git.y1.nz

commit d096d007857827172a8477f86e4de25bd5b4d228
parent db154c4740d54d306f97a0f4af08821a9db06590
Author: Toxa <untoxa@mail.ru>
Date:   Wed,  8 Sep 2021 19:57:21 +0300

cancel_pending_interrupts()

Diffstat:
M
gbdk-lib/include/gb/gb.h
6
+++++-
M
gbdk-lib/include/sms/sms.h
14
++++++++++++++

2 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/gbdk-lib/include/gb/gb.h b/gbdk-lib/include/gb/gb.h
@@ -286,7 +286,11 @@ void nowait_int_handler(void) NONBANKED;
 */
 void wait_int_handler(void) NONBANKED;
 
-
+/** Cancel pending interrupts
+ */
+inline uint8_t cancel_pending_interrupts() {
+    return IF_REG = 0;
+}
 
 /** Set the current screen mode - one of M_* modes
 
diff --git a/gbdk-lib/include/sms/sms.h b/gbdk-lib/include/sms/sms.h
@@ -169,10 +169,24 @@ void add_VBL(int_handler h) __z88dk_fastcall __preserves_regs(d, e, iyh, iyl);
 */
 void add_LCD(int_handler h) __z88dk_fastcall __preserves_regs(b, c, iyh, iyl);
 
+/** Does nothing on SMS/GG
+ */
 void add_TIM(int_handler h);
+
+/** Does nothing on SMS/GG
+ */
 void add_SIO(int_handler h);
+
+/** Does nothing on SMS/GG
+ */
 void add_JOY(int_handler h);
 
+/** Cancel pending interrupts
+ */
+inline uint8_t cancel_pending_interrupts() {
+    return VDP_STATUS;
+}
+
 inline void move_bkg(uint8_t x, uint8_t y) {
 	__WRITE_VDP_REG(VDP_RSCX, -x);
 	__WRITE_VDP_REG(VDP_RSCY, y);

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