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comparison blastem.c @ 1788:154c7b348cf1

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Fix off-by-one error in code for loading an SMD format ROM from a ZIP archive
author Michael Pavone <pavone@retrodev.com>
date Tue, 19 Mar 2019 09:27:30 -0700
parents d6d4c006a7b3
children 8aeac7bd9fa7
comparison
equal deleted inserted replaced
1786:2b661c1e431f 1788:154c7b348cf1
152 size_t out_size = nearest_pow2(z->entries[i].size); 152 size_t out_size = nearest_pow2(z->entries[i].size);
153 *dst = zip_read(z, i, &out_size); 153 *dst = zip_read(z, i, &out_size);
154 if (*dst) { 154 if (*dst) {
155 if (is_smd_format(z->entries[i].name, *dst)) { 155 if (is_smd_format(z->entries[i].name, *dst)) {
156 size_t offset; 156 size_t offset;
157 for (offset = 0; offset + SMD_BLOCK_SIZE + SMD_HEADER_SIZE < out_size; offset += SMD_BLOCK_SIZE) 157 for (offset = 0; offset + SMD_BLOCK_SIZE + SMD_HEADER_SIZE <= out_size; offset += SMD_BLOCK_SIZE)
158 { 158 {
159 uint8_t tmp[SMD_BLOCK_SIZE]; 159 uint8_t tmp[SMD_BLOCK_SIZE];
160 memcpy(tmp, *dst + offset + SMD_HEADER_SIZE, SMD_BLOCK_SIZE); 160 memcpy(tmp, *dst + offset + SMD_HEADER_SIZE, SMD_BLOCK_SIZE);
161 process_smd_block(*dst + offset, tmp, SMD_BLOCK_SIZE); 161 process_smd_block(*dst + offset, tmp, SMD_BLOCK_SIZE);
162 } 162 }