os-k-team/kvisc
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This commit is contained in:
julianb0 2019-08-08 18:39:12 +02:00
parent b890d67ff4
commit fa7e365b98
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GPG Key ID: 9C7ACF0C053FB8A1
24 changed files with 298 additions and 215 deletions
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22
as/k-as.py
View File

@ -437,6 +437,14 @@ pref2len = {
"q" : 8,
}
i_aliases = {
"j_1" : "jmp_1",
"m_2" : "mov_2",
"b_3" : "bch_3",
"inc_2" : "add_2",
"dec_2" : "sub_2",
}
def parse_instr(line):
if line == None or len(line) == 0:
return 0
@ -480,22 +488,20 @@ def parse_instr(line):
if params == None or len(params) == 0:
if b2 == 0:
instrs.write("{}".format(instr_name))
instrs.write("{}_0".format(instr_name))
else:
size += 1
instrs.write("%%suff {} %%imm8 {}".format(instr_name, b2))
instrs.write("%%suff {}_0 %%imm8 {}".format(instr_name, b2))
return size
tok = params.split(',')
# 'call' special case... temporary
if instr_name == 'call':
if len(tok) == 2:
instr_name = 'xcall2'
elif len(tok) == 3:
instr_name = 'xcall3'
instr_name += "_{}".format(len(tok))
if instr_name in i_aliases:
instr_name = i_aliases[instr_name]
#
# Parse operands

18
ka/crt/fmt/doprnt.k
View File

@ -9,12 +9,8 @@ doprnt:
push rbp
mov rbp, rsp
push r12
push r13
push r14
push r15
push r16
push r17
push r12, r13, r14
push r15, r16, r17
mov r12, ax2 ; fmt
mov r14, ax3 ; va_list
@ -145,13 +141,9 @@ doprnt:
.epilogue:
mov rax, r16
pop r17
pop r16
pop r15
pop r14
pop r13
pop r12
pop r17, r16, r15
pop r14, r13, r12
leave
ret

3
ka/crt/fmt/ltostr.k
View File

@ -53,9 +53,10 @@ ltostr:
.next:
mov b[ax0], rdx
inc ax0, 1
div ax1, ax1, ax2
div ax1, ax2
jmp .conv
; add minus flag, null-terminate and reverse

2
ka/crt/fmt/strtol.k
View File

@ -137,7 +137,7 @@ strtoq:
; too large for base?
b.ae rcx, ax1, .done
mul rax, rax, ax1
mul rax, ax1
inc rax, rcx
jmp .main_loop

4
ka/crt/lib/time.k
View File

@ -54,12 +54,12 @@ GetTimeUTC:
; minutes
div rcx, ax0, 60
rem rcx, rcx, 60
rem rcx, 60
mov b[rdx+1], rcx
; hours
div rcx, ax0, 3600
rem rcx, rcx, 24
rem rcx, 24
mov b[rdx+2], rcx
; month days

6
ka/sys/dumprf.k
View File

@ -5,8 +5,9 @@ dumprf:
push rbp
mov rbp, rsp
push r12
push r12, r13
mov r12, ax0
mov r13, rsp
call RFS.LoadReg, r12, $cr2
push rax
@ -113,7 +114,8 @@ dumprf:
call printf, .dmp6
pop r12
mov rsp, r13
pop r13, r12
leave
ret

28
ka/sys/intr/common.k
View File

@ -1,31 +1,6 @@
; The OS/K Team licenses this file to you under the MIT license.
; See the LICENSE file in the project root for more information.
TrapHandlers.prolog:
mov rbp, zero
; rax = caller's cr2
call RFS.LoadReg, r14, $cr2
; we don't preserve the r12 we got
mov r12, rax
mov rdx, zero
jmp rcx
TrapHandlers.epilog:
; TRAP return values: RAX-RDX
mov ax2, rax
call RFS.StoreReg, r14, $rax
mov ax2, rdx
call RFS.StoreReg, r14, $rdx
call IDT.DoneHandling, r13
iret
ScreenOfDeath:
push r12
mov r12, ax0
@ -51,8 +26,7 @@ ScreenOfDeath:
push .scr2_usr
.do_print:
push r14
push r12
push r14, r12
call printf, .scr2
inc rsp, 24

28
ka/sys/intr/trap0.k
View File

@ -1,6 +1,34 @@
; The OS/K Team licenses this file to you under the MIT license.
; See the LICENSE file in the project root for more information.
TrapHandlers.prolog:
mov rbp, zero
; rax = caller's cr2
call RFS.LoadReg, r14, $cr2
; we don't preserve the r12 we got
mov r12, rax
mov rdx, zero
jmp rcx
TrapHandlers.epilog:
; TRAP return values: RAX-RDX
mov ax2, rax
call RFS.StoreReg, r14, $rax
mov ax2, rdx
call RFS.StoreReg, r14, $rdx
call IDT.DoneHandling, r13
iret
;
; TRAP #0 handler
;
DefaultTrapHandler:
.init:

23
ka/usr/cmd/dir.k
View File

@ -7,10 +7,8 @@ builtins.dir:
push rbp
mov rbp, rsp
push r12
push r13
push r14
push r15
push r12, r13
push r14, r15
mov r12, zero # no. of files found
mov r13, zero # no. of directories found
@ -110,24 +108,19 @@ builtins.dir:
.end:
shr rax, r14, 10
shr rdx, rax, 10
and rax, rax, 1023
and r14, r14, 1023
and rax, 1023
and r14, 1023
push r14
push rax
push rdx
push r14, rax, rdx
call printf, .endstr0
inc rsp, 24
push r13
push r12
push r13, r12
call printf, .endstr1
inc rsp, 16
pop r15
pop r14
pop r13
pop r12
pop r15, r14
pop r13, r12
leave
ret

23
ka/usr/cmd/main.k
View File

@ -211,12 +211,10 @@ main:
.handle_DATE:
call GetTimeUTC
push b[rax+3]
mov rcx, b[rax+4]
inc rcx, 1
push rcx
push w[rax+6]
push b[rax+3], rcx, w[rax+6]
call printf, .datefmt
inc rsp, 40
@ -322,9 +320,7 @@ main:
.handle_TIME:
call GetTimeUTC
push b[rax]
push b[rax+1]
push b[rax+2]
push b[rax], b[rax+1], b[rax+2]
call printf, .timefmt
inc rsp, 24
@ -383,8 +379,7 @@ main:
.cnf_errmsg = ": command not found\n"
.file_not_found:
push q[argv1pos]
push argv0
push q[argv1pos], argv0
call printf, .fnf_errmsg
inc rsp, 16
@ -393,8 +388,7 @@ main:
.fnf_errmsg = "%s: %s: file not found\n"
.empty_file:
push q[argv1pos]
push argv0
push q[argv1pos], argv0
call printf, .ef_errmsg
inc rsp, 16
@ -403,8 +397,7 @@ main:
.ef_errmsg = "%s: %s: file was empty\n"
.couldnt_open:
push q[argv1pos]
push argv0
push q[argv1pos], argv0
call printf, .cno_errmsg
inc rsp, 16
@ -413,8 +406,7 @@ main:
.cno_errmsg = "%s: %s: an error occured while opening file\n"
.couldnt_remove:
push q[argv1pos]
push argv0
push q[argv1pos], argv0
call printf, .cne_errmsg
inc rsp, 16
@ -423,8 +415,7 @@ main:
.cne_errmsg = "%s: %s: an error occured while removing file\n"
.couldnt_read:
push q[argv1pos]
push argv0
push q[argv1pos], argv0
call printf, .cnr_errmsg
inc rsp, 16

16
vm/in/ALU
View File

@ -12,6 +12,7 @@
#
# Preserves all flags
#
or 2
or 3
#
@ -21,6 +22,7 @@ or 3
#
# Preserves all flags
#
and 2
and 3
#
@ -30,6 +32,7 @@ and 3
#
# Preserves all flags
#
xor 2
xor 3
#
@ -40,7 +43,9 @@ xor 3
#
# Preserves all flags
#
shl 2
shl 3
shr 2
shr 3
#
@ -50,6 +55,7 @@ shr 3
#
# Preserves all flags
#
sar 2
sar 3
#---------------------------------------------------------------------------#
@ -76,7 +82,7 @@ cmp 2
# Sets OF is signed integer overflow occur, clears it otherwise
# Sets ZF and SF according to the result
#
inc 2
add 2
add 3
addf 3
@ -89,7 +95,7 @@ addf 3
# Sets OF is signed integer overflow occur, clears it otherwise
# Sets ZF and SF according to the result
#
dec 2
sub 2
sub 3
subf 3
@ -103,7 +109,9 @@ subf 3
# Sets OF is signed integer overflow occur, clears it otherwise
# Sets ZF and SF according to the result
#
adcx 2
adcx 3
sbbx 2
sbbx 3
#
@ -114,6 +122,7 @@ sbbx 3
# Preserves ZF and SF
# Sets CF and OF if HI($src1 * $src2) > 0, clears them otherwise
#
mul 2
mul 3
mulf 3
@ -142,6 +151,7 @@ imulhi 3
#
# Preserves all flags
#
div 2
div 3
#
@ -151,6 +161,7 @@ div 3
#
# Preserves all flags
#
idiv 2
idiv 3
#
@ -160,5 +171,6 @@ idiv 3
#
# Preserves all flags
#
rem 2
rem 3

13
vm/in/MEM
View File

@ -23,7 +23,7 @@ jmp 1
loop 1
#
# Conditional absolute jumps (B)
# Conditional absolute jumps (branches) (BCH)
#
# COMPARE(SignExtend($1), $2)
#
@ -38,7 +38,7 @@ loop 1
#
# Suffixing B with the REP suffix results in undefined behavior
#
b 3
bch 3
#---------------------------------------------------------------------------#
@ -52,8 +52,8 @@ b 3
# JMP(RIP)
#
call 1
xcall2 2
xcall3 3
call 2
call 3
#
# Return to caller (RET)
@ -69,6 +69,7 @@ ret
# RBP = RSP
# RSP = RSP - $1
#
enter
enter 1
#
@ -86,6 +87,8 @@ leave
# *RSP = $1
#
push 1
push 2
push 3
#
# POP value from stack
@ -94,6 +97,8 @@ push 1
# RSP = RSP + 8
#
pop 1
pop 2
pop 3
#---------------------------------------------------------------------------#
# Movement instructions #

2
vm/in/MISC
View File

@ -43,7 +43,7 @@ into
#
# Get timestamp in µseconds
#
utime 2
utime 1
#
# $1 = seconds since start of month

112
vm/in/alu.c
View File

@ -8,30 +8,46 @@
//----------------------------------------------------------------------------//
IMPL_START(or) { SRCP(p2); SRCP(p3); *r1 = p2->val | p3->val; return 1; }
IMPL_START(and) { SRCP(p2); SRCP(p3); *r1 = p2->val & p3->val; return 1; }
IMPL_START(xor) { SRCP(p2); SRCP(p3); *r1 = p2->val ^ p3->val; return 1; }
IMPL_START(or, 2) { SRCP(p1); SRCP(p2); *r1 = p1->val | p2->val; return 1; }
IMPL_START(and, 2) { SRCP(p1); SRCP(p2); *r1 = p1->val & p2->val; return 1; }
IMPL_START(xor, 2) { SRCP(p1); SRCP(p2); *r1 = p1->val ^ p2->val; return 1; }
IMPL_START(or, 3) { SRCP(p2); SRCP(p3); *r1 = p2->val | p3->val; return 1; }
IMPL_START(and, 3) { SRCP(p2); SRCP(p3); *r1 = p2->val & p3->val; return 1; }
IMPL_START(xor, 3) { SRCP(p2); SRCP(p3); *r1 = p2->val ^ p3->val; return 1; }
//----------------------------------------------------------------------------//
IMPL_START(shl) { SRCP(p2); SRCP(p3); *r1 = p2->val << p3->val; return 1; }
IMPL_START(shr) { SRCP(p2); SRCP(p3); *r1 = p2->val >> p3->val; return 1; }
IMPL_START(sar) { SRCP(p2); SRCP(p3); *r1 = (ulong)((long)p2->val >> (long)p3->val); return 1; }
IMPL_START(shl, 2) { SRCP(p1); SRCP(p2); *r1 = p1->val << p2->val; return 1; }
IMPL_START(shr, 2) { SRCP(p1); SRCP(p2); *r1 = p1->val >> p2->val; return 1; }
IMPL_START(sar, 2) { SRCP(p1); SRCP(p2); *r1 = (ulong)((long)p1->val >> (long)p2->val); return 1; }
IMPL_START(shl, 3) { SRCP(p2); SRCP(p3); *r1 = p2->val << p3->val; return 1; }
IMPL_START(shr, 3) { SRCP(p2); SRCP(p3); *r1 = p2->val >> p3->val; return 1; }
IMPL_START(sar, 3) { SRCP(p2); SRCP(p3); *r1 = (ulong)((long)p2->val >> (long)p3->val); return 1; }
//----------------------------------------------------------------------------//
IMPL_START(inc) { SRCP(p1); SRCP(p2); *r1 = p1->val + p2->val; return 1; }
IMPL_START(add) { SRCP(p2); SRCP(p3); *r1 = p2->val + p3->val; return 1; }
IMPL_START(addf) { SRCP(p2); SRCP(p3); COMPARE_ADD(p2->val, p3->val); *r1 = p2->val + p3->val; return 1; }
IMPL_START(add, 2) { SRCP(p1); SRCP(p2); *r1 = p1->val + p2->val; return 1; }
IMPL_START(add, 3) { SRCP(p2); SRCP(p3); *r1 = p2->val + p3->val; return 1; }
IMPL_START(addf, 3) { SRCP(p2); SRCP(p3); COMPARE_ADD(p2->val, p3->val); *r1 = p2->val + p3->val; return 1; }
IMPL_START(dec) { SRCP(p1); SRCP(p2); *r1 = p1->val - p2->val; return 1; }
IMPL_START(sub) { SRCP(p2); SRCP(p3); *r1 = p2->val - p3->val; return 1; }
IMPL_START(subf) { SRCP(p2); SRCP(p3); COMPARE_SUB(p2->val, p3->val); *r1 = p2->val - p3->val; return 1; }
IMPL_START(sub, 2) { SRCP(p1); SRCP(p2); *r1 = p1->val - p2->val; return 1; }
IMPL_START(sub, 3) { SRCP(p2); SRCP(p3); *r1 = p2->val - p3->val; return 1; }
IMPL_START(subf, 3) { SRCP(p2); SRCP(p3); COMPARE_SUB(p2->val, p3->val); *r1 = p2->val - p3->val; return 1; }
IMPL_START(adcx)
{
SRCP(p2);
SRCP(p3);
IMPL_START(adcx, 2) {
SRCP(p1); SRCP(p2);
p2->val += !!(R(RFX)&CF);
COMPARE_ADD(p1->val, p2->val);
*r1 = p1->val + p2->val;
return 1;
}
IMPL_START(adcx, 3) {
SRCP(p2); SRCP(p3);
p3->val += !!(R(RFX)&CF);
COMPARE_ADD(p2->val, p3->val);
@ -40,10 +56,18 @@ IMPL_START(adcx)
return 1;
}
IMPL_START(sbbx)
{
SRCP(p2);
SRCP(p3);
IMPL_START(sbbx, 2) {
SRCP(p1); SRCP(p2);
p2->val += !!(R(RFX)&CF);
COMPARE_SUB(p1->val, p2->val);
*r1 = p1->val - p2->val;
return 1;
}
IMPL_START(sbbx, 3) {
SRCP(p2); SRCP(p3);
p3->val += !!(R(RFX)&CF);
COMPARE_SUB(p2->val, p3->val);
@ -54,29 +78,43 @@ IMPL_START(sbbx)
//----------------------------------------------------------------------------//
IMPL_START(mul) { SRCP(p2); SRCP(p3); *r1 = p2->val * p3->val; return 1; }
IMPL_START(rem) { SRCP(p2); SRCP(p3); *r1 = p2->val % p3->val; return 1; }
IMPL_START(mul, 2) { SRCP(p1); SRCP(p2); *r1 = p1->val * p2->val; return 1; }
IMPL_START(mul, 3) { SRCP(p2); SRCP(p3); *r1 = p2->val * p3->val; return 1; }
IMPL_START(div)
{
SRCP(p2);
SRCP(p3);
IMPL_START(rem, 2) { SRCP(p1); SRCP(p2); *r1 = p1->val % p2->val; return 1; }
IMPL_START(rem, 3) { SRCP(p2); SRCP(p3); *r1 = p2->val % p3->val; return 1; }
if (!p3->val)
_except(E_DIV, "DIV by 0");
IMPL_START(div, 2) {
SRCP(p1); SRCP(p2);
if (!p2->val) _except(E_DIV, "DIV by 0");
*r1 = p1->val / p2->val;
return 1;
}
IMPL_START(div, 3) {
SRCP(p2); SRCP(p3);
if (!p3->val) _except(E_DIV, "DIV by 0");
*r1 = p2->val / p3->val;
return 1;
}
IMPL_START(idiv)
{
SRCP(p2);
SRCP(p3);
IMPL_START(idiv, 2) {
SRCP(p1); SRCP(p2);
if (!p3->val)
_except(E_DIV, "IDIV by 0");
if (!p3->val) _except(E_DIV, "IDIV by 0");
*r1 = (ulong)((long)p1->val/(long)p2->val);
return 1;
}
IMPL_START(idiv, 3) {
SRCP(p2); SRCP(p3);
if (!p3->val) _except(E_DIV, "IDIV by 0");
*r1 = (ulong)((long)p2->val/(long)p3->val);
return 1;
@ -92,7 +130,7 @@ static void __unsigned_multiply128(ulong u, ulong v, ulong *hi, ulong *lo)
*lo = r;
}
IMPL_START(mulhi)
IMPL_START(mulhi, 3)
{
SRCP(p2);
SRCP(p3);
@ -101,7 +139,7 @@ IMPL_START(mulhi)
return 2;
}
IMPL_START(mulf)
IMPL_START(mulf, 3)
{
SRCP(p2);
SRCP(p3);
@ -123,7 +161,7 @@ static void __signed_multiply128(ulong u, ulong v, ulong *hi, ulong *lo)
*lo = r;
}
IMPL_START(imulhi)
IMPL_START(imulhi, 3)
{
SRCP(p2);
SRCP(p3);

12
vm/in/arch_i.py
View File

@ -47,15 +47,15 @@ def parse_2(fp):
assert(len(tok) == 2)
n = tok[1]
ls.write("{}{}\n".format(deprecated, tok[0]))
ls.write("{}{}_{}\n".format(deprecated, tok[0], n))
hd.write("#ifdef _NEED_ARCH_I\n")
hd.write('{{ "{}{}", {}, i_{} }},\n'\
.format(deprecated, tok[0], n, tok[0]))
hd.write('{{ "{}{}", {}, i_{}_{} }},\n'\
.format(deprecated, tok[0], n, tok[0], n))
hd.write("#else\n")
hd.write("#define I_{} {}\n".format(tok[0].upper(), count))
hd.write("extern bool i_{}(acc_t *, acc_t *, acc_t *, ulong *, ulong *, ulong *);\n"
.format(tok[0]))
hd.write("#define I_{}_{} {}\n".format(tok[0].upper(), n, count))
hd.write("extern bool i_{}_{}(acc_t *, acc_t *, acc_t *, ulong *, ulong *, ulong *);\n"
.format(tok[0], n))
hd.write("#endif\n\n")
count = count + 1

4
vm/in/instrs.h
View File

@ -5,8 +5,8 @@
//----------------------------------------------------------------------------//
#define IMPL_START(name) \
uint i_##name(acc_t *p1, acc_t *p2, acc_t *p3, \
#define IMPL_START(name, n) \
uint i_##name##_##n(acc_t *p1, acc_t *p2, acc_t *p3, \
ulong *r1, ulong *r2, ulong *r3) \
#define XSRCP(v, p, x) \

102
vm/in/mem.c
View File

@ -5,9 +5,9 @@
//----------------------------------------------------------------------------//
IMPL_START(jmp) { R(RIP) = p1->val; return 0; }
IMPL_START(jmp, 1) { R(RIP) = p1->val; return 0; }
IMPL_START(loop) {
IMPL_START(loop, 1) {
if (R(RCX) > 0) {
R(RCX)--;
R(RIP) = p1->val;
@ -15,7 +15,7 @@ IMPL_START(loop) {
return 0;
}
IMPL_START(b)
IMPL_START(bch, 3)
{
SRCP(p1);
SRCP(p2);
@ -28,7 +28,7 @@ IMPL_START(b)
return 0;
}
IMPL_START(cmp)
IMPL_START(cmp, 2)
{
SRCP(p1);
@ -39,15 +39,15 @@ IMPL_START(cmp)
//----------------------------------------------------------------------------//
IMPL_START(lea) { *r1 = p2->addr; return 1; }
IMPL_START(mov) { XSRCP(*r1, p2, sx); return 1; }
IMPL_START(movzx) { XSRCP(*r1, p2, zx); return 1; }
IMPL_START(lea, 2) { *r1 = p2->addr; return 1; }
IMPL_START(mov, 2) { XSRCP(*r1, p2, sx); return 1; }
IMPL_START(movzx, 2) { XSRCP(*r1, p2, zx); return 1; }
IMPL_START(movsxb) { SRCP(p2); *r1 = (ulong)(long)(char)p2->val; return 1; }
IMPL_START(movsxw) { SRCP(p2); *r1 = (ulong)(long)(short)p2->val; return 1; }
IMPL_START(movsxd) { SRCP(p2); *r1 = (ulong)(long)(int)p2->val; return 1; }
IMPL_START(movsxb, 2) { SRCP(p2); *r1 = (ulong)(long)(char)p2->val; return 1; }
IMPL_START(movsxw, 2) { SRCP(p2); *r1 = (ulong)(long)(short)p2->val; return 1; }
IMPL_START(movsxd, 2) { SRCP(p2); *r1 = (ulong)(long)(int)p2->val; return 1; }
IMPL_START(xchg)
IMPL_START(xchg, 2)
{
SRCP(p1);
SRCP(p2);
@ -60,11 +60,7 @@ IMPL_START(xchg)
//----------------------------------------------------------------------------//
//
// Stack manipulation instructions
//
IMPL_START(push)
IMPL_START(push, 1)
{
XSRCP(p1->val, p1, zx);
@ -74,7 +70,35 @@ IMPL_START(push)
return 0;
}
IMPL_START(pop)
IMPL_START(push, 2)
{
XSRCP(p1->val, p1, zx);
XSRCP(p2->val, p2, zx);
R(RSP) -= 16;
writemem(p1->val, R(RSP) + 8, 8);
writemem(p2->val, R(RSP) + 0, 8);
return 0;
}
IMPL_START(push, 3)
{
XSRCP(p1->val, p1, zx);
XSRCP(p2->val, p2, zx);
XSRCP(p3->val, p3, zx);
R(RSP) -= 24;
writemem(p1->val, R(RSP) + 16, 8);
writemem(p2->val, R(RSP) + 8, 8);
writemem(p3->val, R(RSP) + 0, 8);
return 0;
}
//----------------------------------------------------------------------------//
IMPL_START(pop, 1)
{
*r1 = readmemzx(R(RSP), 8);
R(RSP) += 8;
@ -82,7 +106,28 @@ IMPL_START(pop)
return 1;
}
IMPL_START(call)
IMPL_START(pop, 2)
{
*r1 = readmemzx(R(RSP) + 0, 8);
*r2 = readmemzx(R(RSP) + 8, 8);
R(RSP) += 16;
return 2;
}
IMPL_START(pop, 3)
{
*r1 = readmemzx(R(RSP) + 0, 8);
*r2 = readmemzx(R(RSP) + 8, 8);
*r3 = readmemzx(R(RSP) + 16, 8);
R(RSP) += 24;
return 3;
}
//----------------------------------------------------------------------------//
IMPL_START(call, 1)
{
SRCP(p1);
@ -93,7 +138,7 @@ IMPL_START(call)
return 0;
}
IMPL_START(xcall2)
IMPL_START(call, 2)
{
SRCP(p1);
SRCP(p2);
@ -107,7 +152,7 @@ IMPL_START(xcall2)
return 0;
}
IMPL_START(xcall3)
IMPL_START(call, 3)
{
SRCP(p1);
SRCP(p2);
@ -123,7 +168,9 @@ IMPL_START(xcall3)
return 0;
}
IMPL_START(ret)
//----------------------------------------------------------------------------//
IMPL_START(ret, 0)
{
R(RIP) = readmemzx(R(RSP), 8);
R(RSP) += 8;
@ -131,7 +178,16 @@ IMPL_START(ret)
return 0;
}
IMPL_START(enter)
IMPL_START(enter, 0)
{
R(RSP) -= 8;
writemem(R(RBP), R(RSP), 8);
R(RBP) = R(RSP);
return 0;
}
IMPL_START(enter, 1)
{
writemem(R(RBP), R(RSP) - 8, 8);
R(RBP) = R(RSP) - 8;
@ -140,7 +196,7 @@ IMPL_START(enter)
return 0;
}
IMPL_START(leave)
IMPL_START(leave, 0)
{
R(RSP) = R(RBP) + 8;
R(RBP) = readmemzx(R(RBP), 8);

28
vm/in/misc.c
View File

@ -9,13 +9,13 @@
//----------------------------------------------------------------------------//
IMPL_START(into) { INTO(); return 0; }
IMPL_START(pause) { usleep(5000); return 0; }
IMPL_START(udf) { _except(E_UDF, "UDF instruction"); }
IMPL_START(into, 0) { INTO(); return 0; }
IMPL_START(pause, 0) { usleep(5000); return 0; }
IMPL_START(udf, 0) { _except(E_UDF, "UDF instruction"); }
//----------------------------------------------------------------------------//
IMPL_START(break)
IMPL_START(break, 0)
{
#ifndef NDEBUG
trace("\nExecuting BREAK INSTR\n");
@ -28,7 +28,7 @@ IMPL_START(break)
return 0;
}
IMPL_START(dump)
IMPL_START(dump, 0)
{
#ifndef NDEBUG
if (ctx->dumpsw)
@ -44,7 +44,7 @@ IMPL_START(dump)
//----------------------------------------------------------------------------//
IMPL_START(ytime)
IMPL_START(ytime, 3)
{
time_t t = time(NULL);
struct tm *tm = localtime(&t);
@ -59,7 +59,7 @@ IMPL_START(ytime)
return 3;
}
IMPL_START(utime)
IMPL_START(utime, 1)
{
struct timeval time;
gettimeofday(&time, NULL);
@ -70,7 +70,7 @@ IMPL_START(utime)
//----------------------------------------------------------------------------//
IMPL_START(cls)
IMPL_START(cls, 0)
{
R(RFX) = 0;
for (int i = RAX; i <= R20; i++) R(i) = 0;
@ -80,7 +80,7 @@ IMPL_START(cls)
//----------------------------------------------------------------------------//
IMPL_START(bswap)
IMPL_START(bswap, 2)
{
SRCP(p2);
@ -98,7 +98,7 @@ IMPL_START(bswap)
return 1;
}
IMPL_START(wswap)
IMPL_START(wswap, 2)
{
SRCP(p2);
@ -112,7 +112,7 @@ IMPL_START(wswap)
return 1;
}
IMPL_START(dswap)
IMPL_START(dswap, 2)
{
SRCP(p2);
@ -128,7 +128,7 @@ IMPL_START(dswap)
#define PRN_CLEAR_MAGIC 0x8BF00001
#define PRN_FLUSH_MAGIC 0x8BF00002
IMPL_START(prn)
IMPL_START(prn, 1)
{
SRCP(p1);
@ -158,7 +158,7 @@ IMPL_START(prn)
return 0;
}
IMPL_START(prns)
IMPL_START(prns, 1)
{
if (p1->type != A_REG)
_except(E_ILL, "PRNS given a non-REG operand");
@ -180,7 +180,7 @@ IMPL_START(prns)
return 0;
}
IMPL_START(scan)
IMPL_START(scan, 1)
{
*r1 = console_scankeybuf();

16
vm/in/string.c
View File

@ -20,10 +20,10 @@ static void stos_impl(acc_t *p1, acc_t *p2, uint len)
STR_MOVE(p1->reg, len);
}
IMPL_START(stosb) { stos_impl(p1, p2, 1); return 0; }
IMPL_START(stosw) { stos_impl(p1, p2, 2); return 0; }
IMPL_START(stosd) { stos_impl(p1, p2, 4); return 0; }
IMPL_START(stosq) { stos_impl(p1, p2, 8); return 0; }
IMPL_START(stosb, 2) { stos_impl(p1, p2, 1); return 0; }
IMPL_START(stosw, 2) { stos_impl(p1, p2, 2); return 0; }
IMPL_START(stosd, 2) { stos_impl(p1, p2, 4); return 0; }
IMPL_START(stosq, 2) { stos_impl(p1, p2, 8); return 0; }
//----------------------------------------------------------------------------//
@ -44,10 +44,10 @@ static void scas_impl(acc_t *p1, acc_t *p2, uint len)
}
}
IMPL_START(scasb) { scas_impl(p1, p2, 1); return 0; }
IMPL_START(scasw) { scas_impl(p1, p2, 2); return 0; }
IMPL_START(scasd) { scas_impl(p1, p2, 4); return 0; }
IMPL_START(scasq) { scas_impl(p1, p2, 8); return 0; }
IMPL_START(scasb, 2) { scas_impl(p1, p2, 1); return 0; }
IMPL_START(scasw, 2) { scas_impl(p1, p2, 2); return 0; }
IMPL_START(scasd, 2) { scas_impl(p1, p2, 4); return 0; }
IMPL_START(scasq, 2) { scas_impl(p1, p2, 8); return 0; }
//----------------------------------------------------------------------------//

18
vm/in/super.c
View File

@ -31,20 +31,20 @@ void do_hlt()
//----------------------------------------------------------------------------//
IMPL_START(hlt) { CHK_SUPERV(); do_hlt(); return 0; }
IMPL_START(stop) { CHK_SUPERV(); _except(E_SHT, "STOP INSTR"); }
IMPL_START(crash) { CHK_SUPERV(); _except(1023, "CRASH instruction"); }
IMPL_START(hlt, 0) { CHK_SUPERV(); do_hlt(); return 0; }
IMPL_START(stop, 0) { CHK_SUPERV(); _except(E_SHT, "STOP INSTR"); }
IMPL_START(crash, 0) { CHK_SUPERV(); _except(1023, "CRASH instruction"); }
//----------------------------------------------------------------------------//
IMPL_START(trap)
IMPL_START(trap, 1)
{
if (p1->val > 255) _except(E_ILL, "TRAP number greater than 255");
_except(p1->val + 256, "TRAP instruction");
}
IMPL_START(iret) {
IMPL_START(iret, 0) {
if (ctx->dumpsw)
trace("\nReturning from exception #%ld\n\n", R(R13));
@ -56,8 +56,8 @@ IMPL_START(iret) {
return 0;
}
IMPL_START(cli) { CHK_SUPERV(); R(CR0) &= ~IF; return 0; }
IMPL_START(sti) { CHK_SUPERV(); R(CR0) |= IF; return 0; }
IMPL_START(cli, 0) { CHK_SUPERV(); R(CR0) &= ~IF; return 0; }
IMPL_START(sti, 0) { CHK_SUPERV(); R(CR0) |= IF; return 0; }
//----------------------------------------------------------------------------//
@ -76,7 +76,7 @@ dev_t *devctl_common(ulong idx)
return NULL;
}
IMPL_START(devctl)
IMPL_START(devctl, 2)
{
CHK_SUPERV();
@ -98,7 +98,7 @@ IMPL_START(devctl)
return 0;
}
IMPL_START(iocall)
IMPL_START(iocall, 2)
{
CHK_SUPERV();

2
vm/pc/decode.c
View File

@ -199,6 +199,8 @@ void decode(void)
ushort b1, b2, rep = 0, lock;
acc_t p1 = { 0 }, p2 = { 0 }, p3 = { 0 };
//logerr("decodin'\n");
ctx->cur_pc = R(RIP);
// Address range check

2
vm/pc/exec.c
View File

@ -66,7 +66,7 @@ void exec_instr(instr_t *in,
// For REPs we evaluate the condition AFTER running the instruction,
// in a do ... while(cond) fashion
//
if (ctx->cond && in->func != i_b) // 'B' instruction is special
if (ctx->cond && in->func != i_bch_3) // 'B' instruction is special
if (!rep && !eval_cond(ctx->cond))
return;

27
vm/pc/main.c
View File

@ -13,21 +13,10 @@ static ushort *fwprog;
ctx_t main_ctx;
void sigcommon(void)
{
_except(E_BRK, "SIGNAL'ed");
}
void sigcommon(void) { _except(E_BRK, "SIGNAL'ed"); }
void sigint(int _) { sigcommon(); }
void sigint(int _)
{
sigcommon();
}
void sigsegv(int _)
{
logerr("Segmentation fault\n");
sigcommon();
}
void sigsegv(int _) { logerr("\nCaught: Segmentation fault\n\n"); dumpregs(); die(1); }
jmp_buf exc_jmp_buf;
@ -38,16 +27,12 @@ void main_loop(void)
{
setjmp(exc_jmp_buf);
//
// Start decoding
//
while (!dying) {
// Execute one instruction
decode();
console_update();
}
die(0);
}
@ -55,13 +40,13 @@ int main(int argc, char **argv)
{
FILE *fwfile;
main_ctx.r = arch_r;
main_ctx.i = arch_i;
#if 0 && !defined(NDEBUG)
main_ctx.dumpsw = 1;
#endif
main_ctx.r = arch_r;
main_ctx.i = arch_i;
//
// srand
//

2
vm/pc/mem.c
View File

@ -162,8 +162,6 @@ void writemem(ulong val, ulong addr, uint len)
GETREAL();
CHK_RANGE();
// log("writemem: 0x%lX: 0x%lX (%d)\n", addr, val, len);
switch (len) {
case 1: writemem8(val, real, addr); break;
case 2: writemem16(val, real, addr); break;