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| #include <stdint.h> | |
| #include <stdbool.h> | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| // This offset is only for UDNL modules in kHn unpacked PSBBN 0.32... | |
| // Adjust if needed | |
| #define DATA_OFFSET 0x1720 | |
| int psbbn_ioprp_decompress(uint8_t *a1, uint8_t *a2) | |
| { | |
| uint32_t *v1; | |
| int v2; // $t1 | |
| uint8_t *v3; // $t2 | |
| uint8_t *v4; // $t0 | |
| int v5; // $a1 | |
| int v6; // $a0 | |
| int v7; // $a1 | |
| int v8; // $a2 | |
| int v9; // $a1 | |
| int v10; // $a1 | |
| int v11; // $a2 | |
| int v12; // $a1 | |
| int v13; // $a1 | |
| int v14; // $a2 | |
| int v15; // $a1 | |
| int v16; // $a1 | |
| int v17; // $a1 | |
| int v18; // $a0 | |
| int v19; // $a2 | |
| int v20; // $a1 | |
| int v21; // $a0 | |
| int v22; // $a0 | |
| unsigned int v23; // $v1 | |
| uint8_t *v24; // $a1 | |
| int v25; // $v1 | |
| char v26; // $v0 | |
| uint8_t *v27; // $a1 | |
| char v28; // $v0 | |
| int v30; // [sp+0h] [-30h] | |
| int v31; // [sp+4h] [-2Ch] | |
| int v32; // [sp+4h] [-2Ch] | |
| int v33; // [sp+4h] [-2Ch] | |
| int v34; // [sp+4h] [-2Ch] | |
| char v35; // [sp+Ch] [-24h] | |
| int v36; // [sp+10h] [-20h] | |
| uint8_t *v37; // [sp+14h] [-1Ch] | |
| uint8_t *v38; // [sp+14h] [-1Ch] | |
| uint8_t *v39; // [sp+14h] [-1Ch] | |
| uint8_t *v40; // [sp+14h] [-1Ch] | |
| unsigned int v41; // [sp+18h] [-18h] | |
| uint8_t *v42; // [sp+20h] [-10h] | |
| uint8_t *v43; // [sp+20h] [-10h] | |
| uint8_t *v44; // [sp+20h] [-10h] | |
| uint8_t *v45; // [sp+20h] [-10h] | |
| uint8_t *v46; // [sp+24h] [-Ch] | |
| uint8_t *v47; // [sp+28h] [-8h] | |
| v1 = (uint32_t *)a1; | |
| v2 = 0; | |
| v30 = *v1; | |
| v3 = &a2[v1[0] - v1[1]]; | |
| v41 = v1[1]; | |
| v4 = v3; | |
| v42 = (uint8_t *)(v1 + 4); | |
| v46 = (uint8_t *)(v1 + 4); | |
| v37 = (uint8_t *)v1 + v1[2] + 16; | |
| v47 = v37; | |
| while ( 1 ) | |
| { | |
| if ( !v2 ) | |
| { | |
| v2 = 30; | |
| v5 = *v42; | |
| v6 = *v37; | |
| v38 = v37 + 1; | |
| v43 = v42 + 1; | |
| v7 = v6 ^ v5; | |
| if ( v47 == v43 ) | |
| v43 = v46; | |
| v32 = v7 << 8; | |
| v8 = *v43; | |
| v9 = *v38; | |
| v44 = v43 + 1; | |
| v39 = v38 + 1; | |
| v10 = v9 ^ v8; | |
| if ( v47 == v44 ) | |
| v44 = v46; | |
| v33 = (v32 | v10) << 8; | |
| v11 = *v44; | |
| v12 = *v39; | |
| v45 = v44 + 1; | |
| v40 = v39 + 1; | |
| v13 = v12 ^ v11; | |
| if ( v47 == v45 ) | |
| v45 = v46; | |
| v34 = (v33 | v13) << 8; | |
| v14 = *v45; | |
| v15 = *v40; | |
| v42 = v45 + 1; | |
| v37 = v40 + 1; | |
| v16 = v15 ^ v14; | |
| if ( v47 == v42 ) | |
| v42 = v46; | |
| v31 = v34 | v16; | |
| v35 = 14 - (v31 & 3); | |
| v36 = 0x3FFF >> (v31 & 3); | |
| } | |
| v17 = *v42; | |
| v18 = *v37++; | |
| ++v42; | |
| v19 = v18 ^ v17; | |
| if ( v47 == v42 ) | |
| v42 = v46; | |
| if ( v31 >= 0 ) | |
| { | |
| *v4++ = v19; | |
| } | |
| else | |
| { | |
| v20 = *v42; | |
| v21 = *v37++; | |
| ++v42; | |
| v22 = v21 ^ v20; | |
| if ( v47 == v42 ) | |
| v42 = v46; | |
| v23 = (v19 << 8) | v22; | |
| v24 = v4 - ((v23 & v36) + 1); | |
| v25 = (v23 >> v35) + 2; | |
| v26 = *v24; | |
| v27 = v24 + 1; | |
| for ( *v4++ = v26; v25; ++v4 ) | |
| { | |
| --v25; | |
| v28 = *v27++; | |
| *v4 = v28; | |
| } | |
| } | |
| --v2; | |
| if ( v4 - v3 >= v41 ) | |
| break; | |
| v31 *= 2; | |
| } | |
| return v30; | |
| } | |
| int main(int argc, char** argv) | |
| { | |
| if (argc != 3) | |
| return 1; | |
| FILE* infile = fopen(argv[1], "rb"); | |
| if (!infile) | |
| return 2; | |
| fseek(infile, 0, SEEK_END); | |
| uint32_t cmp_sz = ftell(infile); | |
| fseek(infile, DATA_OFFSET, SEEK_SET); | |
| uint32_t unc_sz = 0; | |
| size_t read_header_sz = fread(&unc_sz, 1, 4, infile); | |
| if (read_header_sz != 4) | |
| return 3; | |
| fseek(infile, 0, SEEK_SET); | |
| uint8_t *cmp_dat = malloc(cmp_sz); | |
| if (!cmp_dat) | |
| return 4; | |
| uint8_t *unc_dat = malloc(unc_sz); | |
| if (!unc_dat) | |
| return 5; | |
| size_t read_cmp_sz = fread(cmp_dat, 1, cmp_sz, infile); | |
| if (read_cmp_sz != cmp_sz) | |
| return 6; | |
| fclose(infile); | |
| psbbn_ioprp_decompress(cmp_dat + DATA_OFFSET, unc_dat); | |
| FILE* outfile = fopen(argv[2], "wb"); | |
| if (!outfile) | |
| return 7; | |
| fwrite(unc_dat, 1, unc_sz, outfile); | |
| fclose(outfile); | |
| return 0; | |
| } |
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