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DREAMWEB: Misc. register usage cleaning

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This commit is contained in:
Bertrand Augereau 2011-07-26 00:56:24 +02:00
parent 521ffc5b56
commit dfec38c615
2 changed files with 17 additions and 34 deletions
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48
engines/dreamweb/sprite.cpp
View File

@ -28,19 +28,17 @@ namespace DreamGen {
Sprite *DreamGenContext::spritetable() {
push(es);
push(bx);
es = data.word(kBuffers);
bx = kSpritetable;
Sprite *sprite = (Sprite *)es.ptr(bx, 16 * sizeof(Sprite));
bx = pop();
Sprite *sprite = (Sprite *)es.ptr(kSpritetable, 16 * sizeof(Sprite));
es = pop();
return sprite;
}
void DreamGenContext::printsprites() {
printsprites(es);
}
void DreamGenContext::printsprites(uint16 dst) {
for (size_t priority = 0; priority < 7; ++priority) {
Sprite *sprites = spritetable();
for (size_t j = 0; j < 16; ++j) {
@ -51,27 +49,23 @@ void DreamGenContext::printsprites() {
continue;
if (sprite.hidden == 1)
continue;
printasprite(&sprite);
printasprite(dst, &sprite);
}
}
}
void DreamGenContext::printasprite(const Sprite *sprite) {
push(es);
push(bx);
ds = READ_LE_UINT16(&sprite->w6);
ax = sprite->y;
if (al >= 220) {
bx = data.word(kMapady) - (256 - al);
void DreamGenContext::printasprite(uint16 dst, const Sprite *sprite) {
uint16 x, y;
if (sprite->y >= 220) {
y = data.word(kMapady) - (256 - sprite->y);
} else {
bx = ax + data.word(kMapady);
y = sprite->y + data.word(kMapady);
}
ax = sprite->x;
if (al >= 220) {
di = data.word(kMapadx) - (256 - al);
if (sprite->x >= 220) {
x = data.word(kMapadx) - (256 - sprite->x);
} else {
di = ax + data.word(kMapadx);
x = sprite->x + data.word(kMapadx);
}
uint8 c;
@ -80,12 +74,7 @@ void DreamGenContext::printasprite(const Sprite *sprite) {
else
c = 0;
uint8 width, height;
showframe(es, ds, di, bx, sprite->b15, c, &width, &height);
cl = width;
ch = height;
bx = pop();
es = pop();
showframe(es, READ_LE_UINT16(&sprite->w6), x, y, sprite->b15, c, &width, &height);
}
void DreamGenContext::clearsprites() {
@ -148,13 +137,6 @@ void DreamGenContext::initman() {
sprite->priority = 4;
sprite->b22 = 0;
sprite->b29 = 0;
// Recover es:bx from sprite
es = data.word(kBuffers);
bx = kSpritetable;
Sprite *sprites = (Sprite *)es.ptr(bx, sizeof(Sprite) * 16);
bx += 32 * (sprite - sprites);
//
}
void DreamGenContext::mainmanCPP(Sprite *sprite) {

3
engines/dreamweb/stubs.h
View File

@ -32,6 +32,7 @@
void convertkey();
void cls();
void printsprites();
void printsprites(uint16 dst);
void quickquit();
void readoneblock();
void printundermon();
@ -59,7 +60,7 @@
Sprite *spritetable();
void showframe();
void showframe(uint16 dst, uint16 src, uint16 x, uint16 y, uint8 frameNumber, uint8 effectsFlag, uint8 *width, uint8 *height);
void printasprite(const Sprite *sprite);
void printasprite(uint16 dst, const Sprite *sprite);
void width160();
void multiput(uint16 x, uint16 y, uint8 width, uint8 height);
void multiput();