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MMU mode MOVEM.x <regs>,-(An) where <regs> includes target An update.
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@tonioni
tonioni committed Sep 17, 2023
1 parent c58eee0 commit fe44442
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Showing 6 changed files with 259 additions and 126 deletions.
72 changes: 48 additions & 24 deletions cpuemu_31.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -18663,12 +18663,14 @@ uae_u32 REGPARAM2 op_4890_31_ff(uae_u32 opcode)
mmu040_movem = 1;
mmu040_movem_ea = srca;
while (dmask) {
put_word_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]));
int predec = 0;
put_word_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]) - predec);
srca += 2;
dmask = movem_next[dmask];
}
while (amask) {
put_word_mmu040(srca, m68k_areg (regs, movem_index1[amask]));
int predec = 0;
put_word_mmu040(srca, m68k_areg (regs, movem_index1[amask]) - predec);
srca += 2;
amask = movem_next[amask];
}
Expand Down Expand Up @@ -18696,12 +18698,14 @@ uae_u32 REGPARAM2 op_48a0_31_ff(uae_u32 opcode)
mmu040_movem_ea = srca;
while (amask) {
srca -= 2;
put_word_mmu040(srca, m68k_areg (regs, movem_index2[amask]));
int predec = movem_index2[amask] != dstreg ? 0 : 2;
put_word_mmu040(srca, m68k_areg (regs, movem_index2[amask]) - predec);
amask = movem_next[amask];
}
while (dmask) {
srca -= 2;
put_word_mmu040(srca, m68k_dreg (regs, movem_index2[dmask]));
int predec = 0;
put_word_mmu040(srca, m68k_dreg (regs, movem_index2[dmask]) - predec);
dmask = movem_next[dmask];
}
m68k_areg(regs, dstreg) = srca;
Expand All @@ -18728,12 +18732,14 @@ uae_u32 REGPARAM2 op_48a8_31_ff(uae_u32 opcode)
mmu040_movem = 1;
mmu040_movem_ea = srca;
while (dmask) {
put_word_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]));
int predec = 0;
put_word_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]) - predec);
srca += 2;
dmask = movem_next[dmask];
}
while (amask) {
put_word_mmu040(srca, m68k_areg (regs, movem_index1[amask]));
int predec = 0;
put_word_mmu040(srca, m68k_areg (regs, movem_index1[amask]) - predec);
srca += 2;
amask = movem_next[amask];
}
Expand Down Expand Up @@ -18761,12 +18767,14 @@ uae_u32 REGPARAM2 op_48b0_31_ff(uae_u32 opcode)
mmu040_movem = 1;
mmu040_movem_ea = srca;
while (dmask) {
put_word_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]));
int predec = 0;
put_word_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]) - predec);
srca += 2;
dmask = movem_next[dmask];
}
while (amask) {
put_word_mmu040(srca, m68k_areg (regs, movem_index1[amask]));
int predec = 0;
put_word_mmu040(srca, m68k_areg (regs, movem_index1[amask]) - predec);
srca += 2;
amask = movem_next[amask];
}
Expand All @@ -18790,12 +18798,14 @@ uae_u32 REGPARAM2 op_48b8_31_ff(uae_u32 opcode)
mmu040_movem = 1;
mmu040_movem_ea = srca;
while (dmask) {
put_word_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]));
int predec = 0;
put_word_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]) - predec);
srca += 2;
dmask = movem_next[dmask];
}
while (amask) {
put_word_mmu040(srca, m68k_areg (regs, movem_index1[amask]));
int predec = 0;
put_word_mmu040(srca, m68k_areg (regs, movem_index1[amask]) - predec);
srca += 2;
amask = movem_next[amask];
}
Expand All @@ -18820,12 +18830,14 @@ uae_u32 REGPARAM2 op_48b9_31_ff(uae_u32 opcode)
mmu040_movem = 1;
mmu040_movem_ea = srca;
while (dmask) {
put_word_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]));
int predec = 0;
put_word_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]) - predec);
srca += 2;
dmask = movem_next[dmask];
}
while (amask) {
put_word_mmu040(srca, m68k_areg (regs, movem_index1[amask]));
int predec = 0;
put_word_mmu040(srca, m68k_areg (regs, movem_index1[amask]) - predec);
srca += 2;
amask = movem_next[amask];
}
Expand Down Expand Up @@ -18869,12 +18881,14 @@ uae_u32 REGPARAM2 op_48d0_31_ff(uae_u32 opcode)
mmu040_movem = 1;
mmu040_movem_ea = srca;
while (dmask) {
put_long_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]));
int predec = 0;
put_long_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]) - predec);
srca += 4;
dmask = movem_next[dmask];
}
while (amask) {
put_long_mmu040(srca, m68k_areg (regs, movem_index1[amask]));
int predec = 0;
put_long_mmu040(srca, m68k_areg (regs, movem_index1[amask]) - predec);
srca += 4;
amask = movem_next[amask];
}
Expand Down Expand Up @@ -18902,12 +18916,14 @@ uae_u32 REGPARAM2 op_48e0_31_ff(uae_u32 opcode)
mmu040_movem_ea = srca;
while (amask) {
srca -= 4;
put_long_mmu040(srca, m68k_areg (regs, movem_index2[amask]));
int predec = movem_index2[amask] != dstreg ? 0 : 4;
put_long_mmu040(srca, m68k_areg (regs, movem_index2[amask]) - predec);
amask = movem_next[amask];
}
while (dmask) {
srca -= 4;
put_long_mmu040(srca, m68k_dreg (regs, movem_index2[dmask]));
int predec = 0;
put_long_mmu040(srca, m68k_dreg (regs, movem_index2[dmask]) - predec);
dmask = movem_next[dmask];
}
m68k_areg(regs, dstreg) = srca;
Expand All @@ -18934,12 +18950,14 @@ uae_u32 REGPARAM2 op_48e8_31_ff(uae_u32 opcode)
mmu040_movem = 1;
mmu040_movem_ea = srca;
while (dmask) {
put_long_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]));
int predec = 0;
put_long_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]) - predec);
srca += 4;
dmask = movem_next[dmask];
}
while (amask) {
put_long_mmu040(srca, m68k_areg (regs, movem_index1[amask]));
int predec = 0;
put_long_mmu040(srca, m68k_areg (regs, movem_index1[amask]) - predec);
srca += 4;
amask = movem_next[amask];
}
Expand Down Expand Up @@ -18967,12 +18985,14 @@ uae_u32 REGPARAM2 op_48f0_31_ff(uae_u32 opcode)
mmu040_movem = 1;
mmu040_movem_ea = srca;
while (dmask) {
put_long_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]));
int predec = 0;
put_long_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]) - predec);
srca += 4;
dmask = movem_next[dmask];
}
while (amask) {
put_long_mmu040(srca, m68k_areg (regs, movem_index1[amask]));
int predec = 0;
put_long_mmu040(srca, m68k_areg (regs, movem_index1[amask]) - predec);
srca += 4;
amask = movem_next[amask];
}
Expand All @@ -18996,12 +19016,14 @@ uae_u32 REGPARAM2 op_48f8_31_ff(uae_u32 opcode)
mmu040_movem = 1;
mmu040_movem_ea = srca;
while (dmask) {
put_long_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]));
int predec = 0;
put_long_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]) - predec);
srca += 4;
dmask = movem_next[dmask];
}
while (amask) {
put_long_mmu040(srca, m68k_areg (regs, movem_index1[amask]));
int predec = 0;
put_long_mmu040(srca, m68k_areg (regs, movem_index1[amask]) - predec);
srca += 4;
amask = movem_next[amask];
}
Expand All @@ -19026,12 +19048,14 @@ uae_u32 REGPARAM2 op_48f9_31_ff(uae_u32 opcode)
mmu040_movem = 1;
mmu040_movem_ea = srca;
while (dmask) {
put_long_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]));
int predec = 0;
put_long_mmu040(srca, m68k_dreg (regs, movem_index1[dmask]) - predec);
srca += 4;
dmask = movem_next[dmask];
}
while (amask) {
put_long_mmu040(srca, m68k_areg (regs, movem_index1[amask]));
int predec = 0;
put_long_mmu040(srca, m68k_areg (regs, movem_index1[amask]) - predec);
srca += 4;
amask = movem_next[amask];
}
Expand Down
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