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diff runtime.S @ 150:3e68e517cc01

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Do a sync when interrupt mask changes so we can recompute the next interrupt cycle. Also fix a bug in which the SR part of ORI to SR was not being performed.
author Mike Pavone <pavone@retrodev.com>
date Tue, 01 Jan 2013 09:40:17 -0800
parents 139e5dcd6aa3
children 79958b95526f
line wrap: on
line diff
--- a/runtime.S	Tue Jan 01 07:06:57 2013 -0800
+++ b/runtime.S	Tue Jan 01 09:40:17 2013 -0800
@@ -1,8 +1,10 @@
 
 	.global handle_cycle_limit
+	.global do_sync
 handle_cycle_limit:
 	cmp 84(%rsi), %eax
 	jb skip_sync
+do_sync:
 	call m68k_save_context
 	mov %rsi, %rdi
 	call sync_components
@@ -49,9 +51,14 @@
 	/* discard function return address */
 	pop %rdi
 	jmp *%rcx
+	ret
 skip_int:
+	cmp 84(%rsi), %eax
+	jnb do_sync
 	ret
 	
+	.global do_sync
+	
 int_dbg_msg:
 	.asciz "Executing Interrupt!"
 print_int_dbg: