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refactor DHIRES,IOUDIS switches to C

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This commit is contained in:
Aaron Culliney 2014-05-10 22:07:25 -07:00
parent 2932c6b832
commit cb387f21dc
2 changed files with 44 additions and 39 deletions
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39
src/asm386/memory.S
View File

@ -152,45 +152,6 @@
return80: movb $0x80,%al
ret
/* unset ioudis flag and read_gc_strobe */
E(iie_ioudis_off)
andl $~SS_IOUDIS, SN(softswitches)
jmp SN(read_gc_strobe)
/* set ioudis flag and read_gc_strobe */
E(iie_ioudis_on)
orl $SS_IOUDIS, SN(softswitches)
jmp SN(read_gc_strobe)
/* check ioudis flag and read_gc_strobe */
E(iie_check_ioudis)
call SN(read_gc_strobe)
testl $SS_IOUDIS, SN(softswitches)
jnz return80
xorb %al, %al
ret
E(iie_dhires_on)
testl $SS_DHIRES, SN(softswitches)
jnz ram_nop
orl $SS_DHIRES, SN(softswitches)
call SN(video_redraw)
ret
E(iie_dhires_off)
testl $SS_DHIRES, SN(softswitches)
jz ram_nop
andl $~SS_DHIRES, SN(softswitches)
call SN(video_redraw)
ret
/* check dhires flag and read_gc_strobe */
E(iie_check_dhires)
call SN(read_gc_strobe)
testl $SS_DHIRES, SN(softswitches)
jnz return80
ret
E(iie_check_text)
testl $SS_TEXT, SN(softswitches)
jnz return80

44
src/vm.c
View File

@ -696,3 +696,47 @@ GLUE_C_READ(iie_check_altchar)
return (softswitches & SS_ALTCHAR) ? 0x80 : 0x00;
}
GLUE_C_READ(iie_ioudis_off)
{
softswitches &= ~SS_IOUDIS;
return c_read_gc_strobe(ea);
}
GLUE_C_READ(iie_ioudis_on)
{
softswitches |= SS_IOUDIS;
return c_read_gc_strobe(ea);
}
GLUE_C_READ(iie_check_ioudis)
{
c_read_gc_strobe(ea);
return (softswitches & SS_IOUDIS) ? 0x80 : 0x00;
}
GLUE_C_READ(iie_dhires_on)
{
// FIXME : does this depend on IOUDIS?
if (!(softswitches & SS_DHIRES)) {
softswitches |= SS_DHIRES;
video_redraw();
}
return 0x0;
}
GLUE_C_READ(iie_dhires_off)
{
// FIXME : does this depend on IOUDIS?
if (softswitches & SS_DHIRES) {
softswitches &= ~SS_DHIRES;
video_redraw();
}
return 0x0;
}
GLUE_C_READ(iie_check_dhires)
{
c_read_gc_strobe(ea); // HACK FIXME : is this correct?
return (softswitches & SS_DHIRES) ? 0x80 : 0x00;
}