git.y1.nz

commit e80a7cbb1909fe02f0acc2df053d7ee25a35f1b7
parent ef29520b710be20c2b4d4c8eec8c983d2c5dc8ce
Author: Toxa <untoxa@mail.ru>
Date:   Mon, 26 Jul 2021 00:16:32 +0300

bit number constants for LCDC and STAT

Diffstat:
M
gbdk-lib/include/gb/hardware.h
16
++++++++++++++++
M
gbdk-lib/libc/gb/global.s
16
++++++++++++++++

2 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/gbdk-lib/include/gb/hardware.h b/gbdk-lib/include/gb/hardware.h
@@ -168,6 +168,14 @@ __REG LCDC_REG;         /** LCD control */
 #define LCDCF_OBJON   0b00000010u
 #define LCDCF_BGOFF   0b00000000u
 #define LCDCF_BGON    0b00000001u
+#define LCDCF_B_ON      7
+#define LCDCF_B_WIN9C00 6
+#define LCDCF_B_WINON   5
+#define LCDCF_B_BG8000  4
+#define LCDCF_B_BG9C00  3
+#define LCDCF_B_OBJ16   2
+#define LCDCF_B_OBJON   1
+#define LCDCF_B_BGON    0
 
 __REG STAT_REG;         /** LCD status */
 #define rSTAT STAT_REG
@@ -182,6 +190,14 @@ __REG STAT_REG;         /** LCD status */
 #define STATF_OAM     0b00000010u
 #define STATF_LCD     0b00000011u
 #define STATF_BUSY    0b00000010u
+#define STATF_B_LYC     6
+#define STATF_B_MODE10  5
+#define STATF_B_MODE01  4
+#define STATF_B_MODE00  3
+#define STATF_B_LYCF    2
+#define STATF_B_VBL     0
+#define STATF_B_OAM     1
+#define STATF_B_BUSY    1
 
 __REG SCY_REG;          /** Scroll Y */
 #define rSCY
diff --git a/gbdk-lib/libc/gb/global.s b/gbdk-lib/libc/gb/global.s
@@ -215,6 +215,14 @@
         LCDCF_OBJON     = 0b00000010 ; OBJ Display
         LCDCF_BGOFF     = 0b00000000 ; BG Display
         LCDCF_BGON      = 0b00000001 ; BG Display
+        LCDCF_B_ON      = 7
+        LCDCF_B_WIN9C00 = 6
+        LCDCF_B_WINON   = 5
+        LCDCF_B_BG8000  = 4
+        LCDCF_B_BG9C00  = 3
+        LCDCF_B_OBJ16   = 2
+        LCDCF_B_OBJON   = 1
+        LCDCF_B_BGON    = 0
 
         .STAT           = 0x41  ; LCD status
         rSTAT           = 0xFF41
@@ -229,6 +237,14 @@
         STATF_OAM       = 0b00000010 ; OAM-RAM is used by system
         STATF_LCD       = 0b00000011 ; Both OAM and VRAM used by system
         STATF_BUSY      = 0b00000010 ; When set, VRAM access is unsafe
+        STATF_B_LYC     = 6
+        STATF_B_MODE10  = 5
+        STATF_B_MODE01  = 4
+        STATF_B_MODE00  = 3
+        STATF_LYCF      = 2
+        STATF_B_VBL     = 0
+        STATF_B_OAM     = 1
+        STATF_B_BUSY    = 1
 
         .SCY            = 0x42  ; Scroll Y
         rSCY            = 0xFF42

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