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DAR from read-command is valid as well

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folkert van heusden 2024-04-18 21:06:20 +02:00
parent dccfc34148
commit 87f35861d3
Signed by untrusted user who does not match committer: folkert
GPG key ID: 6B6455EDFEED3BD1
1 changed files with 7 additions and 0 deletions
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7
rl02.cpp
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@ -181,6 +181,8 @@ void rl02::writeWord(const uint16_t addr, uint16_t v)
mpr[1] = 0; // zero
mpr[2] = 0; // TODO: CRC
DOLOG(debug, false, "RL02 read header [cylinder: %d, head: %d, sector: %d] %06o", track, head, sector, mpr[0]);
do_int = true;
}
else if (command == 6 || command == 7) { // read data / read data without header check
@ -190,6 +192,11 @@ void rl02::writeWord(const uint16_t addr, uint16_t v)
uint32_t count = (65536l - registers[(RL02_MPR - RL02_BASE) / 2]) * 2;
uint16_t temp = registers[(RL02_DAR - RL02_BASE) / 2];
sector = temp & 63;
head = (temp >> 6) & 1;
track = temp >> 7;
DOLOG(debug, false, "RL02 read %d bytes (dec) from %d (dec) to %06o (oct) [cylinder: %d, head: %d, sector: %d]", count, temp_disk_offset, memory_address, track, head, sector);
update_dar();