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Grab further copy flags.

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This commit is contained in:
Thomas Harte 2021-09-28 22:11:58 -04:00
parent 0c998d60cb
commit 140e24ef15
2 changed files with 16 additions and 8 deletions
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21
Machines/Amiga/Blitter.cpp
View File

@ -24,6 +24,9 @@ void Blitter::set_control(int index, uint16_t value) {
line_sign_ = (value & 0x0040) ? -1 : 1;
direction_ = one_dot_ ? uint32_t(-1) : uint32_t(1);
inclusive_fill_ = (value & 0x0008);
exclusive_fill_ = (value & 0x0010);
fill_carry_ = (value & 0x0004);
} else {
minterms_ = value & 0xff;
channel_enables_[3] = value & 0x100;
@ -199,7 +202,11 @@ bool Blitter::advance() {
}
} else {
// Copy mode.
printf("!!! Copy %08x\n", pointer_[3]);
printf("!!! Copy [%d %d%d%d] %08x\n", int32_t(direction_), inclusive_fill_, exclusive_fill_, fill_carry_, pointer_[3]);
if(pointer_[3] == 0x0008ad2) {
printf("");
}
// Quick hack: do the entire action atomically. Isn't life fabulous?
for(int y = 0; y < height_; y++) {
@ -225,13 +232,11 @@ bool Blitter::advance() {
const uint16_t a_mask = (x == 0) ? a_mask_[0] : ((x == width_ - 1) ? a_mask_[1] : 0xffff);
ram_[pointer_[3] & ram_mask_] =
apply_minterm(
uint16_t(a_ & a_mask),
b_,
c_,
minterms_);
printf("%04x [@ %08x] %04x %04x [%02x] -> %04x [@ %08x]\n", a_, pointer_[0] << 1, b_, c_, minterms_, ram_[pointer_[3] & ram_mask_], pointer_[3] << 1);
apply_minterm<uint16_t>(
a_ & a_mask, // TODO: is this properly-placed?
b_,
c_,
minterms_);
pointer_[3] += direction_;
}

3
Machines/Amiga/Blitter.hpp
View File

@ -51,6 +51,9 @@ class Blitter: public DMADevice<4> {
int line_sign_ = 1;
uint32_t direction_ = 1;
bool inclusive_fill_ = false;
bool exclusive_fill_ = false;
bool fill_carry_ = false;
bool channel_enables_[4]{};