0hmX/am3352

scripts/assess-ddr-f8-opposite-launch.ts

/** One distinct opposite-diagonal F8 relocation; conductor preflight only. */
import{readFileSync,writeFileSync,mkdirSync}from'node:fs'
import{resolve}from'node:path'
import{createHash}from'node:crypto'
import{verifyDdrSystemCopper,auditDdrTraceJunctions}from'./check-ddr-system-copper'
import{auditRouteAngles}from'./check-route-angles'
import{sharedViaApproaches}from'./plan-ddr-ram-power-via-reuse'
const[dirArg,outArg]=process.argv.slice(2),dir=resolve(dirArg!),out=resolve(outArg!),hash=(x:any)=>createHash('sha256').update(JSON.stringify(x)).digest('hex'),read=(p:string)=>JSON.parse(readFileSync(p,'utf8')),parent=read(`${dir}/candidate.circuit.json`),prior=read(`${dir}/report.json`),host=read(`${dir}/host-bundle.json`),input=read(`${dir}/routing-input.json`),power=read(`${dir}/ram-power-launch-audit.json`),old=read('dist/ddr-f8-relocation-experiment/report.json'),attempts:any[]=[]
if(prior.candidateCircuitSha256!==hash(parent)||![19,20].includes(host.traces.length))throw Error('Parent mismatch')
for(const byte of[0,1]){const t=parent.find((e:any)=>e.type==='pcb_trace'&&e.pcb_trace_id===`saved_fanout_pcb_group_${byte?5:3}_53`),e9=parent.find((e:any)=>e.type==='pcb_trace'&&e.pcb_trace_id===`saved_fanout_pcb_group_${byte?5:3}_65`),pad=parent.find((e:any)=>e.type==='pcb_smtpad'&&e.pcb_port_id===t.route[0].start_pcb_port_id),rendered=parent.filter((e:any)=>e.type==='pcb_via'&&e.pcb_trace_id===t.pcb_trace_id),via={x:pad.x+.4,y:pad.y+.4},target=power.rows.find((r:any)=>r.byte===byte&&r.ball==='G8').connectionVia,route=sharedViaApproaches(t.route[0],via)[0]!,moved={...t,route:[...route,{route_type:'via',...via,from_layer:'top',to_layer:'inner1',via_diameter:.4572,via_hole_diameter:.254}]},movedVia={...rendered[0],...via},removed=new Set([t.pcb_trace_id,e9.pcb_trace_id,...host.traces.map((t:any)=>t.pcb_trace_id)]),fixed=parent.filter((e:any)=>e.type!=='pcb_copper_pour'&&!removed.has(e.pcb_trace_id)),relocation=verifyDdrSystemCopper([...fixed,moved,movedVia],[...host.traces,moved],input.connections,{},50,{reportSameNetContacts:true}),reuse=sharedViaApproaches(e9.route[0],target).map(route=>{const trace={...e9,route},physical=verifyDdrSystemCopper([...fixed,moved,movedVia],[...host.traces,moved,trace],input.connections,{},50,{reportSameNetContacts:true});return{route,physical}});attempts.push({byte,via,oldVia:t.route.find((p:any)=>p.route_type==='via'),pad:{x:pad.x,y:pad.y},f8LengthMm:Math.hypot(.4,.4),padDrillGapMm:Math.hypot(.4,.4)-.127-pad.radius,moved,movedVia,relocation,reuse})}
const report={captureHash:prior.captureHash,parentCircuitSha256:hash(parent),priorExperimentSha256:hash(old),priorAttemptCount:old.attempts.length,priorHits:old.hits.length,attempts,scope:'Distinct pad+(0.4,0.4) F8 opposite-diagonal launch, not previously swept. Actual conventional barrel and all19hosts checked; planes excluded only for conductor preflight. No candidate accepted or plane policy changed.'};mkdirSync(out,{recursive:true});writeFileSync(`${out}/report.json`,JSON.stringify(report,null,2));console.log(JSON.stringify(attempts.map(a=>({byte:a.byte,via:a.via,errors:a.relocation.errors,relocationViolations:a.relocation.violations.length,blockers:a.relocation.violations.map((v:any)=>({a:v.aShape.traceId??v.aShape.join,b:v.bShape.traceId??v.bShape.join,layer:v.layer,gap:v.gapMm})),reuse:a.reuse.map((r:any)=>r.physical.violations.length)}))))