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sh2 drc, make B/W read functions signed (reduces generated code size)

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This commit is contained in:
kub 2019-04-26 18:53:21 +02:00
parent ed7e915078
commit aa4c4cb951
7 changed files with 85 additions and 60 deletions
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8
cpu/sh2/mame/sh2pico.c
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@ -121,7 +121,7 @@ int sh2_execute_interpreter(SH2 *sh2, int cycles)
if (sh2->delay)
{
sh2->ppc = sh2->delay;
opcode = RW(sh2, sh2->delay);
opcode = (UINT32)(UINT16)RW(sh2, sh2->delay);
// TODO: more branch types
if ((opcode >> 13) == 5) { // BRA/BSR
@ -139,7 +139,7 @@ int sh2_execute_interpreter(SH2 *sh2, int cycles)
else
{
sh2->ppc = sh2->pc;
opcode = RW(sh2, sh2->pc);
opcode = (UINT32)(UINT16)RW(sh2, sh2->pc);
}
sh2->delay = 0;
@ -232,13 +232,13 @@ int sh2_execute_interpreter(SH2 *sh2, int cycles)
if (sh2->delay)
{
sh2->ppc = sh2->delay;
opcode = RW(sh2, sh2->delay);
opcode = (UINT32)(UINT16)RW(sh2, sh2->delay);
sh2->pc -= 2;
}
else
{
sh2->ppc = sh2->pc;
opcode = RW(sh2, sh2->pc);
opcode = (UINT32)(UINT16)RW(sh2, sh2->pc);
}
sh2->delay = 0;