Delete some dead code

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Justine Tunney 2024-01-01 00:11:45 -08:00
parent 9e6faa5256
commit 2f89c2482a
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GPG key ID: BE714B4575D6E328
12 changed files with 0 additions and 505 deletions

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@ -168,7 +168,6 @@ o/$(MODE)/ape/ape-no-modify-self.o: \
libc/macros.internal.h \
libc/nexgen32e/uart.internal.h \
libc/calls/metalfile.internal.h \
libc/nexgen32e/vidya.internal.h \
libc/nt/pedef.internal.h \
libc/runtime/e820.internal.h \
libc/runtime/mman.internal.h \
@ -199,7 +198,6 @@ o/$(MODE)/ape/ape-copy-self.o: \
libc/macros.internal.h \
libc/nexgen32e/uart.internal.h \
libc/calls/metalfile.internal.h \
libc/nexgen32e/vidya.internal.h \
libc/nt/pedef.internal.h \
libc/runtime/e820.internal.h \
libc/runtime/mman.internal.h \

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@ -22,119 +22,6 @@
#ifdef __ASSEMBLER__
/* clang-format off */
/**
* @fileoverview Macros relevant to αcτµαlly pδrταblε εxεcµταblε.
*/
// Calls near (i.e. pc+pcrel<64kB) FUNCTION.
// @mode long,legacy,real
// @cost 9 bytes overhead
.macro rlcall function:req
.byte 0x50 # push %[er]ax
.byte 0xb8,0,0 # mov $?,%[e]ax
jmp 911f
.byte 0x58 # pop %[er]ax
.byte 0xe8 # call Jvds
.long \function\()-.-4
jmp 912f
911: .byte 0x58 # pop %[er]ax
.byte 0xe8 # call Jvds
.short \function\()-.-2
912:
.endm
// Loads far (i.e. <1mb) abs constexpr ADDRESS into ES:DI+EDX+RDX.
// @mode long,legacy,real
.macro movesdi address:req
.byte 0xbf # mov $0x????xxxx,%[e]di
.short \address>>4
.byte 0x8e,0xc7 # mov %di,%es
.byte 0xbf # mov $0x????xxxx,%[e]di
.short \address&0xf
jmp 297f
.byte 0xbf # mov $0x????xxxx,%edi
.long \address
297:
.endm
// Loads 16-bit CONSTEXPR into Qw-register w/ optional zero-extend.
// @mode long,legacy,real
.macro bbmov constexpr:req abcd abcd.hi:req abcd.lo:req
.ifnb \abcd
.if (\constexpr)<128 && (\constexpr)>=0
pushpop \constexpr,\abcd
.exitm
.endif
.endif
movb $(\constexpr)>>8&0xff,\abcd.hi
movb $(\constexpr)&0xff,\abcd.lo
.endm
// Compares 16-bit CONSTEXPR with Qw-register.
// @mode long,legacy,real
.macro bbcmp constexpr:req abcd.hi:req abcd.lo:req
cmpb $(\constexpr)>>8&0xff,\abcd.hi
jnz 387f
cmpb $(\constexpr)&0xff,\abcd.lo
387:
.endm
// Adds 16-bit CONSTEXPR to Qw-register.
// @mode long,legacy,real
.macro bbadd constexpr:req abcd.hi:req abcd.lo:req
addb $(\constexpr)&0xff,\abcd.lo
.if (\constexpr) != 0
adcb $(\constexpr)>>8&0xff,\abcd.hi
.endif
.endm
// Subtracts 16-bit CONSTEXPR from Qw-register.
// @mode long,legacy,real
.macro bbsub constexpr:req abcd.hi:req abcd.lo:req
subb $(\constexpr)&0xff,\abcd.lo
.if (\constexpr) != 0
sbbb $(\constexpr)>>8&0xff,\abcd.hi
.endif
.endm
// Ands Qw-register with 16-bit CONSTEXPR.
// @mode long,legacy,real
.macro bband constexpr:req abcd.hi:req abcd.lo:req
.if ((\constexpr)&0xff) != 0xff || ((\constexpr)>>8&0xff) == 0xff
andb $(\constexpr)&0xff,\abcd.lo
.endif
.if ((\constexpr)>>8&0xff) != 0xff
andb $(\constexpr)>>8&0xff,\abcd.hi
.endif
.endm
// Ors Qw-register with 16-bit CONSTEXPR.
// @mode long,legacy,real
.macro bbor constexpr:req abcd.hi:req abcd.lo:req
.if ((\constexpr)&0xff) != 0 || ((\constexpr)>>8&0xff) != 0
orb $(\constexpr)&0xff,\abcd.lo
.endif
.if ((\constexpr)>>8&0xff) != 0
orb $(\constexpr)>>8&0xff,\abcd.hi
.endif
.endm
// Performs ACTION only if in real mode.
// @mode long,legacy,real
.macro rlo clobber:req action:vararg
990: mov $0,\clobber
.if .-990b!=3
.error "bad clobber or assembler mode"
.endif
991: \action
.rept 2-(.-991b)
nop
.endr
.if .-991b!=2
.error "ACTION must be 1-2 bytes"
.endif
.endm
// Initializes real mode stack.
// The most holiest of holy code.
// @mode real

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@ -10,11 +10,6 @@
#define lz4decode __lz4decode
COSMOPOLITAN_C_START_
#if 0
/*───────────────────────────────────────────────────────────────────────────│─╗
cosmopolitan § standard library » compression
*/
#endif
struct RlDecode {
uint8_t repititions;

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@ -1,11 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_NEXGEN32E_MACROS_H_
#define COSMOPOLITAN_LIBC_NEXGEN32E_MACROS_H_
#ifdef __ASSEMBLER__
#include "libc/nexgen32e/macros.internal.inc"
#else
/* let's give auto-import tooling a helping hand */
#define pbroadcastb pbroadcastb
#endif /* __ASSEMBLER__ */
#endif /* COSMOPOLITAN_LIBC_NEXGEN32E_MACROS_H_ */

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@ -1,89 +0,0 @@
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-
vi: set noet ft=asm ts=8 sw=8 fenc=utf-8 :vi
╞══════════════════════════════════════════════════════════════════════════════╡
Copyright 2020 Justine Alexandra Roberts Tunney
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted, provided that the
above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.internal.h"
#include "libc/nexgen32e/x86feature.h"
// Broadcast byte literal to vector, e.g.
//
// # xmm0=0x12121212121212121212121212121212
// .bcblit $0x12,%al,%eax,%xmm0
//
// @param reg and regSI need to be the same register
.macro .bcblit lit:req reg:req regSI:req xmm:req
mov \lit,\reg
movd \regSI,\xmm
pbroadcastb \xmm
.endm
// Broadcast word literal to vector, e.g.
//
// # xmm0=0x01230123012301230123012301230123
// .bcwlit $0x123,%ax,%eax,%xmm0
//
// @param reg and regSI need to be the same register
.macro .bcwlit lit:req reg:req regSI:req xmm:req
mov \lit,\reg
movd \regSI,\xmm
pbroadcastw \xmm
.endm
// Broadcast int16 from register to vector.
.macro .bcwreg regSI:req xmm:req
movd \regSI,\xmm
pbroadcastw \xmm
.endm
// Sets all bytes in XMM register to first byte, e.g.
//
// mov $0x11,%eax
// movd %eax,%xmm0
// pbroadcastb %xmm0
//
// 11000000000000000000000000000000
// → 11111111111111111111111111111111
//
// @param xmm can be %xmm0,%xmm1,etc.
.macro pbroadcastb xmm:req
#if X86_NEED(AVX2)
vpbroadcastb \xmm,\xmm
#else
punpcklbw \xmm,\xmm
punpcklwd \xmm,\xmm
pshufd $0,\xmm,\xmm
#endif
.endm
// Sets all words in XMM register to first word, e.g.
//
// mov $0x1234,%eax
// movd %eax,%xmm0
// pbroadcastw %xmm0
//
// 12340000000000000000000000000000
// → 12341234123412341234123412341234
//
// @param xmm can be %xmm0,%xmm1,etc.
.macro pbroadcastw xmm:req
#if X86_NEED(AVX2)
vpbroadcastw \xmm,\xmm
#else
punpcklwd \xmm,\xmm
pshufd $0,\xmm,\xmm
#endif
.endm

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@ -1,54 +0,0 @@
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-
vi: set noet ft=asm ts=8 sw=8 fenc=utf-8 :vi
╞══════════════════════════════════════════════════════════════════════════════╡
Copyright 2020 Justine Alexandra Roberts Tunney
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted, provided that the
above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
╚─────────────────────────────────────────────────────────────────────────────*/
// Documentation for Intel(R)'s “Most Complicated Instruction”(TM)
//
// mnemonic op1 op2 op3 op4 modif f description, notes
// ═══════════ ════ ════ ════ ═══ ════════ ═════════════════════════════
// PCMPESTRM XMM0 Vdq Wdq ... o..szapc Explicit Length, Return Mask
// PCMPESTRI rCX Vdq Wdq ... o..szapc Explicit Length, Return Index
// PCMPISTRM XMM0 Vdq Wdq Ib o..szapc Implicit Length, Return Mask
// PCMPISTRI rCX Vdq Wdq Ib o..szapc Implicit Length, Return Index
//
// CF ← Reset if IntRes2 is equal to zero, set otherwise
// ZF ← Set if any byte/word of xmm2/mem128 is null, reset otherwise
// SF ← Set if any byte/word of xmm1 is null, reset otherwise
// OF ← IntRes2[0]
// AF ← Reset
// PF ← Reset
//
// PCMP{E,I}STR{I,M} Control Byte
// @see Intel Manual V.2B §4.1.7
//
// ┌─0:index of the LEAST significant, set, bit is used
// │ regardless of corresponding input element validity
// │ intres2 is returned in least significant bits of xmm0
// ├─1:index of the MOST significant, set, bit is used
// │ regardless of corresponding input element validity
// │ each bit of intres2 is expanded to byte/word
// │┌─0:negation of intres1 is for all 16 (8) bits
// │├─1:negation of intres1 is masked by reg/mem validity
// ││┌─intres1 is negated (1s complement)
// │││┌─mode{equalany,ranges,equaleach,equalordered}
// ││││ ┌─issigned
// ││││ │┌─is16bit
// u│││├┐││
.Lequalordered = 0b00001100
.Lequalorder16 = 0b00001101
.Lequalranges8 = 0b00000100

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@ -1,41 +0,0 @@
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
vi: set noet ft=asm ts=8 sw=8 fenc=utf-8 :vi
Copyright 2020 Justine Alexandra Roberts Tunney
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted, provided that the
above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
*/
#include "libc/macros.internal.h"
// Support code for fast integer division by Si units.
//
// Division by magnums is described in Hacker's Delight and is
// usually generated automatically by compilers, but sadly not
// when we optimize for size and idiv goes at least 10x slower
// so we do this which saves space while avoiding build tuning
//
// @param rdi is number to divide
// @param cl is magnum #1
// @param rdx is magnum #2
// @return quotient
tinydivsi:
.leafprologue
mov %rdi,%rax
imul %rdx
mov %rdx,%rax
sar %cl,%rax
sar $63,%rdi
sub %rdi,%rax
.leafepilogue
.endfn tinydivsi,globl

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@ -1,36 +0,0 @@
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
vi: set noet ft=asm ts=8 sw=8 fenc=utf-8 :vi
Copyright 2020 Justine Alexandra Roberts Tunney
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted, provided that the
above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
*/
#include "libc/macros.internal.h"
// 32-bit strlen that's tiny and near optimal if data's tiny.
//
// @param RDI is wchar_t *s
// @param EAX is unsigned length
// @see libc/nexgen32e/strsak32.S
.ftrace1
tinywcslen:
.ftrace2
.leafprologue
xor %eax,%eax
1: cmpl $0,(%rdi,%rax,4)
jz 2f
inc %eax
jmp 1b
2: .leafepilogue
.endfn tinywcslen,globl

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@ -1,39 +0,0 @@
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
vi: set noet ft=asm ts=8 sw=8 fenc=utf-8 :vi
Copyright 2020 Justine Alexandra Roberts Tunney
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted, provided that the
above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
*/
#include "libc/macros.internal.h"
// 32-bit strnlen that's tiny and near optimal if data's tiny.
//
// @param RDI is wchar_t *s
// @param RSI is size_t n
// @param EAX is unsigned length
// @see libc/nexgen32e/strsak32.S
.ftrace1
tinywcsnlen:
.ftrace2
.leafprologue
xor %eax,%eax
1: cmp %esi,%eax
jae 2f
cmpl $0,(%rdi,%rax,4)
jz 2f
inc %eax
jmp 1b
2: .leafepilogue
.endfn tinywcsnlen,globl

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@ -1,81 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_NEXGEN32E_VIDYA_H_
#define COSMOPOLITAN_LIBC_NEXGEN32E_VIDYA_H_
#define VIDYA_ROWS 25
#define VIDYA_COLUMNS 80
#define VIDYA_SIZE (VIDYA_ROWS * VIDYA_COLUMNS * 2)
#define VIDYA_MODE_MDA 7
#define VIDYA_MODE_CGA 3
#define VIDYA_ADDR_MDA 0xb0000
#define VIDYA_ADDR_CGA 0xb8000
#define VIDYA_ATTR_NORMAL 0x07 /* cozy default for both mda and cga */
#define VIDYA_REWIND ~0x7fff /* derived from mode addr min. lzcnt */
#define VIDYA_SERVICE 0x10
#define VIDYA_SET_MODE 0x0003
#define VIDYA_SET_CURSOR 0x0100
#define VIDYA_SET_CURSOR_NONE 0x2000
#define VIDYA_SET_BLINKING 0x1003
#define VIDYA_SET_BLINKING_NONE 0x0000
enum VidyaMode {
kVidyaModeMda = VIDYA_MODE_MDA,
kVidyaModeCga = VIDYA_MODE_CGA
};
enum VidyaColor {
kVidyaColorBlack = 0x0,
kVidyaColorBlue = 0x1,
kVidyaColorGreen = 0x2,
kVidyaColorCyan = 0x3,
kVidyaColorRed = 0x4,
kVidyaColorMagenta = 0x5,
kVidyaColorBrown = 0x6,
kVidyaColorLightGray = 0x7,
kVidyaColorDarkGray = 0x8,
kVidyaColorLightBlue = 0x9,
kVidyaColorLightGreen = 0xa,
kVidyaColorLightCyan = 0xb,
kVidyaColorLightRed = 0xc,
kVidyaColorLightMagenta = 0xd,
kVidyaColorYellow = 0xe,
kVidyaColorWhite = 0xf
};
struct thatispacked VidyaCell {
unsigned glyph : 8; /* IBM Code Page 437 */
union VidyaAttr {
enum {
kVidyaAttrBlank = 0x00,
kVidyaAttrNormal = VIDYA_ATTR_NORMAL,
kVidyaAttrMdaFlipped = 0x70,
kVidyaAttrMdaFlippedFaded = 0x78,
kVidyaAttrMdaFlippedIntense = 0xf0,
kVidyaAttrMdaFlippedFadedIntense = 0xf8
} preset : 8;
struct VidyaTextDecoration { /* MDA Only */
unsigned underline : 1;
unsigned __ignore1 : 1;
unsigned bold : 1;
unsigned __ignore2 : 3;
unsigned intense : 1;
} decoration;
struct { /* CGA Only */
enum VidyaColor fg : 4;
enum VidyaColor bg : 4;
} color;
} attr;
};
typedef union VidyaAttr VidyaAttr;
typedef struct VidyaCell VidyaCell;
typedef struct VidyaCell VidyaPage[VIDYA_ROWS][VIDYA_COLUMNS];
__far VidyaPage *vinit(enum VidyaMode mode);
__far VidyaPage *vcls(__far VidyaCell *pos);
__far VidyaCell *vputc(__far VidyaCell *pos, int c);
__far VidyaCell *vputs(__far VidyaCell *pos, const char *str);
__far VidyaCell *vtput(__far VidyaCell *pos, const void *data, size_t size);
__far VidyaCell *vscroll(__far VidyaCell *pos, size_t bytes);
#endif /* COSMOPOLITAN_LIBC_NEXGEN32E_VIDYA_H_ */

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@ -1,33 +0,0 @@
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-
vi: set noet ft=asm ts=8 sw=8 fenc=utf-8 :vi
╞══════════════════════════════════════════════════════════════════════════════╡
Copyright 2020 Justine Alexandra Roberts Tunney
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted, provided that the
above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
╚─────────────────────────────────────────────────────────────────────────────*/
// Reconfigures transcendental math coprocessor.
//
// @param \conf can be absent to restore default
// @clob x87 status and control words only
// @see Intel Manual V.1 §8.1.5
// @mode long,legacy
.macro x87conf conf=$0x33f
push %ax
pushw \conf
fclex
fldcw (%rsp)
pop %ax
pop %ax
.endm

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@ -20,7 +20,6 @@
#include "libc/dce.h"
#include "libc/macros.internal.h"
#include "libc/thread/pt.internal.h"
#include "libc/nexgen32e/macros.h"
#define SIG_IGN 1