yabel: Use X86_* instead of the more verbose M.x86.REG_*

Makes it more similar to what realmode looks like.

Change-Id: I4407431f2d979c43dd186114d67ed11845907afe
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/1892
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/mainboard/ibase/mb899/mainboard.c b/src/mainboard/ibase/mb899/mainboard.c
index a6bc70f..4fc7d04 100644
--- a/src/mainboard/ibase/mb899/mainboard.c
+++ b/src/mainboard/ibase/mb899/mainboard.c
@@ -40,17 +40,17 @@
 #define BOOT_DISPLAY_LCD2	(1 << 7)
 
 	printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
-			  __func__, M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, M.x86.R_DX);
+			  __func__, X86_AX, X86_BX, X86_CX, X86_DX);
 
-	switch (M.x86.R_AX) {
+	switch (X86_AX) {
 	case 0x5f35: /* Boot Display */
-		M.x86.R_AX = 0x005f; // Success
-		M.x86.R_CL = BOOT_DISPLAY_DEFAULT;
+		X86_AX = 0x005f; // Success
+		X86_CL = BOOT_DISPLAY_DEFAULT;
 		break;
 	case 0x5f40: /* Boot Panel Type */
 		// M.x86.R_AX = 0x015f; // Supported but failed
-		M.x86.R_AX = 0x005f; // Success
-		M.x86.R_CL = 3; // Display ID
+		X86_AX = 0x005f; // Success
+		X86_CL = 3; // Display ID
 		break;
 	default:
 		/* Interrupt was not handled */
diff --git a/src/mainboard/intel/emeraldlake2/mainboard.c b/src/mainboard/intel/emeraldlake2/mainboard.c
index 28dc92e..f6fe405 100644
--- a/src/mainboard/intel/emeraldlake2/mainboard.c
+++ b/src/mainboard/intel/emeraldlake2/mainboard.c
@@ -144,9 +144,9 @@
 static int int15_handler(void)
 {
 	printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
-			  __func__, M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, M.x86.R_DX);
+			  __func__, X86_AX, X86_BX, X86_CX, X86_DX);
 
-	switch (M.x86.R_AX) {
+	switch (X86_AX) {
 	case 0x5f34:
 		/*
 		 * Set Panel Fitting Hook:
@@ -154,8 +154,8 @@
 		 *  bit 1 = Text Stretching
 		 *  bit 0 = Centering (do not set with bit1 or bit2)
 		 */
-		M.x86.R_AX = 0x005f;
-		M.x86.R_CX = 0x0001;
+		X86_AX = 0x005f;
+		X86_CX = 0x0001;
 		break;
 	case 0x5f35:
 		/*
@@ -169,8 +169,8 @@
 		 *  bit 6 = EFP2 *
 		 *  bit 7 = LFP2
 		 */
-		M.x86.R_AX = 0x005f;
-		M.x86.R_CX = 0x0000;
+		X86_AX = 0x005f;
+		X86_CX = 0x0000;
 		break;
 	case 0x5f51:
 		/*
@@ -180,18 +180,18 @@
 		 *  02h = SVDO-LVDS, LFP driven by SVDO decoder
 		 *  03h = eDP, LFP Driven by Int-DisplayPort encoder
 		 */
-		M.x86.R_AX = 0x005f;
-		M.x86.R_CX = 3;
+		X86_AX = 0x005f;
+		X86_CX = 3;
 		break;
 	case 0x5f70:
 		/* Unknown */
-		M.x86.R_AX = 0x005f;
-		M.x86.R_CX = 0;
+		X86_AX = 0x005f;
+		X86_CX = 0;
 		break;
 	default:
 		/* Interrupt was not handled */
 		printk(BIOS_DEBUG, "Unknown INT15 function: 0x%04x\n",
-			M.x86.R_AX);
+			X86_AX);
 		return 0;
 	}
 
diff --git a/src/mainboard/kontron/986lcd-m/mainboard.c b/src/mainboard/kontron/986lcd-m/mainboard.c
index 600058d..e96cd2e 100644
--- a/src/mainboard/kontron/986lcd-m/mainboard.c
+++ b/src/mainboard/kontron/986lcd-m/mainboard.c
@@ -41,17 +41,17 @@
 #define BOOT_DISPLAY_LCD2	(1 << 7)
 
 	printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
-			  __func__, M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, M.x86.R_DX);
+			  __func__, X86_AX, X86_BX, X86_CX, X86_DX);
 
-	switch (M.x86.R_AX) {
+	switch (X86_AX) {
 	case 0x5f35: /* Boot Display */
-		M.x86.R_AX = 0x005f; // Success
-		M.x86.R_CL = BOOT_DISPLAY_CRT;
+		X86_AX = 0x005f; // Success
+		X86_CL = BOOT_DISPLAY_CRT;
 		break;
 	case 0x5f40: /* Boot Panel Type */
 		// M.x86.R_AX = 0x015f; // Supported but failed
-		M.x86.R_AX = 0x005f; // Success
-		M.x86.R_CL = 3; // Display ID
+		X86_AX = 0x005f; // Success
+		X86_CL = 3; // Display ID
 		break;
 	default:
 		/* Interrupt was not handled */
diff --git a/src/mainboard/roda/rk886ex/mainboard.c b/src/mainboard/roda/rk886ex/mainboard.c
index 6d46edd..b7594c9 100644
--- a/src/mainboard/roda/rk886ex/mainboard.c
+++ b/src/mainboard/roda/rk886ex/mainboard.c
@@ -65,20 +65,20 @@
 #define BOOT_DISPLAY_LCD2	(1 << 7)
 
 	printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
-			  __func__, M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, M.x86.R_DX);
+			  __func__, X86_AX, X86_BX, X86_CX, X86_DX);
 
-	switch (M.x86.R_AX) {
+	switch (X86_AX) {
 	case 0x5f35: /* Boot Display */
-		M.x86.R_AX = 0x005f; // Success
-		M.x86.R_CL = BOOT_DISPLAY_DEFAULT;
+		X86_AX = 0x005f; // Success
+		X86_CL = BOOT_DISPLAY_DEFAULT;
 		break;
 	case 0x5f40: /* Boot Panel Type */
 		/* LCD panel type is SIO GPIO40-43 */
 		// display_id = inb(0x60f) & 0x0f;
 		display_id = 3;
 		// M.x86.R_AX = 0x015f; // Supported but failed
-		M.x86.R_AX = 0x005f; // Success
-		M.x86.R_CL = display_id;
+		X86_AX = 0x005f; // Success
+		X86_CL = display_id;
 		break;
 	default:
 		/* Interrupt was not handled */
diff --git a/src/mainboard/samsung/lumpy/mainboard.c b/src/mainboard/samsung/lumpy/mainboard.c
index a3dc2c0..d111181 100644
--- a/src/mainboard/samsung/lumpy/mainboard.c
+++ b/src/mainboard/samsung/lumpy/mainboard.c
@@ -151,9 +151,9 @@
 static int int15_handler(void)
 {
 	printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
-			  __func__, M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, M.x86.R_DX);
+			  __func__, X86_AX, X86_BX, X86_CX, X86_DX);
 
-	switch (M.x86.R_AX) {
+	switch (X86_AX) {
 	case 0x5f34:
 		/*
 		 * Set Panel Fitting Hook:
@@ -162,8 +162,8 @@
 		 *  bit 0 = Centering (do not set with bit1 or bit2)
 		 *  0     = video bios default
 		 */
-		M.x86.R_AX = 0x005f;
-		M.x86.R_CL = 0x00;
+		X86_AX = 0x005f;
+		X86_CL = 0x00;
 		break;
 	case 0x5f35:
 		/*
@@ -177,8 +177,8 @@
 		 *  bit 6 = EFP2 *
 		 *  bit 7 = LFP2
 		 */
-		M.x86.R_AX = 0x005f;
-		M.x86.R_CX = 0x0000;
+		X86_AX = 0x005f;
+		X86_CX = 0x0000;
 		break;
 	case 0x5f51:
 		/*
@@ -188,40 +188,40 @@
 		 *  02h = SVDO-LVDS, LFP driven by SVDO decoder
 		 *  03h = eDP, LFP Driven by Int-DisplayPort encoder
 		 */
-		M.x86.R_AX = 0x005f;
-		M.x86.R_CX = 1;
+		X86_AX = 0x005f;
+		X86_CX = 1;
 		break;
 	case 0x5f70:
-		switch (M.x86.R_CH) {
+		switch (X86_CH) {
 		case 0:
 			/* Get Mux */
 			printk(BIOS_DEBUG, "Get Mux\n");
-			M.x86.R_AX = 0x005f;
-			M.x86.R_CL = 0;
+			X86_AX = 0x005f;
+			X86_CL = 0;
 			break;
 		case 1:
 			printk(BIOS_DEBUG, "Set Mux\n");
 			/* Set Mux */
-			M.x86.R_AX = 0x005f;
-			M.x86.R_CX = 0;
+			X86_AX = 0x005f;
+			X86_CX = 0;
 			break;
 		case 2:
 			printk(BIOS_DEBUG, "Get SG Mode\n");
 			/* Get SG/Non-SG mode */
-			M.x86.R_AX = 0x005f;
-			M.x86.R_CX = 0;
+			X86_AX = 0x005f;
+			X86_CX = 0;
 			break;
 		default:
 			/* Interrupt was not handled */
 			printk(BIOS_DEBUG, "Unknown INT15 5f70 function: 0x%02x\n",
-				M.x86.R_CH);
+				X86_CH);
 			return 0;
 		}
 		break;
 	default:
 		/* Interrupt was not handled */
 		printk(BIOS_DEBUG, "Unknown INT15 function: 0x%04x\n",
-			M.x86.R_AX);
+			X86_AX);
 		return 0;
 	}
 
diff --git a/src/mainboard/samsung/stumpy/mainboard.c b/src/mainboard/samsung/stumpy/mainboard.c
index b0981fd..a465bb2 100644
--- a/src/mainboard/samsung/stumpy/mainboard.c
+++ b/src/mainboard/samsung/stumpy/mainboard.c
@@ -144,9 +144,9 @@
 static int int15_handler(void)
 {
 	printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
-			  __func__, M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, M.x86.R_DX);
+			  __func__, X86_AX, X86_BX, X86_CX, X86_DX);
 
-	switch (M.x86.R_AX) {
+	switch (X86_AX) {
 	case 0x5f34:
 		/*
 		 * Set Panel Fitting Hook:
@@ -154,8 +154,8 @@
 		 *  bit 1 = Text Stretching
 		 *  bit 0 = Centering (do not set with bit1 or bit2)
 		 */
-		M.x86.R_AX = 0x005f;
-		M.x86.R_CX = 0x0001;
+		X86_AX = 0x005f;
+		X86_CX = 0x0001;
 		break;
 	case 0x5f35:
 		/*
@@ -169,8 +169,8 @@
 		 *  bit 6 = EFP2 *
 		 *  bit 7 = LFP2
 		 */
-		M.x86.R_AX = 0x005f;
-		M.x86.R_CX = 0x0000;
+		X86_AX = 0x005f;
+		X86_CX = 0x0000;
 		break;
 	case 0x5f51:
 		/*
@@ -180,18 +180,18 @@
 		 *  02h = SVDO-LVDS, LFP driven by SVDO decoder
 		 *  03h = eDP, LFP Driven by Int-DisplayPort encoder
 		 */
-		M.x86.R_AX = 0x005f;
-		M.x86.R_CX = 3;
+		X86_AX = 0x005f;
+		X86_CX = 3;
 		break;
 	case 0x5f70:
 		/* Unknown */
-		M.x86.R_AX = 0x005f;
-		M.x86.R_CX = 0;
+		X86_AX = 0x005f;
+		X86_CX = 0;
 		break;
 	default:
 		/* Interrupt was not handled */
 		printk(BIOS_DEBUG, "Unknown INT15 function: 0x%04x\n",
-			M.x86.R_AX);
+			X86_AX);
 		return 0;
 	}
 
diff --git a/src/mainboard/siemens/sitemp_g1p1/mainboard.c b/src/mainboard/siemens/sitemp_g1p1/mainboard.c
index 565ea56..a73fbd6 100644
--- a/src/mainboard/siemens/sitemp_g1p1/mainboard.c
+++ b/src/mainboard/siemens/sitemp_g1p1/mainboard.c
@@ -230,24 +230,24 @@
 #define BOOT_DISPLAY_LCD2	(1 << 7)
 
 	printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
-			  __func__, M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, M.x86.R_DX);
+			  __func__, X86_AX, X86_BX, X86_CX, X86_DX);
 
-	switch (M.x86.R_AX) {
+	switch (X86_AX) {
 	case 0x4e08: /* Boot Display */
-	    switch (M.x86.R_BX) {
+	    switch (X86_BX) {
 		case 0x80:
-			M.x86.R_AX &= ~(0xff); // Success
-			M.x86.R_BX &= ~(0xff);
+			X86_AX &= ~(0xff); // Success
+			X86_BX &= ~(0xff);
 			printk(BIOS_DEBUG, "Integrated System Information\n");
 			break;
 		case 0x00:
-			M.x86.R_AX &= ~(0xff);
-			M.x86.R_BX = 0x00;
+			X86_AX &= ~(0xff);
+			X86_BX = 0x00;
 			printk(BIOS_DEBUG, "Panel ID = 0\n");
 			break;
 		case 0x05:
-			M.x86.R_AX &= ~(0xff);
-			M.x86.R_BX = 0xff;
+			X86_AX &= ~(0xff);
+			X86_BX = 0xff;
 			printk(BIOS_DEBUG, "TV = off\n");
 			break;
 		default:
@@ -255,13 +255,13 @@
 		}
 		break;
 	case 0x5f35: /* Boot Display */
-		M.x86.R_AX = 0x005f; // Success
-		M.x86.R_CL = BOOT_DISPLAY_DEFAULT;
+		X86_AX = 0x005f; // Success
+		X86_CL = BOOT_DISPLAY_DEFAULT;
 		break;
 	case 0x5f40: /* Boot Panel Type */
 		// M.x86.R_AX = 0x015f; // Supported but failed
-		M.x86.R_AX = 0x005f; // Success
-		M.x86.R_CL = 3; // Display ID
+		X86_AX = 0x005f; // Success
+		X86_CL = 3; // Display ID
 		break;
 	default:
 		/* Interrupt was not handled */
diff --git a/src/mainboard/thomson/ip1000/mainboard.c b/src/mainboard/thomson/ip1000/mainboard.c
index 381e1f8..0ae6760 100644
--- a/src/mainboard/thomson/ip1000/mainboard.c
+++ b/src/mainboard/thomson/ip1000/mainboard.c
@@ -100,13 +100,13 @@
 #define BOOT_DISPLAY_LCD2	(1 << 7)
 
 	printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
-			  __func__, M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, M.x86.R_DX);
+			  __func__, X86_AX, X86_BX, X86_CX, X86_DX);
 
-	switch (M.x86.R_AX) {
+	switch (X86_AX) {
 	case 0x5f35: /* Boot Display */
-		M.x86.R_AX = 0x005f; // Success
+		X86_AX = 0x005f; // Success
 		//M.x86.R_CL = BOOT_DISPLAY_TV2;
-		M.x86.R_CL = BOOT_DISPLAY_DEFAULT;
+		X86_CL = BOOT_DISPLAY_DEFAULT;
 		break;
 	case 0x5f36: /* Boot TV Format Hook */
 		printk(BIOS_DEBUG, "Boot TV Format Hook. TODO\n");
diff --git a/src/northbridge/intel/i82830/vga.c b/src/northbridge/intel/i82830/vga.c
index c82c484..1ec7f87 100644
--- a/src/northbridge/intel/i82830/vga.c
+++ b/src/northbridge/intel/i82830/vga.c
@@ -70,12 +70,12 @@
 #define PIPE_B_TV	(1 << 10)
 	printk(BIOS_DEBUG, "Enabling TV-Out\n");
 	void runInt10(void);
-	M.x86.R_AX = 0x5f64;
-	M.x86.R_BX = 0x0001; // Set Display Device, force execution
-	M.x86.R_CX = PIPE_A_CRT | PIPE_A_TV;
+	X86_AX = 0x5f64;
+	X86_BX = 0x0001; // Set Display Device, force execution
+	X86_CX = PIPE_A_CRT | PIPE_A_TV;
 	// M.x86.R_CX = PIPE_B_TV;
 	runInt10();
-	switch (M.x86.R_AX) {
+	switch (X86_AX) {
 	case 0x005f:
 		printk(BIOS_DEBUG, "... failed.\n");
 		break;