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RP06: truncated read fix

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folkert van heusden 2024-06-13 09:52:24 +02:00
parent e291d2d163
commit 77dbd486d2
Signed by untrusted user who does not match committer: folkert
GPG key ID: 6B6455EDFEED3BD1
1 changed files with 5 additions and 4 deletions
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9
rp06.cpp
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@ -182,11 +182,12 @@ void rp06::write_word(const uint16_t addr, uint16_t v)
uint32_t nw = 65536 - registers[reg_num(RP06_WC)];
uint32_t nb = nw * 2;
DOLOG(debug, false, "RP06: reading %u bytes from %u (dec) to %06o (oct)", nw, offs, addr);
uint8_t xfer_buffer[SECTOR_SIZE] { };
uint32_t end_offset = offs + nb;
for(uint32_t cur_offset = offs; cur_offset<end_offset; cur_offset += SECTOR_SIZE) {
uint32_t cur_n = std::min(end_offset - cur_offset, SECTOR_SIZE);
uint8_t xfer_buffer[SECTOR_SIZE] { };
for(uint32_t cur_offset = offs; cur_offset<offs + nb; cur_offset += SECTOR_SIZE) {
uint32_t cur_n = std::min(nb - cur_offset, SECTOR_SIZE);
DOLOG(debug, false, "RP06: reading %u bytes from %u (dec) to %06o (oct)", cur_n, offs, addr);
if (!fhs.at(0)->read(cur_offset, cur_n, xfer_buffer, SECTOR_SIZE)) {
DOLOG(ll_error, true, "RP06 read error %s from %u", strerror(errno), cur_offset);