From: Alan Cox <alan@linux.intel.com>
Date: Thu, 16 Nov 2017 17:14:49 +0000 (+0000)
Subject: cc: add initial runtime pieces
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=4af1151d567af901ff622e10a7bf3b77733ee557;p=FUZIX.git

cc: add initial runtime pieces

Need a decent signed divide implementation adding to crun
---

diff --git a/Applications/SmallC/Z80/crt0.s b/Applications/SmallC/Z80/crt0.s
new file mode 100644
index 00000000..74152586
--- /dev/null
+++ b/Applications/SmallC/Z80/crt0.s
@@ -0,0 +1,43 @@
+		.code
+
+; start at 0x100
+start:		jp start2
+		.byte 'F'
+		.byte 'Z'
+		.byte 'X'
+		.byte '1'
+
+;
+;	Borrowed idea from UMZIX - put the info in known places then
+;	we can write "size" tools
+;
+;	This is confusing. SDCC doesn't produce a BSS, instead it
+;	produces an INITIALIZED (which everyone else calls DATA) and a
+;	DATA which everyone else would think of as BSS.
+;
+;	FIXME: we need to automate the load page setting
+;
+		.byte 0x01		; page to load at
+		.word 0			; chmem ("0 - 'all'")
+		.word __code_size		; gives us code size info
+		.word __data_size		; gives us data size info
+		.word __bss_size		; bss size info
+		.word 0			; spare
+
+start2:
+		ld hl, 4
+		add hl, sp
+		ld (_environ), hl
+		pop de			; argc
+		pop hl			; argv
+		push hl
+		ld (___argv), hl	; needed for stuff like err()
+		push de
+		ld hl, _exit		; return vector
+		push hl
+		jp _main		; go
+
+		.data
+
+_environ:	.word 0
+___argv:	.word 0
diff --git a/Applications/SmallC/Z80/runtime/crun.s b/Applications/SmallC/Z80/runtime/crun.s
new file mode 100644
index 00000000..ed258a0e
--- /dev/null
+++ b/Applications/SmallC/Z80/runtime/crun.s
@@ -0,0 +1,298 @@
+;
+;	Runtime support routines for the compiler itself. These are
+;	generated by the compiler in the compiled code
+;
+;	Converted from 8080 to Z80 and tidied up a bit. Some optimized
+;	Z80 routines used.
+;
+;	
+;
+	.code
+
+	.export	ccgchar
+	.export	ccgint
+	.export	ccpchar
+	.export	ccpint
+	.export	ccsxt
+	.export	ccor
+	.export	ccand
+	.export	ccxor
+	.export	cceq
+	.export	ccne
+	.export	ccgt
+	.export	ccle
+	.export	ccge
+	.export	cclt
+	.export	ccuge
+	.export ccult
+	.export ccugt
+	.export ccule
+	.export ccasr
+	.export	ccasl
+	.export	ccsub
+	.export	ccneg
+	.export cccom
+	.export	cclneg
+	.export	ccboot
+	.export	ccmul
+	.export	ccumul
+	.export	ccdiv
+;	.export	ccudiv
+	.export	cccase
+	.export	cccallhl
+
+ccgchar:
+	ld	a,(hl)
+ccsxt:
+	ld	l,a
+	rlca
+	sbc	a,a
+	ld	h,a
+	ret
+ccgint:
+	ld	a,(hl)
+	inc	hl
+	ld	h,(hl)
+	ld	l,a
+	ret
+ccpchar:
+	ld	a,l
+	ld	(de),a
+	ret
+ccpint:
+	ld	a,l
+	ld	(de),a
+	inc	de
+	ld	a,h
+	ld	(de),a
+	ret
+ccor:	ld 	a,h
+	or	d
+	ld	h,a
+	ld	a,l
+	or	e
+	ld	l,a
+	ret
+ccxor:	ld	a,h
+	xor	d
+	ld	h,a
+	ld	a,l
+	xor	e
+	ld	e,a
+	ret
+ccand:	ld	a,h
+	and	d
+	ld	h,a
+	ld	a,l
+	and	e
+	ld	e,a
+	ret
+cceq:	call	cccmp
+	ret	z
+	dec	hl
+	ret
+ccne:	call	cccmp
+	ret	nz
+	dec	hl
+	ret
+ccgt:	ex	de,hl
+	call	cccmp
+	ret	c
+	dec	hl
+	ret
+ccle:	call	cccmp
+	ret	c
+	ret	z
+	dec	hl
+	ret
+ccge:	call	cccmp
+	ret	nc
+	dec	hl
+	ret
+cclt:	call	cccmp
+	ret	c
+	dec	hl
+	ret
+ccuge:	call	ccucmp
+	ret	nc
+	dec	hl
+	ret
+ccult:	call	ccucmp
+	ret	c
+	dec	hl
+	ret
+ccule:	call	ccucmp
+	ret	z
+	ret	c
+	dec	hl
+	ret
+cccmp:
+	ld	a,e
+	sub	l
+	ld	e,a
+	ld	a,d
+	sub	h
+	ld	hl,1
+	jp	m,cccmp1
+	or	e
+	ret
+cccmp1:	or	e
+	scf
+	ret
+
+ccucmp:
+	ld	a,d
+	cp	h
+	jr	nz,ccret1
+	ld	a,e
+	cp	l
+ccret1:
+	ld	hl,1
+	ret
+
+ccasr:	ld	a,l
+	or	a
+	ret	z
+ccasrl:
+	sra	d
+	rr	e
+	dec	a
+	jr	nz,ccasrl
+	ret
+ccasl:	ld	a,l
+	or	a
+	ret	z
+ccasll:	sla	e
+	rl	d
+	dec	a
+	jr	nz,ccasll
+	ret
+ccsub:	ex	de,hl
+	or	a
+	sbc	hl,de
+	ret
+ccneg:	call	cccomm
+	inc	hl
+	ret
+cccom:	ld	a,h
+	cpl
+	ld	h,a
+	ld	a,l
+	cpl
+	ld	l,a
+	ret
+cclneg:	ld	a,h
+	or	l
+	jr	nz,ret0
+	inc	hl
+	ret
+ret0:	ld	hl,0
+	ret
+ccbool:	ld	a,h
+	or	l
+	ret	z
+	ld	hl,#1
+	ret
+
+;
+;	These might want to live somewhere else as they are bigger
+;
+;	HL = DE * HL (signed)
+;
+ccumul:
+ccmul:	push	bc
+	ld	a,h
+	ld	c,l
+	ld	b,16
+ccmul_1:
+	add	hl,hl
+	sla	c
+	rla
+	jr	nc, ccmul_2
+	add	hl,de
+ccmul_2:
+	djnz	ccmul_1
+	pop	bc
+	ret
+
+;
+;	Outputs HL = DE/HL and DE = DE % HL
+;
+ccudiv:
+	push	bc
+	ex	de,hl
+	ld	a,h
+	ld	b,8
+	ld	c,l
+	ld	hl,0
+ccdiv_1:
+	rla
+	adc	hl,hl
+	sbc	hl,de
+	jr	nc, ccdiv_2
+	add	hl,de
+ccdiv_2:
+	djnz	ccdiv_1
+	rla
+	cpl
+	ld	b,a
+	ld	a,c
+	ld	c,b
+	ld	b,8
+ccdiv_3:
+	rla
+	adc	hl,hl
+	sbc	hl,de
+	jr	nc, ccdiv_4
+	add	hl,de
+ccdiv_4:
+	djnz	ccdiv_3
+	rla
+	cpl
+	ex	de,hl
+	ld	h,c
+	ld	l,a
+	pop	bc
+	ret
+
+;
+;	As above but signed
+;
+;ccdiv:	TODO
+
+cccase:
+	ex	de,hl
+	pop	hl
+cccase1:
+	call	cccase4
+	ld	a,e
+	cp	c
+	jr	nz,cccase2
+	ld	a,d
+	cp	b
+	jr	nz,cccase2
+	call	cccase4
+	jr	z,cccase3
+	push	bc
+	ret
+cccase2:
+	call	cccase4
+	jr	nz,cccase1
+cccase3:
+	dec	hl
+	dec	hl
+	dec	hl
+	ld	d,(hl)
+	dec	hl
+	ld	e,(hl)
+	ex	de,hl
+cccallhl:
+	jp	(hl)
+cccase4:
+	ld	c,(hl)
+	inc	hl
+	ld	b,(hl)
+	inc	hl
+	ld	a,c
+	or	b
+	ret
diff --git a/Applications/SmallC/Z80/syscall/__accept.s b/Applications/SmallC/Z80/syscall/__accept.s
new file mode 100644
index 00000000..44f40a43
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__accept.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __accept
+
+__accept:
+	ld hl, 94
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__exit.s b/Applications/SmallC/Z80/syscall/__exit.s
new file mode 100644
index 00000000..4602ba09
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__exit.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __exit
+
+__exit:
+	ld hl, 0
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__fork.s b/Applications/SmallC/Z80/syscall/__fork.s
new file mode 100644
index 00000000..9b46cacc
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__fork.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __fork
+
+__fork:
+	ld hl, 32
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__fstat.s b/Applications/SmallC/Z80/syscall/__fstat.s
new file mode 100644
index 00000000..8e9abca0
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__fstat.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __fstat
+
+__fstat:
+	ld hl, 16
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__getdirent.s b/Applications/SmallC/Z80/syscall/__getdirent.s
new file mode 100644
index 00000000..98477258
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__getdirent.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __getdirent
+
+__getdirent:
+	ld hl, 24
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__getfsys.s b/Applications/SmallC/Z80/syscall/__getfsys.s
new file mode 100644
index 00000000..541598fc
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__getfsys.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __getfsys
+
+__getfsys:
+	ld hl, 22
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__getsockaddrs.s b/Applications/SmallC/Z80/syscall/__getsockaddrs.s
new file mode 100644
index 00000000..9dba91a3
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__getsockaddrs.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __getsockaddrs
+
+__getsockaddrs:
+	ld hl, 95
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__lseek.s b/Applications/SmallC/Z80/syscall/__lseek.s
new file mode 100644
index 00000000..f6590287
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__lseek.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __lseek
+
+__lseek:
+	ld hl, 9
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys66.s b/Applications/SmallC/Z80/syscall/__nosys66.s
new file mode 100644
index 00000000..7f5eebcf
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys66.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys66
+
+__nosys66:
+	ld hl, 66
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys67.s b/Applications/SmallC/Z80/syscall/__nosys67.s
new file mode 100644
index 00000000..8fd9f80f
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys67.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys67
+
+__nosys67:
+	ld hl, 67
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys68.s b/Applications/SmallC/Z80/syscall/__nosys68.s
new file mode 100644
index 00000000..e5df38c7
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys68.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys68
+
+__nosys68:
+	ld hl, 68
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys69.s b/Applications/SmallC/Z80/syscall/__nosys69.s
new file mode 100644
index 00000000..9658cb4e
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys69.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys69
+
+__nosys69:
+	ld hl, 69
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys70.s b/Applications/SmallC/Z80/syscall/__nosys70.s
new file mode 100644
index 00000000..70deb0fb
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys70.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys70
+
+__nosys70:
+	ld hl, 70
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys71.s b/Applications/SmallC/Z80/syscall/__nosys71.s
new file mode 100644
index 00000000..cdf557ae
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys71.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys71
+
+__nosys71:
+	ld hl, 71
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys80.s b/Applications/SmallC/Z80/syscall/__nosys80.s
new file mode 100644
index 00000000..fcf2ad46
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys80.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys80
+
+__nosys80:
+	ld hl, 80
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys81.s b/Applications/SmallC/Z80/syscall/__nosys81.s
new file mode 100644
index 00000000..b768c029
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys81.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys81
+
+__nosys81:
+	ld hl, 81
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys82.s b/Applications/SmallC/Z80/syscall/__nosys82.s
new file mode 100644
index 00000000..1e11f307
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys82.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys82
+
+__nosys82:
+	ld hl, 82
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys83.s b/Applications/SmallC/Z80/syscall/__nosys83.s
new file mode 100644
index 00000000..a6e468b1
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys83.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys83
+
+__nosys83:
+	ld hl, 83
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys84.s b/Applications/SmallC/Z80/syscall/__nosys84.s
new file mode 100644
index 00000000..33df767e
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys84.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys84
+
+__nosys84:
+	ld hl, 84
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys85.s b/Applications/SmallC/Z80/syscall/__nosys85.s
new file mode 100644
index 00000000..a78b7901
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys85.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys85
+
+__nosys85:
+	ld hl, 85
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys86.s b/Applications/SmallC/Z80/syscall/__nosys86.s
new file mode 100644
index 00000000..3383d307
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys86.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys86
+
+__nosys86:
+	ld hl, 86
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys87.s b/Applications/SmallC/Z80/syscall/__nosys87.s
new file mode 100644
index 00000000..54a9ce7b
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys87.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys87
+
+__nosys87:
+	ld hl, 87
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys88.s b/Applications/SmallC/Z80/syscall/__nosys88.s
new file mode 100644
index 00000000..21c899e9
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys88.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys88
+
+__nosys88:
+	ld hl, 88
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__nosys89.s b/Applications/SmallC/Z80/syscall/__nosys89.s
new file mode 100644
index 00000000..a1227d2d
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__nosys89.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __nosys89
+
+__nosys89:
+	ld hl, 89
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__pause.s b/Applications/SmallC/Z80/syscall/__pause.s
new file mode 100644
index 00000000..14f6ebeb
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__pause.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __pause
+
+__pause:
+	ld hl, 37
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__profil.s b/Applications/SmallC/Z80/syscall/__profil.s
new file mode 100644
index 00000000..887acdd1
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__profil.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __profil
+
+__profil:
+	ld hl, 56
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__recvfrom.s b/Applications/SmallC/Z80/syscall/__recvfrom.s
new file mode 100644
index 00000000..1ed6a465
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__recvfrom.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __recvfrom
+
+__recvfrom:
+	ld hl, 97
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__select.s b/Applications/SmallC/Z80/syscall/__select.s
new file mode 100644
index 00000000..30aabdf8
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__select.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __select
+
+__select:
+	ld hl, 72
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__sendto.s b/Applications/SmallC/Z80/syscall/__sendto.s
new file mode 100644
index 00000000..58ed1e88
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__sendto.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __sendto
+
+__sendto:
+	ld hl, 96
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__shutdown.s b/Applications/SmallC/Z80/syscall/__shutdown.s
new file mode 100644
index 00000000..12a6a085
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__shutdown.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __shutdown
+
+__shutdown:
+	ld hl, 98
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__sigdisp.s b/Applications/SmallC/Z80/syscall/__sigdisp.s
new file mode 100644
index 00000000..25ac7354
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__sigdisp.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __sigdisp
+
+__sigdisp:
+	ld hl, 59
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__stat.s b/Applications/SmallC/Z80/syscall/__stat.s
new file mode 100644
index 00000000..c93a17b0
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__stat.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __stat
+
+__stat:
+	ld hl, 15
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__stime.s b/Applications/SmallC/Z80/syscall/__stime.s
new file mode 100644
index 00000000..ac0371d3
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__stime.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __stime
+
+__stime:
+	ld hl, 28
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__time.s b/Applications/SmallC/Z80/syscall/__time.s
new file mode 100644
index 00000000..57bc840b
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__time.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __time
+
+__time:
+	ld hl, 27
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__umount.s b/Applications/SmallC/Z80/syscall/__umount.s
new file mode 100644
index 00000000..72a6695e
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__umount.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __umount
+
+__umount:
+	ld hl, 34
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/__uname.s b/Applications/SmallC/Z80/syscall/__uname.s
new file mode 100644
index 00000000..8e886cfc
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/__uname.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export __uname
+
+__uname:
+	ld hl, 54
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_access.s b/Applications/SmallC/Z80/syscall/_access.s
new file mode 100644
index 00000000..83b4b174
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_access.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _access
+
+_access:
+	ld hl, 12
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_acct.s b/Applications/SmallC/Z80/syscall/_acct.s
new file mode 100644
index 00000000..f189fa05
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_acct.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _acct
+
+_acct:
+	ld hl, 63
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_alarm.s b/Applications/SmallC/Z80/syscall/_alarm.s
new file mode 100644
index 00000000..9ad407cf
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_alarm.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _alarm
+
+_alarm:
+	ld hl, 38
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_bind.s b/Applications/SmallC/Z80/syscall/_bind.s
new file mode 100644
index 00000000..9adecd92
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_bind.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _bind
+
+_bind:
+	ld hl, 92
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_brk.s b/Applications/SmallC/Z80/syscall/_brk.s
new file mode 100644
index 00000000..86233ae1
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_brk.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _brk
+
+_brk:
+	ld hl, 30
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_chdir.s b/Applications/SmallC/Z80/syscall/_chdir.s
new file mode 100644
index 00000000..0706e645
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_chdir.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _chdir
+
+_chdir:
+	ld hl, 10
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_chmod.s b/Applications/SmallC/Z80/syscall/_chmod.s
new file mode 100644
index 00000000..c1de97d8
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_chmod.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _chmod
+
+_chmod:
+	ld hl, 13
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_chown.s b/Applications/SmallC/Z80/syscall/_chown.s
new file mode 100644
index 00000000..67a094a7
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_chown.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _chown
+
+_chown:
+	ld hl, 14
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_chroot.s b/Applications/SmallC/Z80/syscall/_chroot.s
new file mode 100644
index 00000000..f637eb21
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_chroot.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _chroot
+
+_chroot:
+	ld hl, 46
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_close.s b/Applications/SmallC/Z80/syscall/_close.s
new file mode 100644
index 00000000..d36f3bdf
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_close.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _close
+
+_close:
+	ld hl, 2
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_connect.s b/Applications/SmallC/Z80/syscall/_connect.s
new file mode 100644
index 00000000..56fac39f
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_connect.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _connect
+
+_connect:
+	ld hl, 93
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_dup.s b/Applications/SmallC/Z80/syscall/_dup.s
new file mode 100644
index 00000000..77987cb7
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_dup.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _dup
+
+_dup:
+	ld hl, 17
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_dup2.s b/Applications/SmallC/Z80/syscall/_dup2.s
new file mode 100644
index 00000000..180c230b
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_dup2.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _dup2
+
+_dup2:
+	ld hl, 36
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_execve.s b/Applications/SmallC/Z80/syscall/_execve.s
new file mode 100644
index 00000000..9751d553
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_execve.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _execve
+
+_execve:
+	ld hl, 23
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_fchdir.s b/Applications/SmallC/Z80/syscall/_fchdir.s
new file mode 100644
index 00000000..866e9b37
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_fchdir.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _fchdir
+
+_fchdir:
+	ld hl, 48
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_fchmod.s b/Applications/SmallC/Z80/syscall/_fchmod.s
new file mode 100644
index 00000000..79d2888a
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_fchmod.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _fchmod
+
+_fchmod:
+	ld hl, 49
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_fchown.s b/Applications/SmallC/Z80/syscall/_fchown.s
new file mode 100644
index 00000000..6ad60d92
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_fchown.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _fchown
+
+_fchown:
+	ld hl, 50
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_fcntl.s b/Applications/SmallC/Z80/syscall/_fcntl.s
new file mode 100644
index 00000000..4097e02a
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_fcntl.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _fcntl
+
+_fcntl:
+	ld hl, 47
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_flock.s b/Applications/SmallC/Z80/syscall/_flock.s
new file mode 100644
index 00000000..ec12c712
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_flock.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _flock
+
+_flock:
+	ld hl, 60
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_getegid.s b/Applications/SmallC/Z80/syscall/_getegid.s
new file mode 100644
index 00000000..8849be51
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_getegid.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _getegid
+
+_getegid:
+	ld hl, 45
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_geteuid.s b/Applications/SmallC/Z80/syscall/_geteuid.s
new file mode 100644
index 00000000..191fda6f
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_geteuid.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _geteuid
+
+_geteuid:
+	ld hl, 44
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_getgid.s b/Applications/SmallC/Z80/syscall/_getgid.s
new file mode 100644
index 00000000..45c1a4f3
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_getgid.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _getgid
+
+_getgid:
+	ld hl, 41
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_getgroups.s b/Applications/SmallC/Z80/syscall/_getgroups.s
new file mode 100644
index 00000000..498c9e07
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_getgroups.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _getgroups
+
+_getgroups:
+	ld hl, 74
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_getpgrp.s b/Applications/SmallC/Z80/syscall/_getpgrp.s
new file mode 100644
index 00000000..f8ad3131
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_getpgrp.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _getpgrp
+
+_getpgrp:
+	ld hl, 61
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_getpid.s b/Applications/SmallC/Z80/syscall/_getpid.s
new file mode 100644
index 00000000..8eec6c25
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_getpid.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _getpid
+
+_getpid:
+	ld hl, 18
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_getppid.s b/Applications/SmallC/Z80/syscall/_getppid.s
new file mode 100644
index 00000000..a2069295
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_getppid.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _getppid
+
+_getppid:
+	ld hl, 19
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_getrlimit.s b/Applications/SmallC/Z80/syscall/_getrlimit.s
new file mode 100644
index 00000000..b266ee62
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_getrlimit.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _getrlimit
+
+_getrlimit:
+	ld hl, 75
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_getsid.s b/Applications/SmallC/Z80/syscall/_getsid.s
new file mode 100644
index 00000000..ee02cc48
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_getsid.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _getsid
+
+_getsid:
+	ld hl, 79
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_getuid.s b/Applications/SmallC/Z80/syscall/_getuid.s
new file mode 100644
index 00000000..617ef1e7
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_getuid.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _getuid
+
+_getuid:
+	ld hl, 20
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_ioctl.s b/Applications/SmallC/Z80/syscall/_ioctl.s
new file mode 100644
index 00000000..3cfcaee5
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_ioctl.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _ioctl
+
+_ioctl:
+	ld hl, 29
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_kill.s b/Applications/SmallC/Z80/syscall/_kill.s
new file mode 100644
index 00000000..13b813bb
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_kill.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _kill
+
+_kill:
+	ld hl, 39
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_link.s b/Applications/SmallC/Z80/syscall/_link.s
new file mode 100644
index 00000000..bc1535c0
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_link.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _link
+
+_link:
+	ld hl, 5
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_listen.s b/Applications/SmallC/Z80/syscall/_listen.s
new file mode 100644
index 00000000..d89b5960
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_listen.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _listen
+
+_listen:
+	ld hl, 91
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_memalloc.s b/Applications/SmallC/Z80/syscall/_memalloc.s
new file mode 100644
index 00000000..6e798289
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_memalloc.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _memalloc
+
+_memalloc:
+	ld hl, 64
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_memfree.s b/Applications/SmallC/Z80/syscall/_memfree.s
new file mode 100644
index 00000000..3f977183
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_memfree.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _memfree
+
+_memfree:
+	ld hl, 65
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_mkdir.s b/Applications/SmallC/Z80/syscall/_mkdir.s
new file mode 100644
index 00000000..bf5ba461
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_mkdir.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _mkdir
+
+_mkdir:
+	ld hl, 51
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_mknod.s b/Applications/SmallC/Z80/syscall/_mknod.s
new file mode 100644
index 00000000..3463376c
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_mknod.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _mknod
+
+_mknod:
+	ld hl, 4
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_mount.s b/Applications/SmallC/Z80/syscall/_mount.s
new file mode 100644
index 00000000..9b92aca7
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_mount.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _mount
+
+_mount:
+	ld hl, 33
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_nice.s b/Applications/SmallC/Z80/syscall/_nice.s
new file mode 100644
index 00000000..c0956458
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_nice.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _nice
+
+_nice:
+	ld hl, 58
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_open.s b/Applications/SmallC/Z80/syscall/_open.s
new file mode 100644
index 00000000..1f17317d
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_open.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _open
+
+_open:
+	ld hl, 1
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_pipe.s b/Applications/SmallC/Z80/syscall/_pipe.s
new file mode 100644
index 00000000..3689f3b2
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_pipe.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _pipe
+
+_pipe:
+	ld hl, 40
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_read.s b/Applications/SmallC/Z80/syscall/_read.s
new file mode 100644
index 00000000..0d504a5e
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_read.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _read
+
+_read:
+	ld hl, 7
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_rename.s b/Applications/SmallC/Z80/syscall/_rename.s
new file mode 100644
index 00000000..eba2ece6
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_rename.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _rename
+
+_rename:
+	ld hl, 3
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_rmdir.s b/Applications/SmallC/Z80/syscall/_rmdir.s
new file mode 100644
index 00000000..8bab7327
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_rmdir.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _rmdir
+
+_rmdir:
+	ld hl, 52
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_sbrk.s b/Applications/SmallC/Z80/syscall/_sbrk.s
new file mode 100644
index 00000000..e0be95b6
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_sbrk.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _sbrk
+
+_sbrk:
+	ld hl, 31
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_setgid.s b/Applications/SmallC/Z80/syscall/_setgid.s
new file mode 100644
index 00000000..c7180497
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_setgid.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _setgid
+
+_setgid:
+	ld hl, 26
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_setgroups.s b/Applications/SmallC/Z80/syscall/_setgroups.s
new file mode 100644
index 00000000..5556edb6
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_setgroups.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _setgroups
+
+_setgroups:
+	ld hl, 73
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_setpgid.s b/Applications/SmallC/Z80/syscall/_setpgid.s
new file mode 100644
index 00000000..d8fdc442
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_setpgid.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _setpgid
+
+_setpgid:
+	ld hl, 77
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_setpgrp.s b/Applications/SmallC/Z80/syscall/_setpgrp.s
new file mode 100644
index 00000000..95e3f92b
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_setpgrp.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _setpgrp
+
+_setpgrp:
+	ld hl, 53
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_setrlimit.s b/Applications/SmallC/Z80/syscall/_setrlimit.s
new file mode 100644
index 00000000..ef82605c
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_setrlimit.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _setrlimit
+
+_setrlimit:
+	ld hl, 76
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_setsid.s b/Applications/SmallC/Z80/syscall/_setsid.s
new file mode 100644
index 00000000..cb93e123
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_setsid.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _setsid
+
+_setsid:
+	ld hl, 78
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_setuid.s b/Applications/SmallC/Z80/syscall/_setuid.s
new file mode 100644
index 00000000..bc30e8b8
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_setuid.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _setuid
+
+_setuid:
+	ld hl, 25
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_signal.s b/Applications/SmallC/Z80/syscall/_signal.s
new file mode 100644
index 00000000..e10cda2d
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_signal.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _signal
+
+_signal:
+	ld hl, 35
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_socket.s b/Applications/SmallC/Z80/syscall/_socket.s
new file mode 100644
index 00000000..5b7afe3a
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_socket.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _socket
+
+_socket:
+	ld hl, 90
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_sync.s b/Applications/SmallC/Z80/syscall/_sync.s
new file mode 100644
index 00000000..8dde179c
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_sync.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _sync
+
+_sync:
+	ld hl, 11
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_times.s b/Applications/SmallC/Z80/syscall/_times.s
new file mode 100644
index 00000000..7664d682
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_times.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _times
+
+_times:
+	ld hl, 42
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_uadmin.s b/Applications/SmallC/Z80/syscall/_uadmin.s
new file mode 100644
index 00000000..f0decdb2
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_uadmin.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _uadmin
+
+_uadmin:
+	ld hl, 57
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_umask.s b/Applications/SmallC/Z80/syscall/_umask.s
new file mode 100644
index 00000000..db1ebe79
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_umask.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _umask
+
+_umask:
+	ld hl, 21
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_unlink.s b/Applications/SmallC/Z80/syscall/_unlink.s
new file mode 100644
index 00000000..cd8b5565
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_unlink.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _unlink
+
+_unlink:
+	ld hl, 6
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_utime.s b/Applications/SmallC/Z80/syscall/_utime.s
new file mode 100644
index 00000000..906b0833
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_utime.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _utime
+
+_utime:
+	ld hl, 43
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_waitpid.s b/Applications/SmallC/Z80/syscall/_waitpid.s
new file mode 100644
index 00000000..6de2d73c
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_waitpid.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _waitpid
+
+_waitpid:
+	ld hl, 55
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_write.s b/Applications/SmallC/Z80/syscall/_write.s
new file mode 100644
index 00000000..2f868add
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_write.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _write
+
+_write:
+	ld hl, 8
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/_yield.s b/Applications/SmallC/Z80/syscall/_yield.s
new file mode 100644
index 00000000..94d73ccb
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/_yield.s
@@ -0,0 +1,7 @@
+	.code
+
+	.export _yield
+
+_yield:
+	ld hl, 62
+	jp __syscall
diff --git a/Applications/SmallC/Z80/syscall/syscall.s b/Applications/SmallC/Z80/syscall/syscall.s
new file mode 100644
index 00000000..5bebfe61
--- /dev/null
+++ b/Applications/SmallC/Z80/syscall/syscall.s
@@ -0,0 +1,19 @@
+		.export	__syscall
+
+		.code
+__syscall:
+		ex	(sp), hl		; hl is now return addr
+						; stack is syscall
+		ex	de, hl			; save return addr in de
+		rst	0x30
+		ex	de, hl			; undo the magic
+		ex	(sp), hl
+		ex	de, hl			; return with HL
+		ret	nc			; ok
+		ld	(_errno), hl		; error path
+		ld	hl, 0xffff
+		ret
+
+		.data
+
+_errno:		.word	0
diff --git a/Applications/SmallC/tools/gen-syscall.c b/Applications/SmallC/tools/gen-syscall.c
new file mode 100644
index 00000000..8f0fe7ff
--- /dev/null
+++ b/Applications/SmallC/tools/gen-syscall.c
@@ -0,0 +1,65 @@
+/*
+ *	Generate the syscall functions. For Z80 at the moment. Extend to
+ *	do the others as well
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "syscall_name.h"
+
+static char namebuf[128];
+
+/*
+ *	For Z80 it's kind of simple - load the call number and jump
+ *	to the common helper.
+ */
+static void write_Z80_call(int n)
+{
+  FILE *fp;
+  snprintf(namebuf, 128, "Z80/syscall/_%s.s", syscall_name[n]);
+  fp = fopen(namebuf, "w");
+  if (fp == NULL) {
+    perror(namebuf);
+    exit(1);
+  }
+  fprintf(fp, "\t.code\n\n");
+  fprintf(fp, "\t.export _%s\n\n", syscall_name[n]);
+  fprintf(fp, "_%s:\n\tld hl, %d\n", syscall_name[n], n);
+  fprintf(fp, "\tjp __syscall\n");
+  fclose(fp);
+}
+
+static void write_Z80_call_table(void)
+{
+  int i;
+  for (i = 0; i < NR_SYSCALL; i++)
+    write_Z80_call(i);
+}
+
+static void write_Z80_makefile(void)
+{
+  int i;
+  FILE *fp = fopen("Z80/syscall/Makefile", "w");
+  if (fp == NULL) {
+    perror("Makefile");
+    exit(1);
+  }
+  fprintf(fp, "SRCS = syscall.s\n", syscall_name[0]);
+  for (i = 0; i < NR_SYSCALL; i++)
+    fprintf(fp, "SRCS += _%s.s\n", syscall_name[i]);
+  fprintf(fp, "\nsyscall.a: $(SRCS)\n");
+  fprintf(fp, "\t$(CROSS_AR) rc syslib.lib $(OBJS)\n\n");
+  fprintf(fp, "$(OBJS): %%.o: %%.s\n");
+  fprintf(fp, "\t$(CROSS_AS) $<\n\n");
+  fprintf(fp, "clean:\n");
+  fprintf(fp, "\trm -f $(OBJS) $(SRCS) syscall.a *~\n\n");
+  fclose(fp);
+}
+
+int main(int argc, char *argv[])
+{
+  write_Z80_makefile();
+  write_Z80_call_table();
+  exit(0);
+}