# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1672382675 28800
# Node ID bf1bb893f1047c64ae2a569ea4faa96c529b2df3
# Parent  ff726f53d75aefad064abc2962db137a35aee131
Properly ignore low bits of SP start address in disassembler

diff -r ff726f53d75a -r bf1bb893f104 dis.c
--- a/dis.c	Thu Dec 29 19:52:40 2022 -0800
+++ b/dis.c	Thu Dec 29 22:44:35 2022 -0800
@@ -252,6 +252,7 @@
 				do_cd_labels = 1;
 			} else {
 				uint32_t sub_start =filebuf[0x40/2] << 16 | filebuf[0x42/2];
+				sub_start &= ~0x7FF;
 				uint32_t sub_end = sub_start + (filebuf[0x44/2] << 16 | filebuf[0x46/2]);
 				if (sub_start > (boot_size - 0x20)) {
 					fprintf(stderr, "System Program start offset is %X, but image is only %X bytes\n", sub_start, (uint32_t)boot_size);