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| author | Xavi Del Campo <xavi.dcr@tutanota.com> | 2020-03-03 18:10:15 +0100 |
|---|---|---|
| committer | Xavi Del Campo <xavi.dcr@tutanota.com> | 2020-03-03 18:10:27 +0100 |
| commit | b28059d49afce8524361fa7597adcc9e108f4eab (patch) | |
| tree | 5041d37aa9571ac738ced4b9f16388550d0e8f78 /src/main.c | |
| parent | bf3bb8cdc590a18195e25c38f4f4db11e8bcd1c4 (diff) | |
| download | opensend-b28059d49afce8524361fa7597adcc9e108f4eab.tar.gz | |
Renamed folders to lowercase
Diffstat (limited to 'src/main.c')
| -rw-r--r-- | src/main.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/main.c b/src/main.c new file mode 100644 index 0000000..6fed452 --- /dev/null +++ b/src/main.c @@ -0,0 +1,161 @@ +/* ************************************* + * Includes + * *************************************/ + +#include "Global_Inc.h" +#include "System.h" +#include "Serial.h" +#include "LoadMenu.h" +#include "EndAnimation.h" + +/* ************************************* + * Defines + * *************************************/ + +#define PSX_EXE_HEADER_SIZE 2048 +#define EXE_DATA_PACKET_SIZE 8 + +/* ************************************* + * Local Prototypes + * *************************************/ + +/* ************************************* + * Local Variables + * *************************************/ + + /* Untitled1 (10/07/2017 18:57:47) + StartOffset: 00000000, EndOffset: 0000002F, Length: 00000030 */ + +/* Untitled2 (10/07/2017 21:10:19) + StartOffset: 00000000, EndOffset: 000357FF, Length: 00035800 */ + +extern void _start(void); + + + +int main(void) +{ + uint8_t* inBuffer = SystemGetBufferAddress(); + // int (*exeAddress)(void); + + //System initialization + dprintf("SystemInit()\n"); + SystemInit(); + + dprintf("LoadMenuInit()\n"); + + LoadMenuInit(); + + { + uint32_t initPC_Address; + uint32_t RAMDest_Address; + uint32_t ExeSize = 0; + uint32_t i; + void (*exeAddress)(void); + + GfxSetGlobalLuminance(0); + + SerialInit(); + + // Read PSX-EXE header (32 bytes will be enough). + + SerialSetState(SERIAL_STATE_READING_HEADER); + + SerialRead(inBuffer, 32); + + // Get initial program counter address from PSX-EXE header. + + initPC_Address = (inBuffer[0x10] | (inBuffer[0x11] << 8) | (inBuffer[0x12] << 16) | (inBuffer[0x13] << 24) ); + + SerialSetPCAddress(initPC_Address); + + //dprintf("initPC_Address = 0x%08X\n", initPC_Address); + + // Get destination address in RAM from PSX-EXE header. + + RAMDest_Address = (inBuffer[0x18] | (inBuffer[0x19] << 8) | (inBuffer[0x1A] << 16) | (inBuffer[0x1B] << 24) ); + + SerialSetRAMDestAddress(RAMDest_Address); + + //dprintf("RAMDest_Address = 0x%08X\n", RAMDest_Address); + + // We have received all data correctly. Send ACK. + + memset(inBuffer, 0, SystemGetBufferSize()); + + SerialSetState(SERIAL_STATE_WRITING_ACK); + + SerialWrite(ACK_BYTE_STRING, sizeof(uint8_t)); // Write ACK + + // Get PSX-EXE size, without header, in hexadecimal, little-endian format; + + SerialSetState(SERIAL_STATE_READING_EXE_SIZE); + + SerialRead(inBuffer, sizeof(uint32_t) ); + + for(i = 0; i < sizeof(uint32_t); i++) + { + ExeSize |= inBuffer[i] << (i << 3); // (i << 3) == (i * 8) + } + + SerialSetExeSize(ExeSize); + + //DEBUG_PRINT_VAR(ExeSize); + + SerialSetState(SERIAL_STATE_CLEANING_MEMORY); + + exeAddress = (void*)initPC_Address; + + // Clean memory where EXE data will be loaded, just in case... + + memset((void*)RAMDest_Address, 0, (uint32_t)((uint32_t)(&_start) - (uint32_t)(RAMDest_Address) ) ); + + SerialSetState(SERIAL_STATE_WRITING_ACK); + + // We have received PSX-EXE size (without header) correctly. Send ACK. + + SerialWrite(ACK_BYTE_STRING, sizeof(uint8_t)); // Write ACK + + SerialSetState(SERIAL_STATE_READING_EXE_DATA); + + while(GfxIsGPUBusy() == true); + + for(i = 0; i < ExeSize; i += EXE_DATA_PACKET_SIZE) + { + uint32_t bytes_to_read; + + // Read actual EXE data into proper RAM address. + + if( (i + EXE_DATA_PACKET_SIZE) >= ExeSize) + { + bytes_to_read = ExeSize - i; + } + else + { + bytes_to_read = EXE_DATA_PACKET_SIZE; + } + + SerialRead((uint8_t*)RAMDest_Address + i, bytes_to_read); + + SerialSetExeBytesReceived(bytes_to_read); + + SerialWrite(ACK_BYTE_STRING, sizeof(uint8_t)); // Write ACK + } + + SetVBlankHandler(&ISR_SystemDefaultVBlank); + + // Make a pretty animation before exeting OpenSend application. + + EndAnimation(); + + PSX_DeInit(); + + // PSX-EXE has been successfully loaded into RAM. Run executable! + + //dprintf("Entering exe...\n"); + + exeAddress(); + } + + return 0; +} |
