Move test units to z80/tests, and drivers are now statically linked

Makefiles for the test units were getting messier, so now drivers
(that need to be tested) are statically compiled in their own
folder under z80/drivers.

The kernel makefile and is now broken since everything has been moved.

26 files changed, 411 insertions, 151 deletions

diff --git a/sw/z80_tests/usart/build/crt0.rel b/sw/z80/tests/pio/build/crt0.rel
index 809c0e6..809c0e6 100644
--- a/sw/z80_tests/usart/build/crt0.rel
+++ b/sw/z80/tests/pio/build/crt0.rel
diff --git a/sw/z80_tests/usart/build/main.asm b/sw/z80/tests/pio/build/main.asm
index 44f199a..453eead 100644
--- a/sw/z80_tests/usart/build/main.asm
+++ b/sw/z80/tests/pio/build/main.asm
@@ -9,8 +9,8 @@
 ; Public variables in this module
 ;--------------------------------------------------------
 	.globl _main
-	.globl _usart_write
-	.globl _usart_init
+	.globl _pio_write
+	.globl _pio_set_mode
 ;--------------------------------------------------------
 ; special function registers
 ;--------------------------------------------------------
@@ -47,44 +47,34 @@
 ; Function main
 ; ---------------------------------
 _main::
-;main.c:5: usart_init(USART_BAUDRATE_1200, USART_PARITY_EVEN, USART_STOP_BITS_1);
-	ld	hl,#0x000a
+;main.c:7: pio_set_mode(PIO_A, PIO_MODE_BYTE_OUT, 0);
+	xor	a, a
+	push	af
+	inc	sp
+	ld	hl,#0x0001
 	push	hl
-	ld	l, #0x01
+	ld	l, #0x00
 	push	hl
-	ld	l, #0x60
-	push	hl
-	call	_usart_init
-	ld	hl,#6
-	add	hl,sp
-	ld	sp,hl
-;main.c:6: usart_write("Hello, World!\n", 13);
-	ld	hl,#0x000d
-	push	hl
-	ld	hl,#___str_0
-	push	hl
-	call	_usart_write
+	call	_pio_set_mode
 	pop	af
 	pop	af
-;main.c:8: while(1) {
+	inc	sp
+;main.c:9: while (1) {
+	ld	c,#0x00
 00102$:
-;main.c:9: usart_write("done\n", 5);
-	ld	hl,#0x0005
+;main.c:10: pio_write(PIO_A, j++);
+	ld	b,c
+	inc	c
+	push	bc
+	push	bc
+	inc	sp
+	ld	hl,#0x0000
 	push	hl
-	ld	hl,#___str_1
-	push	hl
-	call	_usart_write
-	pop	af
+	call	_pio_write
 	pop	af
+	inc	sp
+	pop	bc
 	jr	00102$
-___str_0:
-	.ascii "Hello, World!"
-	.db 0x0a
-	.db 0x00
-___str_1:
-	.ascii "done"
-	.db 0x0a
-	.db 0x00
 	.area _CODE
 	.area _INITIALIZER
 	.area _CABS (ABS)
diff --git a/sw/z80_tests/usart/build/main.lst b/sw/z80/tests/pio/build/main.lst
index c7b4201..4a1a872 100644
--- a/sw/z80_tests/usart/build/main.lst
+++ b/sw/z80/tests/pio/build/main.lst
@@ -9,8 +9,8 @@
                               9 ; Public variables in this module
                              10 ;--------------------------------------------------------
                              11 	.globl _main
-                             12 	.globl _usart_write
-                             13 	.globl _usart_init
+                             12 	.globl _pio_write
+                             13 	.globl _pio_set_mode
                              14 ;--------------------------------------------------------
                              15 ; special function registers
                              16 ;--------------------------------------------------------
@@ -47,46 +47,34 @@
                              47 ; Function main
                              48 ; ---------------------------------
    0000                      49 _main::
-                             50 ;main.c:5: usart_init(USART_BAUDRATE_1200, USART_PARITY_EVEN, USART_STOP_BITS_1);
-   0000 21 0A 00      [10]   51 	ld	hl,#0x000a
-   0003 E5            [11]   52 	push	hl
-   0004 2E 01         [ 7]   53 	ld	l, #0x01
-   0006 E5            [11]   54 	push	hl
-   0007 2E 60         [ 7]   55 	ld	l, #0x60
-   0009 E5            [11]   56 	push	hl
-   000A CDr00r00      [17]   57 	call	_usart_init
-   000D 21 06 00      [10]   58 	ld	hl,#6
-   0010 39            [11]   59 	add	hl,sp
-   0011 F9            [ 6]   60 	ld	sp,hl
-                             61 ;main.c:6: usart_write("Hello, World!\n", 13);
-   0012 21 0D 00      [10]   62 	ld	hl,#0x000d
-   0015 E5            [11]   63 	push	hl
-   0016 21r2Er00      [10]   64 	ld	hl,#___str_0
-   0019 E5            [11]   65 	push	hl
-   001A CDr00r00      [17]   66 	call	_usart_write
-   001D F1            [10]   67 	pop	af
-   001E F1            [10]   68 	pop	af
-                             69 ;main.c:8: while(1) {
-   001F                      70 00102$:
-                             71 ;main.c:9: usart_write("done\n", 5);
-   001F 21 05 00      [10]   72 	ld	hl,#0x0005
-   0022 E5            [11]   73 	push	hl
-   0023 21r3Dr00      [10]   74 	ld	hl,#___str_1
-   0026 E5            [11]   75 	push	hl
-   0027 CDr00r00      [17]   76 	call	_usart_write
-   002A F1            [10]   77 	pop	af
-   002B F1            [10]   78 	pop	af
-   002C 18 F1         [12]   79 	jr	00102$
-   002E                      80 ___str_0:
-   002E 48 65 6C 6C 6F 2C    81 	.ascii "Hello, World!"
-        20 57 6F 72 6C 64
-        21
-   003B 0A                   82 	.db 0x0a
-   003C 00                   83 	.db 0x00
-   003D                      84 ___str_1:
-   003D 64 6F 6E 65          85 	.ascii "done"
-   0041 0A                   86 	.db 0x0a
-   0042 00                   87 	.db 0x00
-                             88 	.area _CODE
-                             89 	.area _INITIALIZER
-                             90 	.area _CABS (ABS)
+                             50 ;main.c:7: pio_set_mode(PIO_A, PIO_MODE_BYTE_OUT, 0);
+   0000 AF            [ 4]   51 	xor	a, a
+   0001 F5            [11]   52 	push	af
+   0002 33            [ 6]   53 	inc	sp
+   0003 21 01 00      [10]   54 	ld	hl,#0x0001
+   0006 E5            [11]   55 	push	hl
+   0007 2E 00         [ 7]   56 	ld	l, #0x00
+   0009 E5            [11]   57 	push	hl
+   000A CDr00r00      [17]   58 	call	_pio_set_mode
+   000D F1            [10]   59 	pop	af
+   000E F1            [10]   60 	pop	af
+   000F 33            [ 6]   61 	inc	sp
+                             62 ;main.c:9: while (1) {
+   0010 0E 00         [ 7]   63 	ld	c,#0x00
+   0012                      64 00102$:
+                             65 ;main.c:10: pio_write(PIO_A, j++);
+   0012 41            [ 4]   66 	ld	b,c
+   0013 0C            [ 4]   67 	inc	c
+   0014 C5            [11]   68 	push	bc
+   0015 C5            [11]   69 	push	bc
+   0016 33            [ 6]   70 	inc	sp
+   0017 21 00 00      [10]   71 	ld	hl,#0x0000
+   001A E5            [11]   72 	push	hl
+   001B CDr00r00      [17]   73 	call	_pio_write
+   001E F1            [10]   74 	pop	af
+   001F 33            [ 6]   75 	inc	sp
+   0020 C1            [10]   76 	pop	bc
+   0021 18 EF         [12]   77 	jr	00102$
+                             78 	.area _CODE
+                             79 	.area _INITIALIZER
+                             80 	.area _CABS (ABS)
diff --git a/sw/z80/tests/pio/build/main.rel b/sw/z80/tests/pio/build/main.rel
new file mode 100644
index 0000000..bc2bd98
--- /dev/null
+++ b/sw/z80/tests/pio/build/main.rel
@@ -0,0 +1,29 @@
+XL2
+H 9 areas 4 global symbols
+M main
+O -mz80
+S _pio_set_mode Ref0000
+S .__.ABS. Def0000
+S _pio_write Ref0000
+A _CODE size 23 flags 0 addr 0
+S _main Def0000
+A _DATA size 0 flags 0 addr 0
+A _INITIALIZED size 0 flags 0 addr 0
+A _DABS size 0 flags 8 addr 0
+A _HOME size 0 flags 0 addr 0
+A _GSINIT size 0 flags 0 addr 0
+A _GSFINAL size 0 flags 0 addr 0
+A _INITIALIZER size 0 flags 0 addr 0
+A _CABS size 0 flags 8 addr 0
+T 00 00
+R 00 00 00 00
+T 00 00 AF F5 33 21 01 00 E5 2E 00 E5 CD 00 00 F1
+R 00 00 00 00 02 0D 00 00
+T 0E 00 F1 33 0E 00
+R 00 00 00 00
+T 12 00
+R 00 00 00 00
+T 12 00 41 0C C5 C5 33 21 00 00 E5 CD 00 00 F1 33
+R 00 00 00 00 02 0C 02 00
+T 20 00 C1 18 EF
+R 00 00 00 00
diff --git a/sw/z80_tests/usart/build/main.sym b/sw/z80/tests/pio/build/main.sym
index df02e0d..08d28a3 100644
--- a/sw/z80_tests/usart/build/main.sym
+++ b/sw/z80/tests/pio/build/main.sym
@@ -7,18 +7,17 @@ Symbol Table
     .__.ABS.                                                    =  0000 G
     .__.CPU.                                                    =  0000 L
     .__.H$L.                                                    =  0000 L
-  0 ___str_0                                                       002E R
-  0 ___str_1                                                       003D R
   0 _main                                                          0000 GR
-    _usart_init                                                    **** GX
-    _usart_write                                                   **** GX
+    _pio_set_mode                                                  **** GX
+    _pio_write                                                     **** GX
+
 
 ASxxxx Assembler V02.00 + NoICE + SDCC mods  (Zilog Z80 / Hitachi HD64180), page 2.
 Hexadecimal [16-Bits]
 
 Area Table
 
-   0 _CODE                                      size   43   flags    0
+   0 _CODE                                      size   23   flags    0
    1 _DATA                                      size    0   flags    0
    2 _INITIALIZED                               size    0   flags    0
    3 _DABS                                      size    0   flags    8
diff --git a/sw/z80_tests/usart/build/sample.lk b/sw/z80/tests/pio/build/pio_test.lk
index dc99ff1..20c32cc 100644
--- a/sw/z80_tests/usart/build/sample.lk
+++ b/sw/z80/tests/pio/build/pio_test.lk
@@ -1,12 +1,13 @@
 -mjwx
--i build/sample.hex
+-i build/pio_test.hex
 -b _CODE = 0x0800
 -b _DATA = 0x2000
+-k ../../drivers/build/
 -k /usr/libexec/../share/sdcc/lib/z80
 -k /usr/share/sdcc/lib/z80
+-l drivers.a
 -l z80
 build/crt0.rel
 build/main.rel
-build/usart.rel
 
 -e
diff --git a/sw/z80_tests/usart/build/sample.map b/sw/z80/tests/pio/build/pio_test.map
index e812f09..e91ef69 100644
--- a/sw/z80_tests/usart/build/sample.map
+++ b/sw/z80/tests/pio/build/pio_test.map
@@ -7,7 +7,7 @@ Area                                    Addr        Size        Decimal Bytes (A
 
       Value  Global                              Global Defined In Module
       -----  --------------------------------   ------------------------
-     00000000  .__.ABS.                           usart
+     00000000  .__.ABS.                           pio
      00000000  l__BSEG                         
      00000000  l__BSS                          
      00000000  l__CABS                         
@@ -36,44 +36,41 @@ Area                                    Addr        Size        Decimal Bytes (A
      00000002  l__HEADER5                      
      00000002  l__HEADER6                      
      00000002  l__HEADER7                      
-     00000002  l__INITIALIZED                  
-     00000002  l__INITIALIZER                  
      00000003  l__HEADER0                      
+     00000004  l__INITIALIZED                  
+     00000004  l__INITIALIZER                  
      00000006  l__GSINIT                       
      0000000C  l__HEADER8                      
-     00000264  l__CODE                         
+     000000FD  l__CODE                         
      00000800  s__CODE                         
-     00000A64  s__HOME                         
-     00000A64  s__INITIALIZER                  
-     00000A66  s__GSINIT                       
-     00000A6C  s__GSFINAL                      
+     000008FD  s__HOME                         
+     000008FD  s__INITIALIZER                  
+     00000901  s__GSINIT                       
+     00000907  s__GSFINAL                      
      00002000  s__DATA                         
      00002000  s__INITIALIZED                  
-     00002002  s__BSEG                         
-     00002002  s__BSS                          
-     00002002  s__HEAP                         
+     00002004  s__BSEG                         
+     00002004  s__BSS                          
+     00002004  s__HEAP                         
 ASxxxx Linker V03.00 + NoICE + sdld,  page 2.
 Hexadecimal  [32-Bits]
 
 Area                                    Addr        Size        Decimal Bytes (Attributes)
 --------------------------------        ----        ----        ------- ----- ------------
-_CODE                               00000800    00000264 =         612. bytes (REL,CON)
+_CODE                               00000800    000000FD =         253. bytes (REL,CON)
 
       Value  Global                              Global Defined In Module
       -----  --------------------------------   ------------------------
      00000800  __clock                            crt0
      00000804  _exit                              crt0
      0000080A  _main                              main
-     0000084D  _usart_set_baudrate                usart
-     00000881  _usart_set_parity                  usart
-     000008D5  _usart_set_stop_bits               usart
-     00000902  _usart_word_length                 usart
-     0000091B  _usart_set_autoflow                usart
-     00000955  _usart_init                        usart
-     0000097E  _usart_transmit                    usart
-     00000999  _usart_receive                     usart
-     0000099E  _usart_write                       usart
-     000009E5  _usart_read                        usart
+     0000082D  __pio_data                         pio
+     00000847  __pio_control                      pio
+     00000861  _pio_set_mode                      pio
+     0000089D  _pio_set_interrupts                pio
+     000008B0  _pio_set_interrupts_mask           pio
+     000008D7  _pio_read                          pio
+     000008ED  _pio_write                         pio
 
 ASxxxx Linker V03.00 + NoICE + sdld,  page 3.
 Hexadecimal  [32-Bits]
@@ -161,7 +158,7 @@ Hexadecimal  [32-Bits]
 
 Area                                    Addr        Size        Decimal Bytes (Attributes)
 --------------------------------        ----        ----        ------- ----- ------------
-_INITIALIZER                        00000A64    00000002 =           2. bytes (REL,CON)
+_INITIALIZER                        000008FD    00000004 =           4. bytes (REL,CON)
 
       Value  Global                              Global Defined In Module
       -----  --------------------------------   ------------------------
@@ -170,18 +167,18 @@ Hexadecimal  [32-Bits]
 
 Area                                    Addr        Size        Decimal Bytes (Attributes)
 --------------------------------        ----        ----        ------- ----- ------------
-_GSINIT                             00000A66    00000006 =           6. bytes (REL,CON)
+_GSINIT                             00000901    00000006 =           6. bytes (REL,CON)
 
       Value  Global                              Global Defined In Module
       -----  --------------------------------   ------------------------
-     00000A66  gsinit                             crt0
+     00000901  gsinit                             crt0
 
 ASxxxx Linker V03.00 + NoICE + sdld,  page 14.
 Hexadecimal  [32-Bits]
 
 Area                                    Addr        Size        Decimal Bytes (Attributes)
 --------------------------------        ----        ----        ------- ----- ------------
-_GSFINAL                            00000A6C    00000001 =           1. bytes (REL,CON)
+_GSFINAL                            00000907    00000001 =           1. bytes (REL,CON)
 
       Value  Global                              Global Defined In Module
       -----  --------------------------------   ------------------------
@@ -190,7 +187,7 @@ Hexadecimal  [32-Bits]
 
 Area                                    Addr        Size        Decimal Bytes (Attributes)
 --------------------------------        ----        ----        ------- ----- ------------
-_INITIALIZED                        00002000    00000002 =           2. bytes (REL,CON)
+_INITIALIZED                        00002000    00000004 =           4. bytes (REL,CON)
 
       Value  Global                              Global Defined In Module
       -----  --------------------------------   ------------------------
@@ -200,7 +197,11 @@ Files Linked                              [ module(s) ]
 
 build/crt0.rel                            [ crt0 ]
 build/main.rel                            [ main ]
-build/usart.rel                           [ usart ]
+
+
+Libraries Linked                          [ object file ]
+
+../../drivers/build/drivers.a             [ pio.rel ]
 
 ASxxxx Linker V03.00 + NoICE + sdld,  page 17.
 
diff --git a/sw/z80_tests/usart/build/sample.noi b/sw/z80/tests/pio/build/pio_test.noi
index 6d97288..3ddefe7 100644
--- a/sw/z80_tests/usart/build/sample.noi
+++ b/sw/z80/tests/pio/build/pio_test.noi
@@ -27,34 +27,31 @@ DEF l__HEADER4 0x2
 DEF l__HEADER5 0x2
 DEF l__HEADER6 0x2
 DEF l__HEADER7 0x2
-DEF l__INITIALIZED 0x2
-DEF l__INITIALIZER 0x2
 DEF l__HEADER0 0x3
+DEF l__INITIALIZED 0x4
+DEF l__INITIALIZER 0x4
 DEF l__GSINIT 0x6
 DEF l__HEADER8 0xC
-DEF l__CODE 0x264
+DEF l__CODE 0xFD
 DEF s__CODE 0x800
-DEF s__HOME 0xA64
-DEF s__INITIALIZER 0xA64
-DEF s__GSINIT 0xA66
-DEF s__GSFINAL 0xA6C
+DEF s__HOME 0x8FD
+DEF s__INITIALIZER 0x8FD
+DEF s__GSINIT 0x901
+DEF s__GSFINAL 0x907
 DEF s__DATA 0x2000
 DEF s__INITIALIZED 0x2000
-DEF s__BSEG 0x2002
-DEF s__BSS 0x2002
-DEF s__HEAP 0x2002
+DEF s__BSEG 0x2004
+DEF s__BSS 0x2004
+DEF s__HEAP 0x2004
 DEF __clock 0x800
 DEF _exit 0x804
 DEF _main 0x80A
-DEF _usart_set_baudrate 0x84D
-DEF _usart_set_parity 0x881
-DEF _usart_set_stop_bits 0x8D5
-DEF _usart_word_length 0x902
-DEF _usart_set_autoflow 0x91B
-DEF _usart_init 0x955
-DEF _usart_transmit 0x97E
-DEF _usart_receive 0x999
-DEF _usart_write 0x99E
-DEF _usart_read 0x9E5
-DEF gsinit 0xA66
-LOAD build/sample.ihx
+DEF __pio_data 0x82D
+DEF __pio_control 0x847
+DEF _pio_set_mode 0x861
+DEF _pio_set_interrupts 0x89D
+DEF _pio_set_interrupts_mask 0x8B0
+DEF _pio_read 0x8D7
+DEF _pio_write 0x8ED
+DEF gsinit 0x901
+LOAD build/pio_test.ihx
diff --git a/sw/z80_tests/usart/crt0.s b/sw/z80/tests/pio/crt0.s
index c272f06..c272f06 100644
--- a/sw/z80_tests/usart/crt0.s
+++ b/sw/z80/tests/pio/crt0.s
diff --git a/sw/z80/tests/pio/main.c b/sw/z80/tests/pio/main.c
new file mode 100644
index 0000000..4b0bcdb
--- /dev/null
+++ b/sw/z80/tests/pio/main.c
@@ -0,0 +1,12 @@
+#include "pio.h"
+
+void main(void)
+{
+    uint8_t j = 0;
+
+    pio_set_mode(PIO_A, PIO_MODE_BYTE_OUT, 0);
+
+    while (1) {
+        pio_write(PIO_A, j++);
+    }
+}
diff --git a/sw/z80_tests/usart/makefile b/sw/z80/tests/pio/makefile
index 080f41c..bd9d5bf 100644
--- a/sw/z80_tests/usart/makefile
+++ b/sw/z80/tests/pio/makefile
@@ -1,13 +1,13 @@
 ####
 # source code settings
 #
-OSNAME := sample
+NAME := pio_test
  
-CSOURCES 	:=  $(wildcard *.c)
+CSOURCES 	:= $(wildcard *.c)
 
 OBJECTS 	:= $(patsubst %.c,build/%.rel,$(CSOURCES))
-HEXFILE		:= build/$(OSNAME).hex
-BINARY  	:= build/$(OSNAME).bin
+HEXFILE		:= build/$(NAME).hex
+BINARY  	:= build/$(NAME).bin
 
 ### 
 # compiler settings
@@ -15,12 +15,18 @@ BINARY  	:= build/$(OSNAME).bin
 CC 		:= sdcc
 
 CFLAGS	:= -mz80 \
+			-pedantic \
 			-I . \
+			-I ../../arch \
+			-I ../../drivers/include \
 			-DDEBUG
 
-LDFLAGS := -mz80 --no-std-crt0 build/crt0.rel \
-			--std-c89 -pedantic \
-			--code-loc 0x0800 --data-loc 0x2000
+LDFLAGS := -mz80 \
+			-L ../../drivers/build/ \
+			-l drivers.a \
+			--no-std-crt0 build/crt0.rel \
+			--code-loc 0x0800 \
+			--data-loc 0x2000
 
 .PHONY: dirs dis clean
 all: $(BINARY)
@@ -28,8 +34,6 @@ all: $(BINARY)
 # build binary
 $(BINARY): $(OBJECTS) dirs
 	$(CC) $(LDFLAGS) $(OBJECTS) -o $(HEXFILE)
-	@# xxd -r -p $(HEXFILE) $(BINARY)
-	@# makebin -s 16384 $(HEXFILE) $(BINARY)
 	makebin -s 8192 $(HEXFILE) $(BINARY)
 
 $(OBJECTS): build/%.rel : %.c $(CSOURCES) dirs build/crt0.rel
diff --git a/sw/z80_tests/ram/build/crt0.rel b/sw/z80/tests/ram/build/crt0.rel
index cce6a25..b9ed132 100644
--- a/sw/z80_tests/ram/build/crt0.rel
+++ b/sw/z80/tests/ram/build/crt0.rel
@@ -1,5 +1,5 @@
 XL2
-H 14 areas 3 global symbols
+H 15 areas 3 global symbols
 M crt0
 S _main Ref0000
 S .__.ABS. Def0000
@@ -14,7 +14,8 @@ A _HEADER4 size 2 flags 8 addr 20
 A _HEADER5 size 2 flags 8 addr 28
 A _HEADER6 size 2 flags 8 addr 30
 A _HEADER7 size 2 flags 8 addr 38
-A _HEADER8 size 9 flags 8 addr 100
+A _HEADER8 size 2 flags 8 addr 66
+A _HEADER9 size 9 flags 8 addr 100
 A _HOME size 0 flags 0 addr 0
 A _INITIALIZER size 0 flags 0 addr 0
 A _GSINIT size 0 flags 0 addr 0
@@ -27,7 +28,7 @@ A _HEAP size 0 flags 0 addr 0
 T 00 00
 R 00 00 02 00
 T 00 00 C3 00 01
-R 00 00 02 00 00 03 0A 00
+R 00 00 02 00 00 03 0B 00
 T 08 00
 R 00 00 03 00
 T 08 00 ED 4D
@@ -56,12 +57,16 @@ T 38 00
 R 00 00 09 00
 T 38 00 ED 4D
 R 00 00 09 00
-T 00 01
+T 66 00
 R 00 00 0A 00
-T 00 01
+T 66 00 ED 4D
 R 00 00 0A 00
+T 00 01
+R 00 00 0B 00
+T 00 01
+R 00 00 0B 00
 T 00 01 31 FF FF CD 00 00 C3 00 00
-R 00 00 0A 00 02 06 00 00 00 09 00 00
+R 00 00 0B 00 02 06 00 00 00 09 00 00
 T 00 00
 R 00 00 00 00
 T 00 00
diff --git a/sw/z80_tests/ram/build/main.asm b/sw/z80/tests/ram/build/main.asm
index f3b8add..f3b8add 100644
--- a/sw/z80_tests/ram/build/main.asm
+++ b/sw/z80/tests/ram/build/main.asm
diff --git a/sw/z80_tests/ram/build/main.lst b/sw/z80/tests/ram/build/main.lst
index 17142d4..17142d4 100644
--- a/sw/z80_tests/ram/build/main.lst
+++ b/sw/z80/tests/ram/build/main.lst
diff --git a/sw/z80_tests/ram/build/main.rel b/sw/z80/tests/ram/build/main.rel
index cad7a3c..cad7a3c 100644
--- a/sw/z80_tests/ram/build/main.rel
+++ b/sw/z80/tests/ram/build/main.rel
diff --git a/sw/z80_tests/ram/build/main.sym b/sw/z80/tests/ram/build/main.sym
index d81bdc8..d81bdc8 100644
--- a/sw/z80_tests/ram/build/main.sym
+++ b/sw/z80/tests/ram/build/main.sym
diff --git a/sw/z80/tests/ram/build/ram_test.lk b/sw/z80/tests/ram/build/ram_test.lk
new file mode 100644
index 0000000..724eb89
--- /dev/null
+++ b/sw/z80/tests/ram/build/ram_test.lk
@@ -0,0 +1,11 @@
+-mjwx
+-i build/ram_test.hex
+-b _CODE = 0x0000
+-b _DATA = 0x2000
+-k /usr/libexec/../share/sdcc/lib/z80
+-k /usr/share/sdcc/lib/z80
+-l z80
+build/crt0.rel
+build/main.rel
+
+-e
diff --git a/sw/z80/tests/ram/build/ram_test.map b/sw/z80/tests/ram/build/ram_test.map
new file mode 100644
index 0000000..0d36247
--- /dev/null
+++ b/sw/z80/tests/ram/build/ram_test.map
@@ -0,0 +1,174 @@
+ASxxxx Linker V03.00 + NoICE + sdld,  page 1.
+Hexadecimal  [32-Bits]
+
+Area                                    Addr        Size        Decimal Bytes (Attributes)
+--------------------------------        ----        ----        ------- ----- ------------
+.  .ABS.                            00000000    00000000 =           0. bytes (ABS,CON)
+
+      Value  Global                              Global Defined In Module
+      -----  --------------------------------   ------------------------
+     00000000  .__.ABS.                           main
+     00000000  l__BSEG                         
+     00000000  l__BSS                          
+     00000000  l__CABS                         
+     00000000  l__DABS                         
+     00000000  l__DATA                         
+     00000000  l__GSFINAL                      
+     00000000  l__GSINIT                       
+     00000000  l__HEADER                       
+     00000000  l__HEAP                         
+     00000000  l__HOME                         
+     00000000  l__INITIALIZED                  
+     00000000  l__INITIALIZER                  
+     00000000  s__CABS                         
+     00000000  s__CODE                         
+     00000000  s__DABS                         
+     00000000  s__HEADER                       
+     00000000  s__HEADER0                      
+     00000000  s__HEADER1                      
+     00000000  s__HEADER2                      
+     00000000  s__HEADER3                      
+     00000000  s__HEADER4                      
+     00000000  s__HEADER5                      
+     00000000  s__HEADER6                      
+     00000000  s__HEADER7                      
+     00000000  s__HEADER8                      
+     00000000  s__HEADER9                      
+     00000002  l__HEADER1                      
+     00000002  l__HEADER2                      
+     00000002  l__HEADER3                      
+     00000002  l__HEADER4                      
+     00000002  l__HEADER5                      
+     00000002  l__HEADER6                      
+     00000002  l__HEADER7                      
+     00000002  l__HEADER8                      
+     00000003  l__HEADER0                      
+     00000009  l__HEADER9                      
+     0000000D  l__CODE                         
+     0000000D  s__GSFINAL                      
+     0000000D  s__GSINIT                       
+     0000000D  s__HOME                         
+     0000000D  s__INITIALIZER                  
+     00002000  s__BSEG                         
+     00002000  s__BSS                          
+     00002000  s__DATA                         
+     00002000  s__HEAP                         
+     00002000  s__INITIALIZED                  
+
+ASxxxx Linker V03.00 + NoICE + sdld,  page 2.
+Hexadecimal  [32-Bits]
+
+Area                                    Addr        Size        Decimal Bytes (Attributes)
+--------------------------------        ----        ----        ------- ----- ------------
+_CODE                               00000000    0000000D =          13. bytes (REL,CON)
+
+      Value  Global                              Global Defined In Module
+      -----  --------------------------------   ------------------------
+     00000000  _exit                              crt0
+     00000003  _main                              main
+
+ASxxxx Linker V03.00 + NoICE + sdld,  page 3.
+Hexadecimal  [32-Bits]
+
+Area                                    Addr        Size        Decimal Bytes (Attributes)
+--------------------------------        ----        ----        ------- ----- ------------
+_HEADER0                            00000000    00000003 =           3. bytes (ABS,CON)
+
+      Value  Global                              Global Defined In Module
+      -----  --------------------------------   ------------------------
+ASxxxx Linker V03.00 + NoICE + sdld,  page 4.
+Hexadecimal  [32-Bits]
+
+Area                                    Addr        Size        Decimal Bytes (Attributes)
+--------------------------------        ----        ----        ------- ----- ------------
+_HEADER1                            00000000    00000002 =           2. bytes (ABS,CON)
+
+      Value  Global                              Global Defined In Module
+      -----  --------------------------------   ------------------------
+ASxxxx Linker V03.00 + NoICE + sdld,  page 5.
+Hexadecimal  [32-Bits]
+
+Area                                    Addr        Size        Decimal Bytes (Attributes)
+--------------------------------        ----        ----        ------- ----- ------------
+_HEADER2                            00000000    00000002 =           2. bytes (ABS,CON)
+
+      Value  Global                              Global Defined In Module
+      -----  --------------------------------   ------------------------
+ASxxxx Linker V03.00 + NoICE + sdld,  page 6.
+Hexadecimal  [32-Bits]
+
+Area                                    Addr        Size        Decimal Bytes (Attributes)
+--------------------------------        ----        ----        ------- ----- ------------
+_HEADER3                            00000000    00000002 =           2. bytes (ABS,CON)
+
+      Value  Global                              Global Defined In Module
+      -----  --------------------------------   ------------------------
+ASxxxx Linker V03.00 + NoICE + sdld,  page 7.
+Hexadecimal  [32-Bits]
+
+Area                                    Addr        Size        Decimal Bytes (Attributes)
+--------------------------------        ----        ----        ------- ----- ------------
+_HEADER4                            00000000    00000002 =           2. bytes (ABS,CON)
+
+      Value  Global                              Global Defined In Module
+      -----  --------------------------------   ------------------------
+ASxxxx Linker V03.00 + NoICE + sdld,  page 8.
+Hexadecimal  [32-Bits]
+
+Area                                    Addr        Size        Decimal Bytes (Attributes)
+--------------------------------        ----        ----        ------- ----- ------------
+_HEADER5                            00000000    00000002 =           2. bytes (ABS,CON)
+
+      Value  Global                              Global Defined In Module
+      -----  --------------------------------   ------------------------
+ASxxxx Linker V03.00 + NoICE + sdld,  page 9.
+Hexadecimal  [32-Bits]
+
+Area                                    Addr        Size        Decimal Bytes (Attributes)
+--------------------------------        ----        ----        ------- ----- ------------
+_HEADER6                            00000000    00000002 =           2. bytes (ABS,CON)
+
+      Value  Global                              Global Defined In Module
+      -----  --------------------------------   ------------------------
+ASxxxx Linker V03.00 + NoICE + sdld,  page 10.
+Hexadecimal  [32-Bits]
+
+Area                                    Addr        Size        Decimal Bytes (Attributes)
+--------------------------------        ----        ----        ------- ----- ------------
+_HEADER7                            00000000    00000002 =           2. bytes (ABS,CON)
+
+      Value  Global                              Global Defined In Module
+      -----  --------------------------------   ------------------------
+ASxxxx Linker V03.00 + NoICE + sdld,  page 11.
+Hexadecimal  [32-Bits]
+
+Area                                    Addr        Size        Decimal Bytes (Attributes)
+--------------------------------        ----        ----        ------- ----- ------------
+_HEADER8                            00000000    00000002 =           2. bytes (ABS,CON)
+
+      Value  Global                              Global Defined In Module
+      -----  --------------------------------   ------------------------
+ASxxxx Linker V03.00 + NoICE + sdld,  page 12.
+Hexadecimal  [32-Bits]
+
+Area                                    Addr        Size        Decimal Bytes (Attributes)
+--------------------------------        ----        ----        ------- ----- ------------
+_HEADER9                            00000000    00000009 =           9. bytes (ABS,CON)
+
+      Value  Global                              Global Defined In Module
+      -----  --------------------------------   ------------------------
+ASxxxx Linker V03.00 + NoICE + sdld,  page 13.
+
+Files Linked                              [ module(s) ]
+
+build/crt0.rel                            [ crt0 ]
+build/main.rel                            [ main ]
+
+ASxxxx Linker V03.00 + NoICE + sdld,  page 14.
+
+User Base Address Definitions
+
+_CODE = 0x0000
+_DATA = 0x2000
+
+
\ No newline at end of file
diff --git a/sw/z80/tests/ram/build/ram_test.noi b/sw/z80/tests/ram/build/ram_test.noi
new file mode 100644
index 0000000..94266c5
--- /dev/null
+++ b/sw/z80/tests/ram/build/ram_test.noi
@@ -0,0 +1,50 @@
+DEF .__.ABS. 0x0
+DEF l__BSEG 0x0
+DEF l__BSS 0x0
+DEF l__CABS 0x0
+DEF l__DABS 0x0
+DEF l__DATA 0x0
+DEF l__GSFINAL 0x0
+DEF l__GSINIT 0x0
+DEF l__HEADER 0x0
+DEF l__HEAP 0x0
+DEF l__HOME 0x0
+DEF l__INITIALIZED 0x0
+DEF l__INITIALIZER 0x0
+DEF s__CABS 0x0
+DEF s__CODE 0x0
+DEF s__DABS 0x0
+DEF s__HEADER 0x0
+DEF s__HEADER0 0x0
+DEF s__HEADER1 0x0
+DEF s__HEADER2 0x0
+DEF s__HEADER3 0x0
+DEF s__HEADER4 0x0
+DEF s__HEADER5 0x0
+DEF s__HEADER6 0x0
+DEF s__HEADER7 0x0
+DEF s__HEADER8 0x0
+DEF s__HEADER9 0x0
+DEF l__HEADER1 0x2
+DEF l__HEADER2 0x2
+DEF l__HEADER3 0x2
+DEF l__HEADER4 0x2
+DEF l__HEADER5 0x2
+DEF l__HEADER6 0x2
+DEF l__HEADER7 0x2
+DEF l__HEADER8 0x2
+DEF l__HEADER0 0x3
+DEF l__HEADER9 0x9
+DEF l__CODE 0xD
+DEF s__GSFINAL 0xD
+DEF s__GSINIT 0xD
+DEF s__HOME 0xD
+DEF s__INITIALIZER 0xD
+DEF s__BSEG 0x2000
+DEF s__BSS 0x2000
+DEF s__DATA 0x2000
+DEF s__HEAP 0x2000
+DEF s__INITIALIZED 0x2000
+DEF _exit 0x0
+DEF _main 0x3
+LOAD build/ram_test.ihx
diff --git a/sw/z80_tests/ram/build/test.lk b/sw/z80/tests/ram/build/test.lk
index 03a8db4..03a8db4 100644
--- a/sw/z80_tests/ram/build/test.lk
+++ b/sw/z80/tests/ram/build/test.lk
diff --git a/sw/z80_tests/ram/build/test.map b/sw/z80/tests/ram/build/test.map
index 07b953f..07b953f 100644
--- a/sw/z80_tests/ram/build/test.map
+++ b/sw/z80/tests/ram/build/test.map
diff --git a/sw/z80_tests/ram/build/test.noi b/sw/z80/tests/ram/build/test.noi
index 403beda..403beda 100644
--- a/sw/z80_tests/ram/build/test.noi
+++ b/sw/z80/tests/ram/build/test.noi
diff --git a/sw/z80_tests/ram/build/test.z80 b/sw/z80/tests/ram/build/test.z80
index 25a162a..25a162a 100644
--- a/sw/z80_tests/ram/build/test.z80
+++ b/sw/z80/tests/ram/build/test.z80
diff --git a/sw/z80_tests/ram/crt0.s b/sw/z80/tests/ram/crt0.s
index ac0698f..d775e66 100644
--- a/sw/z80_tests/ram/crt0.s
+++ b/sw/z80/tests/ram/crt0.s
@@ -21,7 +21,6 @@
 	.org	0x38
 	reti
     .org    0x66
-    ld hl,#BEEF
     reti
 
 	.org	0x100
diff --git a/sw/z80_tests/ram/main.c b/sw/z80/tests/ram/main.c
index 581072b..581072b 100644
--- a/sw/z80_tests/ram/main.c
+++ b/sw/z80/tests/ram/main.c
diff --git a/sw/z80_tests/ram/makefile b/sw/z80/tests/ram/makefile
index 35d7419..b8435a7 100644
--- a/sw/z80_tests/ram/makefile
+++ b/sw/z80/tests/ram/makefile
@@ -1,7 +1,7 @@
 ####
 # source code settings
 #
-OSNAME := test
+OSNAME := ram_test
  
 CSOURCES 	:=  $(wildcard *.c)