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Diffstat (limited to 'z80.cpu')
-rw-r--r--z80.cpu41
1 files changed, 38 insertions, 3 deletions
diff --git a/z80.cpu b/z80.cpu
index 0969456..1c7945c 100644
--- a/z80.cpu
+++ b/z80.cpu
@@ -879,18 +879,53 @@ ed 01110010 sbc_hl_sp
update_flags SZYH0PXN0C0
10111RRR cp_reg
+ mov main.R last_flag_result
cmp main.R a
- update_flags SZYHVXN1C
+ update_flags SZHVN1C
+
+dd 10111100 cp_ixh
+ lsr ix 8 last_flag_result
+ cmp last_flag_result a
+ update_flags SZHVN1C
+
+dd 10111101 cp_ixl
+ mov ix last_flag_result
+ cmp last_flag_result a
+ update_flags SZHVN1C
+
+fd 10111100 cp_iyh
+ lsr iy 8 last_flag_result
+ cmp last_flag_result a
+ update_flags SZHVN1C
+
+fd 10111101 cp_iyl
+ mov iy last_flag_result
+ cmp last_flag_result a
+ update_flags SZHVN1C
10111110 cp_hl
z80_fetch_hl
+ mov scratch1 last_flag_result
cmp scratch1 a
- update_flags SZYHVXN1C
+ update_flags SZHVN1C
+
+dd 10111110 cp_ixd
+ z80_fetch_index ix
+ mov scratch1 last_flag_result
+ cmp scratch1 a
+ update_flags SZHVN1C
+
+fd 10111110 cp_iyd
+ z80_fetch_index iy
+ mov scratch1 last_flag_result
+ cmp scratch1 a
+ update_flags SZHVN1C
11111110 cp_immed
z80_fetch_immed
+ mov scratch1 last_flag_result
cmp scratch1 a
- update_flags SZYHVXN1C
+ update_flags SZHVN1C
00RRR100 inc_reg
add 1 main.R main.R