git.y1.nz

commit e679322a5351c522a84cd03e17474fabe4c2e2a9
parent 0679a7323e9f66c10a05f693df69677835d99160
Author: Toxa <untoxa@mail.ru>
Date:   Tue, 12 Sep 2023 12:14:27 +0300

GB: improve SIO control register flags definitions

Diffstat:
M
gbdk-lib/include/gb/hardware.h
22
+++++++++++++---------

1 file changed, 13 insertions(+), 9 deletions(-)
diff --git a/gbdk-lib/include/gb/hardware.h b/gbdk-lib/include/gb/hardware.h
@@ -56,6 +56,19 @@ __REG SB_REG;           /**< Serial IO data buffer */
 #define rSB SB_REG
 __REG SC_REG;           /**< Serial IO control register */
 #define rSC SC_REG
+
+#define SIOF_XFER_START     0b10000000 /**< Serial IO: Start Transfer. Automatically cleared at the end of transfer */
+#define SIOF_CLOCK_INT      0b00000001 /**< Serial IO: Use Internal clock */
+#define SIOF_CLOCK_EXT      0b00000000 /**< Serial IO: Use External clock */
+#define SIOF_SPEED_1X       0b00000000 /**< Serial IO: If internal clock then 8KHz mode, 1KB/s (16Khz in CGB high-speed mode, 2KB/s) */
+#define SIOF_SPEED_32X      0b00000010 /**< Serial IO: **CGB-Mode ONLY** If internal clock then 256KHz mode, 32KB/s (512KHz in CGB high-speed mode, 64KB/s) */
+#define SIOF_B_CLOCK        0
+#define SIOF_B_SPEED        1
+#define SIOF_B_XFER_START   7
+#define SCF_START           SIOF_XFER_START
+#define SCF_SOURCE          SIOF_CLOCK_INT
+#define SCF_SPEED           SIOF_SPEED_32X
+
 __REG DIV_REG;          /**< Divider register */
 #define rDIV DIV_REG
 __REG TIMA_REG;         /**< Timer counter */
@@ -72,15 +85,6 @@ __REG TAC_REG;          /**< Timer control */
 #define TACF_65KHZ  0b00000010
 #define TACF_262KHZ 0b00000001
 
-#define SIOF_CLOCK_EXT  0b00000000 /**< Serial IO: Use External clock */
-#define SIOF_CLOCK_INT  0b00000001 /**< Serial IO: Use Internal clock */
-#define SIOF_SPEED_1X   0b00000000 /**< Serial IO: If internal clock then 8KHz mode, 1KB/s (16Khz in CGB high-speed mode, 2KB/s) */
-#define SIOF_SPEED_32X  0b00000010 /**< Serial IO: **CGB-Mode ONLY** If internal clock then 256KHz mode, 32KB/s (512KHz in CGB high-speed mode, 64KB/s) */
-#define SIOF_XFER_START 0b10000000 /**< Serial IO: Start Transfer. Automatically cleared at the end of transfer */
-#define SIOF_B_CLOCK      0
-#define SIOF_B_SPEED      1
-#define SIOF_B_XFER_START 7
-
 __REG IF_REG;           /**< Interrupt flags: 0.0.0.JOY.SIO.TIM.LCD.VBL */
 #define rIF IF_REG
 

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