some poor timing improvement attempts

[picodrive.git] / pico / pico_int.h

diff --git a/pico/pico_int.h b/pico/pico_int.h
index 97b7b0e..f439d6a 100644 (file)
--- a/pico/pico_int.h
+++ b/pico/pico_int.h
@@ -185,6 +185,7 @@ extern struct DrZ80 drZ80;
 #define z80_nmi()          drZ80.Z80IF |= 8\r
 \r
 #define z80_cyclesLeft     drZ80.cycles\r
+#define z80_subCLeft(c)    drZ80.cycles -= c\r
 #define z80_pc()           (drZ80.Z80PC - drZ80.Z80PC_BASE)\r
 \r
 #elif defined(_USE_CZ80)\r
@@ -196,6 +197,7 @@ extern struct DrZ80 drZ80;
 #define z80_nmi()          Cz80_Set_IRQ(&CZ80, IRQ_LINE_NMI, 0)\r
 \r
 #define z80_cyclesLeft     (CZ80.ICount - CZ80.ExtraCycles)\r
+#define z80_subCLeft(c)    CZ80.ICount -= c\r
 #define z80_pc()           Cz80_Get_Reg(&CZ80, CZ80_PC)\r
 \r
 #else\r