diff --git a/examples/hucc/sgx/Makefile b/examples/hucc/sgx/Makefile
index cc32fb98..09885e57 100644
--- a/examples/hucc/sgx/Makefile
+++ b/examples/hucc/sgx/Makefile
@@ -1,18 +1,15 @@
-all: sgx_test.iso sgx_test.sgx
+all: sgx_test.sgx sgx_test.iso
 
 include ../Make_ex.inc
 
 SRC = sgx_test.c
 
-CFLAGS ?= -sgx -fno-recursive
-CDFLAGS = -scd -over
+CFLAGS ?= --sgx -fno-recursive -gA
+CDFLAGS = --scd
+LIBS =
 
-sgx_test.sgx: $(SRC)
-	$(CC) $(CFLAGS) $(SRC) $(LIBS)
-	$(MV) sgx_test.pce $@
+sgx_test.iso: $(SRC)
+	$(CC) $(CFLAGS) $(CDFLAGS) $< $(LIBS)
 
-sgx_test.ovl: $(SRC) sgx_test.sgx
-	$(CC) $(CFLAGS) $(CDFLAGS) $(SRC) $(LIBS)
-
-sgx_test.iso: sgx_test.ovl
-	$(IL) $@ -ipl="SuperGRAFX Test" $^
+sgx_test.sgx: $(SRC) sgx_test.iso
+	$(CC) $(CFLAGS) $< $(LIBS)
diff --git a/examples/hucc/shmup/Makefile b/examples/hucc/shmup/Makefile
index 1f5f29ca..e8b7a1a9 100644
--- a/examples/hucc/shmup/Makefile
+++ b/examples/hucc/shmup/Makefile
@@ -2,15 +2,12 @@ all: shmup.sgx shmup.iso
 
 include ../Make_ex.inc
 
-CFLAGS = -msmall -fno-recursive
+CFLAGS = --sgx -fno-recursive -fsigned-char -gC
+CDFLAGS = --scd
 LIBS =
 
-shmup.sgx: shmup.c
-	$(CC) -sgx -fsigned-char $(CFLAGS) $(LIBS) $<
-	$(MV) shmup.pce $@
+shmup.iso: shmup.c
+	$(CC) $(CFLAGS) $(CDFLAGS) $< $(LIBS)
 
-shmup.ovl: shmup.c shmup.sgx
-	$(CC) -sgx -scd -over -fsigned-char $(CFLAGS) $(LIBS) $<
-
-shmup.iso: shmup.ovl
-	$(IL) $@ -ipl="SuperGRAFX SHMUP" $^
+shmup.sgx: shmup.c shmup.iso
+	$(CC) $(CFLAGS) $(LIBS) $<
diff --git a/src/hucc/main.c b/src/hucc/main.c
index 447bf7a9..92a55555 100644
--- a/src/hucc/main.c
+++ b/src/hucc/main.c
@@ -1092,6 +1092,11 @@ int assemble (char *s)
 	strcat_s(buf, sizeof(buf), " ");
 	for (p = buf; (p = strchr(p, '/')) != NULL; *p++ = '\\');
 
+	strcat_s(buf, sizeof(buf), "--hucc ");
+
+	if (sgflag)
+		strcat_s(buf, sizeof(buf), "--sgx ");
+
 	switch (cdflag) {
 	case 1:
 		strcat_s(buf, sizeof(buf), "--cd ");
@@ -1113,8 +1118,6 @@ int assemble (char *s)
 		strcat_s(buf, sizeof(buf), "-S -l 3 -m ");
 	}
 
-	strcat_s(buf, sizeof(buf), "--hucc ");
-
 	if (debug_info) {
 		const char * debug_opt;
 		switch (debug_info) {
@@ -1148,6 +1151,11 @@ int assemble (char *s)
 		exe = "pceas";
 	}
 	opts[i++] = exe;
+	opts[i++] = "--hucc";		/* --newproc --strip -O and more! */
+
+	if (sgflag)
+		opts[i++] = "--sgx";
+
 	switch (cdflag) {
 	case 1:
 		opts[i++] = "--cd";
@@ -1166,6 +1174,7 @@ int assemble (char *s)
 	if (overlayflag)
 		opts[i++] = "--over";	/* compile as overlay */
 
+
 	if (verboseflag) {
 		opts[i++] = "-S";	/* asm: display full segment map */
 		opts[i++] = "-l 3";	/* top listing output */
@@ -1174,8 +1183,6 @@ int assemble (char *s)
 	else
 		opts[i++] = "-l 0";
 
-	opts[i++] = "--hucc";		/* --newproc --strip -O and more! */
-
 	if (debug_info) {
 		switch (debug_info) {
 		case 'C': opts[i++] = "-gC"; break;
diff --git a/src/mkit/as/main.c b/src/mkit/as/main.c
index 22e11830..cb0274c3 100644
--- a/src/mkit/as/main.c
+++ b/src/mkit/as/main.c
@@ -145,6 +145,55 @@ int section_limit[MAX_S] = {
 /* S_OSEG  */	0x0100
 };
 
+/* custom SuperCD boot sector loader code made from "examples/asm/elmer/ipl-scd/" */
+static unsigned char ipl_scd [704] = {
+	0x20,0x5A,0xE0,0xE0,0x03,0x90,0x59,0x20,0xDE,0xE0,0xB0,0x54,0x22,0x29,0x7F,0x22,
+	0xE0,0x03,0x90,0x4C,0xA9,0x68,0x53,0x04,0xA0,0x01,0xB9,0x01,0x36,0x38,0xF9,0x00,
+	0x36,0x85,0xF8,0x64,0xF9,0x43,0x04,0x85,0xFA,0x64,0xFB,0x62,0xCC,0x00,0x37,0x90,
+	0x01,0x1A,0x85,0xFC,0xB9,0x00,0x37,0x85,0xFD,0xB9,0x00,0x36,0x85,0xFE,0xA9,0x06,
+	0x85,0xFF,0x20,0x09,0xE0,0xC9,0x00,0xF0,0x06,0xA9,0x67,0xA2,0x31,0x80,0x1A,0x43,
+	0x04,0x1A,0x53,0x08,0x1A,0x53,0x10,0x1A,0x53,0x20,0x1A,0x53,0x40,0x4C,0x00,0x40,
+	0xAC,0xFF,0x35,0xD0,0xB5,0xA9,0x46,0xA2,0x31,0x48,0xDA,0x20,0x99,0xE0,0x20,0x7B,
+	0xE0,0x20,0x84,0x31,0xA9,0x7D,0x85,0xEC,0xA9,0x32,0x85,0xED,0x20,0xC4,0x31,0x62,
+	0xA2,0x20,0xA0,0x1C,0x20,0x6F,0xE0,0xA9,0x01,0x20,0x69,0xE0,0xA9,0x5D,0x8D,0x20,
+	0x22,0xA9,0x32,0x8D,0x21,0x22,0xA9,0x01,0x8D,0x22,0x22,0x9C,0x23,0x22,0x9C,0x24,
+	0x22,0x9C,0x25,0x22,0xA9,0x02,0x8D,0x1F,0x22,0xFA,0x68,0x20,0x1D,0x32,0x20,0x8A,
+	0xE0,0x20,0x7B,0xE0,0x80,0xFE,0x01,0x0D,0x41,0x42,0x43,0x44,0x45,0x40,0x46,0x47,
+	0x48,0x49,0x4A,0x4B,0x4C,0x40,0x41,0x4D,0x4E,0x4F,0x44,0x50,0x40,0x45,0x44,0x57,
+	0x42,0x58,0x45,0x44,0x52,0x53,0x00,0x03,0x0D,0x46,0x47,0x40,0x44,0x45,0x45,0x54,
+	0x45,0x53,0x40,0x46,0x55,0x51,0x51,0x54,0x4F,0x40,0x45,0x42,0x51,0x40,0x56,0x55,
+	0x50,0x44,0x53,0x00,0x44,0x14,0xA2,0x1C,0xC2,0x13,0x00,0x23,0x00,0x23,0x00,0x23,
+	0x00,0x23,0x00,0x88,0xD0,0xF5,0xCA,0xD0,0xF2,0x60,0xA9,0x05,0x85,0xF7,0x03,0x05,
+	0x23,0x00,0xA9,0x00,0x85,0xF7,0x03,0x00,0x9C,0x02,0x02,0x9C,0x03,0x02,0xA9,0x02,
+	0x85,0xF7,0x03,0x02,0xA2,0x08,0xC2,0x13,0x40,0x23,0x01,0x23,0x01,0x88,0xD0,0xF9,
+	0xCA,0xD0,0xF6,0x60,0xA2,0x14,0xA9,0xFF,0x48,0xA9,0x00,0x85,0xF7,0x03,0x00,0x9C,
+	0x02,0x02,0x8E,0x03,0x02,0xA9,0x02,0x85,0xF7,0x03,0x02,0xA9,0x19,0x85,0xF8,0xC2,
+	0x82,0x9E,0x00,0x21,0xB1,0xEC,0x9D,0x01,0x21,0x0A,0x11,0xEC,0x9D,0x02,0x21,0x1D,
+	0x00,0x21,0x5D,0x01,0x21,0x9D,0x00,0x21,0xC8,0xD0,0x02,0xE6,0xED,0xE8,0xE8,0xE0,
+	0x10,0xD0,0xE1,0xE3,0x00,0x21,0x02,0x02,0x10,0x00,0x68,0xA2,0x08,0x8D,0x02,0x02,
+	0x8D,0x03,0x02,0xCA,0xD0,0xFA,0x48,0xC6,0xF8,0xD0,0xC5,0x68,0x60,0x85,0xF8,0x86,
+	0xF9,0xA0,0x01,0xB1,0xF8,0x4A,0xAA,0x62,0x6A,0x22,0x4A,0x22,0x6A,0x12,0xF8,0xC8,
+	0x08,0x78,0x03,0x01,0x8D,0x02,0x02,0x8E,0x03,0x02,0x03,0x00,0x8D,0x02,0x02,0x8E,
+	0x03,0x02,0x03,0x02,0xA9,0x02,0x85,0xF7,0x28,0xB1,0xF8,0xF0,0x0F,0xC8,0x18,0x69,
+	0x00,0x8D,0x02,0x02,0x62,0x69,0x01,0x8D,0x03,0x02,0x80,0xED,0x60,0x00,0x00,0x00,
+	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+	0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x4C,0x00,0x69,0x01,0xB2,0x01,0x00,0x00,0x00,
+	0x00,0x00,0x00,0x00,0x00,0x3C,0x66,0x60,0x3C,0x06,0x66,0x3C,0x00,0x00,0x00,0x66,
+	0x66,0x66,0x66,0x3E,0x00,0x00,0x00,0x7C,0x66,0x66,0x7C,0x60,0x60,0x00,0x00,0x3C,
+	0x66,0x7E,0x60,0x3C,0x00,0x00,0x00,0x3C,0x66,0x60,0x60,0x60,0x00,0x3C,0x66,0x60,
+	0x60,0x60,0x66,0x3C,0x00,0x7C,0x66,0x66,0x66,0x66,0x66,0x7C,0x00,0x00,0x00,0x00,
+	0x7E,0x00,0x00,0x00,0x00,0x7C,0x66,0x66,0x7C,0x78,0x6C,0x66,0x00,0x3C,0x66,0x66,
+	0x66,0x66,0x66,0x3C,0x00,0x63,0x77,0x7F,0x6B,0x6B,0x63,0x63,0x00,0x3E,0x03,0x1E,
+	0x30,0x3F,0x00,0x00,0x00,0x00,0x00,0x66,0x66,0x66,0x3E,0x06,0x3C,0x00,0x00,0x3E,
+	0x60,0x3C,0x06,0x7C,0x00,0x00,0x18,0x7E,0x18,0x18,0x18,0x0E,0x00,0x00,0x00,0x36,
+	0x7F,0x6B,0x6B,0x63,0x00,0x00,0x00,0x3C,0x66,0x66,0x66,0x66,0x00,0x06,0x06,0x3E,
+	0x66,0x66,0x66,0x3E,0x00,0x18,0x3C,0x3C,0x18,0x18,0x00,0x18,0x00,0x00,0x00,0x3C,
+	0x66,0x66,0x66,0x3C,0x00,0x00,0x00,0x3C,0x06,0x3E,0x66,0x3E,0x00,0x00,0x00,0x3E,
+	0x66,0x66,0x3E,0x06,0x3C,0x00,0x00,0x3E,0x66,0x66,0x3E,0x07,0x06,0x18,0x00,0x38,
+	0x18,0x18,0x18,0x3C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
+};
+
+
 /* ----
  * atexit callback
  * ----
@@ -155,6 +204,7 @@ cleanup(void)
 	cleanup_path();
 }
 
+
 /* ----
  * prepare_ipl()
  * ----
@@ -935,33 +985,68 @@ main(int argc, char **argv)
 				/* initialize the ipl */
 				prepare_ipl(ipl_buffer);
 
-				/* prg sector base */
-				ipl_buffer[0x802] = 2;
+				/* Use the built-in IPL-SCD loader? */
+				if (scd_opt && (hucc_opt || newproc_opt)) {
+					/* IPL-SCD loader code from the asm example project */
+					memcpy(ipl_buffer + 0x890, ipl_scd, sizeof(ipl_scd));
+
+					/* prg sector base */
+					ipl_buffer[0x802] = 0;
+
+					/* nb_sectors */
+					ipl_buffer[0x803] = 0;
 
-				/* nb sectors */
-				if (lablexists("HUC")) {
-					ipl_buffer[0x803] = 16; /* 4 banks */
+					/* loading address */
+					ipl_buffer[0x804] = 0;
+					ipl_buffer[0x805] = 0;
+
+					/* starting address */
+					ipl_buffer[0x806] = 0x3090 & 255;
+					ipl_buffer[0x807] = 0;
+
+					/* mpr registers */
+					ipl_buffer[0x808] = 0;
+					ipl_buffer[0x809] = 1;
+					ipl_buffer[0x80A] = 2;
+					ipl_buffer[0x80B] = 3;
+					ipl_buffer[0x80C] = 4;
+
+					/* load mode */
+					ipl_buffer[0x80D] = 0;
 				} else {
-					ipl_buffer[0x803] = (max_bank + 1) * 8192 / 2048;
-				}
+					/* prg sector base */
+					ipl_buffer[0x802] = 2;
+
+					/* nb sectors */
+					if (lablexists("HUCC") || !lablexists("HUC")) {
+						/* If it's not HuC, load the whole program */
+						ipl_buffer[0x803] = (max_bank + 1) * 8192 / 2048;
+					} else {
+						/* HuC boots segments up to and including the */
+						/* overlay array. The boot segments will load */
+						/* the remaining sectors and relocate code to */
+						/* SCD RAM if necessary */
+						ipl_buffer[0x803] = 16; /* 4 banks */
+					}
 
-				/* loading address */
-				ipl_buffer[0x804] = 0x00;
-				ipl_buffer[0x805] = 0x40;
+					/* loading address */
+					ipl_buffer[0x804] = 0x00;
+					ipl_buffer[0x805] = 0x40;
 
-				/* starting address */
-				ipl_buffer[0x806] = BOOT_ENTRY_POINT & 0xFF;
-				ipl_buffer[0x807] = (BOOT_ENTRY_POINT >> 8) & 0xFF;
+					/* starting address */
+					ipl_buffer[0x806] = BOOT_ENTRY_POINT & 0xFF;
+					ipl_buffer[0x807] = (BOOT_ENTRY_POINT >> 8) & 0xFF;
 
-				/* mpr registers */
-				ipl_buffer[0x808] = 0x00;
-				ipl_buffer[0x809] = 0x01;
-				ipl_buffer[0x80A] = 0x02;
-				ipl_buffer[0x80B] = 0x03;
-				ipl_buffer[0x80C] = 0x04;
+					/* mpr registers */
+					ipl_buffer[0x808] = 0x00;
+					ipl_buffer[0x809] = 0x01;
+					ipl_buffer[0x80A] = 0x02;
+					ipl_buffer[0x80B] = 0x03;
+					ipl_buffer[0x80C] = 0x04;
 
-				/* load mode */
-				ipl_buffer[0x80D] = 0x60;
+					/* load mode */
+					ipl_buffer[0x80D] = 0x60;
+				}
 
 				/* add a SuperGRAFX signature to the IPL Information Block */
 				if (sgx_opt)