unsigned int crc_table[256];
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static int make_crc_table = 1;
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if (make_crc_table) {
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unsigned int c, n;
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int k;
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unsigned int poly;
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const unsigned char p[] = {0, 1, 2, 4, 5, 7, 8, 10, 11, 12, 16, 22, 23, 26};
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/* make exclusive-or pattern from polynomial (0xedb88320L) */
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poly = 0L;
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for (n = 0; n < sizeof (p) / sizeof (unsigned char); n++)
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poly |= 1L << (31 - p[n]);
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for (n = 0; n < 256; n++) {
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c = n;
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for (k = 0; k < 8; k++)
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c = c & 1 ? poly ^ (c >> 1) : c >> 1;
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crc_table[n] = c;
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}
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make_crc_table = 0;
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}
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if (buf == (void*) 0) return 0L;
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crc = crc ^ 0xffffffffL;
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while (len >= 8) {
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DO8(buf);
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len -= 8;
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}
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if (len)
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do {
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DO1(buf);
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} while (--len);
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return crc ^ 0xffffffffL;
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}
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u32 ii;
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volatile u32 *pt;
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void clean();
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#define MEM32(addr) *((volatile u32 *)addr)
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u8 str_buff[128];
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u8 STR_intToDecString(u32 val, u8 *str) {
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int len;
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if (val < 10)len = 1;
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else
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if (val < 100)len = 2;
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else
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if (val < 1000)len = 3;
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else
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if (val < 10000)len = 4;
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else
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if (val < 100000)len = 5;
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else
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if (val < 1000000)len = 6;
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else
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if (val < 10000000)len = 7;
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else
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if (val < 100000000)len = 8;
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else
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if (val < 1000000000)len = 9;
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else len = 10;
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str += len;
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str[0] = 0;
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if (val == 0)*--str = '0';
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while (val) {
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*--str = '0' + val % 10;
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val /= 10;
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}
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return len;
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}
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void STR_intToDecStringMin(u32 val, u8 *str, u8 min_size) {
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int len;
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u8 i;
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if (val < 10)len = 1;
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else
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if (val < 100)len = 2;
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else
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if (val < 1000)len = 3;
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else
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if (val < 10000)len = 4;
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else
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if (val < 100000)len = 5;
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else
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if (val < 1000000)len = 6;
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else
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if (val < 10000000)len = 7;
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else
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if (val < 100000000)len = 8;
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else
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if (val < 1000000000)len = 9;
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else len = 10;
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if (len < min_size) {
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i = min_size - len;
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while (i--)str[i] = '0';
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len = min_size;
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}
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str += len;
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str[0] = 0;
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if (val == 0)*--str = '0';
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while (val) {
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*--str = '0' + val % 10;
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val /= 10;
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}
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}
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u8 streq(u8 *str1, u8 *str2) {
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u8 s1;
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u8 s2;
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for (;;) {
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s1 = *str1++;
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s2 = *str2++;
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if (s1 >= 'a' && s1 <= 'z')s1 -= 0x20;
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if (s2 >= 'a' && s2 <= 'z')s2 -= 0x20;
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if (s1 != s2) return 0;
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if (*str1 == 0 && *str2 == 0)return 1;
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}
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}
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u8 streql(u8 *str1, u8 *str2, u8 len) {
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u8 s1;
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u8 s2;
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while (len--) {
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s1 = *str1++;
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s2 = *str2++;
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if (s1 >= 'a' && s1 <= 'z')s1 -= 0x20;
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if (s2 >= 'a' && s2 <= 'z')s2 -= 0x20;
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if (s1 != s2) return 0;
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}
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return 1;
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}
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u16 strContain(u8 *target, u8 *str) {
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u16 targ_len = slen(target);
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u16 eq_len;
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for (eq_len = 0; eq_len < targ_len;) {
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if (*str == 0)return 0;
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if (*str++ == target[eq_len]) {
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eq_len++;
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} else {
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eq_len = 0;
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}
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}
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if (eq_len != targ_len)return 0;
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return 1;
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}
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u8 slen(u8 *str) {
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u8 len = 0;
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while (*str++)len++;
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return len;
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}
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u8 scopy(u8 *src, u8 *dst) {
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u8 len = 0;
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while (*src != 0) {
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*dst++ = *src++;
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len++;
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}
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*dst = 0;
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return len;
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}
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void strhicase(u8 *str, u8 len) {
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if (len) {
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while (len--) {
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if (*str >= 'a' && *str <= 'z')*str -= 0x20;
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str++;
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}
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} else {
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while (*str != 0) {
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if (*str >= 'a' && *str <= 'z')*str -= 0x20;
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str++;
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}
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}
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}
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