41 lines
1.0 KiB
Markdown
41 lines
1.0 KiB
Markdown
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# Todos
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- [x] How to capture arguments passed to a C program
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```c
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// argc is the number of args passed
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// argc is always 1 or more
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// argc always has name/path of program as first arg
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int main(int argc, char *argv[]) {
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// do stuff with the args
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}
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```
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- [x] How to print argument value
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```
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printf("%s", argv[1]);
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```
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- [x] Read a file
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```c
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// open file in read mode. returns NULL if doesn't exist
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FILE *file_ptr = fread(file_path, "r");
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// seeking to end of file.
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// useful telling number of bytes
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fseek(file_ptr, 0, SEEK_END);
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// get number of bytes
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int num_of_bytes = ftell(file_ptr);
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// seek to begin of file
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fseek(file_ptr, 0, SEEK_SET);
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```
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- [x] Store contents of file in memory
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- [x] Print file contents
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- [x] Print instructions
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- [x] Make sure program occupies correct space in chip memory
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- [ ] Parse individual instructions from binary CHIP-8 file
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