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/**
* Generate a single S-Record line (S1 format, 16-bit addresses)
* @param {number} addr - Starting address for this line
* @param {number[]} buffer - Array of data bytes
* @returns {string} S-Record line
*/
const srecLine = (addr, buffer) => {
let s = "S1";
let len = buffer.length;
let checksum = 0;
s += toHex2(len + 3); // Record length (data + address + checksum)
s += toHex4(addr); // 16-bit address
// Calculate checksum from length and address bytes
checksum = len + 3 + Math.floor(addr / 256) + Math.floor(addr % 256);
// Add data bytes and update checksum
for (let i = 0; i < buffer.length; i++) {
s += toHex2(buffer[i]);
checksum += buffer[i];
}
// Add one's complement checksum
s += toHex2(256 - (checksum % 256));
return s;
};
/**
* Generate S-Record format from data array (16-bit addresses)
* @param {number} addr - Starting address
* @param {number[]} dta - Data bytes
* @returns {string} S-Record formatted string
*/
const makeSrec = (addr, dta) => {
let inter = 0;
let buffer = [];
let ilen = 16;
let out = "";
for (let i = 0; i < dta.length; i++) {
buffer.push(dta[i]);
if (++inter === ilen) {
// Flush buffer when line is full
out += srecLine(addr, buffer) + "\n";
buffer = [];
inter = 0;
addr += ilen;
}
}
// Flush remaining bytes
if (buffer.length) {
out += srecLine(addr, buffer) + "\n";
}
return out;
};
/**
* Generate Motorola S-Record format output (S1/S9 format for 16-bit addresses)
* @param {Object} result - Compilation result containing dump array
* @param {string} [segment] - Optional segment filter (e.g., "CSEG", "DSEG")
* @returns {string} Complete S-Record file content with S9 termination record
*/
export const isrec = (result, segment) => {
let V=result.dump;
let op;
let addr = null;
let len = 0;
let segments = false;
let dta = [];
let out = "";
for (let i = 0, j = V.length; i < j; i++) {
op = V[i];
// Process pragma directives
if (op.opcode === ".PRAGMA") {
if (op.params.length == 1 && op.params[0].toUpperCase() == "SEGMENT") {
segments = true;
}
}
// Skip conditional assembly blocks
if (op.ifskip) continue;
// Filter by segment if specified
if (typeof op.segment !== "undefined" && typeof segment !== "undefined" && op.segment != segment) continue;
if (segments) {
if (!segment) segment = "CSEG"; // Default to code segment
if (op.segment != segment) continue;
}
let opaddr = op.addr;
// Adjust for phase directive
if (op.phase) opaddr -= op.phase;
// Set initial address
if (opaddr !== undefined && len === 0) {
addr = opaddr;
}
// Check for address discontinuity
if (opaddr != addr + len) {
if (len) {
// Flush current data block
out += makeSrec(addr, dta);
}
addr = opaddr;
len = 0;
dta = [];
}
// Add instruction bytes to data array
if (op.lens) {
for (let n = 0; n < op.lens.length; n++) {
dta.push(op.lens[n]);
}
len += op.lens.length;
continue;
}
}
// Flush final data block
if (dta.length) {
out += makeSrec(addr, dta);
}
// Add S9 termination record with entry point
let ent = result.opts?result.opts.ENT: result.entry.address || 0;
let checksum = 3 + Math.floor(ent / 256) + Math.floor(ent % 256);
out += "S903" + toHex4(ent) + toHex2(255 - (checksum % 256));
return out;
};
/**
* Generate a single S-Record line (S2 format, 24-bit addresses)
* @param {number} addr - Starting address for this line
* @param {number[]} buffer - Array of data bytes
* @returns {string} S-Record line with 24-bit address
*/
const srecLine28 = (addr, buffer) => {
let s = "S2";
let len = buffer.length;
let checksum = 0;
s += toHex2(len + 4); // Record length (data + 3-byte address + checksum)
s += toHex6(addr); // 24-bit address
// Calculate checksum from length and all address bytes
checksum =
len +
4 +
Math.floor(addr / 65536) + // High byte
(Math.floor(addr / 256) % 256) + // Middle byte
Math.floor(addr % 256); // Low byte
// Add data bytes and update checksum
for (let i = 0; i < buffer.length; i++) {
s += toHex2(buffer[i]);
checksum += buffer[i];
}
// Add one's complement checksum
s += toHex2(255 - (checksum % 256));
return s;
};
/**
* Generate S-Record format from data array (24-bit addresses)
* @param {number} addr - Starting address
* @param {number[]} dta - Data bytes
* @returns {string} S-Record formatted string with 24-bit addresses
*/
const makeSrec28 = (addr, dta) => {
let inter = 0;
let buffer = [];
let ilen = 16;
let out = "";
for (let i = 0; i < dta.length; i++) {
buffer.push(dta[i]);
if (++inter === ilen) {
// Flush buffer when line is full
out += srecLine28(addr, buffer) + "\n";
buffer = [];
inter = 0;
addr += ilen;
}
}
// Flush remaining bytes
if (buffer.length) {
out += srecLine28(addr, buffer) + "\n";
}
return out;
};
/**
* Generate Motorola S-Record format output (S2/S8 format for 24-bit addresses)
* @param {Object} result - Compilation result containing dump array
* @param {string} [segment] - Optional segment filter (e.g., "CSEG", "DSEG")
* @returns {string} Complete S-Record file content with S8 termination record
*/
export const isrec28 = (result, segment) => {
let V=result.dump;
let ln;
let op;
let addr = null;
let len = 0;
let segments = false;
let dta = [];
let out = "";
for (let i = 0, j = V.length; i < j; i++) {
op = V[i];
// Process pragma directives
if (op.opcode === ".PRAGMA") {
if (op.params.length == 1 && op.params[0].toUpperCase() == "SEGMENT") {
segments = true;
}
}
// Skip conditional assembly blocks
if (op.ifskip) continue;
// Filter by segment if specified
if (typeof op.segment !== "undefined" && typeof segment !== "undefined" && op.segment != segment) continue;
if (segments) {
if (!segment) segment = "CSEG"; // Default to code segment
if (op.segment != segment) continue;
}
let opaddr = op.addr;
// Adjust for phase directive
if (op.phase) opaddr -= op.phase;
// Set initial address
if (opaddr !== undefined && len === 0) {
addr = opaddr;
}
// Check for address discontinuity
if (opaddr != addr + len) {
if (len) {
// Flush current data block
out += makeSrec28(addr, dta);
}
addr = opaddr;
len = 0;
dta = [];
}
// Add instruction bytes to data array
if (op.lens) {
for (let n = 0; n < op.lens.length; n++) {
dta.push(op.lens[n]);
}
len += op.lens.length;
continue;
}
}
// Flush final data block
if (dta.length) {
out += makeSrec28(addr, dta);
}
// Add S8 termination record with 24-bit entry point
let ent = result.opts?result.opts.ENT: result.entry.address || 0;
let checksum = 3 + Math.floor(ent / 256) + Math.floor(ent % 256);
out += "S804" + toHex6(ent) + toHex2(255 - (checksum % 256)) + "\n";
return out;
};
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