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RP06: WRITE, SEARCH

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folkert van heusden 2024-06-13 18:56:56 +02:00
parent 0cca165e56
commit 1b786990aa
Signed by untrusted user who does not match committer: folkert
GPG key ID: 6B6455EDFEED3BD1
1 changed files with 31 additions and 10 deletions
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41
rp06.cpp
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@ -172,7 +172,13 @@ void rp06::write_word(const uint16_t addr, uint16_t v)
generate_interrupt = true; generate_interrupt = true;
} }
else if (function_code == 070) { // READ else if (function_code == 030) { // SEARCH
registers[reg_num(RP06_CS1)] |= uint16_t(rp06::cs1_bits::RDY); // drive ready
registers[reg_num(RP06_CC)] = registers[reg_num(RP06_DC)];
generate_interrupt = true;
}
else if (function_code == 060 || function_code == 070) { // WRITE (060), READ (070)
uint32_t offs = compute_offset(); uint32_t offs = compute_offset();
uint32_t addr = getphysaddr(); uint32_t addr = getphysaddr();
@ -184,17 +190,32 @@ void rp06::write_word(const uint16_t addr, uint16_t v)
for(uint32_t cur_offset = offs; cur_offset<end_offset; cur_offset += SECTOR_SIZE) { 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); uint32_t cur_n = std::min(end_offset - cur_offset, SECTOR_SIZE);
DOLOG(debug, false, "RP06: reading %u bytes from %u (dec) to %06o (oct)", cur_n, offs, addr); if (function_code == 070) {
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)) { 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); DOLOG(ll_error, true, "RP06 read error %s from %u", strerror(errno), cur_offset);
//registers[(RK05_ERROR - RK05_BASE) / 2] |= 32; // non existing sector //registers[(RK05_ERROR - RK05_BASE) / 2] |= 32; // non existing sector
//registers[(RK05_CS - RK05_BASE) / 2] |= 3 << 14; // an error occured //registers[(RK05_CS - RK05_BASE) / 2] |= 3 << 14; // an error occured
break; break;
}
for(uint32_t i=0; i<cur_n; i++)
b->writeUnibusByte(addr++, xfer_buffer[i]);
} }
else {
DOLOG(debug, false, "RP06: writing %u bytes to %u (dec) from %06o (oct)", cur_n, offs, addr);
for(uint32_t i=0; i<cur_n; i++) for(uint32_t i=0; i<cur_n; i++)
b->writeUnibusByte(addr++, xfer_buffer[i]); xfer_buffer[i] = b->readUnibusByte(addr++);
if (!fhs.at(0)->write(cur_offset, cur_n, xfer_buffer, SECTOR_SIZE)) {
DOLOG(ll_error, true, "RP06 write error %s from %u", strerror(errno), cur_offset);
//registers[(RK05_ERROR - RK05_BASE) / 2] |= 32; // non existing sector
//registers[(RK05_CS - RK05_BASE) / 2] |= 3 << 14; // an error occured
break;
}
}
} }
registers[reg_num(RP06_WC)] = 0; registers[reg_num(RP06_WC)] = 0;
@ -203,7 +224,7 @@ void rp06::write_word(const uint16_t addr, uint16_t v)
generate_interrupt = true; generate_interrupt = true;
} }
else { else {
DOLOG(debug, false, "RP06: command %03o not implemented", function_code); DOLOG(warning, true, "RP06: command %03o not implemented", function_code);
} }
if (generate_interrupt) { if (generate_interrupt) {