[test] Move i386-specific tests to arch/i386/tests

Signed-off-by: Michael Brown <mcb30@ipxe.org>

5 files changed, 347 insertions, 0 deletions

diff --git a/src/arch/i386/Makefile b/src/arch/i386/Makefile
index 89393d06..a5298604 100644
--- a/src/arch/i386/Makefile
+++ b/src/arch/i386/Makefile
@@ -84,6 +84,7 @@ endif
 #
 SRCDIRS		+= arch/i386/core
 SRCDIRS		+= arch/i386/image
+SRCDIRS		+= arch/i386/tests
 SRCDIRS		+= arch/i386/interface/syslinux
 
 # Include common x86 Makefile
diff --git a/src/arch/i386/tests/comboot/shuffle-simple.asm b/src/arch/i386/tests/comboot/shuffle-simple.asm
new file mode 100644
index 00000000..8ede8d09
--- /dev/null
+++ b/src/arch/i386/tests/comboot/shuffle-simple.asm
@@ -0,0 +1,40 @@
+	bits 16
+	org 100h
+
+	jmp start
+
+shuffle_start:
+	push 0xB800
+	pop es
+	mov cx, 80*24*2
+	mov ax, 'AA'
+	xor di, di
+	rep stosw
+.lbl:	jmp .lbl
+shuffle_end:
+	nop
+shuffle_len equ (shuffle_end - shuffle_start + 1)
+
+start:
+	; calculate physical address of shuffled part
+	xor eax, eax
+	push ds
+	pop ax
+	shl eax, 4
+	add ax, shuffle_start
+	mov dword [source], eax
+
+	mov ax, 0012h
+	mov di, shuffle_descriptors
+	mov cx, num_shuffle_descriptors
+	mov ebp, 0x7c00
+	int 22h
+	int3
+
+shuffle_descriptors:
+	dd 0x7C00
+source:	dd 0
+	dd shuffle_len
+
+num_shuffle_descriptors equ 1
+
diff --git a/src/arch/i386/tests/comboot/version.asm b/src/arch/i386/tests/comboot/version.asm
new file mode 100644
index 00000000..01140423
--- /dev/null
+++ b/src/arch/i386/tests/comboot/version.asm
@@ -0,0 +1,136 @@
+	bits 16
+	org 100h
+
+_start:
+	; first check for SYSLINUX
+	mov ah, 30h
+	int 21h
+
+	cmp eax, 59530000h
+	jne .not_syslinux
+	cmp ebx, 4c530000h
+	jne .not_syslinux
+	cmp ecx, 4e490000h
+	jne .not_syslinux
+	cmp edx, 58550000h
+	jne .not_syslinux
+
+	; now get syslinux version
+	mov ax, 0001h
+	int 22h
+
+	push cx
+	push dx
+	push di
+	push si
+	push es
+
+	; print version string
+	mov dx, str_version
+	mov ah, 09h
+	int 21h
+
+	pop es
+	pop bx
+	push es
+	mov ax, 0002h
+	int 22h
+
+	; print copyright string
+	mov dx, str_copyright
+	mov ah, 09h
+	int 21h
+
+	pop es
+	pop bx
+	mov ax, 0002h
+	int 22h
+
+	; print syslinux derivative id
+	mov dx, str_derivative
+	mov ah, 09h
+	int 21h
+
+	pop ax
+	call print_hex_byte
+
+	; print version number
+	mov dx, str_version_num
+	mov ah, 09h
+	int 21h
+
+	pop cx
+	push cx
+	mov ax, cx
+	and ax, 0FFh
+	call print_dec_word
+
+	mov dl, '.'
+	mov ah, 02h
+	int 21h
+
+	pop cx
+	mov ax, cx
+	shr ax, 8
+	call print_dec_word
+
+	ret
+
+
+.not_syslinux:
+	mov dx, str_not_syslinux
+	mov ah, 09h
+	int 21h
+	ret
+
+; input: al = byte to print in hex
+print_hex_byte:
+	push ax
+	shr al, 4
+	call print_hex_nybble
+	pop ax
+	call print_hex_nybble
+	ret
+
+; input: bottom half of al = nybble to print in hex
+print_hex_nybble:
+	push ax
+	mov bl, al
+	and bx, 1111b
+	mov dl, [str_hex + bx]
+	mov ah, 02h
+	int 21h
+	pop ax
+	ret
+
+str_hex: db "01234567890abcdef"
+
+; input: ax = word to print
+print_dec_word:
+	mov cx, 10
+	mov word [.count], 0
+.loop:
+	xor dx, dx
+	div cx
+	inc word [.count]
+	push dx
+	test ax, ax
+	jnz .loop
+
+.print:
+	pop dx
+	add dx, '0'
+	mov ah, 02h
+	int 21h
+	dec word [.count]
+	jnz .print
+
+	ret
+
+.count:	dw 0
+
+str_not_syslinux: db "Not SYSLINUX or derivative (running on DOS?)$"
+str_version: db "Version: $"
+str_copyright: db 10, "Copyright: $"
+str_derivative: db 10, "Derivative ID: 0x$"
+str_version_num: db 10, "Version number: $"
diff --git a/src/arch/i386/tests/gdbstub_test.S b/src/arch/i386/tests/gdbstub_test.S
new file mode 100644
index 00000000..739b0527
--- /dev/null
+++ b/src/arch/i386/tests/gdbstub_test.S
@@ -0,0 +1,54 @@
+	.arch i386
+
+	.section ".data", "aw", @progbits
+watch_me:
+	.long 0xfeedbeef
+
+	.section ".text", "ax", @progbits
+	.code32
+gdbstub_test:
+	/* 1. Read registers test */
+	movl    $0xea010203, %eax
+	movl    $0xeb040506, %ebx
+	movl    $0xec070809, %ecx
+	movl    $0xed0a0b0c, %edx
+	movl    $0x510d0e0f, %esi
+	movl    $0xd1102030, %edi
+	int	$3
+
+	/* 2. Write registers test */
+	int	$3
+
+	/* 3. Read memory test */
+	subl	$8, %esp
+	movl	$0x11223344, 4(%esp)
+	movw	$0x5566, 2(%esp)
+	movb	$0x77, (%esp)
+	int	$3
+
+	/* 4. Write memory test */
+	int	$3
+	addl	$8, %esp
+
+	/* 5. Step test */
+	int	$3
+	nop
+
+	/* 6. Access watch test */
+	movl	$0x600d0000, %ecx
+	movl	watch_me, %eax
+	movl	$0xbad00000, %ecx
+	int	$3
+	movl	$0x600d0001, %ecx
+	movl	%eax, watch_me
+	movl	$0xbad00001, %ecx
+	int	$3
+
+	/* 7. Write watch test */
+	movl	$0x600d0002, %ecx
+	movl	%eax, watch_me
+	movl	$0xbad00002, %ecx
+	int	$3
+
+1:
+	jmp	1b
diff --git a/src/arch/i386/tests/gdbstub_test.gdb b/src/arch/i386/tests/gdbstub_test.gdb
new file mode 100755
index 00000000..bcfa07da
--- /dev/null
+++ b/src/arch/i386/tests/gdbstub_test.gdb
@@ -0,0 +1,116 @@
+#!/usr/bin/gdb -x
+# Test suite for GDB remote debugging
+# Run:
+#   make bin/ipxe.hd.tmp
+#   make
+#   gdb
+#   (gdb) target remote :TCPPORT
+#   OR
+#   (gdb) target remote udp:IP:UDPPORT
+#   (gdb) source tests/gdbstub_test.gdb
+
+define ipxe_load_symbols
+	file bin/ipxe.hd.tmp
+end
+
+define ipxe_assert
+	if $arg0 != $arg1
+		echo FAIL $arg2\n
+	else
+		echo PASS $arg2\n
+	end
+end
+
+define ipxe_start_tests
+	jump gdbstub_test
+end
+
+define ipxe_test_regs_read
+	ipxe_assert $eax 0xea010203 "ipxe_test_regs_read eax"
+	ipxe_assert $ebx 0xeb040506 "ipxe_test_regs_read ebx"
+	ipxe_assert $ecx 0xec070809 "ipxe_test_regs_read ecx"
+	ipxe_assert $edx 0xed0a0b0c "ipxe_test_regs_read edx"
+	ipxe_assert $esi 0x510d0e0f "ipxe_test_regs_read esi"
+	ipxe_assert $edi 0xd1102030 "ipxe_test_regs_read edi"
+end
+
+define ipxe_test_regs_write
+	set $eax = 0xea112233
+	set $ebx = 0xeb445566
+	set $ecx = 0xec778899
+	set $edx = 0xedaabbcc
+	set $esi = 0x51ddeeff
+	set $edi = 0xd1010203
+	c
+	ipxe_assert $eax 0xea112233 "ipxe_test_regs_write eax"
+	ipxe_assert $ebx 0xeb445566 "ipxe_test_regs_write ebx"
+	ipxe_assert $ecx 0xec778899 "ipxe_test_regs_write ecx"
+	ipxe_assert $edx 0xedaabbcc "ipxe_test_regs_write edx"
+	ipxe_assert $esi 0x51ddeeff "ipxe_test_regs_write esi"
+	ipxe_assert $edi 0xd1010203 "ipxe_test_regs_write edi"
+
+	# This assumes segment selectors are always 0x10 or 0x8 (for code).
+	ipxe_assert $cs 0x08 "ipxe_test_regs_write cs"
+	ipxe_assert $ds 0x10 "ipxe_test_regs_write ds"
+end
+
+define ipxe_test_mem_read
+	c
+	ipxe_assert ({int}($esp+4)) 0x11223344 "ipxe_test_mem_read int"
+	ipxe_assert ({short}($esp+2)) 0x5566 "ipxe_test_mem_read short"
+	ipxe_assert ({char}($esp)) 0x77 "ipxe_test_mem_read char"
+end
+
+define ipxe_test_mem_write
+	set ({int}($esp+4)) = 0xaabbccdd
+	set ({short}($esp+2)) = 0xeeff
+	set ({char}($esp)) = 0x99
+	c
+	ipxe_assert ({int}($esp+4)) 0xaabbccdd "ipxe_test_mem_write int"
+	ipxe_assert ({short}($esp+2)) (short)0xeeff "ipxe_test_mem_write short"
+	ipxe_assert ({char}($esp)) (char)0x99 "ipxe_test_mem_write char"
+end
+
+define ipxe_test_step
+	c
+	si
+	ipxe_assert ({char}($eip-1)) (char)0x90 "ipxe_test_step" # nop = 0x90
+end
+
+define ipxe_test_awatch
+	awatch watch_me
+
+	c
+	ipxe_assert $ecx 0x600d0000 "ipxe_test_awatch read"
+	if $ecx == 0x600d0000
+		c
+	end
+
+	c
+	ipxe_assert $ecx 0x600d0001 "ipxe_test_awatch write"
+	if $ecx == 0x600d0001
+		c
+	end
+
+	delete
+end
+
+define ipxe_test_watch
+	watch watch_me
+	c
+	ipxe_assert $ecx 0x600d0002 "ipxe_test_watch"
+	if $ecx == 0x600d0002
+		c
+	end
+	delete
+end
+
+ipxe_load_symbols
+ipxe_start_tests
+ipxe_test_regs_read
+ipxe_test_regs_write
+ipxe_test_mem_read
+ipxe_test_mem_write
+ipxe_test_step
+ipxe_test_awatch
+ipxe_test_watch