experimental/emcyfra
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

WIP

Browse Source
This commit is contained in:
Kris Kwiatkowski
2025-02-17 23:46:39 +00:00
parent 113fed4ae1
commit e392f01c65
4 changed files with 48 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
runner.c
View File

@@ -2,28 +2,46 @@
#include <platform/printf.h>
#include <stdint.h>
#define RAM_START 0x20000000
#define RAM_END RAM_START + 0x00400000
#define LIB_MAGIC 0xDEADBEEFu
#define RAM_START 0x00300000
#define RAM_END RAM_START + 0x00800000
#define LIB_MAGIC 0x88DAD0F2
typedef int (*func_t)(void);
typedef int (*func_t)();
void execute_library_function() {
printf("Scanning RAM...\n");
volatile uint32_t *ptr = (uint32_t *)RAM_START;
uint32_t *ptr = (uint32_t *)RAM_START;
while ((uint32_t)ptr < RAM_END) {
if (*ptr == LIB_MAGIC) {
printf("Found libpqscheme_test!\n");
uint32_t entry_point = *(ptr + 4);
printf("%X\n", entry_point);
entry_point += 4;
printf("%X\n", entry_point);
printf("Found libpqscheme_test 0x%X!\n", ptr);
printf("1>...%X 0x%X\n", ptr + 1, *(ptr + 1));
printf("2>...%X 0x%X\n", ptr + 2, *(ptr + 2));
printf("3>...%X 0x%X\n", ptr + 3, *(ptr + 3));
for (size_t i = 0; i < 20; i++) {
printf("%X %2X \n", (((uint8_t *)ptr) + i),
*(((uint8_t *)ptr) + i));
}
/*
uint32_t entry_point = *((uint32_t *)(ptr + 0x10));
uint8_t *p = (uint8_t *)entry_point;
printf("\n");
func_t test_func = (func_t)entry_point;
if (test_func) {
printf("Try exec...%X\n", entry_point);
printf("Try exec...0x%X 0x%X\n", entry_point,
0x20000034 + 0x10);
printf(">> %d\n", test_func());
}
*/
uint32_t entry_point = 0x300044 | 1;
func_t test_func = (func_t)entry_point;
printf("> Entry point\n", entry_point);
int res = test_func();
printf(">> %d\n", res);
return;
}
ptr++;