diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/scrcmd.c | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/src/scrcmd.c b/src/scrcmd.c new file mode 100644 index 000000000..bb8d969c1 --- /dev/null +++ b/src/scrcmd.c @@ -0,0 +1,223 @@ +#include "global.h" +#include "gba/isagbprint.h" +#include "script.h" +#include "event_data.h" + +extern u16 (*const gSpecials[])(void); +extern u16 (*const gSpecialsEnd[])(void); +extern const u8 *const gStdScripts[]; +extern const u8 *const gStdScriptsEnd[]; + +EWRAM_DATA ptrdiff_t gVScriptOffset = 0; +EWRAM_DATA u8 gUnknown_20370AC = 0; +EWRAM_DATA u16 gUnknown_20370AE = 0; +EWRAM_DATA u16 gUnknown_20370B0 = 0; +EWRAM_DATA u16 gUnknown_20370B2 = 0; +EWRAM_DATA u16 gUnknown_20370B4 = 0; +EWRAM_DATA u16 gUnknown_20370B6 = 0; + +// This is defined in here so the optimizer can't see its value when compiling +// script.c. +void * const gNullScriptPtr = NULL; + +const u8 sScriptConditionTable[6][3] = + { +// < = > + 1, 0, 0, // < + 0, 1, 0, // = + 0, 0, 1, // > + 1, 1, 0, // <= + 0, 1, 1, // >= + 1, 0, 1, // != + }; + + + +#define SCRCMD_DEF(name) bool8 name(struct ScriptContext *ctx) + +SCRCMD_DEF(ScrCmd_nop) +{ + return FALSE; +} + +SCRCMD_DEF(ScrCmd_nop1) +{ + return FALSE; +} + +SCRCMD_DEF(ScrCmd_end) +{ + StopScript(ctx); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_gotonative) +{ + bool8 (*func)(void) = (bool8 (*)(void))ScriptReadWord(ctx); + SetupNativeScript(ctx, func); + return TRUE; +} + +SCRCMD_DEF(ScrCmd_special) +{ + u16 (*const *specialPtr)(void) = gSpecials + ScriptReadHalfword(ctx); + if (specialPtr < gSpecialsEnd) + (*specialPtr)(); + else + AGB_ASSERT_EX(0, "C:/WORK/POKeFRLG/src/pm_lgfr_ose/source/scrcmd.c", 241); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_specialvar) +{ + u16 * varPtr = GetVarPointer(ScriptReadHalfword(ctx)); + u16 (*const *specialPtr)(void) = gSpecials + ScriptReadHalfword(ctx); + if (specialPtr < gSpecialsEnd) + *varPtr = (*specialPtr)(); + else + AGB_ASSERT_EX(0, "C:/WORK/POKeFRLG/src/pm_lgfr_ose/source/scrcmd.c", 263); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_callnative) +{ + void (*func )(void) = ((void (*)(void))ScriptReadWord(ctx)); + func(); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_waitstate) +{ + ScriptContext1_Stop(); + return TRUE; +} + +SCRCMD_DEF(ScrCmd_goto) +{ + const u8 * scrptr = (const u8 *)ScriptReadWord(ctx); + ScriptJump(ctx, scrptr); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_return) +{ + ScriptReturn(ctx); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_call) +{ + const u8 * scrptr = (const u8 *)ScriptReadWord(ctx); + ScriptCall(ctx, scrptr); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_goto_if) +{ + u8 condition = ScriptReadByte(ctx); + const u8 * scrptr = (const u8 *)ScriptReadWord(ctx); + if (sScriptConditionTable[condition][ctx->comparisonResult] == 1) + ScriptJump(ctx, scrptr); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_call_if) +{ + u8 condition = ScriptReadByte(ctx); + const u8 * scrptr = (const u8 *)ScriptReadWord(ctx); + if (sScriptConditionTable[condition][ctx->comparisonResult] == 1) + ScriptCall(ctx, scrptr); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_setvaddress) +{ + u32 addr1 = (u32)ctx->scriptPtr - 1; + u32 addr2 = ScriptReadWord(ctx); + + gVScriptOffset = addr2 - addr1; + return FALSE; +} + +SCRCMD_DEF(ScrCmd_vgoto) +{ + const u8 * scrptr = (const u8 *)ScriptReadWord(ctx); + ScriptJump(ctx, scrptr - gVScriptOffset); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_vcall) +{ + const u8 * scrptr = (const u8 *)ScriptReadWord(ctx); + ScriptCall(ctx, scrptr - gVScriptOffset); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_vgoto_if) +{ + u8 condition = ScriptReadByte(ctx); + const u8 * scrptr = (const u8 *)ScriptReadWord(ctx) - gVScriptOffset; + if (sScriptConditionTable[condition][ctx->comparisonResult] == 1) + ScriptJump(ctx, scrptr); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_vcall_if) +{ + u8 condition = ScriptReadByte(ctx); + const u8 * scrptr = (const u8 *)ScriptReadWord(ctx) - gVScriptOffset; + if (sScriptConditionTable[condition][ctx->comparisonResult] == 1) + ScriptCall(ctx, scrptr); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_gotostd) +{ + u8 stdIdx = ScriptReadByte(ctx); + const u8 *const * script = gStdScripts + stdIdx; + if (script < gStdScriptsEnd) + ScriptJump(ctx, *script); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_callstd) +{ + u8 stdIdx = ScriptReadByte(ctx); + const u8 *const * script = gStdScripts + stdIdx; + if (script < gStdScriptsEnd) + ScriptCall(ctx, *script); + return FALSE; +} + +SCRCMD_DEF(ScrCmd_gotostd_if) +{ + u8 condition = ScriptReadByte(ctx); + u8 stdIdx = ScriptReadByte(ctx); + if (sScriptConditionTable[condition][ctx->comparisonResult] == 1) + { + const u8 *const * script = gStdScripts + stdIdx; + if (script < gStdScriptsEnd) + ScriptJump(ctx, *script); + } + return FALSE; +} + +SCRCMD_DEF(ScrCmd_callstd_if) +{ + u8 condition = ScriptReadByte(ctx); + u8 stdIdx = ScriptReadByte(ctx); + if (sScriptConditionTable[condition][ctx->comparisonResult] == 1) + { + const u8 *const * script = gStdScripts + stdIdx; + if (script < gStdScriptsEnd) + ScriptCall(ctx, *script); + } + return FALSE; +} + +u8 * const sScriptStringVars[] = +{ + gStringVar1, + gStringVar2, + gStringVar3, +}; |