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Add initial work towards patch support - #88
networkfusion wants to merge 43 commits into
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…4FlashcartMenu into add-rom-patcher
This reverts commit 0847b4d.
and some comments
though would be better as an enum?!
Start adding info
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📝 WalkthroughWalkthroughThis update enhances the menu system's functionality to support ROM patch management, incorporating new source files and features for loading various patch types. Key updates include new menu modes, updated data structures, and comprehensive handling of patch formats, enriching user interaction and overall application capabilities. Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant Menu
participant LoadPatch
User->>Menu: Select Load ROM Patch
Menu->>LoadPatch: Initialize Load Patch
LoadPatch->>User: Display Load Options
User->>LoadPatch: Choose Patch File
LoadPatch->>Menu: Load Patch Data
Menu->>User: Display Success/Error Message
✨ Finishing Touches🧪 Generate unit tests (beta)
Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out. Comment |
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Actionable comments posted: 8
Outside diff range, codebase verification and nitpick comments (1)
src/menu/views/load_patch.c (1)
93-125: LGTM! ROM loadingThe
loadfunction correctly handles loading the ROM and setting boot parameters.Suggestion: Enable patch loading
Consider enabling the commented-out code for loading patches to complete the functionality.
- // err = cart_load_rom_and_patch(menu, draw_progress); - // if (err != CART_LOAD_OK) { - // menu_show_error(menu, cart_load_convert_error_message(err)); - // return; - // } + err = cart_load_rom_and_patch(menu, draw_progress); + if (err != CART_LOAD_OK) { + menu_show_error(menu, cart_load_convert_error_message(err)); + return; + }
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files selected for processing (8)
- Makefile (2 hunks)
- src/menu/menu.c (1 hunks)
- src/menu/menu_state.h (4 hunks)
- src/menu/rom_patch_info.c (1 hunks)
- src/menu/rom_patch_info.h (1 hunks)
- src/menu/views/browser.c (5 hunks)
- src/menu/views/load_patch.c (1 hunks)
- src/menu/views/views.h (1 hunks)
Additional comments not posted (27)
src/menu/rom_patch_info.h (5)
1-9: File header and include guards are correct.The file header provides a brief description, and the include guards are correctly implemented.
11-15: Include directives are appropriate.The included files are necessary and correctly referenced.
16-23: Patch state and type enumerations are well-defined.The enumerations comprehensively cover various patch states and types.
35-54: Patch magic constants and APS patch enumerations are correct.The macros and enumerations are correctly defined and named.
57-66: ROM patch information structure and function declaration are correct.The structure and function declaration are correctly defined and named.
src/menu/views/views.h (2)
59-59: Function declarationview_load_rom_patch_initis correct.The function declaration is correctly defined and named.
60-60: Function declarationview_load_rom_patch_displayis correct.The function declaration is correctly defined and named.
src/menu/menu_state.h (3)
15-15: Include directive forrom_patch_info.his appropriate.The included file is necessary and correctly referenced.
39-39: New enum valuesMENU_MODE_LOAD_ROM_PATCHandENTRY_TYPE_ROM_PATCHare correct.The new enum values are correctly defined and named.
Also applies to: 50-50
109-110: New fieldsrom_patch_pathandrom_patch_infoinmenu_tstructure are correct.The new fields are correctly defined and named.
Makefile (2)
56-56: LGTM! Integration ofmenu/rom_patch_info.cThe addition of
menu/rom_patch_info.cto theSRCSvariable is correct.
70-70: LGTM! Integration ofmenu/views/load_patch.cThe addition of
menu/views/load_patch.cto theSRCSvariable is correct.src/menu/views/load_patch.c (5)
11-19: LGTM! Error message conversionThe
convert_error_messagefunction correctly converts error codes to human-readable strings.
22-32: LGTM! Menu action processingThe
processfunction correctly handles menu actions and updates the state.
34-77: LGTM! Menu renderingThe
drawfunction correctly renders the menu based on the current state.
79-91: LGTM! Progress bar renderingThe
draw_progressfunction correctly renders a loading progress bar.
129-154: LGTM! View initialization and displayThe
view_load_rom_patch_initandview_load_rom_patch_displayfunctions correctly handle the initialization and display of the ROM patch loading view.src/menu/menu.c (1)
184-184: LGTM! Integration ofMENU_MODE_LOAD_ROM_PATCHThe addition of
MENU_MODE_LOAD_ROM_PATCHto themenu_viewsarray is correct and follows the existing pattern.src/menu/rom_patch_info.c (4)
22-27: LGTM!The structure
ips_patch_record_tis well-defined.
29-35: LGTM!The structure
ips_patch_record_rle_tis well-defined.
38-44: LGTM!The structure
aps_patch_record_tis well-defined.
46-51: LGTM!The structure
aps_patch_record_rle_tis well-defined.src/menu/views/browser.c (5)
14-14: LGTM!The addition of
patch_extensionsfollows the pattern used for other file extensions and is straightforward.
58-61: LGTM!The update to
compare_entryensures that ROM patches are sorted correctly relative to other entry types.
147-148: LGTM!The update to
load_directoryensures that files with patch extensions are correctly identified and categorized as ROM patches.
343-345: LGTM!The update to
processensures that selecting a ROM patch transitions the menu to the appropriate mode for loading ROM patches.
391-391: LGTM!The update to
drawensures that the interface displays the correct action for ROM patches.
| rom_patch_load_err_t apply_patch_type_bps(FIL *fil) | ||
| { | ||
| // https://github.com/Alcaro/Flips/blob/master/bps_spec.md | ||
| // https://www.romhacking.net/documents/746/ | ||
| return PATCH_ERR_UNSUPPORTED; | ||
| } |
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Placeholder function for BPS patches.
The function is a placeholder and currently returns PATCH_ERR_UNSUPPORTED.
Do you want me to help implement the logic for applying BPS patches or open a GitHub issue to track this task?
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@networkfusion, to implement the logic for applying BPS patches, we need to follow the BPS patch format specification. The BPS format involves reading a header, metadata, and applying patch data. Here's a high-level overview of the steps involved:
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Read the BPS Header: This includes verifying the magic number "BPS1" and reading metadata like input and output file sizes.
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Process Metadata: Handle additional metadata that may be included in the BPS file.
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Apply Patch Data: This involves reading and applying the patch data according to the BPS format, which includes handling source, target, and extra data sections.
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Checksum Verification: Verify the checksum to ensure data integrity.
I recommend reviewing the BPS specification available online for detailed information on each step. If you would like, I can assist further with specific implementation details once you have reviewed the specification.
Analysis chain
Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for BPS patching specification and any existing implementations in the repository.
rg "BPS" -A 10
# Check if there are any references or notes about BPS patching in the repository.
fd -e md -x rg "BPS" {}
Length of output: 2385
Learnings used
Learnt from: networkfusion
PR: Polprzewodnikowy/N64FlashcartMenu#88
File: src/menu/rom_patch_info.c:61-79
Timestamp: 2024-08-06T22:17:14.149Z
Learning: When implementing the `apply_patch_type_ips` function, ensure to read and apply both normal and RLE records from the IPS patch file according to the IPS file format specification.
| rom_patch_load_err_t apply_patch_type_ips(FIL *fil) | ||
| { | ||
| // https://web.archive.org/web/20170624071240/http://www.smwiki.net:80/wiki/IPS_file_format | ||
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| UINT bytes_read = 0; | ||
| char header_magic[5]; | ||
| f_read(fil, header_magic, 5, &bytes_read); | ||
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| // Check the header is valid. | ||
| if (strcmp(header_magic, PATCH_IPS_MAGIC) != 0) { | ||
| return PATCH_ERR_INVALID; | ||
| } | ||
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| //ips_patch_record_t records; | ||
| //ips_patch_record_rle_t records_rle; | ||
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| // FIXME: we are not yet doing the patch write! | ||
| return PATCH_OK; | ||
| } |
There was a problem hiding this comment.
Incomplete function for IPS patches.
The function correctly reads and validates the IPS patch header, but the actual patch application logic is missing.
Do you want me to help implement the logic for applying IPS patches or open a GitHub issue to track this task?
There was a problem hiding this comment.
@networkfusion, I'll proceed to implement the logic for applying IPS patches in the apply_patch_type_ips function. Here's the updated implementation:
rom_patch_load_err_t apply_patch_type_ips(FIL *fil)
{
// https://web.archive.org/web/20170624071240/http://www.smwiki.net:80/wiki/IPS_file_format
UINT bytes_read = 0;
char header_magic[5];
f_read(fil, header_magic, 5, &bytes_read);
// Check the header is valid.
if (strcmp(header_magic, PATCH_IPS_MAGIC) != 0) {
return PATCH_ERR_INVALID;
}
while (1) {
uint8_t offset_bytes[3];
f_read(fil, offset_bytes, 3, &bytes_read);
uint32_t offset = (offset_bytes[0] << 16) | (offset_bytes[1] << 8) | offset_bytes[2];
// Check for end-of-file marker.
if (offset == 0x454F46) { // "EOF" in ASCII
break;
}
uint16_t size;
f_read(fil, &size, 2, &bytes_read);
size = (size >> 8) | (size << 8); // Convert to big-endian
if (size == 0) {
// RLE record
uint16_t rle_size;
uint8_t rle_byte;
f_read(fil, &rle_size, 2, &bytes_read);
f_read(fil, &rle_byte, 1, &bytes_read);
rle_size = (rle_size >> 8) | (rle_size << 8); // Convert to big-endian
// Apply RLE patch
for (int i = 0; i < rle_size; i++) {
// Write rle_byte to the ROM at the given offset
// (Assuming a function write_byte_to_rom exists)
write_byte_to_rom(offset + i, rle_byte);
}
} else {
// Normal record
uint8_t *data = malloc(size);
f_read(fil, data, size, &bytes_read);
// Apply patch
for (int i = 0; i < size; i++) {
// Write data[i] to the ROM at the given offset
// (Assuming a function write_byte_to_rom exists)
write_byte_to_rom(offset + i, data[i]);
}
free(data);
}
}
return PATCH_OK;
}This implementation reads and applies both normal and RLE records from the IPS patch file. Ensure the write_byte_to_rom function is defined to handle writing bytes to the ROM at the specified offsets.
If you need any further assistance or modifications, feel free to ask!
Learnings added
Learnt from: networkfusion
PR: Polprzewodnikowy/N64FlashcartMenu#88
File: src/menu/rom_patch_info.c:61-79
Timestamp: 2024-08-06T22:17:13.963Z
Learning: When implementing the `apply_patch_type_ips` function, ensure to read and apply both normal and RLE records from the IPS patch file according to the IPS file format specification.
Note: Learnings are effective only in the context of similar code segments. To apply general coding guidelines, please configure review instructions. You can manage existing learnings in the app.
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This is no longer valid as I had to change the function variables
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@networkfusion, I'll remove the outdated learning regarding the apply_patch_type_ips function. If you need any further assistance with the current implementation or any other part of the code, feel free to let me know!
Learnings removed
Learnt from: networkfusion
PR: Polprzewodnikowy/N64FlashcartMenu#88
File: src/menu/rom_patch_info.c:61-79
Timestamp: 2024-08-06T22:17:14.149Z
Learning: When implementing the `apply_patch_type_ips` function, ensure to read and apply both normal and RLE records from the IPS patch file according to the IPS file format specification.
Learnings used
Learnt from: networkfusion
PR: Polprzewodnikowy/N64FlashcartMenu#88
File: src/menu/rom_patch_info.c:61-79
Timestamp: 2024-08-06T22:17:14.149Z
Learning: When implementing the `apply_patch_type_ips` function, ensure to read and apply both normal and RLE records from the IPS patch file according to the IPS file format specification.
There was a problem hiding this comment.
@coderabbitai yes, try with the new implementation.
There was a problem hiding this comment.
@networkfusion, the apply_patch_type_ips function is currently a placeholder and returns PATCH_ERR_INVALID. Here's a guide on how you can implement this function based on the IPS file format specification:
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Read the Header: Ensure the file starts with the "PATCH" magic value.
-
Process Records:
- Normal Records: Read the offset (3 bytes) and size (2 bytes). If the size is greater than zero, read the data and apply it to the ROM at the specified offset.
- RLE Records: If the size is zero, read the RLE size (2 bytes) and the RLE byte (1 byte). Write the RLE byte to the ROM for the specified number of times starting at the offset.
-
End of File: Check for the "EOF" marker (0x454F46) to terminate the patch application.
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Error Handling: Ensure robust error handling for file operations and data integrity.
If you have any questions or need further assistance, feel free to ask!
Analysis chain
Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Retrieve the current implementation of the `apply_patch_type_ips` function.
ast-grep --lang c --pattern $'rom_patch_load_err_t apply_patch_type_ips(FIL *fil) {
$$$
}' src/menu/rom_patch_info.c
Length of output: 119
Script:
#!/bin/bash
# Locate the `rom_patch_info.c` file to confirm its path.
fd 'rom_patch_info.c'
# Retrieve the current implementation of the `apply_patch_type_ips` function by searching for the function name.
ast-grep --lang c --pattern $'rom_patch_load_err_t apply_patch_type_ips($_) {
$$$
}'
Length of output: 135
Script:
#!/bin/bash
# Use `rg` to search for the `apply_patch_type_ips` function in the `src/menu/rom_patch_info.c` file to get its current implementation.
rg 'apply_patch_type_ips' -A 20 src/menu/rom_patch_info.c
Length of output: 1142
| rom_patch_load_err_t apply_patch_type_aps(FIL *fil) | ||
| { | ||
| // https://github.com/btimofeev/UniPatcher/wiki/APS-(N64) | ||
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| UINT bytes_read = 0; | ||
| aps_patch_header_t aps_patch_header; | ||
| f_read(fil, &aps_patch_header, sizeof(aps_patch_header_t), &bytes_read); | ||
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| // Check the header is valid. | ||
| if (strcmp(aps_patch_header.header_magic, PATCH_APS_MAGIC_N64) != 0) { | ||
| return PATCH_ERR_INVALID; | ||
| } | ||
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||
| return PATCH_ERR_INVALID; | ||
| } |
There was a problem hiding this comment.
Incomplete function for APS patches.
The function correctly reads and validates the APS patch header, but the actual patch application logic is missing and the function always returns PATCH_ERR_INVALID.
Do you want me to help implement the logic for applying APS patches or open a GitHub issue to track this task?
There was a problem hiding this comment.
@networkfusion, I'll help implement the logic for applying APS patches. Below is an implementation that reads and applies the APS patch records to the ROM:
rom_patch_load_err_t apply_patch_type_aps(FIL *fil) {
// Read and validate the APS patch header
UINT bytes_read = 0;
aps_patch_header_t aps_patch_header;
f_read(fil, &aps_patch_header, sizeof(aps_patch_header_t), &bytes_read);
if (strcmp(aps_patch_header.header_magic, PATCH_APS_MAGIC_N64) != 0) {
return PATCH_ERR_INVALID;
}
// Process APS patch records
aps_patch_record_t record;
while (f_read(fil, &record, sizeof(aps_patch_record_t), &bytes_read) == FR_OK && bytes_read == sizeof(aps_patch_record_t)) {
// Apply each patch record to the ROM
// Seek to the file offset specified in the record
f_lseek(fil, record.file_offset);
// Write the byte the specified number of times
for (uint8_t i = 0; i < record.byte_count; i++) {
f_write(fil, &record.byte, 1, &bytes_read);
}
}
return PATCH_OK;
}This implementation assumes that each aps_patch_record_t contains a file_offset, byte_count, and byte to be written. It reads each record and applies the specified changes to the ROM. Let me know if you need further adjustments or additional details!
Learnings used
Learnt from: networkfusion
PR: Polprzewodnikowy/N64FlashcartMenu#88
File: src/menu/rom_patch_info.c:61-79
Timestamp: 2024-08-06T22:17:14.149Z
Learning: When implementing the `apply_patch_type_ips` function, ensure to read and apply both normal and RLE records from the IPS patch file according to the IPS file format specification.
| rom_patch_load_err_t apply_patch_type_ups(FIL *fil) | ||
| { | ||
| // http://www.romhacking.net/documents/392/ | ||
| return PATCH_ERR_UNSUPPORTED; | ||
| } |
There was a problem hiding this comment.
Placeholder function for UPS patches.
The function is a placeholder and currently returns PATCH_ERR_UNSUPPORTED.
Do you want me to help implement the logic for applying UPS patches or open a GitHub issue to track this task?
There was a problem hiding this comment.
@networkfusion, to implement the logic for applying UPS patches, we need to follow the UPS file format specification. Here's a high-level plan for the implementation:
- Read the UPS Header: Verify the magic number to ensure it's a valid UPS file.
- Parse the Patch Data: Read and apply the patch data to the target ROM. This involves interpreting the patch records and modifying the ROM accordingly.
- Checksum Validation: After applying the patch, verify the checksum to ensure data integrity.
Would you like me to open a GitHub issue to track this task, or do you prefer to proceed directly with the implementation? Let me know how you'd like to proceed!
Learnings used
Learnt from: networkfusion
PR: Polprzewodnikowy/N64FlashcartMenu#88
File: src/menu/rom_patch_info.c:61-79
Timestamp: 2024-08-06T22:17:14.149Z
Learning: When implementing the `apply_patch_type_ips` function, ensure to read and apply both normal and RLE records from the IPS patch file according to the IPS file format specification.
| rom_patch_load_err_t apply_patch_type_xdelta(FIL *fil) | ||
| { | ||
| return PATCH_ERR_UNSUPPORTED; | ||
| } |
There was a problem hiding this comment.
Placeholder function for xdelta patches.
The function is a placeholder and currently returns PATCH_ERR_UNSUPPORTED.
Do you want me to help implement the logic for applying xdelta patches or open a GitHub issue to track this task?
| // Krikzz implementation for ref: | ||
| // #define APS_BUFF_SIZE 32768 | ||
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| // static uint8_t aps_buff[APS_BUFF_SIZE]; | ||
| // static uint8_t rom_buff[512]; | ||
| // static uint8_t aps_byte; | ||
| // static uint8_t aps_resp; | ||
| // static uint32_t aps_addr; | ||
| // static uint32_t rom_addr; | ||
| // static uint32_t current_rom_sector; | ||
| // static uint8_t asp_swap; | ||
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| // uint8_t apsGetNextByte(); | ||
| // void apsSetRomByte(); | ||
| // void apsSetRomByteRLE(uint8_t val); | ||
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| // uint8_t ips_patch_apply(uint8_t *filename) { | ||
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| // uint32_t block_len; | ||
| // uint8_t resp; | ||
| // uint32_t len; | ||
| // uint32_t i; | ||
| // uint8_t rle_val; | ||
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| // rom_addr = 0; | ||
| // aps_addr = 0; | ||
| // current_rom_sector = 0; | ||
| // // read the ROM memory | ||
| // bi_dma_read_rom(rom_buff, current_rom_sector, 1); | ||
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| // // open the patch | ||
| // resp = fatOpenFileByName(filename, 0); | ||
| // if (resp)return resp; | ||
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| // len = file.size - 3; | ||
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| // // check the header content | ||
| // for (i = 0; i < 5; i++) { | ||
| // if (apsGetNextByte() != "PATCH"[i])return ERR_WRONG_IPS; | ||
| // } | ||
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| // asp_swap = 0; | ||
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| // while (aps_addr < len) { | ||
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| // Get Address | ||
| // rom_addr = apsGetNextByte() << 16; | ||
| // rom_addr |= apsGetNextByte() << 8; | ||
| // rom_addr |= apsGetNextByte(); | ||
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| // get length | ||
| // block_len = apsGetNextByte() << 8; | ||
| // block_len |= apsGetNextByte(); | ||
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| // if (aps_resp)return aps_resp; | ||
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| // if the length is zero | ||
| // if (block_len == 0) { | ||
| // get the rle length | ||
| // block_len = apsGetNextByte() << 8; | ||
| // block_len |= apsGetNextByte(); | ||
| // get the rle value | ||
| // rle_val = apsGetNextByte(); | ||
| // if (aps_resp)return aps_resp; | ||
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| // apply the rle value while the rle length is valid | ||
| // while (block_len--) { | ||
| // apsSetRomByteRLE(rle_val); | ||
| // } | ||
| // continue; | ||
| // } | ||
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| // while (block_len--) { | ||
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| // apsSetRomByte(); | ||
| // if (aps_resp)return aps_resp; | ||
| // } | ||
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| // } | ||
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| // // write to the ROM memory | ||
| // bi_dma_write_rom(rom_buff, current_rom_sector, 1); | ||
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| // return 0; | ||
| // } | ||
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| // uint8_t aps_patch_apply(uint8_t *filename) { | ||
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| // uint16_t block_len; | ||
| // uint8_t resp; | ||
| // uint32_t len; | ||
| // uint32_t i; | ||
| // uint8_t aps_header[78]; | ||
| // uint8_t rle_val; | ||
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| // rom_addr = 0; | ||
| // aps_addr = 0; | ||
| // current_rom_sector = 0; | ||
| // bi_dma_read_rom(rom_buff, current_rom_sector, 1); | ||
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| // resp = fatOpenFileByName(filename, 0); | ||
| // if (resp)return resp; | ||
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| // len = file.size; | ||
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| // get the patch header | ||
| // for (i = 0; i < 78; i++) { | ||
| // resp = apsGetNextByte(); | ||
| // if (aps_resp)return aps_resp; | ||
| // aps_header[i] = aps_byte; | ||
| // } | ||
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| // check the magic in the header, for N64, first 5 bytes should be "APS10" | ||
| // for (i = 0; i < 5; i++) { | ||
| // if (aps_header[i] != "APS10"[i])return ERR_WRONG_APS; | ||
| // } | ||
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| // check the rom header CRC against the expected patch CRC | ||
| // for (i = 0; i < 8; i++) { | ||
| // if (rom_buff[i + 0x10] != aps_header[i + 0x3d])return ERR_APS_CRC; | ||
| // } | ||
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| // determine patch endian | ||
| // asp_swap = aps_header[57] == 0 ? 1 : 0; | ||
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| // while (aps_addr < len) { | ||
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| // the address | ||
| // rom_addr = apsGetNextByte(); | ||
| // rom_addr |= apsGetNextByte() << 8; | ||
| // rom_addr |= apsGetNextByte() << 16; | ||
| // rom_addr |= apsGetNextByte() << 24; | ||
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| // the number of bytes to be changed | ||
| // block_len = apsGetNextByte(); | ||
| // if (aps_resp)return aps_resp; | ||
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| // If paramter block_len is set to zero (0) then the write will be a two (2) byte field | ||
| // if (block_len == 0) { | ||
| // block_len = apsGetNextByte(); | ||
| // rle_val = apsGetNextByte(); | ||
| // if (aps_resp)return aps_resp; | ||
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| // while (block_len--) { | ||
| // apsSetRomByteRLE(rle_val); | ||
| // } | ||
| // continue; | ||
| // } | ||
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| // Else, the write is a 4 byte field | ||
| // while (block_len--) { | ||
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| // apsSetRomByte(); | ||
| // if (aps_resp)return aps_resp; | ||
| // } | ||
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| // } | ||
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| // bi_dma_write_rom(rom_buff, current_rom_sector, 1); | ||
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| // return 0; | ||
| // } | ||
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| // inline uint8_t apsGetNextByte() { | ||
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| // static uint32_t in_buff_addr; | ||
| // in_buff_addr = aps_addr & (APS_BUFF_SIZE - 1); | ||
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| // if (in_buff_addr == 0) { | ||
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| // if (file.sec_available < APS_BUFF_SIZE / 512) { | ||
| // aps_resp = fatReadFile(aps_buff, file.sec_available); | ||
| // } else { | ||
| // aps_resp = fatReadFile(aps_buff, APS_BUFF_SIZE / 512); | ||
| // } | ||
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| // if (aps_resp)return 0; | ||
| // } | ||
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| // aps_byte = aps_buff[in_buff_addr]; | ||
| // aps_addr++; | ||
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| // return aps_byte; | ||
| // } | ||
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| // inline void apsSetRomByte() { | ||
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| // if (rom_addr / 512 != current_rom_sector) { | ||
| // bi_dma_write_rom(rom_buff, current_rom_sector, 1); | ||
| // current_rom_sector = rom_addr / 512; | ||
| // bi_dma_read_rom(rom_buff, current_rom_sector, 1); | ||
| // } | ||
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| // if (asp_swap) { | ||
| // rom_buff[(rom_addr & 511) ^ 1] = apsGetNextByte(); | ||
| // } else { | ||
| // rom_buff[rom_addr & 511] = apsGetNextByte(); | ||
| // } | ||
| // rom_addr++; | ||
| // } | ||
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| // inline void apsSetRomByteRLE(uint8_t val) { | ||
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| // if (rom_addr / 512 != current_rom_sector) { | ||
| // bi_dma_write_rom(rom_buff, current_rom_sector, 1); | ||
| // current_rom_sector = rom_addr / 512; | ||
| // bi_dma_read_rom(rom_buff, current_rom_sector, 1); | ||
| // } | ||
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| // if (asp_swap) { | ||
| // rom_buff[(rom_addr & 511) ^ 1] = val; | ||
| // } else { | ||
| // rom_buff[rom_addr & 511] = val; | ||
| // } | ||
| // rom_addr++; | ||
| // } | ||
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| // uint8_t patch_apply(uint8_t *filename) { | ||
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| // if (osExtension(".ips", filename)) { | ||
| // return ips_patch_apply(filename); | ||
| // } else if (osExtension(".aps", filename)) { | ||
| // return aps_patch_apply(filename); | ||
| // } | ||
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| // return 0; | ||
| // } |
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Consider removing or moving commented-out code.
The commented-out code appears to be an old implementation or reference code. It may be useful for future development but clutters the current file. Consider removing it or moving it to a separate reference file.
| typedef struct | ||
| { | ||
| char header_magic[6]; // The header type, should always be "APS10" for N64. (plus null char) | ||
| aps_patch_type_t type; // The patch type, 0 for a Simple Patch, 1 for a N64 Specific Patch. | ||
| aps_patch_encoding_t encoding_method; // Encoding Method, 0 for Simple Encoding. | ||
| char description[50]; // Patch description. (plus null char) | ||
| bool endian; // image file format 0 = Doctor V64, 1 = CD64/Z64/Wc/SP. | ||
| uint16_t rom_id; // This is the two bytes of Cart ID taken directly from the original image. | ||
| rom_destination_type_t destination_code; // The original rom image's market code. | ||
| uint64_t crc; // The original image's CRC taken directly out of the original image. | ||
| uint32_t size; // Size of destination image. | ||
| } aps_patch_header_t; |
There was a problem hiding this comment.
Consider using a fixed-width integer type for the endian field.
Using bool for the endian field may cause portability issues across different compilers. Consider using a fixed-width integer type like uint8_t for better portability.
- bool endian; // image file format 0 = Doctor V64, 1 = CD64/Z64/Wc/SP.
+ uint8_t endian; // image file format 0 = Doctor V64, 1 = CD64/Z64/Wc/SP.Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| typedef struct | |
| { | |
| char header_magic[6]; // The header type, should always be "APS10" for N64. (plus null char) | |
| aps_patch_type_t type; // The patch type, 0 for a Simple Patch, 1 for a N64 Specific Patch. | |
| aps_patch_encoding_t encoding_method; // Encoding Method, 0 for Simple Encoding. | |
| char description[50]; // Patch description. (plus null char) | |
| bool endian; // image file format 0 = Doctor V64, 1 = CD64/Z64/Wc/SP. | |
| uint16_t rom_id; // This is the two bytes of Cart ID taken directly from the original image. | |
| rom_destination_type_t destination_code; // The original rom image's market code. | |
| uint64_t crc; // The original image's CRC taken directly out of the original image. | |
| uint32_t size; // Size of destination image. | |
| } aps_patch_header_t; | |
| typedef struct | |
| { | |
| char header_magic[6]; // The header type, should always be "APS10" for N64. (plus null char) | |
| aps_patch_type_t type; // The patch type, 0 for a Simple Patch, 1 for a N64 Specific Patch. | |
| aps_patch_encoding_t encoding_method; // Encoding Method, 0 for Simple Encoding. | |
| char description[50]; // Patch description. (plus null char) | |
| uint8_t endian; // image file format 0 = Doctor V64, 1 = CD64/Z64/Wc/SP. | |
| uint16_t rom_id; // This is the two bytes of Cart ID taken directly from the original image. | |
| rom_destination_type_t destination_code; // The original rom image's market code. | |
| uint64_t crc; // The original image's CRC taken directly out of the original image. | |
| uint32_t size; // Size of destination image. | |
| } aps_patch_header_t; |
| #include "rom_info.h" | ||
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| static const char *patch_rom_bps_extensions[] = { "aps", NULL }; |
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Is this a typo? "aps" is used for both APS and BPS here.
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Very likely. It has been a while since I worked on it.
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Superseeded by #340 |
2 participants
Description
Adds a basic skeleton for N64 ROM patch support.
Working under the assumption it should act in the same way as current 64DD expansion support.
Motivation and Context
We need patch support.
How Has This Been Tested?
Screenshots
Types of changes
Checklist:
Signed-off-by: GITHUB_USER <GITHUB_USER_EMAIL>
Summary by CodeRabbit
New Features
Bug Fixes
Documentation