mirror of
https://github.com/cmosher01/Epple-II.git
synced 2024-06-09 23:29:39 +00:00
clearPulse was happening too soon for reading 13-sector disks
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parent
d0873ead1b
commit
c04ab77f43
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@ -156,23 +156,23 @@ void AddressBus::readSwitch(unsigned short address) {
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this->data = this->slts.io(islot, iswch, this->data, false);
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///////////////////////////////////////////////
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// debug raw nibble disk reads
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if (islot==6 && ((this->data & 0x80u) != 0u)) {
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if (debugfirst) {
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debugfirst = false;
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for (int i = 0; i < 128; ++i) {
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printf("%02X", i);
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}
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printf("\n");
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}
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printf("%02X", this->data);
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++debugoutpos;
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if (128 <= debugoutpos) {
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debugoutpos = 0;
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printf("\n");
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// if (islot==6 && ((this->data & 0x80u) != 0u)) {
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// if (debugfirst) {
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// debugfirst = false;
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// for (int i = 0; i < 128; ++i) {
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// printf("%02X", i);
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// }
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// printf("\n");
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// }
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// printf("%02X", this->data);
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// ++debugoutpos;
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// if (128 <= debugoutpos) {
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// debugoutpos = 0;
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// printf("\n");
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// DiskController* dsk = (DiskController*)(this->slts.get(6));
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// dsk->dumpLss();
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}
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}
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// }
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// }
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///////////////////////////////////////////////
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}
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}
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@ -109,15 +109,14 @@ void DiskController::tick() {
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// run two LSS cycles = 2MHz
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rotateCurrentDisk();
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stepLss();
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rotateCurrentDisk();
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stepLss();
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// pulse lasts only 500 nanoseconds (1 LSS clock cycle), so clear it now:
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this->currentDrive->clearPulse();
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rotateCurrentDisk();
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stepLss();
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}
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void DiskController::rotateCurrentDisk() {
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176
src/lss.cpp
176
src/lss.cpp
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@ -22,19 +22,11 @@
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#include <algorithm>
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#include <iterator>
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static void setcmd(std::array<std::uint8_t, 0x100> &lssrom, std::uint8_t x, std::uint8_t cmd) {
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lssrom.at(x) = (lssrom.at(x) & 0xF0u) | cmd;
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}
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static void setseq(std::array<std::uint8_t, 0x100> &lssrom, std::uint8_t x, std::uint8_t seq) {
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lssrom.at(x) = (lssrom.at(x) & 0x0Fu) | seq;
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}
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static void setbth(std::array<std::uint8_t, 0x100> &lssrom, std::uint8_t x, std::uint8_t both) {
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lssrom.at(x) = both;
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}
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static void inst(std::uint8_t seq, std::uint8_t inst) {
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static void inst_sym(std::uint8_t seq, std::uint8_t inst) {
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const std::uint8_t next_seq((inst & 0xF0u) >> 4);
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const bool stdseq((seq == 0x0Fu && next_seq == 0x00u) || next_seq == seq+1);
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const std::uint8_t cmd(inst & 0x0Fu);
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@ -71,34 +63,89 @@ static void inst(std::uint8_t seq, std::uint8_t inst) {
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printf(" ");
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}
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static void showua2seq(const std::array<std::uint8_t, 0x100> &lssrom, std::uint8_t seq) {
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static void inst_hex(std::uint8_t seq, std::uint8_t inst) {
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const std::uint8_t next_seq((inst & 0xF0u) >> 4);
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const bool stdseq((seq == 0x0Fu && next_seq == 0x00u) || next_seq == seq+1);
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const std::uint8_t cmd(inst & 0x0Fu);
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printf("%02X ", inst);
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}
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static void inst(std::uint8_t seq, std::uint8_t inst, bool sym = true) {
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if (sym) {
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inst_sym(seq, inst);
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} else {
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inst_hex(seq, inst);
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}
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}
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static void showua2seq(const std::array<std::uint8_t, 0x100> &lssrom, std::uint8_t seq, bool sym = true) {
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const std::uint8_t s(seq >> 4);
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printf("%1X: | ", s);
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inst(s,lssrom.at(seq|0x9));
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inst(s,lssrom.at(seq|0xB));
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inst(s,lssrom.at(seq|0xD));
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inst(s,lssrom.at(seq|0xF));
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inst(s,lssrom.at(seq|0x9),sym);
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inst(s,lssrom.at(seq|0xB),sym);
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inst(s,lssrom.at(seq|0xD),sym);
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inst(s,lssrom.at(seq|0xF),sym);
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printf("| ");
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inst(s,lssrom.at(seq|0x8));
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inst(s,lssrom.at(seq|0xA));
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inst(s,lssrom.at(seq|0xC));
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inst(s,lssrom.at(seq|0xE));
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inst(s,lssrom.at(seq|0x8),sym);
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inst(s,lssrom.at(seq|0xA),sym);
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inst(s,lssrom.at(seq|0xC),sym);
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inst(s,lssrom.at(seq|0xE),sym);
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printf("| ");
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inst(s,lssrom.at(seq|0x1));
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inst(s,lssrom.at(seq|0x0));
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inst(s,lssrom.at(seq|0x3));
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inst(s,lssrom.at(seq|0x2));
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inst(s,lssrom.at(seq|0x1),sym);
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inst(s,lssrom.at(seq|0x0),sym);
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inst(s,lssrom.at(seq|0x3),sym);
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inst(s,lssrom.at(seq|0x2),sym);
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printf("| ");
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inst(s,lssrom.at(seq|0x5));
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inst(s,lssrom.at(seq|0x4));
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inst(s,lssrom.at(seq|0x7));
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inst(s,lssrom.at(seq|0x6));
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inst(s,lssrom.at(seq|0x5),sym);
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inst(s,lssrom.at(seq|0x4),sym);
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inst(s,lssrom.at(seq|0x7),sym);
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inst(s,lssrom.at(seq|0x6),sym);
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printf("\n");
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if (s == 7) {
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printf(" +-------------------------+-------------------------+-------------------------+------------------------\n");
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}
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}
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void LSS::dump() const {
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printf("%s\n", "Disk ][ Controller Logic State Sequencer ROM:");
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if (this->use13Sector) {
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printf("%s\n", "for 13-sector disks");
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for (unsigned int seq = 0; seq < 0x100u; seq += 0x10u) {
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showua2seq(this->lss13rom,seq);
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}
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// printf("%s\n", "===================================================");
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// for (unsigned int seq = 0; seq < 0x100u; seq += 0x10u) {
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// showua2seq(this->lss13rom,seq,false);
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// }
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} else {
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printf("%s\n", "for 16-sector disks");
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for (unsigned int seq = 0; seq < 0x100u; seq += 0x10u) {
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showua2seq(this->lssrom,seq);
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}
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// printf("%s\n", "===================================================");
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// for (unsigned int seq = 0; seq < 0x100u; seq += 0x10u) {
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// showua2seq(this->lssrom,seq,false);
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// }
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}
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}
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static void setcmd(std::array<std::uint8_t, 0x100> &lssrom, std::uint8_t x, std::uint8_t cmd) {
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lssrom.at(x) = (lssrom.at(x) & 0xF0u) | cmd;
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}
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static void setseq(std::array<std::uint8_t, 0x100> &lssrom, std::uint8_t x, std::uint8_t seq) {
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lssrom.at(x) = (lssrom.at(x) & 0x0Fu) | seq;
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}
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static void setbth(std::array<std::uint8_t, 0x100> &lssrom, std::uint8_t x, std::uint8_t both) {
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lssrom.at(x) = both;
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}
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LSS::LSS(bool use13SectorDos32LSS):
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use13Sector(use13SectorDos32LSS) {
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@ -230,77 +277,6 @@ LSS::LSS(bool use13SectorDos32LSS):
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LSS::~LSS() {
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}
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void LSS::dump() const {
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printf("%s\n", "Disk ][ Controller Logic State Sequencer ROM:");
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if (this->use13Sector) {
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printf("%s\n", "for 13-sector disks");
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for (unsigned int seq = 0; seq < 0x100u; seq += 0x10u) {
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showua2seq(this->lss13rom,seq);
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}
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// printf("%s\n", "===================================================");
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// for (int r = 0; r < 0x10; ++r) {
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// for (int c = 0; c < 0x10; ++c) {
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// printf("%02X ", this->lss13rom.at(r*0x10+c));
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// }
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// printf("\n");
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// }
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} else {
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printf("%s\n", "for 16-sector disks");
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for (unsigned int seq = 0; seq < 0x100u; seq += 0x10u) {
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showua2seq(this->lssrom,seq);
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}
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// printf("%s\n", "===================================================");
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// for (int r = 0; r < 0x10; ++r) {
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// for (int c = 0; c < 0x10; ++c) {
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// printf("%02X ", this->lssrom.at(r*0x10+c));
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// }
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// printf("\n");
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// }
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}
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}
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/*
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* AA 10101010
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* AE 10101110
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* B6 10110110
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* BA 10111010
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* BE 10111110
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* D6 11010110
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* DA 11011010
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* DE 11011110
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* EA 11101010
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* EE 11101110
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* F6 11110110
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* FA 11111010
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* FE 11111110
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*/
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std::uint8_t LSS::read(const std::uint8_t addr) {
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int i = addr;
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i &= 0x000000FF;
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if (0x100 <= i) {
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throw std::runtime_error("bad lss ROM read");
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}
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//return use13Sector ? lss13rom[addr] : lssrom[addr];
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std::uint8_t r = 0;
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if (this->use13Sector) {
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const std::uint8_t candidate = this->lss13rom.at(i);
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if (candidate == 0x44u) {
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throw std::runtime_error("attempt to read uninitialized LSS ROM");
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}
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r = candidate;
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} else {
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const std::uint8_t candidate = this->lssrom.at(i);
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if (candidate == 0x44u) {
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throw std::runtime_error("attempt to read uninitialized LSS ROM");
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}
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r = candidate;
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}
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return r;
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std::uint8_t LSS::read(const std::uint8_t addr) const {
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return this->use13Sector ? this->lss13rom.at(addr) : this->lssrom.at(addr);
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}
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@ -34,7 +34,7 @@ public:
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LSS(bool use13SectorDos32LSS);
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~LSS();
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std::uint8_t read(const std::uint8_t addr);
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std::uint8_t read(const std::uint8_t addr) const;
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void dump() const;
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};
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@ -544,17 +544,18 @@ void WozFile::rotateOneBit(std::uint8_t currentQuarterTrack) {
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// previous, based on each track's length (tracks can be of
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// different lengths in the WOZ image).
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if (currentQuarterTrack != this->lastQuarterTrack) {
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printf("\nswitching from tmap[%02x] --> [%02x]\n", this->lastQuarterTrack, currentQuarterTrack);
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// printf("switching from tmap[%02x] --> [%02x]\n", this->lastQuarterTrack, currentQuarterTrack);
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const double oldLen = this->trk_bits[this->tmap[this->lastQuarterTrack]];
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const double newLen = this->trk_bits[this->tmap[currentQuarterTrack]];
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const double ratio = newLen/oldLen;
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if (!(fabs(1-ratio) < 0.0001)) {
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const std::uint16_t newBit = static_cast<std::uint16_t>(round((this->byt*8+bc(this->bit)) * ratio));
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printf("... detected non 1:1 ratio: %f\n", ratio);
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printf("... old byt/bit: %hu/%hu\n", this->byt, this->bit);
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const std::uint8_t orig_bit = this->bit;
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const std::uint16_t orig_byt = this->byt;
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this->byt = newBit / 8;
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this->bit = cb(newBit % 8);
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printf("... new byt/bit: %hu/%hu\n", this->byt, this->bit);
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printf("woz detected non 1:1 track size ratio: %f; adjusting byte/bit: %04X/%02X --> %04X/%02X\n",
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ratio, orig_byt, orig_bit, this->byt, this->bit);
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}
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this->lastQuarterTrack = currentQuarterTrack;
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}
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