git.y1.nz

commit c4c174d593a7591b74b1ad1701a6b44843225297
parent d96ef1e82951300f3f5b1821c1458bd00aa8e7f6
Author: Toxa <untoxa@mail.ru>
Date:   Sat, 30 Mar 2024 16:23:31 +0300

SMS/GG/MSX __WRITE_VDP_REG_UNSAFE VDP access macro while interrupts are disabled, for use in the ISR handlers, for instance

Diffstat:
M
gbdk-lib/include/msx/msx.h
1
+
M
gbdk-lib/include/sms/sms.h
1
+

2 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/gbdk-lib/include/msx/msx.h b/gbdk-lib/include/msx/msx.h
@@ -91,6 +91,7 @@
 #define S_PAL(n)     (((n) & 0x01U) << 3)
 
 // VDP helper macros
+#define __WRITE_VDP_REG_UNSAFE(REG, v) shadow_##REG=(v),VDP_CMD=(shadow_##REG),VDP_CMD=REG
 #define __WRITE_VDP_REG(REG, v) shadow_##REG=(v);__asm__("di");VDP_CMD=(shadow_##REG);VDP_CMD=REG;__asm__("ei")
 #define __READ_VDP_REG(REG) shadow_##REG
 
diff --git a/gbdk-lib/include/sms/sms.h b/gbdk-lib/include/sms/sms.h
@@ -98,6 +98,7 @@
 #define S_PAL(n)     (((n) & 0x01U) << 3)
 
 // VDP helper macros
+#define __WRITE_VDP_REG_UNSAFE(REG, v) shadow_##REG=(v),VDP_CMD=(shadow_##REG),VDP_CMD=REG
 #define __WRITE_VDP_REG(REG, v) shadow_##REG=(v);__asm__("di");VDP_CMD=(shadow_##REG);VDP_CMD=REG;__asm__("ei")
 #define __READ_VDP_REG(REG) shadow_##REG
 

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