From a4edd40c35e2784691936662a8a89463cc434f9a Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Tue, 21 Jul 2026 10:20:48 -0700
Subject: Spires feeding into SPICE crossbar

---
 src/spires_interface.c | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 src/spires_interface.c

(limited to 'src/spires_interface.c')

diff --git a/src/spires_interface.c b/src/spires_interface.c
new file mode 100644
index 0000000..c920c33
--- /dev/null
+++ b/src/spires_interface.c
@@ -0,0 +1,80 @@
+#include "spires_interface.h"
+#include <spires.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+
+int collect_reservoir_states(
+        const spires_reservoir *reservoir,
+        const double *input_series,
+        size_t series_length,
+        Reservoir_State_Matrix *result
+) {
+    //error checking
+    //RIP
+
+    //clear the result first 
+    //
+    result->num_samples = 0;
+    result->num_features = 0;
+    result->states = NULL;
+
+    const size_t num_inputs = spires_num_inputs(reservoir);
+
+    const size_t num_neurons = spires_num_neurons(reservoir);
+
+    if (series_length > SIZE_MAX / num_neurons || series_length * num_neurons 
+            > SIZE_MAX / sizeof(double)) {
+        fprintf(stderr, "matrix size overloaded!!");
+        return -1;
+    }
+
+    double *states = malloc(num_neurons * series_length * sizeof(*states));
+    if (!states) {
+        fprintf(stderr, "failed to allocate memory for states");
+        return -1;
+    }
+
+    spires_status status = spires_reservoir_reset(reservoir);
+    if (status != SPIRES_OK) {
+        fprintf(stderr, "reservoir reset error");
+        free(states);
+        return -1;
+    }
+    
+    // build state_matrix
+    for (size_t i = 0; i < series_length; i++) {
+        const double *current_input = &input_series[i * num_inputs];
+        status = spires_step(reservoir, current_input);
+        if (status != SPIRES_OK){
+            free(states);
+            return -1;
+        }
+
+        double *current_state = &states[i * num_neurons];
+        status = spires_read_reservoir_state(reservoir, current_state);
+        if (status != SPIRES_OK){
+            free(states);
+            return -1;
+        }
+    }
+
+    result->num_samples = series_length;
+    result->num_features = num_neurons;
+    result->states = states;
+
+    return 0;
+}
+
+void free_reservoir_state_matrix(Reservoir_State_Matrix *matrix) {
+    if (!matrix) {
+        return;
+    }
+
+    free(matrix->states);
+
+    matrix->states = NULL;
+    matrix->num_samples = 0;
+    matrix->num_features = 0;
+}
-- 
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