add comment about HALT

1 files changed, 7 insertions, 2 deletions

diff --git a/ops.yaml b/ops.yaml
index a9fde28..27950ac 100644
--- a/ops.yaml
+++ b/ops.yaml
@@ -9212,7 +9212,7 @@ templates:
     }
 
     static void
-    gb_handle_interrupts(
+    cpu_handle_interrupts(
       gb_t * const ctx
     ) {
       if (ctx->cpu.state == STATE_RUN) {
@@ -9253,6 +9253,11 @@ templates:
 
           // has this interrupt been triggered?
           if (iv & mask) {
+            // if IME is set, then jump to interrupt handler
+            // if IME is not set, then PC starts at first instruction
+            // after HALT
+            // (TCAGBD.pdf, 4.9)
+
             // wake cpu
             ctx->cpu.state = STATE_RUN;
 
@@ -9285,7 +9290,7 @@ templates:
       gb_t * const ctx
     ) {
       // handle pending interrupts
-      gb_handle_interrupts(ctx);
+      cpu_handle_interrupts(ctx);
 
       // advance cpu
       const uint16_t clock = cpu_step(ctx);