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Make terminal ui binaries work well everywhere

Browse source 
Here's some screenshots of an emulator tui program that was compiled on
Linux, then scp'd it to Windows, Mac, and FreeBSD.

https://justine.storage.googleapis.com/blinkenlights-cmdexe.png
https://justine.storage.googleapis.com/blinkenlights-imac.png
https://justine.storage.googleapis.com/blinkenlights-freebsd.png
https://justine.storage.googleapis.com/blinkenlights-lisp.png

How is this even possible that we have a nontrivial ui binary that just
works on Mac, Windows, Linux, and BSD? Surely a first ever achievement.

Fixed many bugs. Bootstrapped John McCarthy's metacircular evaluator on
bare metal in half the size of Altair BASIC (about 2.5kb) and ran it in
emulator for fun and profit.
This commit is contained in:
Justine Tunney 2020-10-10 21:18:53 -07:00
parent 680daf1210
commit 9e3e985ae5
276 changed files with 7026 additions and 3790 deletions
Download patch file Download diff file Expand all files Collapse all files

51
tool/build/lib/machine.c
View file

@ -17,11 +17,6 @@
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/conv/conv.h"
#include "libc/dce.h"
#include "libc/log/check.h"
#include "libc/log/log.h"
#include "libc/macros.h"
#include "libc/runtime/runtime.h"
#include "tool/build/lib/abp.h"
@ -558,7 +553,7 @@ static void OpMovZvqpIvqp(struct Machine *m, uint32_t rde) {
WriteRegister(rde, RegRexbSrm(m, rde), m->xedd->op.uimm0);
}
static void OpIncZv(struct Machine *m, uint32_t rde) {
static relegated void OpIncZv(struct Machine *m, uint32_t rde) {
if (!Osz(rde)) {
Write32(RegSrm(m, rde), Inc32(Read32(RegSrm(m, rde)), 0, &m->flags));
} else {
@ -566,7 +561,7 @@ static void OpIncZv(struct Machine *m, uint32_t rde) {
}
}
static void OpDecZv(struct Machine *m, uint32_t rde) {
static relegated void OpDecZv(struct Machine *m, uint32_t rde) {
if (!Osz(rde)) {
Write32(RegSrm(m, rde), Dec32(Read32(RegSrm(m, rde)), 0, &m->flags));
} else {
@ -888,22 +883,6 @@ static void OpBsubiImm(struct Machine *m, uint32_t rde) {
Bsubi(m, rde, m->xedd->op.uimm0);
}
static relegated void LoadFarPointer(struct Machine *m, uint32_t rde,
uint8_t seg[8]) {
uint32_t fp;
fp = Read32(ComputeReserveAddressRead4(m, rde));
Write64(seg, (fp & 0x0000ffff) << 4);
Write16(RegRexrReg(m, rde), fp >> 16);
}
static relegated void OpLes(struct Machine *m, uint32_t rde) {
LoadFarPointer(m, rde, m->es);
}
static relegated void OpLds(struct Machine *m, uint32_t rde) {
LoadFarPointer(m, rde, m->ds);
}
static void OpLgdtMs(struct Machine *m, uint32_t rde) {
}
@ -1234,6 +1213,22 @@ static void OpNegEb(struct Machine *m, uint32_t rde) {
AluEb(m, rde, Neg8);
}
static relegated void LoadFarPointer(struct Machine *m, uint32_t rde,
uint8_t seg[8]) {
uint32_t fp;
fp = Read32(ComputeReserveAddressRead4(m, rde));
Write64(seg, (fp & 0x0000ffff) << 4);
Write16(RegRexrReg(m, rde), fp >> 16);
}
static relegated void OpLes(struct Machine *m, uint32_t rde) {
LoadFarPointer(m, rde, m->es);
}
static relegated void OpLds(struct Machine *m, uint32_t rde) {
LoadFarPointer(m, rde, m->ds);
}
static relegated void Loop(struct Machine *m, uint32_t rde, bool cond) {
uint64_t cx;
cx = Read64(m->cx) - 1;
@ -1386,10 +1381,12 @@ static void OpSalc(struct Machine *m, uint32_t rde) {
}
static void OpNopEv(struct Machine *m, uint32_t rde) {
if (ModrmMod(rde) == 0b01 && ModrmReg(rde) == 0 && ModrmRm(rde) == 0b101) {
OpBofram(m, rde);
} else {
OpNoop(m, rde);
switch (ModrmMod(rde) << 6 | ModrmReg(rde) << 3 | ModrmRm(rde)) {
case 0x45:
OpBofram(m, rde);
break;
default:
OpNoop(m, rde);
}
}